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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K
(Mark One)

☒ | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2019
or

☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number: 1-9743
EOG RESOURCES, INC.
(Exact name of registrant as specified in its charter)

Delaware |  | 47-0684736
(State or other jurisdiction of incorporation or organization) |  | (I.R.S. Employer Identification No.)

1111 Bagby, Sky Lobby 2, Houston, Texas 77002
(Address of principal executive offices) (Zip Code)
Registrant's telephone number, including area code: 713-651-7000
Securities registered pursuant to Section 12(b) of the Act:

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Common Stock, par value $0.01 per share | EOG | New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:
None.
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act. Yes ☐ No ☒
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐
Smaller reporting company ☐ Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒
State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter. Common Stock aggregate market value held by non-affiliates as of June 30, 2019: $54,011 million.
Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date. Class: Common Stock, par value $0.01 per share, 582,054,451 shares outstanding as of February 13, 2020.
Documents incorporated by reference. Portions of the Definitive Proxy Statement for the registrant's 2020 Annual Meeting of Stockholders, to be filed within 120 days after December 31, 2019, are incorporated by reference into Part III of this report.

TABLE OF CONTENTS

|  | Page
PART I |
ITEM 1. | Business | 1
| General | 1
| Exploration and Production | 1
| Marketing | 4
| Wellhead Volumes and Prices | 5
| Competition | 7
| Regulation | 7
| Other Matters | 11
| Information About Our Executive Officers | 12
ITEM 1A. | Risk Factors | 13
ITEM 1B. | Unresolved Staff Comments | 23
ITEM 2. | Properties | 24
| Oil and Gas Exploration and Production - Properties and Reserves | 24
ITEM 3. | Legal Proceedings | 27
ITEM 4. | Mine Safety Disclosures | 27
PART II |
ITEM 5. | Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities | 28
ITEM 6. | Selected Financial Data | 30
ITEM 7. | Management's Discussion and Analysis of Financial Condition and Results of Operations | 31
ITEM 7A. | Quantitative and Qualitative Disclosures About Market Risk | 50
ITEM 8. | Financial Statements and Supplementary Data | 50
ITEM 9. | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure | 50
ITEM 9A. | Controls and Procedures | 50
ITEM 9B. | Other Information | 51
PART III |
ITEM 10. | Directors, Executive Officers and Corporate Governance | 51
ITEM 11. | Executive Compensation | 51
ITEM 12. | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters | 52
ITEM 13. | Certain Relationships and Related Transactions, and Director Independence | 53
ITEM 14. | Principal Accounting Fees and Services | 53
PART IV |
ITEM 15. | Exhibits, Financial Statement Schedules | 54
ITEM 16. | Form 10-K Summary | 54
SIGNATURES |

(i)

PART I
ITEM 1. Business
General
EOG Resources, Inc., a Delaware corporation organized in 1985, together with its subsidiaries (collectively, EOG), explores for, develops, produces and markets crude oil, natural gas liquids (NGLs) and natural gas primarily in major producing basins in the United States of America (United States or U.S.), The Republic of Trinidad and Tobago (Trinidad), The People's Republic of China (China), Canada and, from time to time, select other international areas. EOG's principal producing areas are further described in "Exploration and Production" below. EOG's Annual Reports on Form 10-K, Quarterly Reports on Form 10‑Q, Current Reports on Form 8-K and any amendments to those reports (including related exhibits and supplemental schedules) filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (as amended) are made available, free of charge, through EOG's website, as soon as reasonably practicable after such reports have been filed with, or furnished to, the United States Securities and Exchange Commission (SEC). EOG's website address is www.eogresources.com. Information on our website is not incorporated by reference into, and does not constitute a part of, this report.
At December 31, 2019, EOG's total estimated net proved reserves were 3,329 million barrels of oil equivalent (MMBoe), of which 1,694 million barrels (MMBbl) were crude oil and condensate reserves, 740 MMBbl were NGLs reserves and 5,370 billion cubic feet (Bcf), or 895 MMBoe, were natural gas reserves (see "Supplemental Information to Consolidated Financial Statements"). At such date, approximately 98% of EOG's net proved reserves, on a crude oil equivalent basis, were located in the United States, 1% in Trinidad and 1% in other international areas. Crude oil equivalent volumes are determined using a ratio of 1.0 barrel of crude oil and condensate or NGLs to 6.0 thousand cubic feet (Mcf) of natural gas.
As of December 31, 2019, EOG employed approximately 2,900 persons, including foreign national employees.
EOG's operations are all crude oil and natural gas exploration and production related. For information regarding the risks associated with EOG's domestic and foreign operations, see ITEM 1A, Risk Factors.
EOG's business strategy is to maximize the rate of return on investment of capital by controlling operating and capital costs and maximizing reserve recoveries. Pursuant to this strategy, each prospective drilling location is evaluated by its estimated rate of return. This strategy is intended to enhance the generation of cash flow and earnings from each unit of production on a cost-effective basis, allowing EOG to deliver long-term production growth while maintaining a strong balance sheet. EOG is focused on cost-effective utilization of advanced technology associated with three-dimensional seismic and microseismic data, the development of reservoir simulation models, the use of improved drilling equipment, completion technologies for horizontal drilling and formation evaluation. These advanced technologies are used, as appropriate, throughout EOG to reduce the risks and costs associated with all aspects of oil and gas exploration, development and exploitation. EOG implements its strategy primarily by emphasizing the drilling of internally generated prospects in order to find and develop low-cost reserves. Maintaining the lowest possible operating cost structure that is consistent with efficient, safe and environmentally responsible operations is also an important goal in the implementation of EOG's strategy.
With respect to information on EOG's working interest in wells or acreage, "net" oil and gas wells or acreage are determined by multiplying "gross" oil and gas wells or acreage by EOG's working interest in the wells or acreage.
Exploration and Production
United States Operations
EOG's operations are located in most of the productive basins in the United States with a focus on crude oil and, to a lesser extent, liquids-rich natural gas plays.
At December 31, 2019, on a crude oil equivalent basis, 52% of EOG's net proved reserves in the United States were crude oil and condensate, 23% were NGLs and 25% were natural gas. The majority of these reserves are in long-lived fields with well-established production characteristics. EOG believes that opportunities exist to increase production through continued development in and around many of these fields and through the utilization of applicable technologies. EOG also maintains an active exploration program designed to extend fields and add new trends and resource plays to its already broad portfolio.
1

The following is a summary of significant developments during 2019 and anticipated 2020 plans for certain areas of EOG's United States operations.

2019 |  | 2020
Area of Operation | Crude Oil & Condensate Volumes (MBbld) (1) | Natural Gas Liquids Volumes (MBbld) (1) | Natural Gas Volumes (MMcfd) (1) | Total Net Acres (2) |  | Net Well Completions |  | Expected Net Well Completions
Eagle Ford | 187 |  | 30 |  | 146 |  | 579,000 |  |  | 321 |  |  | 300 |
Austin Chalk | 15 |  | 7 |  | 41 |  | — |  | (3) | 14 |  |  | 6 |
Delaware Basin | 174 |  | 65 |  | 402 |  | 389,000 |  |  | 276 |  |  | 350 |
Rocky Mountain Area | 62 |  | 15 |  | 188 |  | 1,264,000 |  |  | 96 |  |  | 95 |
Upper Gulf Coast | — |  | — |  | 10 |  | 360,000 |  |  | 1 |  |  | — |
Mid-Continent | 10 |  | 2 |  | 20 |  | 120,000 |  |  | 32 |  |  | 20 |
Fort Worth Basin | 2 |  | 12 |  | 67 |  | 146,000 |  |  | — |  |  | — |
South Texas | 1 |  | 1 |  | 102 |  | 564,000 |  |  | 15 |  |  | 15 |
Marcellus Shale | — |  | — |  | 68 |  | 151,000 |  |  | — |  |  | — |

(1) | Thousand barrels per day or million cubic feet per day, as applicable. Total volumes exclude 5 MBbld of crude oil and condensate, 2 MBbld of NGLs and 25 MMcfd of natural gas related to other plays.

(2) | Total net acres excludes approximately 0.7 million net acres in other areas.

(3) | The Austin Chalk play encompasses the same net acres as the Eagle Ford.

The Eagle Ford is a world-class crude oil field which has produced in excess of 3.4 billion barrels of crude oil and condensate. With approximately 516,000 of its 579,000 total net acres in the prolific oil window, EOG continues to be the largest crude oil producer in the Eagle Ford with cumulative gross production in excess of 600 MMBbl of crude oil and condensate. In 2019, EOG completed 321 net Eagle Ford wells and 14 net Austin Chalk wells. EOG continues to evaluate the prospectivity of the Austin Chalk, which overlays EOG's Eagle Ford acreage. EOG has approximately 150 Eagle Ford net wells in its enhanced oil recovery (EOR) gas injection program. The company did not add wells to the EOR program in 2019 and does not expect to add wells in 2020. EOR is a secondary recovery process and the company continues to evaluate the primary development opportunities on its acreage before expanding the EOR program. In 2020, EOG expects to complete approximately 300 net Eagle Ford wells and 6 net Austin Chalk wells while continuing to improve well productivity and operational efficiencies. The combination of exceptional execution and continuous operational improvements have made this play one of the foundations of EOG's portfolio.
In the Delaware Basin, EOG completed 276 net wells during 2019, primarily in the Delaware Basin Wolfcamp, Bone Spring and Leonard plays. EOG also identified additional drilling locations in the Wolfcamp M and Third Bone Spring formations, expanding its inventory of future drilling locations across its approximately 389,000 total net acre position. The Delaware Basin consists of approximately 4,800 feet of stacked pay potential across multiple zones, offering EOG co-development opportunities across its acreage position.
In the Delaware Basin Wolfcamp play, where it has approximately 346,000 net acres, EOG completed 201 net wells in 2019. EOG continued its development plan with well spacing as close as 500 feet in the crude oil portion and 880 feet in the combination crude oil and natural gas portion. Results in the Delaware Basin Wolfcamp program were supported by optimized well spacing, the application of enhanced well completions, precision drilling and continued cost reductions. The Delaware Basin Wolfcamp play will continue to be a primary area of focus in 2020.
In the Third Bone Spring play, EOG completed 13 net wells in 2019 on its 200,000 net prospective acres. With multiple targets and ample co-development opportunities, the Third Bone Spring play is expected to be a large portion of EOG’s future development program. In the Second Bone Spring play, EOG holds approximately 289,000 net acres and completed 34 net wells in 2019. EOG also continued development in the First Bone Spring play where EOG has approximately 100,000 net acres and completed nine net wells in 2019. Both the First and Second Bone Spring plays continue to be an integral part of EOG’s Delaware Basin portfolio.
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In the Leonard play, EOG has approximately 160,000 net acres and continued development with 19 net wells completed in 2019.
Activity in 2020 will continue to be focused in the Delaware Basin Wolfcamp, Third Bone Spring, Second Bone Spring, First Bone Spring and Leonard plays, where EOG expects to complete approximately 350 net wells.
Activity in the Rocky Mountain area was consistent in 2019 with a focus on the Wyoming Powder River Basin. In the Powder River Basin, EOG operated a two-rig program and completed 32 net wells in the Niobrara, Mowry, Turner and Parkman formations. The focus in 2019 was to delineate the Mowry and Niobrara plays and to begin adding infrastructure. Drilling activity and infrastructure buildout will increase significantly in 2020 as activity shifts to development drilling. The infrastructure added will lower operating costs and increase price realizations going forward. In the Wyoming DJ Basin, EOG operated one rig and completed 44 net wells in 2019 in both the Codell and the Niobrara formations. Activity in the DJ Basin is expected to be moderate in 2020 as activity shifts to the Powder River Basin. In the Williston Basin, EOG completed 20 net wells in the Bakken and Three Forks. On average, well performance in the Williston Basin greatly improved due to better targeting and completion techniques. The seasonal program of completing wells mostly in the summer while drilling throughout the year will continue in 2020, although activity will be at a slightly lower pace than 2019. EOG currently holds approximately 1.3 million net acres in the Rocky Mountain area.
In the Mid-Continent area, EOG continued its development of the Woodford Oil Window play with 30 net wells completed during 2019. EOG holds 41,700 net acres in the play and plans to build on its results in the Woodford Oil Window with 20 net well completions in 2020. In 2019, EOG completed 11 gross (two net) wells in the Western Anadarko Basin Marmaton Sand.
Net production for the Marcellus Shale in 2019 averaged approximately 68.3 MMcfd of natural gas. At December 31, 2019, EOG held approximately 151,000 net acres in the Marcellus Shale.
Fort Worth Basin Barnett Shale production averaged 1.7 MBbld of crude oil and condensate, 12.2 MBbld of NGLs and 67.4 MMcfd of natural gas in 2019.
In the South Texas area, EOG completed 15 net wells in 2019. Exploration and evaluation efforts will continue in this region in 2020, where we expect to drill and complete another 15 net wells.
At December 31, 2019, EOG held approximately 2.3 million net undeveloped acres in the United States.
During 2019, EOG continued to operate gathering and processing facilities in the Eagle Ford in South Texas, the Williston Basin Bakken and Three Forks plays in North Dakota, the Fort Worth Basin Barnett Shale and the Permian Basin in West Texas and New Mexico. At December 31, 2019, EOG-owned natural gas processing capacity in the Eagle Ford and the Fort Worth Basin Barnett Shale totaled 325 MMcfd and 180 MMcfd, respectively.
Operations Outside the United States
EOG has operations offshore Trinidad, in the China Sichuan Basin and in Canada and is evaluating additional exploration, development and exploitation opportunities in these and other select international areas.
Trinidad. EOG, through several of its subsidiaries, including EOG Resources Trinidad Limited,

• | holds an 80% working interest in the exploration and production license covering the South East Coast Consortium (SECC) Block offshore Trinidad, except in the Deep Ibis area in which EOG's working interest decreased as a result of a third-party farm-out agreement;

• | holds an 80% working interest in the exploration and production license covering the Pelican Field and its related facilities;

• | holds a 50% working interest in the exploration and production licenses covering the Sercan Area offshore Trinidad;

• | holds a 100% working interest in a production sharing contract with the Government of Trinidad and Tobago for each of the Modified U(a) Block, Modified U(b) Block and Block 4(a);

• | holds a 50% working interest in the exploration and production license covering the Banyan Field;

• | holds a 50% working interest in the exploration and production license covering the Ska, Mento, Reggae Area deep Teak, deep Saaman and deep Poui offshore Trinidad (collectively SMR Area);

• | owns a 12% equity interest in an anhydrous ammonia plant in Point Lisas, Trinidad, that is owned and operated by Caribbean Nitrogen Company Limited; and

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• | owns a 10% equity interest in an anhydrous ammonia plant in Point Lisas, Trinidad, that is owned and operated by Nitrogen (2000) Unlimited.

Several fields in the SECC Block, Modified U(a) Block, Modified U(b) Block, Block 4(a), the Banyan Field and the Sercan Area have been developed and are producing natural gas and crude oil and condensate. Natural gas from EOG's Trinidad operations currently is sold under various contracts with the National Gas Company of Trinidad and Tobago Limited and its subsidiary (NGC). Crude oil and condensate from EOG's Trinidad operations currently is sold under various contracts to Heritage Petroleum Company Limited (Heritage).
In 2019, EOG's net production from Trinidad averaged approximately 260 MMcfd of natural gas and approximately 0.6 MBbld of crude oil and condensate. In 2019, EOG drilled and completed two net wells in Trinidad and was in the process of drilling another exploratory well at December 31, 2019. One of these wells was a successful development well, while the other well was determined to be an unsuccessful exploratory well. In addition, EOG drilled one stratigraphic exploratory well in Trinidad, which discovered commercially economic reserves. At December 31, 2019, EOG held approximately 115,000 net undeveloped acres in Trinidad.
In 2020, EOG expects to drill and complete three net wells in Trinidad. All of the natural gas produced from EOG's Trinidad operations in 2020 is expected to be sold to NGC. All crude oil and condensate produced from EOG's Trinidad operations in 2020 is expected to be sold to Heritage.
China. In July 2008, EOG acquired rights from ConocoPhillips in a Petroleum Contract covering the Chuan Zhong Block exploration area in the Sichuan Basin, Sichuan Province, China. In October 2008, EOG obtained the rights to shallower zones on the acquired acerage.
In 2019, EOG drilled two natural gas wells to complete the drilling program started in 2018. In 2019, EOG also completed two natural gas wells that were drilled during the 2018 drilling program. All natural gas produced from the Baijaochang Field is sold under a long-term contract to PetroChina. In 2019, production averaged approximately 30 MMcfd of natural gas, net, in China.
EOG plans to continue to complete the remaining drilled uncompleted wells (DUCs) in the future as pipeline capacity allows.
Marketing
In 2019, EOG continued its diversified approach to marketing its wellhead crude oil and condensate production. The majority of production was transported by pipeline to downstream markets with the remainder sold into local markets. Major U.S. sales areas accessed by EOG were various locations along the U.S. Gulf coast, including Houston and Corpus Christi, Texas and Louisiana; Cushing, Oklahoma; the Permian Basin and the Midwest. In late 2019, EOG also sold crude oil at the Houston Ship Channel (HSC) for export to foreign destinations. In each case, the price received was based on market prices at that specific sales point or based on the price index applicable for that location. In 2020, the pricing mechanism for such production is expected to remain the same. In 2020, EOG expects to sell crude oil at the Port of Corpus Christi for export, in addition to sales at the HSC. At December 31, 2019, EOG was committed to deliver to multiple parties fixed quantities of crude oil of 28 MMBbls in 2020 and 2 MMBbls in 2021, all of which is expected to be delivered from future production of available reserves.
In 2019, EOG processed certain of its natural gas production, either at EOG-owned facilities or at third-party facilities, extracting NGLs. NGLs were sold at prevailing market prices, into either local markets or downstream locations. In certain instances, EOG exchanged its NGL production for purity products received downstrean, which were sold at prevailing market prices. In 2020, such pricing mechanisms are expected to remain the same.
In 2019, consistent with its diversified marketing strategy, the majority of EOG's United States wellhead natural gas production was transported by pipeline to various locations, including Katy, Texas; East Texas; the Agua Dulce Hub in South Texas; the Cheyenne Hub in Weld County, Colorado; Southern California; and Chicago, Illinois. Remaining natural gas production was sold into local markets. In each case, pricing was based on the spot market price at the ultimate sales point. In 2020, the pricing mechanism for such production is expected to remain the same. Additionally in 2019, EOG entered into an agreement, beginning in 2020, to sell natural gas to an LNG liquefaction facility near Corpus Christi, Texas and receive pricing based on the Platts Japan Korea Marker. At December 31, 2019, EOG was committed to deliver to multiple parties fixed quantities of natural gas of 159 Bcf in 2020, 108 Bcf in 2021, 82 Bcf in 2022, 82 Bcf in 2023, 31 Bcf in 2024 and 1,685 Bcf thereafter, all of which is expected to be delivered from future production of available reserves.
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In 2019, a majority of the wellhead natural gas volumes from Trinidad were sold under contracts with prices which were either wholly or partially dependent on Caribbean ammonia index prices and/or methanol prices. The remaining volumes were sold under a contract at prices partially dependent on United States Henry Hub market prices and under a fixed price contract. The pricing mechanisms for these contracts in Trinidad are expected to remain the same in 2020; however, we anticipate the majority of volumes will be sold under a fixed price contract.
In 2019, all wellhead natural gas volumes from China were sold at regulated prices based on the purchaser's pipeline sales volumes to various local market segments. The pricing mechanism for production in China is expected to remain the same in 2020.
In certain instances, EOG purchases and sells third-party crude oil and natural gas in order to balance firm transportation capacity with production in certain areas and to utilize excess capacity at EOG-owned facilities.
During 2019, two purchasers each accounted for more than 10% of EOG's total wellhead crude oil and condensate, NGLs and natural gas revenues and gathering, processing and marketing revenues. The two purchasers are in the crude oil refining industry. EOG does not believe that the loss of any single purchaser would have a material adverse effect on its financial condition or results of operations.
Wellhead Volumes and Prices
The following table sets forth certain information regarding EOG's wellhead volumes of, and average prices for, crude oil and condensate, NGLs and natural gas. The table also presents crude oil equivalent volumes which are determined using a ratio of 1.0 barrel of crude oil and condensate or NGLs to 6.0 Mcf of natural gas for each of the years ended December 31, 2019, 2018 and 2017. See ITEM 7, Management's Discussion and Analysis of Financial Condition and Results of Operations - Results of Operations, for wellhead volumes on a per-day basis.
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Year Ended December 31 | 2019 |  | 2018 |  | 2017
Crude Oil and Condensate Volumes (MMBbl) (1) |  |  |  |  |
United States: |  |  |  |  |
Eagle Ford | 68.3 |  |  | 62.4 |  |  | 57.4 |
Delaware Basin | 63.4 |  |  | 46.3 |  |  | 31.6 |
Other | 34.6 |  |  | 35.4 |  |  | 33.2 |
United States | 166.3 |  |  | 144.1 |  |  | 122.2 |
Trinidad | 0.2 |  |  | 0.3 |  |  | 0.3 |
Other International (2) | 0.1 |  |  | 1.6 |  |  | 0.2 |
Total | 166.6 |  |  | 146.0 |  |  | 122.7 |
Natural Gas Liquids Volumes (MMBbl) (1) |  |  |  |  |  |  |
United States: |  |  |  |  |  |  |
Eagle Ford | 10.7 |  |  | 11.4 |  |  | 9.4 |
Delaware Basin | 23.5 |  |  | 15.8 |  |  | 8.8 |
Other | 14.7 |  |  | 15.3 |  |  | 14.1 |
United States | 48.9 |  |  | 42.5 |  |  | 32.3 |
Other International (2) | — |  |  | — |  |  | — |
Total | 48.9 |  |  | 42.5 |  |  | 32.3 |
Natural Gas Volumes (Bcf) (1) |  |  |  |  |  |  |
United States: |  |  |  |  |  |
Eagle Ford | 53 |  |  | 58 |  |  | 55 |
Delaware Basin | 147 |  |  | 110 |  |  | 81 |
Other | 190 |  |  | 169 |  |  | 143 |
United States | 390 |  |  | 337 |  |  | 279 |
Trinidad | 95 |  |  | 97 |  |  | 114 |
Other International (2) | 14 |  |  | 11 |  |  | 9 |
Total | 499 |  |  | 445 |  |  | 402 |
Crude Oil Equivalent Volumes (MMBoe) (3) |  |  |  |  |  |  |
United States: |  |  |  |  |  |  |
Eagle Ford | 87.8 |  |  | 83.5 |  |  | 76.0 |
Delaware Basin | 111.4 |  |  | 80.3 |  |  | 53.9 |
Other | 81.0 |  |  | 78.8 |  |  | 71.2 |
United States | 280.2 |  |  | 242.6 |  |  | 201.1 |
Trinidad | 16.0 |  |  | 16.5 |  |  | 19.4 |
Other International (2) | 2.4 |  |  | 3.4 |  |  | 1.8 |
Total | 298.6 |  |  | 262.5 |  |  | 222.3 |

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Year Ended December 31 | 2019 |  | 2018 |  | 2017
Average Crude Oil and Condensate Prices ($/Bbl) (4) |  |  |  |  |
United States | $ | 57.74 |  |  | $ | 65.16 |  |  | $ | 50.91 |
Trinidad | 47.16 |  |  | 57.26 |  |  | 42.30 |
Other International (2) | 57.40 |  |  | 71.45 |  |  | 57.20 |
Composite | 57.72 |  |  | 65.21 |  |  | 50.91 |
Average Natural Gas Liquids Prices ($/Bbl) (4) |  |  |  |  |
United States | $ | 16.03 |  |  | $ | 26.60 |  |  | $ | 22.61 |
Other International (2) | — |  |  | — |  |  | — |
Composite | 16.03 |  |  | 26.60 |  |  | 22.61 |
Average Natural Gas Prices ($/Mcf) (4) |  |  |  |  |
United States | $ | 2.22 |  |  | $ | 2.88 |  |  | $ | 2.20 |
Trinidad | 2.72 |  |  | 2.94 |  |  | 2.38 |
Other International (2) | 4.44 |  |  | 4.08 |  |  | 3.89 |
Composite | 2.38 |  |  | 2.92 |  | (5) | 2.29 |

(1) | Million barrels or billion cubic feet, as applicable.

(2) | Other International includes EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

(3) | Million barrels of oil equivalent; includes crude oil and condensate, NGLs and natural gas.

(4) | Dollars per barrel or per thousand cubic feet, as applicable. Excludes the impact of financial commodity derivative instruments (see Note 12 to Consolidated Financial Statements).

(5) | Includes a positive revenue adjustment of $0.44 per Mcf related to the adoption of Accounting Standards Update (ASU) 2014-09, "Revenue From Contracts with Customers" (ASU 2014-09) (see Note 1 to the Consolidated Financial Statements). In connection with the adoption of ASU 2014-09, EOG presents natural gas processing fees related to certain processing and marketing agreements as Gathering and Processing Costs, instead of as a deduction to Natural Gas revenues.

Competition
EOG competes with major integrated oil and gas companies, government-affiliated oil and gas companies and other independent oil and gas companies for the acquisition of licenses and leases, properties and reserves and access to the facilities, equipment, materials, services, and employees and other contract personnel (including geologists, geophysicists, engineers and other specialists) required to explore for, develop, produce, market and transport crude oil and natural gas. Certain of EOG's competitors have financial and other resources substantially greater than those EOG possesses and have established strategic long-term positions or strong governmental relationships in countries or areas in which EOG may seek new or expanded entry. As a consequence, EOG may be at a competitive disadvantage in certain respects, such as in bidding for drilling rights or in accessing necessary services, facilities, equipment, materials and personnel. In addition, EOG's larger competitors may have a competitive advantage when responding to factors that affect demand for crude oil and natural gas, such as changing worldwide prices and levels of production and the cost and availability of alternative fuels. EOG also faces competition, to a lesser extent, from competing energy sources, such as alternative energy sources.
Regulation
United States Regulation of Crude Oil and Natural Gas Production. Crude oil and natural gas production operations are subject to various types of regulation, including regulation by federal and state agencies.
United States legislation affecting the oil and gas industry is under constant review for amendment or expansion. In addition, numerous departments and agencies, both federal and state, are authorized by statute to issue, and have issued, rules and regulations applicable to the oil and gas industry. Such rules and regulations, among other things, require permits for the drilling of wells, regulate the spacing of wells, prevent the waste of natural gas through restrictions on flaring, require surety bonds for various exploration and production operations and regulate the calculation and disbursement of royalty payments (for federal and state leases), production taxes and ad valorem taxes.
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A portion of EOG's oil and gas leases in New Mexico, North Dakota, Utah, Wyoming and the Gulf of Mexico, as well as in other areas, are granted by the federal government and administered by the Bureau of Land Management (BLM) and/or the Bureau of Indian Affairs (BIA) or, in the case of offshore leases (which, for EOG, are de minimis), by the Bureau of Ocean Energy Management (BOEM) and the Bureau of Safety and Environmental Enforcement (BSEE), all federal agencies. Operations conducted by EOG on federal oil and gas leases must comply with numerous additional statutory and regulatory restrictions and, in the case of leases relating to tribal lands, certain tribal environmental and permitting requirements and employment rights regulations. In addition, the U.S. Department of the Interior (via various of its agencies, including the BLM, the BIA and the Office of Natural Resources Revenue) has certain authority over our calculation and payment of royalties, bonuses, fines, penalties, assessments and other revenues related to our federal and tribal oil and gas leases.
BLM, BIA and BOEM leases contain relatively standardized terms requiring compliance with detailed regulations and, in the case of offshore leases, orders pursuant to the Outer Continental Shelf Lands Act (which are subject to change by the BOEM or BSEE). Under certain circumstances, the BLM, BIA, BOEM or BSEE (as applicable) may require operations on federal leases to be suspended or terminated. Any such suspension or termination could materially and adversely affect EOG's interests.
The transportation and sale for resale of natural gas in interstate commerce are regulated pursuant to the Natural Gas Act of 1938, as amended (NGA), and the Natural Gas Policy Act of 1978. These statutes are administered by the Federal Energy Regulatory Commission (FERC). Effective January 1993, the Natural Gas Wellhead Decontrol Act of 1989 deregulated natural gas prices for all "first sales" of natural gas, which includes all sales by EOG of its own production. All other sales of natural gas by EOG, such as those of natural gas purchased from third parties, remain jurisdictional sales subject to a blanket sales certificate under the NGA, which has flexible terms and conditions. Consequently, all of EOG's sales of natural gas currently may be made at market prices, subject to applicable contract provisions. EOG's jurisdictional sales, however, may be subject in the future to greater federal oversight, including the possibility that the FERC might prospectively impose more restrictive conditions on such sales. Conversely, sales of crude oil and condensate and NGLs by EOG are made at unregulated market prices.
EOG owns certain gathering and/or processing facilities in the Permian Basin in West Texas and New Mexico, the Barnett Shale in North Texas, the Bakken and Three Forks plays in North Dakota, and the Eagle Ford in South Texas. State regulation of gathering and processing facilities generally includes various safety, environmental and, in some circumstances, nondiscrimination requirements with respect to the provision of gathering and processing services, but does not generally entail rate regulation. EOG's gathering and processing operations could be materially and adversely affected should they be subject in the future to the application of state or federal regulation of rates and services.
EOG's gathering and processing operations also may be, or become, subject to safety and operational regulations relating to the design, installation, testing, construction, operation, replacement and management of such facilities. Additional rules and legislation pertaining to these matters are considered and/or adopted from time to time. Although EOG cannot predict what effect, if any, such legislation might have on its operations and financial condition, EOG could be required to incur additional capital expenditures and increased compliance and operating costs depending on the nature and extent of such future legislative and regulatory changes.
EOG also owns crude oil rail loading facilities in North Dakota and crude oil truck unloading facilities in certain of its U.S. plays. Regulation of such facilities is conducted at the state and federal levels and generally includes various safety, environmental, permitting and packaging/labeling requirements. Additional regulation pertaining to these matters is considered and/or adopted from time to time. Although EOG cannot predict what effect, if any, any such new regulations might have on its crude-by-rail assets and the transportation of its crude oil production by truck, EOG could be required to incur additional capital expenditures and increased compliance and operating costs depending on the nature and extent of such future regulatory changes. EOG did not transport any crude oil by rail during 2019.
Proposals and proceedings that might affect the oil and gas industry are considered from time to time by Congress, the state legislatures, the FERC and other federal, state and local regulatory commissions, agencies, councils and courts. EOG cannot predict when or whether any such proposals or proceedings may become effective. It should also be noted that the oil and gas industry historically has been very heavily regulated; therefore, there is no assurance that the approach currently being followed by such legislative bodies and regulatory commissions, agencies, councils and courts will remain unchanged.
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Environmental Regulation Generally - United States. EOG is subject to various federal, state and local laws and regulations covering the discharge of materials into the environment or otherwise relating to the protection of the environment. These laws and regulations affect EOG's operations and costs as a result of their effect on crude oil and natural gas exploration, development and production operations. Failure to comply with these laws and regulations may result in the assessment of administrative, civil and criminal penalties, including the assessment of monetary penalties, the imposition of investigatory and remedial obligations, the suspension or revocation of necessary permits, licenses and authorizations, the requirement that additional pollution controls be installed and the issuance of orders enjoining future operations or imposing additional compliance requirements.
In addition, EOG has acquired certain oil and gas properties from third parties whose actions with respect to the management and disposal or release of hydrocarbons or other wastes were not under EOG's control. Under environmental laws and regulations, EOG could be required to remove or remediate wastes disposed of or released by prior owners or operators. EOG also could incur costs related to the clean-up of third-party sites to which it sent regulated substances for disposal or to which it sent equipment for cleaning, and for damages to natural resources or other claims related to releases of regulated substances at such third-party sites. In addition, EOG could be responsible under environmental laws and regulations for oil and gas properties in which EOG previously owned or currently owns an interest, but was or is not the operator. Moreover, EOG is subject to the U.S. Environmental Protection Agency's (U.S. EPA) rule requiring annual reporting of greenhouse gas (GHG) emissions and, as discussed further below, is also subject to federal, state and local laws and regulations regarding hydraulic fracturing and other aspects of our operations.
Compliance with environmental laws and regulations increases EOG's overall cost of business, but has not had, to date, a material adverse effect on EOG's operations, financial condition or results of operations. In addition, it is not anticipated, based on current laws and regulations, that EOG will be required in the near future to expend amounts (whether for environmental control facilities or otherwise) that are material in relation to its total exploration and development expenditure program in order to comply with such laws and regulations. However, given that such laws and regulations are subject to change, EOG is unable to predict the ultimate cost of compliance or the ultimate effect on EOG's operations, financial condition and results of operations.
Climate Change - United States. Local, state, federal and international regulatory bodies have been increasingly focused on GHG emissions and climate change issues in recent years. In addition to the U.S. EPA's rule requiring annual reporting of GHG emissions, the U.S. EPA has adopted regulations for certain large sources regulating GHG emissions as pollutants under the federal Clean Air Act. Further, the U.S. EPA, in May 2016, issued regulations that require operators to reduce methane emissions and emissions of volatile organic compounds (VOC) from new, modified and reconstructed crude oil and natural gas wells and equipment located at natural gas production gathering and booster stations, gas processing plants and natural gas transmission compressor stations.
At the international level, the U.S., in December 2015, participated in the 21st Conference of the Parties of the United Nations Framework Convention on Climate Change in Paris, France. The Paris Agreement (adopted at the conference) calls for nations to undertake efforts with respect to global temperatures and GHG emissions. The Paris Agreement went into effect on November 4, 2016. However, the U.S. has begun the process to withdraw from the Paris Agreement. In response, many state and local officials have stated their intent to intensify efforts to uphold the commitments set forth in the international accord.
EOG believes that its strategy to reduce GHG emissions throughout its operations is both in the best interest of the environment and a prudent business practice. EOG has developed a system that is utilized in calculating GHG emissions from its operating facilities. This emissions management system calculates emissions based on recognized regulatory methodologies, where applicable, and on commonly accepted engineering practices. EOG reports GHG emissions for facilities covered under the U.S. EPA's Mandatory Reporting of Greenhouse Gases Rule published in 2009, as amended.
EOG is unable to predict the timing, scope and effect of any currently proposed or future investigations, laws, regulations or treaties regarding climate change and GHG emissions, but the direct and indirect costs of such investigations, laws, regulations and treaties (if enacted) could materially and adversely affect EOG's operations, financial condition and results of operations. Further, the increasing attention to global climate change risks has created the potential for a greater likelihood of governmental investigations and private and public litigation, which could increase our costs or otherwise adversely affect our business.
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Regulation of Hydraulic Fracturing and Other Operations - United States. Substantially all of the onshore crude oil and natural gas wells drilled by EOG are completed and stimulated through the use of hydraulic fracturing. Hydraulic fracturing technology, which has been used by the oil and gas industry for more than 60 years and is constantly being enhanced, enables EOG to produce crude oil and natural gas that otherwise would not be recovered. Specifically, hydraulic fracturing is a process in which pressurized fluid is pumped into underground formations to create tiny fractures or spaces that allow crude oil and natural gas to flow from the reservoir into the well so that it can be brought to the surface. Hydraulic fracturing generally takes place thousands of feet underground, a considerable distance below any drinking water aquifers, and there are impermeable layers of rock between the area fractured and the water aquifers. The makeup of the fluid used in the hydraulic fracturing process typically includes water and sand, and less than 1% of highly diluted chemical additives; lists of the chemical additives used in fracturing fluids are available to the public via internet websites and in other publications sponsored by industry trade associations and through state agencies in those states that require the reporting of the components of fracturing fluids. While the majority of the sand remains underground to hold open the fractures, a significant amount of the water and chemical additives flow back and are then either reused or safely disposed of at sites that are approved and permitted by the appropriate regulatory authorities. EOG periodically conducts regulatory assessments of these disposal facilities to monitor compliance with applicable regulations.
The regulation of hydraulic fracturing is primarily conducted at the state and local level through permitting and other compliance requirements. In April 2012, however, the U.S. EPA issued regulations specifically applicable to the oil and gas industry that require operators to significantly reduce VOC emissions from natural gas wells that are hydraulically fractured through the use of "green completions" to capture natural gas that would otherwise escape into the air. The U.S. EPA has also issued regulations that establish standards for VOC emissions from several types of equipment, including storage tanks, compressors, dehydrators, and valves and sweetening units at gas processing plants. In addition, in May 2016, the U.S. EPA issued regulations that require operators to reduce methane and VOC emissions from new, modified and reconstructed crude oil and natural gas wells and equipment located at natural gas production gathering and booster stations, gas processing plants and natural gas transmission compressor stations.
Also, in November 2016, the BLM issued a final rule that limits venting, flaring and leaking of natural gas from oil and gas wells and equipment on federal and Indian lands, though, in September 2018, the BLM issued a final rule rescinding certain requirements of that rule. There have been various other proposals to regulate hydraulic fracturing at the federal level. In addition, there have been proposals and positions taken by candidates for elected office and others regarding additional restrictions on, or the complete prohibition of, hydraulic fracturing operations.
In addition to the above-described federal regulations, some state and local governments have imposed, or have considered imposing, various conditions and restrictions on drilling and completion operations, including requirements regarding casing and cementing of wells; testing of nearby water wells; restrictions on access to, and usage of, water; disclosure of the chemical additives used in hydraulic fracturing operations; restrictions on the type of chemical additives that may be used in hydraulic fracturing operations; and restrictions on drilling or injection activities on certain lands lying within wilderness wetlands, ecologically or seismically sensitive areas, and other protected areas. Such federal, state and local permitting and disclosure requirements, operating restrictions, conditions or prohibition could lead to operational delays and increased operating and compliance costs and, moreover, could delay or effectively prevent the development of crude oil and natural gas from formations which would not be economically viable without the use of hydraulic fracturing.
Compliance with laws and regulations relating to hydraulic fracturing and other aspects of our operations increases EOG's overall cost of business, but has not had, to date, a material adverse effect on EOG's operations, financial condition or results of operations. In addition, it is not anticipated, based on current laws and regulations, that EOG will be required in the near future to expend amounts that are material in relation to its total exploration and development expenditure program in order to comply with such laws and regulations. However, EOG is unable to predict (i) the timing, scope and effect of any currently proposed or future laws or regulations regarding hydraulic fracturing in the United States or other aspects of our operations and (ii) the ultimate cost of compliance or the ultimate effect on EOG's operations, financial condition and results of operations relating to such future laws and regulations. The direct and indirect costs of such laws and regulations (if enacted) could materially and adversely affect EOG's operations, financial condition and results of operations.
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Other International Regulation. EOG's exploration and production operations outside the United States are subject to various types of regulations, including environmental regulations, imposed by the respective governments of the countries in which EOG's operations are conducted, and may affect EOG's operations and costs of compliance within those countries. EOG currently has operations in Trinidad, China and Canada. EOG is unable to predict the timing, scope and effect of any currently proposed or future laws, regulations or treaties, including those regarding climate change and hydraulic fracturing, but the direct and indirect costs of such laws, regulations and treaties (if enacted) could materially and adversely affect EOG's operations, financial condition and results of operations. EOG will continue to review the risks to its business and operations outside the United States associated with all environmental matters, including climate change and hydraulic fracturing regulation. In addition, EOG will continue to monitor and assess any new policies, legislation, regulations and treaties in the areas outside the United States where it operates to determine the impact on its operations and take appropriate actions, where necessary.
Other Regulation. EOG has sand mining and processing operations in Texas and Wisconsin, which support EOG's exploration and development operations. EOG's sand mining operations are subject to regulation by the federal Mine Safety and Health Administration (in respect of safety and health matters) and by state agencies (in respect of air permitting and other environmental matters). The information concerning mine safety violations and other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K (17 CFR 229.104) is included in Exhibit 95 to this report.
Other Matters
Energy Prices. EOG is a crude oil and natural gas producer and is impacted by changes in the prices for crude oil and condensate, NGLs and natural gas. Average crude oil and condensate prices received by EOG for production in the United States decreased 11% in 2019, and increased 28% in 2018 and 22% in 2017, each as compared to the immediately preceding year. Average NGL prices received by EOG for production in the United States decreased 40% in 2019, and increased 18% in 2018 and 55% in 2017, each as compared to the immediately preceding year. During the last three years, average United States wellhead natural gas prices have fluctuated, at times rather dramatically. These fluctuations resulted in a 23% decrease in the average wellhead natural gas price received by EOG for production in the United States in 2019, a 31% increase (inclusive of a positive revenue adjustment of $0.44 per Mcf related to the adoption of ASU 2014-09) in 2018 and a 38% increase in 2017, each as compared to the immediately preceding year.
Due to the many uncertainties associated with the world political and economic environment (for example, the actions of other crude oil exporting nations, including the Organization of Petroleum Exporting Countries), the global supply of, and demand for, crude oil, NGLs and natural gas and the availability of other energy supplies, the relative competitive relationships of the various energy sources in the view of consumers and other factors, EOG is unable to predict what changes may occur in the prices of crude oil and condensate, NGLs and natural gas in the future. For additional discussion regarding changes in crude oil and condensate, NGLs and natural gas prices and the risks that such changes may present to EOG, see ITEM 1A, Risk Factors.
Based on EOG's tax position, EOG's price sensitivity (exclusive of basis swaps) in 2020 for each $1.00 per barrel increase or decrease in wellhead crude oil and condensate price, combined with the estimated change in NGL price, is approximately $117 million for net income and $152 million for pretax cash flows from operating activities. Based on EOG's tax position and the portion of EOG's anticipated natural gas volumes for 2020 for which prices have not been determined under long-term marketing contracts, EOG's price sensitivity for each $0.10 per Mcf increase or decrease in wellhead natural gas price is approximately $31 million for net income and $40 million for pretax cash flows from operating activities. For a summary of EOG's financial commodity derivative contracts through February 19, 2020, see ITEM 7, Management's Discussion and Analysis of Financial Condition and Results of Operations - Capital Resources and Liquidity - Derivative Transactions. For a summary of EOG's financial commodity derivative contracts for the twelve months ended December 31, 2019, see Note 12 to Consolidated Financial Statements.
Risk Management. EOG engages in price risk management activities from time to time. These activities are intended to manage EOG's exposure to fluctuations in prices of crude oil, NGLs and natural gas. EOG utilizes financial commodity derivative instruments, primarily price swap, option, swaption, collar and basis swap contracts, as a means to manage this price risk. See Note 12 to Consolidated Financial Statements. For a summary of EOG's financial commodity derivative contracts through February 19, 2020, see ITEM 7, Management's Discussion and Analysis of Financial Condition and Results of Operations ‑ Capital Resources and Liquidity - Derivative Transactions.
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All of EOG's crude oil, NGL and natural gas activities are subject to the risks normally incident to the exploration for, and development, production and transportation of, crude oil, NGL and natural gas, including rig and well explosions, cratering, fires, loss of well control and leaks and spills, each of which could result in damage to life, property and/or the environment. EOG's operations are also subject to certain perils, including hurricanes, flooding and other adverse weather events. Moreover, EOG's activities are subject to governmental regulations as well as interruption or termination by governmental authorities based on environmental and other considerations. Losses and liabilities arising from such events could reduce EOG's revenues and increase costs to EOG to the extent not covered by insurance.
Insurance is maintained by EOG against some, but not all, of these risks in accordance with what EOG believes are customary industry practices and in amounts and at costs that EOG believes to be prudent and commercially practicable. Specifically, EOG maintains commercial general liability and excess liability coverage provided by third-party insurers for bodily injury or death claims resulting from an incident involving EOG's operations (subject to policy terms and conditions). Moreover, in the event an incident involving EOG's operations results in negative environmental effects, EOG maintains operators extra expense coverage provided by third-party insurers for obligations, expenses or claims that EOG may incur from such an incident, including obligations, expenses or claims in respect of seepage and pollution, cleanup and containment, evacuation expenses and control of the well (subject to policy terms and conditions). In the event of a well control incident resulting in negative environmental effects, such operators extra expense coverage would be EOG's primary coverage, with the commercial general liability and excess liability coverage referenced above also providing certain coverage to EOG. All of EOG's drilling activities are conducted on a contractual basis with independent drilling contractors and other third-party service contractors. The indemnification and other risk allocation provisions included in such contracts are negotiated on a contract-by-contract basis and are each based on the particular circumstances of the services being provided and the anticipated operations.
In addition to the above-described risks, EOG's operations outside the United States are subject to certain risks, including the risk of increases in taxes and governmental royalties, changes in laws and policies governing the operations of foreign-based companies, expropriation of assets, unilateral or forced renegotiation, modification or nullification of existing contracts with governmental entities, currency restrictions and exchange rate fluctuations. Please refer to ITEM 1A, Risk Factors, for further discussion of the risks to which EOG is subject with respect to its operations outside the United States.
Information About Our Executive Officers
The current executive officers of EOG and their names and ages (as of February 27, 2020) are as follows:

Name |  | Age |  | Position
William R. Thomas |  | 67 |  | Chairman of the Board and Chief Executive Officer
Lloyd W. Helms, Jr. |  | 62 |  | Chief Operating Officer
Kenneth W. Boedeker |  | 57 |  | Executive Vice President, Exploration and Production
Ezra Y. Yacob |  | 43 |  | Executive Vice President, Exploration and Production
Timothy K. Driggers |  | 58 |  | Executive Vice President and Chief Financial Officer
Michael P. Donaldson |  | 57 |  | Executive Vice President, General Counsel and Corporate Secretary

William R. Thomas was elected Chairman of the Board and Chief Executive Officer effective January 2014. He was elected Senior Vice President and General Manager of EOG's Fort Worth, Texas, office in June 2004, Executive Vice President and General Manager of EOG's Fort Worth, Texas, office in February 2007 and Senior Executive Vice President, Exploitation in February 2011. He subsequently served as Senior Executive Vice President, Exploration from July 2011 to September 2011, as President from September 2011 to July 2013 and as President and Chief Executive Officer from July 2013 to December 2013. Mr. Thomas joined a predecessor of EOG in January 1979. Mr. Thomas is EOG's principal executive officer.
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Lloyd W. Helms, Jr. was elected Chief Operating Officer in December 2017. Prior to that, he served as Executive Vice President, Exploration and Production from August 2013 to December 2017. He was elected Vice President, Engineering and Acquisitions in September 2006, Vice President and General Manager of EOG's Calgary, Alberta, Canada office in March 2008, and served as Executive Vice President, Operations from February 2012 to August 2013. Mr. Helms joined a predecessor of EOG in February 1981.
Kenneth W. Boedeker was elected Executive Vice President, Exploration and Production in December 2018. He served as Vice President and General Manager of EOG's Denver, Colorado, office from October 2016 to December 2018, and as Vice President, Engineering and Acquisitions from July 2015 to October 2016. Prior to that, Mr. Boedeker held technical and managerial positions of increasing responsibility across multiple offices and functional areas within EOG. Mr. Boedeker joined EOG in July 1994.
Ezra Y. Yacob was elected Executive Vice President, Exploration and Production in December 2017. He served as Vice President and General Manager of EOG's Midland, Texas, office from May 2014 to December 2017. Prior to that, he served as Manager, Division Exploration in EOG's Fort Worth, Texas, and Midland, Texas, offices from March 2012 to May 2014 as well as in various geoscience and leadership positions. Mr. Yacob joined EOG in August 2005.
Timothy K. Driggers was elected Executive Vice President and Chief Financial Officer in April 2016. Previously, Mr. Driggers served as Vice President and Chief Financial Officer from July 2007 to April 2016. He was elected Vice President and Controller of EOG in October 1999, was subsequently named Vice President, Accounting and Land Administration in October 2000 and Vice President and Chief Accounting Officer in August 2003. Mr. Driggers is EOG's principal financial officer. Mr. Driggers joined a predecessor of EOG in August 1995.
Michael P. Donaldson was elected Executive Vice President, General Counsel and Corporate Secretary in April 2016. Previously, Mr. Donaldson served as Vice President, General Counsel and Corporate Secretary from May 2012 to April 2016. He was elected Corporate Secretary in May 2008, and was appointed Deputy General Counsel and Corporate Secretary in July 2010. Mr. Donaldson joined EOG in September 2007.
ITEM 1A. Risk Factors
Our business and operations are subject to many risks. The risks described below may not be the only risks we face, as our business and operations may also be subject to risks that we do not yet know of, or that we currently believe are immaterial. If any of the events or circumstances described below actually occurs, our business, financial condition, results of operations or cash flows could be materially and adversely affected and the trading price of our common stock could decline. The following risk factors should be read in conjunction with the other information contained herein, including the consolidated financial statements and the related notes. Unless the context requires otherwise, "we," "us," "our" and "EOG" refer to EOG Resources, Inc. and its subsidiaries.
Crude oil, natural gas and NGL prices are volatile, and a substantial and extended decline in commodity prices can have a material and adverse effect on us.
Prices for crude oil and natural gas (including prices for natural gas liquids (NGLs) and condensate) fluctuate widely. Among the interrelated factors that can or could cause these price fluctuations are:

• | domestic and worldwide supplies of crude oil, NGLs and natural gas;

• | domestic and international drilling activity;

• | the actions of other crude oil producing and exporting nations, including the Organization of Petroleum Exporting Countries;

• | consumer and industrial/commercial demand for crude oil, natural gas and NGLs;

• | worldwide economic conditions, geopolitical factors and political conditions, including, but not limited to, the imposition of tariffs or trade or other economic sanctions, political instability or armed conflict in oil and gas producing regions;

• | the availability, proximity and capacity of appropriate transportation, gathering, processing, compression, storage and refining facilities;

• | the price and availability of, and demand for, competing energy sources, including alternative energy sources;

• | the effect of worldwide energy conservation measures, alternative fuel requirements and climate change-related initiatives;

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• | the nature and extent of governmental regulation, including environmental and other climate change-related regulation, regulation of derivatives transactions and hedging activities, tax laws and regulations and laws and regulations with respect to the import and export of crude oil, NGLs, and natural gas and related commodities;

• | the level and effect of trading in commodity futures markets, including trading by commodity price speculators and others; and

• | weather conditions and changes in weather patterns.

The above-described factors and the volatility of commodity prices make it difficult to predict future crude oil, natural gas and NGL prices. As a result, there can be no assurance that the prices for crude oil, natural gas and NGLs will sustain, or increase from, their current levels and not decline.
Our cash flows and results of operations depend to a great extent on prevailing commodity prices. Accordingly, substantial and extended declines in commodity prices can materially and adversely affect the amount of cash flows we have available for our capital expenditures and other operating expenses, the terms on which we can access the credit and capital markets and our results of operations.
Lower commodity prices can also reduce the amount of crude oil, natural gas and NGLs that we can produce economically. Substantial and extended declines in the prices of these commodities can render uneconomic a portion of our exploration, development and exploitation projects, resulting in our having to make downward adjustments to our estimated proved reserves and also possibly shut in or plug and abandon certain wells. In addition, significant prolonged decreases in commodity prices may cause the expected future cash flows from our properties to fall below their respective net book values, which will require us to write down the value of our properties. Such reserve write-downs and asset impairments could materially and adversely affect our results of operations and financial position and, in turn, the trading price of our common stock.
If commodity prices decline from current levels for an extended period of time, our financial condition, cash flows and results of operations will be adversely affected and we may be limited in our ability to maintain our current level of dividends on our common stock. In addition, we may be required to incur impairment charges and/or make downward adjustments to our proved reserve estimates. As a result, our financial condition and results of operations and the trading price of our common stock may be adversely affected.
Drilling crude oil and natural gas wells is a high-risk activity and subjects us to a variety of risks that we cannot control.
Drilling crude oil and natural gas wells, including development wells, involves numerous risks, including the risk that we may not encounter commercially productive crude oil and natural gas reserves (including "dry holes"). As a result, we may not recover all or any portion of our investment in new wells.
Specifically, we often are uncertain as to the future cost or timing of drilling, completing and operating wells, and our drilling operations and those of our third-party operators may be curtailed, delayed or canceled, the cost of such operations may increase and/or our results of operations and cash flows from such operations may be impacted, as a result of a variety of factors, including:

• | unexpected drilling conditions;

• | title problems;

• | pressure or irregularities in formations;

• | equipment failures or accidents;

• | adverse weather conditions, such as winter storms, flooding, tropical storms and hurricanes, and changes in weather patterns;

• | compliance with, or changes in, environmental, health and safety laws and regulations relating to air emissions, hydraulic fracturing, access to and use of water, disposal or other discharge (e.g., into injection wells) of produced water, drilling fluids and other wastes, laws and regulations imposing conditions or restrictions on drilling and completion operations and on the transportation of crude oil and natural gas, and other laws and regulations, such as tax laws and regulations;

• | the availability and timely issuance of required federal, state, tribal and other permits and licenses, which may be affected by (among other things) government shutdowns or other suspensions of, or delays in, government services;

• | the availability of, costs associated with and terms of contractual arrangements for properties, including mineral licenses and leases, pipelines, crude oil hauling trucks and qualified drivers and facilities and equipment to gather, process, compress, store, transport and market crude oil, natural gas and related commodities; and

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• | the costs of, or shortages or delays in the availability of, drilling rigs, hydraulic fracturing services, pressure pumping equipment and supplies, tubular materials, water, sand, disposal facilities, qualified personnel and other necessary facilities, equipment, materials, supplies and services.

Our failure to recover our investment in wells, increases in the costs of our drilling operations or those of our third-party operators, and/or curtailments, delays or cancellations of our drilling operations or those of our third-party operators, in each case, due to any of the above factors or other factors, may materially and adversely affect our business, financial condition and results of operations. For related discussion of the risks and potential losses and liabilities inherent in our crude oil and natural gas operations generally, see the immediately following risk factor.
Our crude oil, NGLs and natural gas operations and supporting activities and operations involve many risks and expose us to potential losses and liabilities, and insurance may not fully protect us against these risks and potential losses and liabilities.
Our crude oil, NGLs and natural gas operations and supporting activities and operations are subject to all of the risks associated with exploring and drilling for, and producing, gathering, processing, compressing, storing and transporting, crude oil and natural gas, including the risks of:

• | well blowouts and cratering;

• | loss of well control;

• | crude oil spills, natural gas leaks, formation water (i.e., produced water) spills and pipeline ruptures;

• | pipe failures and casing collapses;

• | uncontrollable flows of crude oil, natural gas, formation water or drilling fluids;

• | releases of chemicals, wastes or pollutants;

• | adverse weather events, such as winter storms, flooding, tropical storms and hurricanes, and other natural disasters;

• | fires and explosions;

• | terrorism, vandalism and physical, electronic and cybersecurity breaches;

• | formations with abnormal or unexpected pressures;

• | leaks or spills in connection with, or associated with, the gathering, processing, compression, storage and transportation of crude oil, NGLs and natural gas; and

• | malfunctions of, or damage to, gathering, processing, compression and transportation facilities and equipment and other facilities and equipment utilized in support of our crude oil and natural gas operations.

If any of these events occur, we could incur losses, liabilities and other additional costs as a result of:

• | injury or loss of life;

• | damage to, or destruction of, property, facilities, equipment and crude oil and natural gas reservoirs;

• | pollution or other environmental damage;

• | regulatory investigations and penalties as well as cleanup and remediation responsibilities and costs;

• | suspension or interruption of our operations, including due to injunction;

• | repairs necessary to resume operations; and

• | compliance with laws and regulations enacted as a result of such events.

We maintain insurance against many, but not all, such losses and liabilities in accordance with what we believe are customary industry practices and in amounts and at costs that we believe to be prudent and commercially practicable. However, the occurrence of any of these events and any losses or liabilities incurred as a result of such events, if uninsured or in excess of our insurance coverage, would reduce the funds available to us for our operations and could, in turn, have a material adverse effect on our business, financial condition and results of operations.
Our business could be materially and adversely affected by security threats, including cybersecurity threats, and other disruptions.
As an oil and gas producer, we face various security threats, including (i) cybersecurity threats to gain unauthorized access to, or control of, our sensitive information or to render our data or systems corrupted or unusable; (ii) threats to the security of our facilities and infrastructure or to the security of third-party facilities and infrastructure, such as gathering, transportation, processing, fractionation, refining and export facilities; and (iii) threats from terrorist acts. The potential for such security threats has subjected our operations to increased risks that could have a material adverse effect on our business.
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We rely extensively on information technology systems, including internally developed software, data hosting platforms, real-time data acquisition systems, third-party software, cloud services and other internally or externally hosted hardware and software platforms, to (i) estimate our oil and gas reserves, (ii) process and record financial and operating data, (iii) process and analyze all stages of our business operations, including exploration, drilling, completions, production, transportation, pipelines and other related activities and (iv) communicate with our employees and vendors, suppliers and other third parties. Although we have implemented and invested in, and will continue to implement and invest in, controls, procedures and protections (including internal and external personnel) that are designed to protect our systems, identify and remediate on a regular basis vulnerabilities in our systems and related infrastructure and monitor and mitigate the risk of data loss and other cybersecurity threats, such measures cannot entirely eliminate cybersecurity threats and the controls, procedures and protections we have implemented and invested in may prove to be ineffective.
Our systems and networks, and those of our business associates, may become the target of cybersecurity attacks, including, without limitation, denial-of-service attacks; malicious software; data privacy breaches by employees, insiders or others with authorized access; cyber or phishing-attacks; ransomware; attempts to gain unauthorized access to our data and systems; and other electronic security breaches. If any of these security breaches were to occur, we could suffer disruptions to our normal operations, including our drilling, completion, production and corporate functions, which could materially and adversely affect us in a variety of ways, including, but not limited to, the following:

• | unauthorized access to, and release of, our business data, reserves information, strategic information or other sensitive or proprietary information, which could have a material adverse effect on our ability to compete for oil and gas resources;

• | data corruption, communication interruption, or other operational disruptions during our drilling activities, which could result in our failure to reach the intended target or a drilling incident;

• | data corruption or operational disruptions of our production-related infrastructure, which could result in loss of production or accidental discharges;

• | unauthorized access to, and release of, personal information of our royalty owners, employees and vendors, which could expose us to allegations that we did not sufficiently protect such information;

• | a cybersecurity attack on a vendor or service provider, which could result in supply chain disruptions and could delay or halt our operations;

• | a cybersecurity attack on third-party gathering, transportation, processing, fractionation, refining or export facilities, which could result in reduced demand for our production or delay or prevent us from transporting and marketing our production, in either case resulting in a loss of revenues;

• | a cybersecurity attack involving commodities exchanges or financial institutions could slow or halt commodities trading, thus preventing us from marketing our production or engaging in hedging activities, resulting in a loss of revenues;

• | a deliberate corruption of our financial or operating data could result in events of non-compliance which could then lead to regulatory fines or penalties;

• | a cybersecurity attack on a communications network or power grid, which could cause operational disruptions resulting in a loss of revenues; and

• | a cybersecurity attack on our automated and surveillance systems, which could cause a loss of production and potential environmental hazards.

Further, strategic targets, such as energy-related assets, may be at a greater risk of terrorist attacks or cybersecurity attacks than other targets in the United States of America (United States or U.S.). Moreover, external digital technologies control nearly all of the crude oil and natural gas distribution and refining systems in the U.S. and abroad, which are necessary to transport and market our production. A cybersecurity attack directed at, for example, crude oil and natural gas distribution systems could (i) damage critical distribution and storage assets or the environment; (ii) disrupt energy supplies and markets, by delaying or preventing delivery of production to markets; and (iii) make it difficult or impossible to accurately account for production and settle transactions.
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Any such terrorist attack or cybersecurity attack that affects us, our customers, suppliers, or others with whom we do business and/or energy-related assets could have a material adverse effect on our business, including disruption of our operations, damage to our reputation, a loss of counterparty trust, reimbursement or other costs, increased compliance costs, significant litigation exposure and legal liability or regulatory fines, penalties or intervention. Although we have business continuity plans in place, our operations may be adversely affected by significant and widespread disruption to our systems and the infrastructure that supports our business. While we continue to evolve and modify our business continuity plans as well as our cyber threat detection and mitigation systems, there can be no assurance that they will be effective in avoiding disruption and business impacts. Further, our insurance may not be adequate to compensate us for all resulting losses, and the cost to obtain adequate coverage may increase for us in the future and some insurance coverage may become more difficult to obtain, if available at all.
While we have experienced cybersecurity attacks in the past, we have not suffered any losses as a result of such attacks; however, there is no assurance that we will not suffer such losses in the future. Further, as technologies evolve and cybersecurity threats become more sophisticated, we are continually expending additional resources to modify or enhance our security measures to protect against such threats and to identify and remediate on a regular basis any vulnerabilities in our information systems and related infrastructure that may be detected, and these expenditures in the future may be significant. Additionally, the continuing and evolving threat of cybersecurity attacks has resulted in evolving legal and compliance matters, including increased regulatory focus on prevention, which could require us to expend significant additional resources to meet such requirements.
Our ability to sell and deliver our crude oil, NGLs and natural gas production could be materially and adversely affected if adequate gathering, processing, compression, storage and transportation facilities and equipment are unavailable.
The sale of our crude oil, NGLs and natural gas production depends on a number of factors beyond our control, including the availability, proximity and capacity of, and costs associated with, gathering, processing, compression, storage and transportation facilities and equipment owned by third parties. These facilities may be temporarily unavailable to us due to market conditions, regulatory reasons, mechanical reasons or other factors or conditions, and may not be available to us in the future on terms we consider acceptable, if at all. In particular, in certain newer plays, the capacity of gathering, processing, compression, storage and transportation facilities and equipment may not be sufficient to accommodate potential production from existing and new wells. In addition, lack of financing, construction and permitting delays, permitting costs and regulatory or other constraints could limit or delay the construction, manufacture or other acquisition of new gathering, processing, compression, storage and transportation facilities, export facilities and equipment by third parties or us, and we may experience delays or increased costs in accessing the pipelines, gathering systems or rail systems necessary to transport our production to points of sale or delivery.
Any significant change in market or other conditions affecting gathering, processing, compression, storage or transportation facilities, export facilities and equipment or the availability of these facilities, including due to our failure or inability to obtain access to these facilities and equipment on terms acceptable to us or at all, could materially and adversely affect our business and, in turn, our financial condition and results of operations.
If we fail to acquire or find sufficient additional reserves over time, our reserves and production will decline from their current levels.
The rate of production from crude oil and natural gas properties generally declines as reserves are produced. Except to the extent that we conduct successful exploration, exploitation and development activities resulting in additional reserves, acquire additional properties containing reserves or, through engineering studies, identify additional behind-pipe zones or secondary recovery reserves, our reserves will decline as they are produced. Maintaining our production of crude oil and natural gas at, or increasing our production from, current levels, is, therefore, highly dependent upon our level of success in acquiring or finding additional reserves. To the extent we are unsuccessful in acquiring or finding additional reserves, our future cash flows and results of operations and, in turn, the trading price of our common stock could be materially and adversely affected.
We incur certain costs to comply with government regulations, particularly regulations relating to environmental protection and safety, and could incur even greater costs in the future.
Our crude oil, NGLs and natural gas operations and supporting activities are regulated extensively by federal, state, tribal and local governments and regulatory agencies, both domestically and in the foreign countries in which we do business, and are subject to interruption or termination by governmental and regulatory authorities based on environmental, health, safety or other considerations. Moreover, we have incurred and will continue to incur costs in our efforts to comply with the requirements of environmental, health, safety and other regulations. Further, the regulatory environment could change in ways that we cannot predict and that might substantially increase our costs of compliance and, in turn, materially and adversely affect our business, results of operations and financial condition.
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Specifically, as a current or past owner or lessee and operator of crude oil and natural gas properties, we are subject to various federal, state, tribal, local and foreign regulations relating to the discharge of materials into, and the protection of, the environment. These regulations may, among other things, impose liability on us for the cost of pollution cleanup resulting from current or past operations, subject us to liability for pollution damages and require suspension or cessation of operations in affected areas. Changes in, or additions to, these regulations could lead to increased operating and compliance costs and, in turn, materially and adversely affect our business, results of operations and financial condition.
The regulation of hydraulic fracturing is primarily conducted at the state and local level through permitting and other compliance requirements and, further, some state and local governments have imposed or have considered imposing various conditions and restrictions on drilling and completion operations. In November 2016, however, the U.S. Bureau of Land Management (BLM) issued a final rule that limits venting, flaring and leaking of natural gas from oil and gas wells and equipment on federal and Indian lands (in September 2018, the BLM issued a final rule rescinding certain requirements of the rule). In addition, the U.S. Environmental Protection Agency (U.S. EPA) has issued regulations relating to hydraulic fracturing and there have been various other proposals to regulate hydraulic fracturing at the federal level. Further, there have been proposals and positions taken by candidates for elected office and others regarding additional restrictions on, or the complete prohibition of, hydraulic fracturing operations.
Any such requirements, restrictions, conditions or prohibition could lead to operational delays and increased operating and compliance costs and, further, could delay or effectively prevent the development of crude oil and natural gas from formations which would not be economically viable without the use of hydraulic fracturing. Accordingly, our production of crude oil and natural gas could be materially and adversely affected. For additional discussion regarding hydraulic fracturing regulation, see Regulation of Hydraulic Fracturing and Other Operations - United States under ITEM 1, Business - Regulation.
We will continue to monitor and assess any proposed or new policies, legislation, regulations and treaties in the areas where we operate to determine the impact on our operations and take appropriate actions, where necessary. We are unable to predict the timing, scope and effect of any currently proposed or future laws, regulations or treaties, but the direct and indirect costs of such laws, regulations and treaties (if enacted) could materially and adversely affect our business, results of operations and financial condition. See also the risk factor below regarding the provisions of the Dodd-Frank Wall Street Reform and Consumer Protection Act with respect to regulation of derivatives transactions and entities (such as EOG) that participate in such transactions.
Regulations relating to greenhouse gas emissions and climate change could have a significant impact on our operations and we could incur significant cost in the future to comply.
Local, state, federal and international regulatory bodies have been increasingly focused on greenhouse gas (GHG) emissions and climate change issues in recent years. For example, we are subject to the U.S. EPA's rule requiring annual reporting of GHG emissions. In addition, in May 2016, the U.S. EPA issued regulations that require operators to reduce methane emissions and emissions of volatile organic compounds from new, modified and reconstructed crude oil and natural gas wells and equipment located at natural gas production gathering and booster stations, gas processing plants and natural gas transmission compressor stations.
At the international level, in December 2015, the U.S. participated in the 21st Conference of the Parties of the United Nations Framework Convention on Climate Change in Paris, France. The Paris Agreement (adopted at the conference) calls for nations to undertake efforts with respect to global temperatures and GHG emissions. The Paris Agreement went into effect on November 4, 2016. However, the U.S. has begun the process to withdraw from the Paris Agreement. In response, many state and local officials have stated their intent to intensify efforts to uphold the commitments set forth in the international accord.
It is possible that the Paris Agreement and subsequent domestic and international regulations will have adverse effects on the market for crude oil, natural gas and other fossil fuel products as well as adverse effects on the business and operations of companies engaged in the exploration for, and production of, crude oil, natural gas and other fossil fuel products. We are unable to predict the timing, scope and effect of any currently proposed or future investigations, laws, regulations or treaties regarding climate change and GHG emissions, but the direct and indirect costs of such investigations, laws, regulations and treaties (if enacted) could materially and adversely affect our operations, financial condition and results of operations. For additional discussion regarding climate change regulation, see Climate Change - United States under ITEM 1, Business - Regulation.
Further, increasing attention to global climate change risks has created the potential for a greater likelihood of governmental investigations and private and public litigation, which could increase our costs or otherwise adversely affect our business.
18

Tax laws and regulations applicable to crude oil and natural gas exploration and production companies may change over time, and such changes could materially and adversely affect our cash flows, results of operations and financial condition.
From time to time, legislation has been proposed that, if enacted into law, would make significant changes to U.S. federal income tax laws applicable to crude oil and natural gas exploration and production companies, such as with respect to the intangible drilling and development costs deduction and bonus tax depreciation. While these specific changes were not included in the Tax Cuts and Jobs Act signed into law in December 2017, no accurate prediction can be made as to whether any such legislative changes or similar or other tax law changes will be proposed in the future and, if enacted, what the specific provisions or the effective date of any such legislation would be. The elimination of certain U.S. federal income tax deductions, as well as any other changes to, or the imposition of new, federal, state, local or non-U.S. taxes (including the imposition of, or increases in, production, severance or similar taxes), could materially and adversely affect our cash flows, results of operations and financial condition.
A portion of our crude oil, NGLs and natural gas production may be subject to interruptions that could have a material and adverse effect on us.
A portion of our crude oil, NGLs and natural gas production may be interrupted, or shut in, from time to time for various reasons, including, but not limited to, as a result of accidents, weather conditions, the unavailability of gathering, processing, compression, storage, transportation, refining or export facilities or equipment or field labor issues, or intentionally as a result of market conditions such as crude oil, NGLs or natural gas prices that we deem uneconomic. If a substantial amount of our production is interrupted or shut in, our cash flows and, in turn, our financial condition and results of operations could be materially and adversely affected.
We have limited control over the activities on properties we do not operate.
Some of the properties in which we have an interest are operated by other companies and involve third-party working interest owners. As a result, we have limited ability to influence or control the operation or future development of such properties, including compliance with environmental, safety and other regulations, or the amount of capital expenditures that we will be required to fund with respect to such properties. Moreover, we are dependent on the other working interest owners of such projects to fund their contractual share of the capital expenditures of such projects. In addition, a third-party operator could also decide to shut-in or curtail production from wells, or plug and abandon marginal wells, on properties owned by that operator during periods of lower crude oil, NGLs or natural gas prices. These limitations and our dependence on the operator and third-party working interest owners for these projects could cause us to incur unexpected future costs, lower production and materially and adversely affect our financial condition and results of operations.
If we acquire crude oil, NGLs and natural gas properties, our failure to fully identify existing and potential problems, to accurately estimate reserves, production rates or costs, or to effectively integrate the acquired properties into our operations could materially and adversely affect our business, financial condition and results of operations.
From time to time, we seek to acquire crude oil and natural gas properties - for example, our October 2016 mergers and related asset purchase transactions with Yates Petroleum Corporation and certain of its affiliated entities. Although we perform reviews of properties to be acquired in a manner that we believe is duly diligent and consistent with industry practices, reviews of records and properties may not necessarily reveal existing or potential problems (such as title or environmental issues), nor may they permit us to become sufficiently familiar with the properties in order to assess fully their deficiencies and potential. Even when problems with a property are identified, we often may assume environmental and other risks and liabilities in connection with acquired properties pursuant to the acquisition agreements.
In addition, there are numerous uncertainties inherent in estimating quantities of crude oil and natural gas reserves (as discussed further below), actual future production rates and associated costs with respect to acquired properties. Actual reserves, production rates and costs may vary substantially from those assumed in our estimates. In addition, an acquisition may have a material and adverse effect on our business and results of operations, particularly during the periods in which the operations of the acquired properties are being integrated into our ongoing operations or if we are unable to effectively integrate the acquired properties into our ongoing operations.
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We have substantial capital requirements, and we may be unable to obtain needed financing on satisfactory terms, if at all.
We make, and will continue to make, substantial capital expenditures for the acquisition, exploration, development, production and transportation of crude oil, NGLs and natural gas reserves. We intend to finance our capital expenditures primarily through our cash flows from operations, commercial paper borrowings and sales of non-core assets and, to a lesser extent and if and as necessary, bank borrowings, borrowings under our revolving credit facility and public and private equity and debt offerings.
Lower crude oil, NGLs and natural gas prices, however, reduce our cash flows and could also delay or impair our ability to consummate certain planned non-core asset sales and divestitures. Further, if the condition of the credit and capital markets materially declines, we might not be able to obtain financing on terms we consider acceptable, if at all. In addition, weakness and/or volatility in domestic and global financial markets or economic conditions or a depressed commodity price environment may increase the interest rates that lenders and commercial paper investors require us to pay or adversely affect our ability to finance our capital expenditures through equity or debt offerings or other borrowings.
Similarly, a reduction in our cash flows (for example, as a result of lower crude oil, NGLs and natural gas prices or unanticipated well shut-ins) and the corresponding adverse effect on our financial condition and results of operations may also increase the interest rates that lenders and commercial paper investors require us to pay. A substantial increase in interest rates would decrease our net cash flows available for reinvestment. Any of these factors could have a material and adverse effect on our business, financial condition and results of operations.
Further, our ability to obtain financings, our borrowing costs and the terms of any financings are, in part, dependent on the credit ratings assigned to our debt by independent credit rating agencies. The interrelated factors that may impact our credit ratings include our debt levels; planned capital expenditures and sales of assets; near-term and long-term production growth opportunities; liquidity; asset quality; cost structure; product mix; and commodity pricing levels (including, but not limited to, the estimates and assumptions of credit rating agencies with respect to future commodity prices). We cannot provide any assurance that our current credit ratings will remain in effect for any given period of time or that our credit ratings will be raised in the future, nor can we provide any assurance that any of our credit ratings will not be lowered.
The inability of our customers and other contractual counterparties to satisfy their obligations to us may have a material and adverse effect on us.
We have various customers for the crude oil, natural gas and related commodities that we produce as well as various other contractual counterparties, including several financial institutions and affiliates of financial institutions. Domestic and global economic conditions, including the financial condition of financial institutions generally, may adversely affect the ability of our customers and other contractual counterparties to pay amounts owed to us from time to time and to otherwise satisfy their contractual obligations to us, as well as their ability to access the credit and capital markets for such purposes.
Moreover, our customers and other contractual counterparties may be unable to satisfy their contractual obligations to us for reasons unrelated to these conditions and factors, such as the unavailability of required facilities or equipment due to mechanical failure or market conditions. Furthermore, if a customer is unable to satisfy its contractual obligation to purchase crude oil, natural gas or related commodities from us, we may be unable to sell such production to another customer on terms we consider acceptable, if at all, due to the geographic location of such production; the availability, proximity and capacity of appropriate gathering, processing, compression, storage, transportation and refining facilities; or market or other factors and conditions.
The inability of our customers and other contractual counterparties to pay amounts owed to us and to otherwise satisfy their contractual obligations to us may materially and adversely affect our business, financial condition, results of operations and cash flows.
20

Competition in the oil and gas exploration and production industry is intense, and some of our competitors have greater resources than we have.
We compete with major integrated oil and gas companies, government-affiliated oil and gas companies and other independent oil and gas companies for the acquisition of licenses and leases, properties and reserves and access to the facilities, equipment, materials, services and employees and other contract personnel (including geologists, geophysicists, engineers and other specialists) necessary to explore for, develop, produce, market and transport crude oil and natural gas. Certain of our competitors have financial and other resources substantially greater than those we possess and have established strategic long-term positions or strong governmental relationships in countries or areas in which we may seek new or expanded entry. As a consequence, we may be at a competitive disadvantage in certain respects, such as in bidding for drilling rights or in accessing necessary services, facilities, equipment, materials and personnel. In addition, our larger competitors may have a competitive advantage when responding to factors that affect demand for crude oil and natural gas, such as changing worldwide prices and levels of production and the cost and availability of alternative fuels. We also face competition, to a lesser extent, from competing energy sources, such as alternative energy sources.
Reserve estimates depend on many interpretations and assumptions that may turn out to be inaccurate. Any significant inaccuracies in these interpretations and assumptions could cause the reported quantities of our reserves to be materially misstated.
Estimating quantities of crude oil, NGLs and natural gas reserves and future net cash flows from such reserves is a complex, inexact process. It requires interpretations of available technical data and various assumptions, including assumptions relating to economic factors, made by our management and our independent petroleum consultants. Any significant inaccuracies in these interpretations or assumptions could cause the reported quantities of our reserves and future net cash flows from such reserves to be overstated or understated. Also, the data for a given reservoir may also change substantially over time as a result of numerous factors including, but not limited to, additional development activity, evolving production history, continual reassessment of the viability of production under varying economic conditions and improvements and other changes in geological, geophysical and engineering evaluation methods.
To prepare estimates of our economically recoverable crude oil, NGLs and natural gas reserves and future net cash flows from our reserves, we analyze many variable factors, such as historical production from the area compared with production rates from other producing areas. We also analyze available geological, geophysical, production and engineering data, and the extent, quality and reliability of this data can vary. The process also involves economic assumptions relating to commodity prices, production costs, gathering, processing, compression, storage and transportation costs, severance, ad valorem and other applicable taxes, capital expenditures and workover and remedial costs, many of which factors are or may be beyond our control. Our actual reserves and future net cash flows from such reserves most likely will vary from our estimates. Any significant variance, including any significant revisions or "write-downs" to our existing reserve estimates, could materially and adversely affect our business, financial condition and results of operations and, in turn, the trading price of our common stock. For related discussion, see ITEM 2, Properties - Oil and Gas Exploration and Production - Properties and Reserves and Supplemental Information to Consolidated Financial Statements.
Weather and climate may have a significant and adverse impact on us.
Demand for crude oil and natural gas is, to a degree, dependent on weather and climate, which impacts, among other things, the price we receive for the commodities we produce and, in turn, our cash flows and results of operations. For example, relatively warm temperatures during a winter season generally result in relatively lower demand for natural gas (as less natural gas is used to heat residences and businesses) and, as a result, lower prices for natural gas production during that season.
In addition, there has been public discussion that climate change may be associated with more frequent or more extreme weather events, changes in temperature and precipitation patterns, changes to ground and surface water availability, and other related phenomena, which could affect some, or all, of our operations. Our exploration, exploitation and development activities and equipment could be adversely affected by extreme weather events, such as winter storms, flooding and tropical storms and hurricanes in the Gulf of Mexico, which may cause a loss of production from temporary cessation of activity or damaged facilities and equipment. Such extreme weather events could also impact other areas of our operations, including access to our drilling and production facilities for routine operations, maintenance and repairs, the installation and operation of gathering, processing, compression, storage, transportation and/or export facilities and the availability of, and our access to, necessary third-party services, such as gathering, processing, compression, storage and transportation services and export services. Such extreme weather events and changes in weather patterns may materially and adversely affect our business and, in turn, our financial condition and results of operations.
21

Our hedging activities may prevent us from benefiting fully from increases in crude oil, NGLs and natural gas prices and may expose us to other risks, including counterparty risk.
We use derivative instruments (primarily financial basis swap, price swap, option, swaption and collar contracts) to hedge the impact of fluctuations in crude oil, NGLs and natural gas prices on our results of operations and cash flows. To the extent that we engage in hedging activities to protect ourselves against commodity price declines, we may be prevented from fully realizing the benefits of increases in crude oil, NGLs and natural gas prices above the prices established by our hedging contracts. A portion of our forecasted production for 2020 is subject to fluctuating market prices. If we are ultimately unable to hedge additional production volumes for 2020 and beyond, we will be impacted by any declines in commodity prices, which may result in lower net cash provided by operating activities. In addition, our hedging activities may expose us to the risk of financial loss in certain circumstances, including instances in which the counterparties to our hedging contracts fail to perform under the contracts.
Federal legislation and related regulations regarding derivatives transactions could have a material and adverse impact on our hedging activities.
As discussed in the risk factor immediately above, we use derivative instruments to hedge the impact of fluctuations in crude oil, NGLs and natural gas prices on our results of operations and cash flows. In 2010, Congress adopted the Dodd-Frank Wall Street Reform and Consumer Protection Act (Dodd-Frank Act), which, among other matters, provides for federal oversight of the over-the-counter derivatives market and entities that participate in that market and mandates that the Commodity Futures Trading Commission (CFTC), the U.S. Securities and Exchange Commission (SEC) and certain federal agencies that regulate the banking and insurance sectors (the Prudential Regulators) adopt rules or regulations implementing the Dodd-Frank Act and providing definitions of terms used in the Dodd-Frank Act. The Dodd-Frank Act establishes margin requirements and requires clearing and trade execution practices for certain categories of swaps and may result in certain market participants needing to curtail their derivatives activities. Although some of the rules necessary to implement the Dodd-Frank Act are yet to be adopted, the CFTC, the SEC and the Prudential Regulators have issued numerous rules, including a rule establishing an "end-user" exception to mandatory clearing (End-User Exception), a rule regarding margin for uncleared swaps (Margin Rule) and a proposed rule imposing position limits (Position Limits Rule).
We qualify as a "non-financial entity" for purposes of the End-User Exception and, as such, we are eligible for such exception. As a result, our hedging activities are not subject to mandatory clearing or the margin requirements imposed in connection with mandatory clearing. We also qualify as a "non-financial end user" for purposes of the Margin Rule; therefore, our uncleared swaps are not subject to regulatory margin requirements. Finally, we believe our hedging activities would constitute bona fide hedging under the Position Limits Rule and would not be subject to limitation under such rule if it is enacted. However, many of our hedge counterparties and many other market participants are not eligible for the End-User Exception, are subject to mandatory clearing and the Margin Rule for swaps with some or all of their other swap counterparties, and may be subject to the Position Limits Rule. In addition, the European Union and other non-U.S. jurisdictions have enacted laws and regulations related to derivatives (collectively, Foreign Regulations) which apply to our transactions with counterparties subject to such Foreign Regulations.
The Dodd-Frank Act, the rules adopted thereunder and the Foreign Regulations could increase the cost of derivative contracts, alter the terms of derivative contracts, reduce the availability of derivatives to protect against the price risks we encounter, reduce our ability to monetize or restructure our existing derivative contracts, lessen the number of available counterparties and, in turn, increase our exposure to less creditworthy counterparties. If our use of derivatives is reduced as a result of the Dodd-Frank Act, related regulations or the Foreign Regulations, our results of operations may become more volatile, and our cash flows may be less predictable, which could adversely affect our ability to plan for, and fund, our capital expenditure requirements. Any of these consequences could have a material and adverse effect on our business, financial condition and results of operations.
Our business and prospects for future success depend to a significant extent upon the continued service and performance of our management team.
Our business and prospects for future success, including the successful implementation of our strategies and handling of issues integral to our future success, depend to a significant extent upon the continued service and performance of our management team. The loss of any member of our management team, and our inability to attract, motivate and retain substitute management personnel with comparable experience and skills, could materially and adversely affect our business, financial condition and results of operations.
22

We operate in other countries and, as a result, are subject to certain political, economic and other risks.
Our operations in jurisdictions outside the U.S. are subject to various risks inherent in foreign operations. These risks include, among other risks:

• | increases in taxes and governmental royalties;

• | changes in laws and policies governing operations of foreign-based companies;

• | loss of revenue, loss of or damage to equipment, property and other assets and interruption of operations as a result of expropriation, nationalization, acts of terrorism, war, civil unrest and other political risks;

• | unilateral or forced renegotiation, modification or nullification of existing contracts with governmental entities;

• | difficulties enforcing our rights against a governmental agency because of the doctrine of sovereign immunity and foreign sovereignty over international operations; and

• | currency restrictions or exchange rate fluctuations.

Our international operations may also be adversely affected by U.S. laws and policies affecting foreign trade and taxation, including tariffs or trade or other economic sanctions and modifications to, or withdrawal from, international trade treaties. The realization of any of these factors could materially and adversely affect our business, financial condition and results of operations.
Unfavorable currency exchange rate fluctuations could adversely affect our results of operations.
The reporting currency for our financial statements is the U.S. dollar. However, certain of our subsidiaries are located in countries other than the U.S. and have functional currencies other than the U.S. dollar. The assets, liabilities, revenues and expenses of certain of these foreign subsidiaries are denominated in currencies other than the U.S. dollar. To prepare our consolidated financial statements, we must translate those assets, liabilities, revenues and expenses into U.S. dollars at then-applicable exchange rates. Consequently, increases and decreases in the value of the U.S. dollar versus other currencies will affect the amount of these items in our consolidated financial statements, even if the amount has not changed in the original currency. These translations could result in changes to our results of operations from period to period. For the fiscal year ended December 31, 2019, less than 1% of our net operating revenues related to operations of our foreign subsidiaries whose functional currency was not the U.S. dollar.
Terrorist activities and military and other actions could materially and adversely affect us.
Terrorist attacks and the threat of terrorist attacks (including cyber-related attacks), whether domestic or foreign, as well as military or other actions taken in response to these acts, could cause instability in the global financial and energy markets. The U.S. government has at times issued public warnings that indicate that energy-related assets, such as transportation and refining facilities, might be specific targets of terrorist organizations.
Any such actions and the threat of such actions, including any resulting political instability or society disruption, could materially and adversely affect us in unpredictable ways, including, but not limited to, the disruption of energy supplies and markets, the reduction of overall demand for crude oil and natural gas, increased volatility in crude oil and natural gas prices or the possibility that the facilities and other infrastructure on which we rely could be a direct target or an indirect casualty of an act of terrorism, and, in turn, could materially and adversely affect our business, financial condition and results of operations.
ITEM 1B. Unresolved Staff Comments
Not applicable.
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ITEM 2. Properties
Oil and Gas Exploration and Production - Properties and Reserves
Reserve Information. For estimates and discussions of EOG's net proved reserves of crude oil and condensate, natural gas liquids (NGLs) and natural gas, the qualifications of the preparers of EOG's reserve estimates, EOG's independent petroleum consultants and EOG's processes and controls with respect to its reserve estimates, see "Supplemental Information to Consolidated Financial Statements."
There are numerous uncertainties inherent in estimating quantities of proved reserves and in projecting future rates of production and timing of development expenditures, including many factors beyond the control of the producer. The reserve data set forth in "Supplemental Information to Consolidated Financial Statements" represent only estimates. Reserve engineering is a complex subjective process of estimating underground accumulations of crude oil and condensate, NGLs and natural gas that cannot be measured in an exact manner. The accuracy of any reserve estimate is a function of the amount and quality of available data and of engineering and geological interpretation and judgment. As a result, estimates by different engineers normally vary. In addition, results of drilling, testing and production or fluctuations in commodity prices subsequent to the date of an estimate may justify revision of such estimate (upward or downward). Accordingly, reserve estimates are often different from the quantities ultimately recovered. Further, the meaningfulness of such estimates is highly dependent upon the accuracy of the assumptions upon which they were based. For related discussion, see ITEM 1A, Risk Factors, and "Supplemental Information to Consolidated Financial Statements."
In general, the rate of production from crude oil and natural gas properties declines as reserves are produced. Except to the extent EOG acquires additional properties containing proved reserves, conducts successful exploration, exploitation and development activities or, through engineering studies, identifies additional behind-pipe zones or secondary recovery reserves, the proved reserves of EOG will decline as reserves are produced. The volumes to be generated from future activities of EOG are therefore highly dependent upon the level of success in finding or acquiring additional reserves. For related discussion, see ITEM 1A, Risk Factors. EOG's estimates of reserves filed with other federal agencies are consistent with the information set forth in "Supplemental Information to Consolidated Financial Statements."
Acreage. The following table summarizes EOG's gross and net developed and undeveloped acreage at December 31, 2019. Excluded is acreage in which EOG's interest is limited to owned royalty, overriding royalty and other similar interests.

| Developed |  | Undeveloped |  | Total
| Gross |  | Net |  | Gross |  | Net |  | Gross |  | Net
United States | 2,773,841 |  |  | 2,034,901 |  |  | 3,083,256 |  |  | 2,272,783 |  |  | 5,857,097 |  |  | 4,307,684 |
Trinidad | 79,277 |  |  | 67,474 |  |  | 201,435 |  |  | 115,274 |  |  | 280,712 |  |  | 182,748 |
China | 130,548 |  |  | 130,548 |  |  | — |  |  | — |  |  | 130,548 |  |  | 130,548 |
Canada | 39,842 |  |  | 35,613 |  |  | 103,618 |  |  | 96,494 |  |  | 143,460 |  |  | 132,107 |
Total | 3,023,508 |  |  | 2,268,536 |  |  | 3,388,309 |  |  | 2,484,551 |  |  | 6,411,817 |  |  | 4,753,087 |

Most of our undeveloped oil and gas leases, particularly in the United States, are subject to lease expiration if initial wells are not drilled within a specified period, generally between three and five years. Approximately 0.4 million net acres will expire in 2020, 0.3 million net acres will expire in 2021 and 0.1 million net acres will expire in 2022 if production is not established or we take no other action to extend the terms of the leases or obtain concessions. In the ordinary course of business, based on our evaluations of certain geologic trends and prospective economics, we have allowed certain lease acreage to expire and may allow additional acreage to expire in the future. As of December 31, 2019, there were no proved undeveloped reserves associated with such undeveloped acreage.
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Productive Well Summary. The following table represents EOG's gross and net productive wells, including 2,465 wells in which we hold a royalty interest.

| Crude Oil |  | Natural Gas |  | Total
| Gross |  | Net |  | Gross |  | Net |  | Gross |  | Net
United States | 9,798 |  |  | 6,882 |  |  | 5,133 |  |  | 2,735 |  |  | 14,931 |  |  | 9,617 |
Trinidad | 2 |  |  | 2 |  |  | 30 |  |  | 24 |  |  | 32 |  |  | 26 |
China | — |  |  | — |  |  | 38 |  |  | 38 |  |  | 38 |  |  | 38 |
Canada | — |  |  | — |  |  | 24 |  |  | 23 |  |  | 24 |  |  | 23 |
Total (1) | 9,800 |  |  | 6,884 |  |  | 5,225 |  |  | 2,820 |  |  | 15,025 |  |  | 9,704 |

(1) | EOG operated 10,641 gross and 9,297 net producing crude oil and natural gas wells at December 31, 2019. Gross crude oil and natural gas wells include 238 wells with multiple completions.

Drilling and Acquisition Activities. During the years ended December 31, 2019, 2018 and 2017, EOG expended $6.6 billion, $6.4 billion and $4.4 billion, respectively, for exploratory and development drilling, facilities and acquisition of leases and producing properties, including asset retirement obligations of $186 million, $70 million and $56 million, respectively. The following tables set forth the results of the gross crude oil and natural gas wells completed for the years ended December 31, 2019, 2018 and 2017:

| Gross Development Wells Completed |  | Gross Exploratory Wells Completed
| Crude Oil |  | Natural Gas |  | Dry Hole |  | Total |  | Crude Oil |  | Natural Gas |  | Dry Hole |  | Total
2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States | 833 |  |  | 26 |  |  | 14 |  |  | 873 |  |  | 4 |  |  | — |  |  | 1 |  |  | 5 |
Trinidad | — |  |  | 1 |  |  | — |  |  | 1 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
China | — |  |  | 2 |  |  | — |  |  | 2 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
Total | 833 |  |  | 29 |  |  | 14 |  |  | 876 |  |  | 4 |  |  | — |  |  | 3 |  |  | 7 |
2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States | 834 |  |  | 39 |  |  | 22 |  |  | 895 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
Trinidad | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
China | — |  |  | 1 |  |  | — |  |  | 1 |  |  | — |  |  | 2 |  |  | — |  |  | 2 |
Total | 834 |  |  | 40 |  |  | 22 |  |  | 896 |  |  | — |  |  | 2 |  |  | 1 |  |  | 3 |
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States | 568 |  |  | 22 |  |  | 13 |  |  | 603 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
Trinidad | — |  |  | 8 |  |  | — |  |  | 8 |  |  | — |  |  | 1 |  |  | — |  |  | 1 |
China | — |  |  | 3 |  |  | — |  |  | 3 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
Total | 568 |  |  | 33 |  |  | 13 |  |  | 614 |  |  | — |  |  | 1 |  |  | 2 |  |  | 3 |

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The following tables set forth the results of the net crude oil and natural gas wells completed for the years ended December 31, 2019, 2018 and 2017:

| Net Development Wells Completed |  | Net Exploratory Wells Completed
| Crude Oil |  | Natural Gas |  | Dry Hole |  | Total |  | Crude Oil |  | Natural Gas |  | Dry Hole |  | Total
2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States | 721 |  |  | 22 |  |  | 12 |  |  | 755 |  |  | 4 |  |  | — |  |  | 1 |  |  | 5 |
Trinidad | — |  |  | 1 |  |  | — |  |  | 1 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
China | — |  |  | 2 |  |  | — |  |  | 2 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
Total | 721 |  |  | 25 |  |  | 12 |  |  | 758 |  |  | 4 |  |  | — |  |  | 3 |  |  | 7 |
2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States | 704 |  |  | 37 |  |  | 18 |  |  | 759 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
Trinidad | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
China | — |  |  | 1 |  |  | — |  |  | 1 |  |  | — |  |  | 2 |  |  | — |  |  | 2 |
Total | 704 |  |  | 38 |  |  | 18 |  |  | 760 |  |  | — |  |  | 2 |  |  | 1 |  |  | 3 |
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States | 490 |  |  | 21 |  |  | 13 |  |  | 524 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
Trinidad | — |  |  | 6 |  |  | — |  |  | 6 |  |  | — |  |  | 1 |  |  | — |  |  | 1 |
China | — |  |  | 3 |  |  | — |  |  | 3 |  |  | — |  |  | — |  |  | 1 |  |  | 1 |
Total | 490 |  |  | 30 |  |  | 13 |  |  | 533 |  |  | — |  |  | 1 |  |  | 2 |  |  | 3 |

EOG participated in the drilling of wells that were in the process of being drilled or completed at the end of the period as set out in the table below for the years ended December 31, 2019, 2018 and 2017:

| Wells in Progress at End of Period
| 2019 |  | 2018 |  | 2017
| Gross |  | Net |  | Gross |  | Net |  | Gross |  | Net
United States | 317 |  |  | 286 |  |  | 297 |  |  | 238 |  |  | 247 |  |  | 208 |
Trinidad | 1 |  |  | 1 |  |  | — |  |  | — |  |  | — |  |  | — |
China | 3 |  |  | 3 |  |  | 4 |  |  | 4 |  |  | 1 |  |  | 1 |
Total | 321 |  |  | 290 |  |  | 301 |  |  | 242 |  |  | 248 |  |  | 209 |

Included in the previous table of wells in progress at the end of the period were wells which had been drilled, but were not completed (DUCs). In order to effectively manage its capital expenditures and to provide flexibility in managing its drilling rig and well completion schedules, EOG, from time to time, will have an inventory of DUCs. At December 31, 2019, there were approximately 100 MMBoe of net proved undeveloped reserves (PUDs) associated with EOG's inventory of DUCs. Under EOG's current drilling plan, all such DUCs are expected to be completed within five years from the original booking date of such reserves. The following table sets forth EOG's DUCs, for which PUDs had been booked, as of the end of each period.

| Drilled Uncompleted Wells at End of Period
| 2019 |  | 2018 |  | 2017
| Gross |  | Net |  | Gross |  | Net |  | Gross |  | Net
United States | 188 |  |  | 165 |  |  | 168 |  |  | 137 |  |  | 147 |  |  | 121 |
China | 3 |  |  | 3 |  |  | 3 |  |  | 3 |  |  | 1 |  |  | 1 |
Total | 191 |  |  | 168 |  |  | 171 |  |  | 140 |  |  | 148 |  |  | 122 |

26

EOG acquired wells as set forth in the following tables as of the end of each period (excluding the acquisition of additional interests in 11, 114 and 29 net wells in which EOG previously owned an interest for the years ended December 31, 2019, 2018 and 2017, respectively):

| Gross Acquired Wells |  | Net Acquired Wells
| Crude Oil |  | Natural Gas |  | Total |  | Crude Oil |  | Natural Gas |  | Total
2019 |  |  |  |  |  |  |  |  |  |  |
United States | 9 |  |  | 45 |  |  | 54 |  |  | 9 |  |  | 37 |  |  | 46 |
Total | 9 |  |  | 45 |  |  | 54 |  |  | 9 |  |  | 37 |  |  | 46 |
2018 |  |  |  |  |  |  |  |  |  |  |
United States | 15 |  |  | 13 |  |  | 28 |  |  | 10 |  |  | 6 |  |  | 16 |
Total | 15 |  |  | 13 |  |  | 28 |  |  | 10 |  |  | 6 |  |  | 16 |
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States | 12 |  |  | 3 |  |  | 15 |  |  | 6 |  |  | 2 |  |  | 8 |
Total | 12 |  |  | 3 |  |  | 15 |  |  | 6 |  |  | 2 |  |  | 8 |

Other Property, Plant and Equipment. EOG's other property, plant and equipment primarily includes gathering, transportation and processing infrastructure assets, buildings, crude-by-rail assets, and sand mine and sand processing assets which support EOG's exploration and production activities. EOG does not own drilling rigs, hydraulic fracturing equipment or rail cars. All of EOG's drilling and completion activities are conducted on a contractual basis with independent drilling contractors and other third-party service contractors.
ITEM 3. Legal Proceedings
See the information set forth under the "Contingencies" caption in Note 8 of the Notes to Consolidated Financial Statements, which is incorporated by reference herein.
ITEM 4. Mine Safety Disclosures
The information concerning mine safety violations and other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K (17 CFR 229.104) is included in Exhibit 95 to this report.
27

PART II
ITEM 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
EOG's common stock is traded on the New York Stock Exchange (NYSE) under the ticker symbol "EOG."
As of February 13, 2020, there were approximately 2,170 record holders and approximately 386,000 beneficial owners of EOG's common stock.
The following table sets forth, for the periods indicated, EOG's share repurchase activity:

Period |  | (a) Total Number of Shares Purchased (1) |  | (b) Average Price Paid per Share |  | (c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs |  | (d) Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs (2)
October 1, 2019 - October 31, 2019 |  | 18,117 |  |  | $ | 71.38 |  |  | — |  | 6,386,200 |
November 1, 2019 - November 30, 2019 |  | 2,122 |  |  | 71.27 |  |  | — |  | 6,386,200 |
December 1, 2019 - December 31, 2019 |  | 18,628 |  |  | 78.60 |  |  | — |  | 6,386,200 |
Total |  | 38,867 |  |  | $ | 74.84 |  |  |  |  |  |

(1) | The 38,867 total shares for the quarter ended December 31, 2019, and the 309,888 total shares for the full year 2019, consist solely of shares that were withheld by or returned to EOG (i) in satisfaction of tax withholding obligations that arose upon the exercise of employee stock options or stock-settled stock appreciation rights or the vesting of restricted stock, restricted stock unit or performance unit grants or (ii) in payment of the exercise price of employee stock options. These shares do not count against the 10 million aggregate share repurchase authorization of EOG's Board discussed below.

(2) | In September 2001, the Board authorized the repurchase of up to 10,000,000 shares of EOG's common stock. During 2019, EOG did not repurchase any shares under the Board-authorized repurchase program. EOG last repurchased shares under this program in March 2003.

28

Comparative Stock Performance
The following performance graph and related information shall not be deemed "soliciting material" or to be "filed" with the United States Securities and Exchange Commission, nor shall such information be incorporated by reference into any future filing under the Securities Act of 1933, as amended, or Securities Exchange Act of 1934, as amended, except to the extent that EOG specifically requests that such information be treated as "soliciting material" or specifically incorporates such information by reference into such a filing.
The performance graph shown below compares the cumulative five-year total return to stockholders on EOG's common stock as compared to the cumulative five-year total returns on the Standard and Poor's 500 Index (S&P 500) and the Standard and Poor's 500 Oil & Gas Exploration & Production Index (S&P O&G E&P). The comparison was prepared based upon the following assumptions:

1. | $100 was invested on December 31, 2014 in each of the following: common stock of EOG, the S&P 500 and the S&P O&G E&P.

2. | Dividends are reinvested.

Comparison of Five-Year Cumulative Total Returns
EOG, S&P 500 and S&P O&G E&P
(Performance Results Through December 31, 2019)

| 2014 |  | 2015 |  | 2016 |  | 2017 |  | 2018 |  | 2019
EOG | $ | 100.00 |  |  | $ | 77.47 |  |  | $ | 111.59 |  |  | $ | 119.93 |  |  | $ | 97.55 |  |  | $ | 94.81 |
S&P 500 | $ | 100.00 |  |  | $ | 101.39 |  |  | $ | 113.52 |  |  | $ | 138.30 |  |  | $ | 132.24 |  |  | $ | 173.88 |
S&P O&G E&P | $ | 100.00 |  |  | $ | 65.85 |  |  | $ | 87.47 |  |  | $ | 81.96 |  |  | $ | 65.98 |  |  | $ | 73.91 |

29

ITEM 6. Selected Financial Data
(In Thousands, Except Per Share Data)
The following selected consolidated financial information should be read in conjunction with ITEM 7, Management's Discussion and Analysis of Financial Condition and Results of Operations and ITEM 8, Financial Statements and Supplementary Data.

Year Ended December 31 |  | 2019 |  | 2018 |  | 2017 |  | 2016 |  | 2015
Statement of Income Data: |  |  |  |  |  |  |  |  |  |
Operating Revenues and Other (1) |  | $ | 17,379,973 |  |  | $ | 17,275,399 |  |  | $ | 11,208,320 |  |  | $ | 7,650,632 |  |  | $ | 8,757,428 |
Operating Income (Loss) |  | $ | 3,699,011 |  |  | $ | 4,469,346 |  |  | $ | 926,402 |  |  | $ | (1,225,281 | ) |  | $ | (6,686,079 | )
Net Income (Loss) |  | $ | 2,734,910 |  |  | $ | 3,419,040 |  |  | $ | 2,582,579 |  |  | $ | (1,096,686 | ) |  | $ | (4,524,515 | )
Net Income (Loss) Per Share |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 4.73 |  |  | $ | 5.93 |  |  | $ | 4.49 |  |  | $ | (1.98 | ) |  | $ | (8.29 | )
Diluted |  | $ | 4.71 |  |  | $ | 5.89 |  |  | $ | 4.46 |  |  | $ | (1.98 | ) |  | $ | (8.29 | )
Dividends Per Common Share |  | $ | 1.0825 |  |  | $ | 0.81 |  |  | $ | 0.67 |  |  | $ | 0.67 |  |  | $ | 0.67 |
Average Number of Common Shares |  |  |  |  |  |  |  |  |  |
Basic |  | 577,670 |  |  | 576,578 |  |  | 574,620 |  |  | 553,384 |  |  | 545,697 |
Diluted |  | 580,777 |  |  | 580,441 |  |  | 578,693 |  |  | 553,384 |  |  | 545,697 |

At December 31 |  | 2019 |  | 2018 |  | 2017 |  | 2016 |  | 2015
Balance Sheet Data: |  |  |  |  |  |  |  |  |  |
Total Property, Plant and Equipment, Net |  | $ | 30,364,595 |  |  | $ | 28,075,519 |  |  | $ | 25,665,037 |  |  | $ | 25,707,078 |  |  | $ | 24,210,721 |
Total Assets (2) (3) (4) |  | 37,124,608 |  |  | 33,934,474 |  |  | 29,833,078 |  |  | 29,299,201 |  |  | 26,834,908 |
Total Debt (4) |  | 5,175,443 |  |  | 6,083,262 |  |  | 6,387,071 |  |  | 6,986,358 |  |  | 6,655,490 |
Total Stockholders' Equity |  | 21,640,716 |  |  | 19,364,188 |  |  | 16,283,273 |  |  | 13,981,581 |  |  | 12,943,035 |

(1) | Effective January 1, 2018, EOG adopted the provisions of Accounting Standards Update (ASU) 2014-09, "Revenue From Contracts With Customers" (ASU 2014-09). In connection with the adoption of ASU 2014-09, EOG presents natural gas processing fees relating to certain processing and marketing agreements within its United States segment as Gathering and Processing Costs instead of as a deduction to Natural Gas Revenues. There was no impact to operating income, net income or cash flows resulting from changes to the presentation of natural gas processing fees. EOG elected to adopt ASU 2014-09 using the modified retrospective approach with no reclassification of amounts for the years ended December 31, 2017, 2016 and 2015 (see Note 1 to Consolidated Financial Statements).

(2) | Effective January 1, 2019, EOG adopted the provisions of ASU 2016-02, "Leases (Topic 842)" (ASU 2016-02), which require that lessees recognize a right-of-use (ROU) asset and related lease liability, representing the obligation to make lease payments of certain lease transactions, on the Consolidated Balance Sheets. EOG elected to adopt ASU 2016-02 and other related ASUs using the modified retrospective approach with a cumulative-effect adjustment to the opening balance of retained earnings as of the effective date. Financial results reported in periods prior to January 1, 2019, are unchanged. There was no impact to retained earnings upon adoption of ASU 2016-02 and other related ASUs. See Notes 1 and 18 to Consolidated Financial Statements.

(3) | Effective January 1, 2017, EOG adopted the provisions of ASU 2015-17, "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes" (ASU 2015-17), which simplifies the presentation of deferred taxes in a classified balance sheet by eliminating the requirement to separate deferred income tax liabilities and assets into current and noncurrent amounts. Instead, ASU 2015-17 requires that all deferred tax liabilities and assets be shown as noncurrent in a classified balance sheet. In connection with the adoption of ASU 2015-17, EOG restated its Consolidated Balance Sheets at December 31, 2016 and 2015 by $160 million and $136 million, respectively, from deferred tax liabilities to deferred tax assets.

(4) | Effective January 1, 2016, EOG adopted the provisions of ASU 2015-03, "Interest - Computation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs" (ASU 2015-03). ASU 2015-03 requires that debt issuance costs be presented in the balance sheet as a direct reduction from the related debt liability rather than as an asset. In connection with the adoption of ASU 2015-03, EOG restated its Consolidated Balance Sheets at December 31, 2015 by $4.8 million of unamortized debt issuance costs from Other Assets to Long-Term Debt.

30

ITEM 7. Management's Discussion and Analysis of Financial Condition and Results of Operations
Overview
EOG Resources, Inc., together with its subsidiaries (collectively, EOG), is one of the largest independent (non-integrated) crude oil and natural gas companies in the United States with proved reserves in the United States, Trinidad and China. EOG operates under a consistent business and operational strategy that focuses predominantly on maximizing the rate of return on investment of capital by controlling operating and capital costs and maximizing reserve recoveries. Each prospective drilling location is evaluated by its estimated rate of return. This strategy is intended to enhance the generation of cash flow and earnings from each unit of production on a cost-effective basis, allowing EOG to deliver long-term production growth while maintaining a strong balance sheet. EOG implements its strategy primarily by emphasizing the drilling of internally generated prospects in order to find and develop low-cost reserves. Maintaining the lowest possible operating cost structure that is consistent with efficient, safe and environmentally responsible operations is also an important goal in the implementation of EOG's strategy.
EOG realized net income of $2,735 million during 2019 as compared to net income of $3,419 million for 2018. At December 31, 2019, EOG's total estimated net proved reserves were 3,329 million barrels of oil equivalent (MMBoe), an increase of 401 MMBoe from December 31, 2018. During 2019, net proved crude oil and condensate and natural gas liquids (NGLs) reserves increased by 287 million barrels (MMBbl), and net proved natural gas reserves increased by 683 billion cubic feet or 114 MMBoe, in each case from December 31, 2018.
Operations
Several important developments have occurred since January 1, 2019.
United States. EOG's efforts to identify plays with large reserve potential have proven to be successful. EOG continues to drill numerous wells in large acreage plays, which in the aggregate have contributed substantially to, and are expected to continue to contribute substantially to, EOG's crude oil and liquids-rich natural gas production. EOG has placed an emphasis on applying its horizontal drilling and completion expertise to unconventional crude oil and liquids-rich reservoirs.
During 2019, EOG continued to focus on increasing drilling, completion and operating efficiencies gained in prior years. In addition, EOG continued to evaluate certain potential crude oil and liquids-rich natural gas exploration and development prospects and to look for opportunities to add drilling inventory through leasehold acquisitions, farm-ins, exchanges or tactical acquisitions. On a volumetric basis, as calculated using a ratio of 1.0 barrel of crude oil and condensate or NGLs to 6.0 thousand cubic feet of natural gas, crude oil and condensate and NGLs production accounted for approximately 77% of United States production during both 2019 and 2018. During 2019, drilling and completion activities occurred primarily in the Eagle Ford play, Delaware Basin play and Rocky Mountain area. EOG's major producing areas in the United States are in New Mexico, North Dakota, Texas and Wyoming.
Trinidad. In Trinidad, EOG continues to deliver natural gas under existing supply contracts. Several fields in the South East Coast Consortium (SECC) Block, Modified U(a) Block, Block 4(a), Modified U(b) Block, the Banyan Field and the Sercan Area have been developed and are producing natural gas which is sold to the National Gas Company of Trinidad and Tobago Limited and its subsidiary (NGC), and crude oil and condensate which is sold to Heritage Petroleum Company Limited. In 2019, EOG drilled and completed two net wells in Trinidad and was in the process of drilling another exploratory well at December 31, 2019. One of these wells was a successful development well, while the other well was determined to be an unsuccessful exploratory well. In addition, EOG drilled one stratigraphic exploratory well in Trinidad, which discovered commercially economic reserves.
Other International. In the Sichuan Basin, Sichuan Province, China, EOG drilled two natural gas wells in 2019 to complete the drilling program started in 2018. In 2019, EOG also completed two natural gas wells that were drilled during the 2018 drilling program. All natural gas produced from the Baijaochang Field is sold under a long-term contract to PetroChina.
EOG continues to evaluate other select crude oil and natural gas opportunities outside the United States, primarily by pursuing exploitation opportunities in countries where indigenous crude oil and natural gas reserves have been identified.
31

Capital Structure
One of management's key strategies is to maintain a strong balance sheet with a consistently below average debt-to-total capitalization ratio as compared to those in EOG's peer group. EOG's debt-to-total capitalization ratio was 19% at December 31, 2019 and 24% at December 31, 2018. As used in this calculation, total capitalization represents the sum of total current and long-term debt and total stockholders' equity.
On June 3, 2019, EOG repaid upon maturity the $900 million aggregate principal amount of its 5.625% Senior Notes due 2019.
On June 27, 2019, EOG entered into a new $2.0 billion senior unsecured Revolving Credit Agreement (New Facility) with domestic and foreign lenders (Banks). The New Facility replaced EOG's $2.0 billion senior unsecured Revolving Credit Agreement, dated as of July 21, 2015, which had a scheduled maturity date of July 21, 2020. The New Facility has a scheduled maturity date of June 27, 2024, and includes an option for EOG to extend, on up to two occasions, the term for successive one-year periods subject to certain terms and conditions. The New Facility (i) commits the Banks to provide advances up to an aggregate principal amount of $2.0 billion at any one time outstanding, with an option for EOG to request increases in the aggregate commitments to an amount not to exceed $3.0 billion, subject to certain terms and conditions, and (ii) includes a swingline subfacility and a letter of credit subfacility.
Effective January 1, 2019, EOG adopted the provisions of Accounting Standards Update (ASU) 2016-02, "Leases (Topic 842)" (ASU 2016-02). ASU 2016-02 and other related ASUs resulted in the recognition of right-of-use assets and related lease liabilities representing the obligation to make lease payments for certain lease transactions and the disclosure of additional leasing information. The adoption of ASU 2016-02 and other related ASUs resulted in a significant increase to assets and liabilities related to operating leases on the Consolidated Balance Sheet at December 31, 2019. Financial results prior to January 1, 2019, are unchanged. See Note 1 "Summary of Significant Accounting Policies" and Note 18 "Leases" to EOG's Consolidated Financial Statements in this Annual Report on Form 10-K.
During 2019, EOG funded $6.7 billion ($152 million of which was non-cash) in exploration and development and other property, plant and equipment expenditures (excluding asset retirement obligations), repaid $900 million aggregate principal amount of long-term debt, paid $588 million in dividends to common stockholders and purchased $25 million of treasury stock in connection with stock compensation plans, primarily by utilizing net cash provided from its operating activities and net proceeds of $140 million from the sale of assets.
Total anticipated 2020 capital expenditures are estimated to range from approximately $6.3 billion to $6.7 billion, excluding acquisitions and non-cash exchanges. The majority of 2020 expenditures will be focused on United States crude oil drilling activities. EOG has significant flexibility with respect to financing alternatives, including borrowings under its commercial paper program, bank borrowings, borrowings under its New Facility, joint development agreements and similar agreements and equity and debt offerings.
Management continues to believe EOG has one of the strongest prospect inventories in EOG's history. When it fits EOG's strategy, EOG will make acquisitions that bolster existing drilling programs or offer incremental exploration and/or production opportunities.
32

Results of Operations
The following review of operations for each of the three years in the period ended December 31, 2019, should be read in conjunction with the consolidated financial statements of EOG and notes thereto beginning on page F-1.
Operating Revenues and Other
During 2019, operating revenues increased $105 million, or 1%, to $17,380 million from $17,275 million in 2018. Total wellhead revenues, which are revenues generated from sales of EOG's production of crude oil and condensate, NGLs and natural gas, decreased $365 million, or 3%, to $11,581 million in 2019 from $11,946 million in 2018. Revenues from the sales of crude oil and condensate and NGLs in 2019 were approximately 90% of total wellhead revenues compared to 89% in 2018. During 2019, EOG recognized net gains on the mark-to-market of financial commodity derivative contracts of $180 million compared to net losses of $166 million in 2018. Gathering, processing and marketing revenues increased $130 million during 2019, to $5,360 million from $5,230 million in 2018. Net gains on asset dispositions of $124 million in 2019 were primarily as a result of sales of producing properties, acreage and other assets, as well as non-cash property exchanges, in New Mexico compared to net gains on asset dispositions of $175 million in 2018.
33

Wellhead volume and price statistics for the years ended December 31, 2019, 2018 and 2017 were as follows:

Year Ended December 31 |  | 2019 |  | 2018 |  | 2017
Crude Oil and Condensate Volumes (MBbld) (1) |  |  |  |  |  |
United States |  | 455.5 |  |  | 394.8 |  |  | 335.0 |
Trinidad |  | 0.6 |  |  | 0.8 |  |  | 0.9 |
Other International (2) |  | 0.1 |  |  | 4.3 |  |  | 0.8 |
Total |  | 456.2 |  |  | 399.9 |  |  | 336.7 |
Average Crude Oil and Condensate Prices ($/Bbl) (3) |  |  |  |  |  |  |  |
United States |  | $ | 57.74 |  |  | $ | 65.16 |  |  | $ | 50.91 |
Trinidad |  | 47.16 |  |  | 57.26 |  |  | 42.30 |
Other International (2) |  | 57.40 |  |  | 71.45 |  |  | 57.20 |
Composite |  | 57.72 |  |  | 65.21 |  |  | 50.91 |
Natural Gas Liquids Volumes (MBbld) (1) |  |  |  |  |  |
United States |  | 134.1 |  |  | 116.1 |  |  | 88.4 |
Other International (2) |  | — |  |  | — |  |  | — |
Total |  | 134.1 |  |  | 116.1 |  |  | 88.4 |
Average Natural Gas Liquids Prices ($/Bbl) (3) |  |  |  |  |  |  |  |
United States |  | $ | 16.03 |  |  | $ | 26.60 |  |  | $ | 22.61 |
Other International (2) |  | — |  |  | — |  |  | — |
Composite |  | 16.03 |  |  | 26.60 |  |  | 22.61 |
Natural Gas Volumes (MMcfd) (1) |  |  |  |  |  |
United States |  | 1,069 |  |  | 923 |  |  | 765 |
Trinidad |  | 260 |  |  | 266 |  |  | 313 |
Other International (2) |  | 37 |  |  | 30 |  |  | 25 |
Total |  | 1,366 |  |  | 1,219 |  |  | 1,103 |
Average Natural Gas Prices ($/Mcf) (3) |  |  |  |  |  |  |  |
United States |  | $ | 2.22 |  |  | $ | 2.88 |  |  | $ | 2.20 |
Trinidad |  | 2.72 |  |  | 2.94 |  |  | 2.38 |
Other International (2) |  | 4.44 |  |  | 4.08 |  |  | 3.89 |
Composite |  | 2.38 |  |  | 2.92 |  | (4) | 2.29 |
Crude Oil Equivalent Volumes (MBoed) (5) |  |  |  |  |  |
United States |  | 767.8 |  |  | 664.7 |  |  | 551.0 |
Trinidad |  | 44.0 |  |  | 45.1 |  |  | 53.0 |
Other International (2) |  | 6.2 |  |  | 9.4 |  |  | 4.9 |
Total |  | 818.0 |  |  | 719.2 |  |  | 608.9 |
Total MMBoe (5) |  | 298.6 |  |  | 262.5 |  |  | 222.3 |

(1) | Thousand barrels per day or million cubic feet per day, as applicable.

(2) | Other International includes EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

(3) | Dollars per barrel or per thousand cubic feet, as applicable. Excludes the impact of financial commodity derivative instruments (see Note 12 to Consolidated Financial Statements).

(4) | Includes a positive revenue adjustment of $0.44 per Mcf related to the adoption of ASU 2014-09, "Revenue From Contracts with Customers" (ASU 2014-09) (see Note 1 to the Consolidated Financial Statements). In connection with the adoption of ASU 2014-09, EOG presents natural gas processing fees related to certain processing and marketing agreements as Gathering and Processing Costs, instead of as a deduction to Natural Gas revenues.

(5) | Thousand barrels of oil equivalent per day or million barrels of oil equivalent, as applicable; includes crude oil and condensate, NGLs and natural gas. Crude oil equivalent volumes are determined using a ratio of 1.0 barrel of crude oil and condensate or NGLs to 6.0 thousand cubic feet of natural gas. MMBoe is calculated by multiplying the MBoed amount by the number of days in the period and then dividing that amount by one thousand.

34

2019 compared to 2018. Wellhead crude oil and condensate revenues in 2019 increased $96 million, or 1%, to $9,613 million from $9,517 million in 2018, due primarily to an increase in production ($1,351 million), partially offset by a lower composite average wellhead crude oil and condensate price ($1,255 million). EOG's composite wellhead crude oil and condensate price for 2019 decreased 11% to $57.72 per barrel compared to $65.21 per barrel in 2018. Wellhead crude oil and condensate production in 2019 increased 14% to 456 MBbld as compared to 400 MBbld in 2018. The increased production was primarily in the Permian Basin and the Eagle Ford.
NGLs revenues in 2019 decreased $343 million, or 30%, to $784 million from $1,127 million in 2018 primarily due to a lower composite average wellhead NGLs price ($518 million), partially offset by an increase in production ($175 million). EOG's composite average wellhead NGLs price decreased 40% to $16.03 per barrel in 2019 compared to $26.60 per barrel in 2018. NGL production in 2019 increased 16% to 134 MBbld as compared to 116 MBbld in 2018. The increased production was primarily in the Permian Basin.
Wellhead natural gas revenues in 2019 decreased $118 million, or 9%, to $1,184 million from $1,302 million in 2018, primarily due to a lower composite wellhead natural gas price ($280 million), partially offset by an increase in natural gas deliveries ($162 million). EOG's composite average wellhead natural gas price decreased 18% to $2.38 per Mcf in 2019 compared to $2.92 per Mcf in 2018. Natural gas deliveries in 2019 increased 12% to 1,366 MMcfd as compared to 1,219 MMcfd in 2018. The increase in production was primarily due to higher deliveries in the United States resulting from increased production of associated natural gas from the Permian Basin and higher natural gas volumes in South Texas.
During 2019, EOG recognized net gains on the mark-to-market of financial commodity derivative contracts of $180 million, which included net cash received for settlements of crude oil and natural gas financial derivative contracts of $231 million. During 2018, EOG recognized net losses on the mark-to-market of financial commodity derivative contracts of $166 million, which included net cash paid for settlements of crude oil and natural gas financial derivative contracts of $259 million.
Gathering, processing and marketing revenues are revenues generated from sales of third-party crude oil, NGLs and natural gas, as well as fees associated with gathering third-party natural gas and revenues from sales of EOG-owned sand. Purchases and sales of third-party crude oil and natural gas may be utilized in order to balance firm transportation capacity with production in certain areas and to utilize excess capacity at EOG-owned facilities. EOG sells sand in order to balance the timing of firm purchase agreements with completion operations and to utilize excess capacity at EOG-owned facilities. Marketing costs represent the costs to purchase third-party crude oil, natural gas and sand and the associated transportation costs, as well as costs associated with EOG-owned sand sold to third parties.
Gathering, processing and marketing revenues less marketing costs in 2019 decreased $18 million compared to 2018, primarily due to lower margins on crude oil and condensate marketing activities, partially offset by higher margins on natural gas marketing activities.
2018 compared to 2017. Wellhead crude oil and condensate revenues in 2018 increased $3,261 million, or 52%, to $9,517 million from $6,256 million in 2017, due primarily to a higher composite average wellhead crude oil and condensate price ($2,088 million) and an increase in production ($1,173 million). EOG's composite wellhead crude oil and condensate price for 2018 increased 28% to $65.21 per barrel compared to $50.91 per barrel in 2017. Wellhead crude oil and condensate production in 2018 increased 19% to 400 MBbld as compared to 337 MBbld in 2017. The increased production was primarily in the Permian Basin and the Eagle Ford.
NGLs revenues in 2018 increased $398 million, or 55%, to $1,127 million from $729 million in 2017 primarily due to an increase in production ($229 million) and a higher composite average wellhead NGLs price ($169 million). EOG's composite average wellhead NGLs price increased 18% to $26.60 per barrel in 2018 compared to $22.61 per barrel in 2017. NGLs production in 2018 increased 31% to 116 MBbld as compared to 88 MBbld in 2017. The increased production was primarily in the Permian Basin and the Eagle Ford.
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Wellhead natural gas revenues in 2018 increased $380 million, or 41%, to $1,302 million from $922 million in 2017, primarily due to a higher composite wellhead natural gas price ($282 million) and an increase in wellhead natural gas deliveries ($98 million). EOG's composite average wellhead natural gas price increased 28% to $2.92 per Mcf in 2018 compared to $2.29 per Mcf in 2017. This increase in composite wellhead natural gas prices includes a positive revenue adjustment of $0.44 per Mcf related to the adoption of ASU 2014-09. Natural gas deliveries in 2018 increased 11% to 1,219 MMcfd as compared to 1,103 MMcfd in 2017. The increase in production was primarily due to increased production in the United States (158 MMcfd), partially offset by decreased production in Trinidad (47 MMcfd). The increased production in the United States was due primarily to increased production of associated gas in the Permian Basin and Rocky Mountain area and higher volumes in the Marcellus Shale. The decrease in Trinidad was primarily attributable to higher contractual deliveries in 2017.
During 2018, EOG recognized net losses on the mark-to-market of financial commodity derivative contracts of $166 million, which included net cash paid for settlements of crude oil and natural gas financial derivative contracts of $259 million. During 2017, EOG recognized net gains on the mark-to-market of financial commodity derivative contracts of $20 million, which included net cash received from settlements of crude oil and natural gas financial derivative contracts of $7 million.
Gathering, processing and marketing revenues less marketing costs in 2018 increased $59 million compared to 2017, primarily due to higher margins on crude oil and condensate marketing activities.
Operating and Other Expenses
2019 compared to 2018. During 2019, operating expenses of $13,681 million were $875 million higher than the $12,806 million incurred during 2018. The following table presents the costs per barrel of oil equivalent (Boe) for the years ended December 31, 2019 and 2018:

| 2019 |  | 2018
Lease and Well | $ | 4.58 |  |  | $ | 4.89 |
Transportation Costs | 2.54 |  |  | 2.85 |
Depreciation, Depletion and Amortization (DD&A) - |  |  |
Oil and Gas Properties | 12.25 |  |  | 12.65 |
Other Property, Plant and Equipment | 0.31 |  |  | 0.44 |
General and Administrative (G&A) | 1.64 |  |  | 1.63 |
Net Interest Expense | 0.62 |  |  | 0.93 |
Total (1) | $ | 21.94 |  |  | $ | 23.39 |

(1) | Total excludes gathering and processing costs, exploration costs, dry hole costs, impairments, marketing costs and taxes other than income.

The primary factors impacting the cost components of per-unit rates of lease and well, transportation costs, DD&A, G&A and net interest expense for 2019 compared to 2018 are set forth below. See "Operating Revenues and Other" above for a discussion of production volumes.
Lease and well expenses include expenses for EOG-operated properties, as well as expenses billed to EOG from other operators where EOG is not the operator of a property. Lease and well expenses can be divided into the following categories: costs to operate and maintain crude oil and natural gas wells, the cost of workovers and lease and well administrative expenses. Operating and maintenance costs include, among other things, pumping services, salt water disposal, equipment repair and maintenance, compression expense, lease upkeep and fuel and power. Workovers are operations to restore or maintain production from existing wells.
Each of these categories of costs individually fluctuates from time to time as EOG attempts to maintain and increase production while maintaining efficient, safe and environmentally responsible operations. EOG continues to increase its operating activities by drilling new wells in existing and new areas. Operating and maintenance costs within these existing and new areas, as well as the costs of services charged to EOG by vendors, fluctuate over time.
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Lease and well expenses of $1,367 million in 2019 increased $84 million from $1,283 million in 2018 primarily due to higher operating and maintenance costs ($76 million) and higher lease and well administrative expenses ($29 million) in the United States, partially offset by lower operating and maintenance costs in the United Kingdom ($15 million) due to the sale of operations in the fourth quarter of 2018 and in Canada ($11 million). Lease and well expenses increased in the United States primarily due to increased operating activities resulting in increased production.
Transportation costs represent costs associated with the delivery of hydrocarbon products from the lease to a downstream point of sale. Transportation costs include transportation fees, the cost of compression (the cost of compressing natural gas to meet pipeline pressure requirements), the cost of dehydration (the cost associated with removing water from natural gas to meet pipeline requirements), gathering fees and fuel costs.
Transportation costs of $758 million in 2019 increased $11 million from $747 million in 2018 primarily due to increased transportation costs in the Permian Basin ($91 million) and South Texas ($11 million), partially offset by decreased transportation costs in the Eagle Ford ($77 million) and the Fort Worth Basin Barnett Shale ($13 million).
DD&A of the cost of proved oil and gas properties is calculated using the unit-of-production method. EOG's DD&A rate and expense are the composite of numerous individual DD&A group calculations. There are several factors that can impact EOG's composite DD&A rate and expense, such as field production profiles, drilling or acquisition of new wells, disposition of existing wells and reserve revisions (upward or downward) primarily related to well performance, economic factors and impairments. Changes to these factors may cause EOG's composite DD&A rate and expense to fluctuate from period to period. DD&A of the cost of other property, plant and equipment is generally calculated using the straight-line depreciation method over the useful lives of the assets.
DD&A expenses in 2019 increased $315 million to $3,750 million from $3,435 million in 2018. DD&A expenses associated with oil and gas properties in 2019 were $337 million higher than in 2018 primarily due to an increase in production in the United States ($489 million), partially offset by lower unit rates in the United States ($119 million) and the sale of the United Kingdom operations in the fourth quarter of 2018 ($33 million). Unit rates in the United States decreased primarily due to upward reserve revisions and reserves added at lower costs as a result of increased efficiencies.
G&A expenses of $489 million in 2019 increased $62 million from $427 million in 2018 primarily due to increased employee-related expenses ($48 million) and increased information systems costs ($8 million) resulting from expanded operations.
Net interest expense of $185 million in 2019 was $60 million lower than 2018 primarily due to repayment of the $900 million aggregate principal amount of 5.625% Senior Notes due 2019 in June 2019 ($30 million) and the $350 million aggregate principal amount of 6.875% Senior Notes due 2018 in October 2018 ($18 million) and an increase in capitalized interest ($14 million).
Gathering and processing costs represent operating and maintenance expenses and administrative expenses associated with operating EOG's gathering and processing assets as well as natural gas processing fees and certain NGLs fractionation fees paid to third parties. EOG pays third parties to process the majority of its natural gas production to extract NGLs. See Note 1 to the Consolidated Financial Statements for discussion related to EOG's adoption of ASU 2014-09.
Gathering and processing costs increased $42 million to $479 million in 2019 compared to $437 million in 2018 primarily due to increased operating costs and fees in the Permian Basin ($52 million), the Rocky Mountain area ($13 million) and South Texas ($5 million); partially offset by decreased operating costs in the United Kingdom ($33 million) due to the sale of operations in the fourth quarter of 2018.
Exploration costs of $140 million in 2019 decreased $9 million from $149 million in 2018 primarily due to decreased geological and geophysical expenditures in Trinidad ($17 million), partially offset by increased general and administrative expenses in the United States ($7 million).
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Impairments include amortization of unproved oil and gas property costs as well as impairments of proved oil and gas properties; other property, plant and equipment; and other assets. Unproved properties with acquisition costs that are not individually significant are aggregated, and the portion of such costs estimated to be nonproductive is amortized over the remaining lease term. Unproved properties with individually significant acquisition costs are reviewed individually for impairment. When circumstances indicate that a proved property may be impaired, EOG compares expected undiscounted future cash flows at a DD&A group level to the unamortized capitalized cost of the asset. If the expected undiscounted future cash flows, based on EOG's estimates of (and assumptions regarding) future crude oil and natural gas prices, operating costs, development expenditures, anticipated production from proved reserves and other relevant data, are lower than the unamortized capitalized cost, the capitalized cost is reduced to fair value. Fair value is generally calculated by using the Income Approach described in the Fair Value Measurement Topic of the Financial Accounting Standards Board's Accounting Standards Codification (ASC). In certain instances, EOG utilizes accepted offers from third-party purchasers as the basis for determining fair value.
The following table represents impairments for the years ended December 31, 2019 and 2018 (in millions):

| 2019 |  | 2018
Proved properties | $ | 207 |  |  | $ | 121 |
Unproved properties | 220 |  |  | 173 |
Other assets | 91 |  |  | 49 |
Inventories | — |  |  | 4 |
Total | $ | 518 |  |  | $ | 347 |

Impairments of proved properties were primarily due to the write-down to fair value of legacy natural gas assets in 2019 and 2018.
Taxes other than income include severance/production taxes, ad valorem/property taxes, payroll taxes, franchise taxes and other miscellaneous taxes. Severance/production taxes are generally determined based on wellhead revenues, and ad valorem/property taxes are generally determined based on the valuation of the underlying assets.
Taxes other than income in 2019 increased $28 million to $800 million (6.9% of wellhead revenues) from $772 million (6.5% of wellhead revenues) in 2018. The increase in taxes other than income was primarily due to an increase in ad valorem/property taxes ($53 million), partially offset by an increase in credits available to EOG in 2019 for state incentive severance tax rate reductions ($12 million) and a decrease in severance/production taxes ($12 million) primarily as a result of decreased wellhead revenues, all in the United States.
Other income, net, was $31 million in 2019 compared to other income, net, of $17 million in 2018. The increase of $14 million in 2019 was primarily due to an increase in interest income ($14 million) and an increase in foreign currency transaction gains ($9 million), partially offset by an increase in deferred compensation expense ($4 million).
EOG recognized an income tax provision of $810 million in 2019 compared to an income tax provision of $822 million in 2018, primarily due to decreased pretax income, partially offset by the absence of tax benefits from certain tax reform measurement-period adjustments. The net effective tax rate for 2019 increased to 23% from 19% in the prior year, primarily due to the absence of tax benefits from certain tax reform measurement-period adjustments.
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2018 compared to 2017. During 2018, operating expenses of $12,806 million were $875 million higher than the $10,282 million incurred during 2017. The following table presents the costs per barrel of oil equivalent (Boe) for the years ended December 31, 2018 and 2017:

| 2018 |  | 2017
Lease and Well | $ | 4.89 |  |  | $ | 4.70 |
Transportation Costs | 2.85 |  |  | 3.33 |
Depreciation, Depletion and Amortization (DD&A) - |  |  |
Oil and Gas Properties | 12.65 |  |  | 14.83 |
Other Property, Plant and Equipment | 0.44 |  |  | 0.51 |
General and Administrative (G&A) | 1.63 |  |  | 1.95 |
Net Interest Expense | 0.93 |  |  | 1.23 |
Total (1) | $ | 23.39 |  |  | $ | 26.55 |

(1) | Total excludes gathering and processing costs, exploration costs, dry hole costs, impairments, marketing costs and taxes other than income.

The primary factors impacting the cost components of per-unit rates of lease and well, transportation costs, DD&A, G&A and net interest expense for 2018 compared to 2017 are set forth below. See "Operating Revenues and Other" above for a discussion of production volumes.
Lease and well expenses of $1,283 million in 2018 increased $238 million from $1,045 million in 2017 primarily due to higher operating and maintenance costs ($171 million), higher workover expenditures ($44 million) and higher lease and well administrative expenses ($41 million), all in the United States, partially offset by lower operating and maintenance costs in the United Kingdom ($18 million). Lease and well expenses increased in the United States primarily due to increased operating activities resulting in increased production.
Transportation costs of $747 million in 2018 increased $7 million from $740 million in 2017 primarily due to increased transportation costs in the Permian Basin ($116 million), partially offset by decreased transportation costs in the Fort Worth Basin Barnett Shale ($52 million), the Eagle Ford ($31 million) and the Rocky Mountain area ($25 million).
DD&A expenses in 2018 increased $26 million to $3,435 million from $3,409 million in 2017. DD&A expenses associated with oil and gas properties in 2018 were $24 million higher than in 2017 primarily due to an increase in production in the United States ($647 million) and the United Kingdom ($21 million), partially offset by lower unit rates in the United States ($625 million) and a decrease in production in Trinidad ($16 million). Unit rates in the United States decreased primarily due to upward reserve revisions and reserves added at lower costs as a result of increased efficiencies.
G&A expenses of $427 million in 2018 decreased $7 million from $434 million in 2017 primarily due to decreased professional, legal and other services ($24 million); partially offset by increased employee-related expenses resulting from expanded operations ($15 million) and increased information systems costs ($10 million).
Net interest expense of $245 million in 2018 was $29 million lower than 2017 primarily due to repayment of the $600 million aggregate principal amount of 5.875% Senior Notes due 2017 in September 2017 ($25 million) and the $350 million aggregate principal amount of 6.875% Senior Notes due 2018 in October 2018 ($6 million), partially offset by a decrease in capitalized interest ($3 million).
Gathering and processing costs increased $288 million to $437 million in 2018 compared to $149 million in 2017 primarily due to the adoption of ASU 2014-09 ($204 million) and increased operating costs in the Permian Basin ($32 million), the United Kingdom ($28 million) and the Eagle Ford ($25 million).
Exploration costs of $149 million in 2018 increased $4 million from $145 million in 2017 primarily due to increased general and administrative expenses in the United States ($7 million), partially offset by decreased geological and geophysical expenditures in Trinidad ($5 million).
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The following table represents impairments for the years ended December 31, 2018 and 2017 (in millions):

| 2018 |  | 2017
Proved properties | $ | 121 |  |  | $ | 224 |
Unproved properties | 173 |  |  | 211 |
Other assets | 49 |  |  | 28 |
Inventories | 4 |  |  | — |
Total | $ | 347 |  |  | $ | 463 |

Impairments of proved properties were primarily due to the write-down to fair value of legacy natural gas assets in 2018 and 2017.
Taxes other than income in 2018 increased $227 million to $772 million (6.5% of wellhead revenues) from $545 million (6.9% of wellhead revenues) in 2017. The increase in taxes other than income was primarily due to increases in severance/production taxes ($190 million) primarily as a result of increased wellhead revenues and an increase in ad valorem/property taxes ($33 million), both in the United States.
Other income, net, was $17 million in 2018 compared to other income, net, of $9 million in 2017. The increase of $8 million in 2018 was primarily due to a decrease in deferred compensation expense ($12 million) and an increase in interest income ($4 million), partially offset by an increase in foreign currency transaction losses ($15 million).
EOG recognized an income tax provision of $822 million in 2018 compared to an income tax benefit of $1,921 million in 2017, primarily due to the absence of certain 2017 tax benefits related to the Tax Cuts and Jobs Act (TCJA) and higher pretax income. The most significant impact of the TCJA on EOG was the reduction in the statutory income tax rate from 35% to 21% which required the existing net United States federal deferred income tax liability to be remeasured resulting in the recognition of an income tax benefit in 2017 of approximately $2.2 billion. The net effective tax rate for 2018 increased to 19% from (291%) in the prior year, primarily due to the absence of the TCJA tax benefits.
Capital Resources and Liquidity
Cash Flow
The primary sources of cash for EOG during the three-year period ended December 31, 2019, were funds generated from operations and proceeds from asset sales. The primary uses of cash were funds used in operations; exploration and development expenditures; repayments of debt; dividend payments to stockholders; other property, plant and equipment expenditures; and purchases of treasury stock in connection with stock compensation plans.
2019 compared to 2018. Net cash provided by operating activities of $8,163 million in 2019 increased $394 million from $7,769 million in 2018 primarily reflecting an increase in cash received for settlements of commodity derivative contracts ($490 million), a decrease in net cash paid for income taxes ($367 million) and favorable changes in working capital and other assets and liabilities ($122 million); partially offset by a decrease in wellhead revenues ($365 million) and an increase in cash operating expenses ($202 million).
Net cash used in investing activities of $6,177 million in 2019 increased by $7 million from $6,170 million in 2018 primarily due to an increase in additions to oil and gas properties ($313 million), a decrease in proceeds from the sale of assets ($87 million) and an increase in additions to other property, plant and equipment ($33 million); partially offset by favorable changes in working capital associated with investing activities ($416 million) and a decrease in other investing activities ($10 million).
Net cash used in financing activities of $1,513 million in 2019 included repayments of long-term debt ($900 million), cash dividend payments ($588 million) and purchases of treasury stock in connection with stock compensation plans ($25 million). Cash provided by financing activities in 2019 included proceeds from stock options exercised and employee stock purchase plan activity ($18 million).
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2018 compared to 2017. Net cash provided by operating activities of $7,769 million in 2018 increased $3,504 million from $4,265 million in 2017 primarily reflecting an increase in wellhead revenues ($4,039 million), favorable changes in working capital and other assets and liabilities ($758 million) and a favorable change in the cash paid for income taxes ($113 million), partially offset by an increase in cash operating expenses ($746 million) and an unfavorable change in the net cash paid for the settlement of financial commodity derivative contracts ($266 million).
Net cash used in investing activities of $6,170 million in 2018 increased by $2,183 million from $3,987 million in 2017 primarily due to an increase in additions to oil and gas properties ($1,888 million); unfavorable changes in working capital associated with investing activities ($211 million); and an increase in additions to other property, plant and equipment ($64 million).
Net cash used in financing activities of $839 million in 2018 included cash dividend payments ($438 million), repayments of long-term debt ($350 million) and purchases of treasury stock in connection with stock compensation plans ($63 million). Cash provided by financing activities in 2018 included proceeds from stock options exercised and employee stock purchase plan activity ($21 million).
Total Expenditures
The table below sets out components of total expenditures for the years ended December 31, 2019, 2018 and 2017 (in millions):

| 2019 |  | 2018 |  | 2017
Expenditure Category |  |  |  |  |
Capital |  |  |  |  |
Exploration and Development Drilling | $ | 4,951 |  |  | $ | 4,935 |  |  | $ | 3,132 |
Facilities | 629 |  |  | 625 |  |  | 575 |
Leasehold Acquisitions (1) | 276 |  |  | 488 |  |  | 427 |
Property Acquisitions (2) | 380 |  |  | 124 |  |  | 73 |
Capitalized Interest | 38 |  |  | 24 |  |  | 27 |
Subtotal | 6,274 |  |  | 6,196 |  |  | 4,234 |
Exploration Costs | 140 |  |  | 149 |  |  | 145 |
Dry Hole Costs | 28 |  |  | 5 |  |  | 5 |
Exploration and Development Expenditures | 6,442 |  |  | 6,350 |  |  | 4,384 |
Asset Retirement Costs | 186 |  |  | 70 |  |  | 56 |
Total Exploration and Development Expenditures | 6,628 |  |  | 6,420 |  |  | 4,440 |
Other Property, Plant and Equipment (3) | 272 |  |  | 286 |  |  | 173 |
Total Expenditures | $ | 6,900 |  |  | $ | 6,706 |  |  | $ | 4,613 |

(1) | Leasehold acquisitions included $98 million, $291 million and $256 million related to non-cash property exchanges in 2019, 2018 and 2017, respectively.

(2) | Property acquisitions included $52 million, $71 million and $26 million related to non-cash property exchanges in 2019, 2018 and 2017, respectively.

(3) | Other property, plant and equipment included $49 million of non-cash additions in 2018, respectively, primarily related to a finance lease transaction in the Permian Basin.

Exploration and development expenditures of $6,442 million for 2019 were $92 million higher than the prior year. The increase was primarily due to increased property acquisitions ($256 million), increased exploration and development drilling expenditures in Trinidad ($53 million) and increased capitalized interest ($14 million), partially offset by decreased leasehold acquisitions ($212 million) and decreased exploration and development drilling expenditures in the United States ($19 million) and Other International ($19 million). The 2019 exploration and development expenditures of $6,442 million included $5,513 million in development drilling and facilities, $511 million in exploration, $380 million in property acquisitions and $38 million in capitalized interest. The 2018 exploration and development expenditures of $6,350 million included $5,546 million in development drilling and facilities, $656 million million in exploration, $124 million in property acquisitions and $24 million in capitalized interest. The 2017 exploration and development expenditures of $4,384 million included $3,661 million in development drilling and facilities, $623 million in exploration, $73 million in property acquisitions and $27 million in capitalized interest.
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The level of exploration and development expenditures, including acquisitions, will vary in future periods depending on energy market conditions and other related economic factors. EOG has significant flexibility with respect to financing alternatives and the ability to adjust its exploration and development expenditure budget as circumstances warrant. While EOG has certain continuing commitments associated with expenditure plans related to its operations, such commitments are not expected to be material when considered in relation to the total financial capacity of EOG.
Commodity Derivative Transactions
Crude Oil Derivative Contracts. Prices received by EOG for its crude oil production generally vary from U.S. New York Mercantile Exchange (NYMEX) West Texas Intermediate (WTI) prices due to adjustments for delivery location (basis) and other factors. EOG has entered into crude oil basis swap contracts in order to fix the differential between pricing in Midland, Texas, and Cushing, Oklahoma (Midland Differential). Presented below is a comprehensive summary of EOG's Midland Differential basis swap contracts through February 19, 2020. The weighted average price differential expressed in $/Bbl represents the amount of reduction to Cushing, Oklahoma, prices for the notional volumes expressed in barrels per day (Bbld) covered by the basis swap contracts.

| Midland Differential Basis Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price Differential ($/Bbl)
| 2019 |  |  |  |
| January 1, 2019 through December 31, 2019 (closed) |  | 20,000 |  |  | $ | 1.075 |

EOG has also entered into crude oil basis swap contracts in order to fix the differential between pricing in the U.S. Gulf Coast and Cushing, Oklahoma (Gulf Coast Differential). Presented below is a comprehensive summary of EOG's Gulf Coast Differential basis swap contracts through February 19, 2020. The weighted average price differential expressed in $/Bbl represents the amount of addition to Cushing, Oklahoma, prices for the notional volumes expressed in Bbld covered by the basis swap contracts.

| Gulf Coast Differential Basis Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price Differential ($/Bbl)
| 2019 |  |  |  |
| January 1, 2019 through December 31, 2019 (closed) |  | 13,000 |  |  | $ | 5.572 |

EOG has also entered into crude oil swaps to fix the differential in pricing between the NYMEX calendar month average and the physical crude oil delivery month (Roll Differential). Presented below is a comprehensive summary of EOG's Roll Differential swap contracts through February 19, 2020. The weighted average price differential expressed in $/Bbl represents the amount of addition to delivery month prices for the notional volumes expressed in Bbld covered by the swap contracts.

| Roll Differential Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price Differential ($/Bbl)
| 2020 |  |  |  |
| February 2020 (closed) |  | 10,000 |  |  | $ | 0.70 |
| March 1, 2020 through December 31, 2020 |  | 10,000 |  |  | 0.70 |

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Presented below is a comprehensive summary of EOG's crude oil price swap contracts through February 19, 2020, with notional volumes expressed in Bbld and prices expressed in $/Bbl.

| Crude Oil Price Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price ($/Bbl)
| 2019 |  |  |  |
| April 2019 (closed) |  | 25,000 |  |  | $ | 60.00 |
| May 1, 2019 through December 31, 2019 (closed) |  | 150,000 |  |  | 62.50 |
| 2020 |  |  |  |
| January 2020 (closed) |  | 200,000 |  |  | $ | 59.33 |
| February 1, 2020 through March 31, 2020 |  | 200,000 |  |  | 59.33 |
| April 1, 2020 through June 30, 2020 |  | 200,000 |  |  | 59.59 |
| July 1, 2020 through September 30, 2020 |  | 107,000 |  |  | 58.94 |

NGLs Derivative Contracts. Presented below is a comprehensive summary of EOG's Mont Belvieu propane (non-TET) price swap contracts through February 19, 2020, with notional volumes expressed in Bbld and prices expressed in $/Bbl.

| Mont Belvieu Propane Price Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price ($/Bbl)
| 2020 |  |  |  |
| January 2020 (closed) |  | 4,000 |  |  | $ | 21.34 |
| February 2020 |  | 4,000 |  |  | 21.34 |
| March 1, 2020 through December 31, 2020 |  | 25,000 |  |  | 17.92 |

Natural Gas Derivative Contracts. Presented below is a comprehensive summary of EOG's natural gas price swap contracts through February 19, 2020, with notional volumes expressed in million British thermal units (MMBtu) per day (MMBtud) and prices expressed in dollars per MMBtu ($/MMBtu).

| Natural Gas Price Swap Contracts
|  |  | Volume (MMBtud) |  | Weighted Average Price ($/MMBtu)
| 2019 |  |  |  |
| April 1, 2019 through October 31, 2019 (closed) |  | 250,000 |  |  | $ | 2.90 |

EOG has also entered into natural gas collar contracts, which establish ceiling and floor prices for the sale of notional volumes of natural gas as specified in the collar contracts. The collars require that EOG pay the difference between the ceiling price and the NYMEX Henry Hub natural gas price for the contract month (Henry Hub Index Price) in the event the Henry Hub Index Price is above the ceiling price. The collars grant EOG the right to receive the difference between the floor price and the Henry Hub Index Price in the event the Henry Hub Index Price is below the floor price. Presented below is a comprehensive summary of EOG's natural gas collar contracts through February 19, 2020, with notional volumes expressed in MMBtud and prices expressed in $/MMBtu.

| Natural Gas Collar Contracts
|  |  |  |  | Weighted Average Price ($/MMBtu)
|  |  | Volume (MMBtud) |  | Ceiling Price |  | Floor Price
| 2020 |  |  |  |  |  |
| April 1, 2020 through October 31, 2020 |  | 250,000 |  |  | $ | 2.50 |  |  | $ | 2.00 |

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Prices received by EOG for its natural gas production generally vary from NYMEX Henry Hub prices due to adjustments for delivery location (basis) and other factors. EOG has entered into natural gas basis swap contracts in order to fix the differential between pricing in the Rocky Mountain area and NYMEX Henry Hub prices (Rockies Differential). Presented below is a comprehensive summary of EOG's Rockies Differential basis swap contracts through February 19, 2020. The weighted average price differential expressed in $/MMBtu represents the amount of reduction to NYMEX Henry Hub prices for the notional volumes expressed in MMBtud covered by the basis swap contracts.

| Rockies Differential Basis Swap Contracts
|  |  | Volume (MMBtud) |  | Weighted Average Price Differential ($/MMBtu)
| 2020 |  |  |  |
| January 1, 2020 through February 29, 2020 (closed) |  | 30,000 |  |  | $ | 0.55 |
| March 1, 2020 through December 31, 2020 |  | 30,000 |  |  | 0.55 |

EOG has also entered into natural gas basis swap contracts in order to fix the differential between pricing at the Houston Ship Channel (HSC) and NYMEX Henry Hub prices (HSC Differential). Presented below is a comprehensive summary of EOG's HSC Differential basis swap contracts through February 19, 2020. The weighted average price differential expressed in $/MMBtu represents the amount of reduction to NYMEX Henry Hub prices for the notional volumes expressed in MMBtud covered by the basis swap contracts.

| HSC Differential Basis Swap Contracts
|  |  | Volume (MMBtud) |  | Weighted Average Price Differential ($/MMBtu)
| 2020 |  |  |  |
| January 1, 2020 through February 29, 2020 (closed) |  | 60,000 |  |  | $ | 0.05 |
| March 1, 2020 through December 31, 2020 |  | 60,000 |  |  | 0.05 |

EOG has also entered into natural gas basis swap contracts in order to fix the differential between pricing at the Waha Hub in West Texas and NYMEX Henry Hub prices (Waha Differential). Presented below is a comprehensive summary of EOG's Waha Differential basis swap contracts through February 19, 2020. The weighted average price differential expressed in $/MMBtu represents the amount of reduction to NYMEX Henry Hub prices for the notional volumes expressed in MMBtud covered by the basis swap contracts.

| Waha Differential Basis Swap Contracts
|  |  | Volume (MMBtud) |  | Weighted Average Price Differential ($/MMBtu)
| 2020 |  |  |  |
| January 1, 2020 through February 29, 2020 (closed) |  | 50,000 |  |  | $ | 1.40 |
| March 1, 2020 through December 31, 2020 |  | 50,000 |  |  | 1.40 |

Financing
EOG's debt-to-total capitalization ratio was 19% at December 31, 2019, compared to 24% at December 31, 2018. As used in this calculation, total capitalization represents the sum of total current and long-term debt and total stockholders' equity.
At December 31, 2019 and 2018, respectively, EOG had outstanding $5,140 million and $6,040 million aggregate principal amount of senior notes which had estimated fair values of $5,452 million and $6,027 million, respectively. The estimated fair value of debt was based upon quoted market prices and, where such prices were not available, other observable inputs regarding interest rates available to EOG at year-end. EOG's debt is at fixed interest rates. While changes in interest rates affect the fair value of EOG's senior notes, such changes do not expose EOG to material fluctuations in earnings or cash flow.
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During 2019, EOG funded its capital program primarily by utilizing cash provided by operating activities and proceeds from asset sales. While EOG maintains a $2.0 billion revolving credit facility to back its commercial paper program, there were no borrowings outstanding at any time during 2019 and the amount outstanding at year-end was zero. EOG considers the availability of its $2.0 billion senior unsecured revolving credit facility, as described in Note 2 to Consolidated Financial Statements, to be sufficient to meet its ongoing operating needs.
Contractual Obligations
The following table summarizes EOG's contractual obligations at December 31, 2019 (in millions):

Contractual Obligations (1) (2) |  | Total |  | 2020 |  | 2021-2022 |  | 2023-2024 |  | 2025 & Beyond
Current and Long-Term Debt |  | $ | 5,140 |  |  | $ | 1,000 |  |  | $ | 750 |  |  | $ | 1,250 |  |  | $ | 2,140 |
Interest Payments on Long-Term Debt |  | 1,059 |  |  | 169 |  |  | 258 |  |  | 193 |  |  | 439 |
Finance Leases (3) |  | 64 |  |  | 15 |  |  | 27 |  |  | 16 |  |  | 6 |
Operating Leases (3) |  | 850 |  |  | 390 |  |  | 335 |  |  | 85 |  |  | 40 |
Leases Effective, Not Commenced (3) |  | 699 |  |  | 80 |  |  | 132 |  |  | 134 |  |  | 353 |
Transportation and Storage Service Commitments (4) |  | 6,034 |  |  | 914 |  |  | 1,632 |  |  | 1,130 |  |  | 2,358 |
Purchase and Service Obligations |  | 1,222 |  |  | 399 |  |  | 498 |  |  | 152 |  |  | 173 |
Total Contractual Obligations |  | $ | 15,068 |  |  | $ | 2,967 |  |  | $ | 3,632 |  |  | $ | 2,960 |  |  | $ | 5,509 |

(1) | This table does not include the liability for unrecognized tax benefits, EOG's pension or postretirement benefit obligations or liability for dismantlement, abandonment and asset retirement obligations (see Notes 6, 7 and 15, respectively, to Consolidated Financial Statements). These amounts are excluded because they are subject to estimates and the timing of settlement is unknown.

(2) | This table does not include the liability for commitments to purchase fixed quantities of crude oil and natural gas. The amounts are excluded because they are variable and based on future commodity prices. At December 31, 2019, EOG is committed to purchase 1.8 MMBbls of crude oil and 5.5 Bcf of natural gas in 2020 and 1.4 MMBls of crude oil in 2021.

(3) | For more information on contracts that meet the definition of a lease under ASU 2016-02, see Note 18 to Consolidated Financial Statements.

(4) | Amounts exclude transportation and storage service commitments that meet the definition of a lease. Amounts shown are based on current transportation and storage rates and the foreign currency exchange rates used to convert Canadian dollars into United States dollars at December 31, 2019. Management does not believe that any future changes in these rates before the expiration dates of these commitments will have a material adverse effect on the financial condition or results of operations of EOG.

Off-Balance Sheet Arrangements
EOG does not participate in financial transactions that generate relationships with unconsolidated entities or financial partnerships. Such entities or partnerships, often referred to as variable interest entities (VIE) or special purpose entities (SPE), are generally established for the purpose of facilitating off-balance sheet arrangements or other limited purposes. EOG was not involved in any unconsolidated VIE or SPE financial transactions or any other "off-balance sheet arrangement" (as defined in Item 303(a)(4)(ii) of Regulation S-K) during any of the periods covered by this report and currently has no intention of participating in any such transaction or arrangement in the foreseeable future.
Foreign Currency Exchange Rate Risk
During 2019, EOG was exposed to foreign currency exchange rate risk inherent in its operations in foreign countries, including Trinidad, China and Canada. EOG continues to monitor the foreign currency exchange rates of countries in which it is currently conducting business and may implement measures to protect against foreign currency exchange rate risk.
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Outlook
Pricing. Crude oil and natural gas prices have been volatile, and this volatility is expected to continue. As a result of the many uncertainties associated with the world political environment, worldwide supplies of, and demand for, crude oil and condensate, NGLs and natural gas, the availabilities of other worldwide energy supplies and the relative competitive relationships of the various energy sources in the view of consumers, EOG is unable to predict what changes may occur in crude oil and condensate, NGLs, natural gas, ammonia and methanol prices in the future. The market price of crude oil and condensate, NGLs and natural gas in 2020 will impact the amount of cash generated from EOG's operating activities, which will in turn impact EOG's financial position. As of February 19, 2020, the average 2020 NYMEX crude oil and natural gas prices were $53.75 per barrel and $2.12 per MMBtu, respectively, representing a decrease of 6% for crude oil and a decrease of 20% for natural gas from the average NYMEX prices in 2019. See ITEM 1A, Risk Factors.
Based on EOG's tax position, EOG's price sensitivity (exclusive of basis swaps) in 2020 for each $1.00 per barrel increase or decrease in wellhead crude oil and condensate price, combined with the estimated change in NGL price, is approximately $117 million for net income and $152 million for pretax cash flows from operating activities. Based on EOG's tax position and the portion of EOG's anticipated natural gas volumes for 2020 for which prices have not been determined under long-term marketing contracts, EOG's price sensitivity for each $0.10 per Mcf increase or decrease in wellhead natural gas price is approximately $31 million for net income and $40 million for pretax cash flows from operating activities. For information regarding EOG's crude oil and natural gas financial commodity derivative contracts through February 19, 2020, see "Derivative Transactions" above.
Capital. EOG plans to continue to focus a substantial portion of its exploration and development expenditures in its major producing areas in the United States. In particular, EOG will be focused on United States crude oil drilling activity in its Delaware Basin, Eagle Ford and Rocky Mountain area where it generates its highest rates-of-return. To further enhance the economics of these plays, EOG expects to continue to improve well performance and lower drilling and completion costs through efficiency gains and lower service costs.
The total anticipated 2020 capital expenditures of approximately $6.3 billion to $6.7 billion, excluding acquisitions and non-cash exchanges, is structured to maintain EOG's strategy of capital discipline by funding its exploration, development and exploitation activities primarily from available internally generated cash flows and cash on hand. EOG has significant flexibility with respect to financing alternatives, including borrowings under its commercial paper program, bank borrowings, borrowings under its $2.0 billion senior unsecured revolving credit facility and equity and debt offerings.
Operations. In 2020, both total production and total crude oil production are expected to increase from 2019 levels. In 2020, EOG expects to continue to focus on reducing operating costs through efficiency improvements.
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Summary of Critical Accounting Policies
EOG prepares its financial statements and the accompanying notes in conformity with accounting principles generally accepted in the United States, which require management to make estimates and assumptions about future events that affect the reported amounts in the financial statements and the accompanying notes. EOG identifies certain accounting policies as critical based on, among other things, their impact on the portrayal of EOG's financial condition, results of operations or liquidity, and the degree of difficulty, subjectivity and complexity in their application. Critical accounting policies cover accounting matters that are inherently uncertain because the future resolution of such matters is unknown. Management routinely discusses the development, selection and disclosure of each of the critical accounting policies. Following is a discussion of EOG's most critical accounting policies:
Proved Oil and Gas Reserves
EOG's engineers estimate proved oil and gas reserves in accordance with United States Securities and Exchange Commission (SEC) regulations, which directly impact financial accounting estimates, including depreciation, depletion and amortization and impairments of proved properties and related assets. Proved reserves represent estimated quantities of crude oil and condensate, NGLs and natural gas that geological and engineering data demonstrate, with reasonable certainty, to be recoverable in future years from known reservoirs under economic and operating conditions existing at the time the estimates were made. The process of estimating quantities of proved oil and gas reserves is complex, requiring significant subjective decisions in the evaluation of available geological, engineering and economic data for each reservoir. The data for a given reservoir may also change substantially over time as a result of numerous factors including, but not limited to, additional development activity, evolving production history and continual reassessment of the viability of production under varying economic conditions. Consequently, material revisions (upward or downward) to existing reserve estimates may occur from time to time. For related discussion, see ITEM 1A, Risk Factors, and "Supplemental Information to Consolidated Financial Statements."
Oil and Gas Exploration Costs
EOG accounts for its crude oil and natural gas exploration and production activities under the successful efforts method of accounting. Oil and gas exploration costs, other than the costs of drilling exploratory wells, are expensed as incurred. The costs of drilling exploratory wells are capitalized pending determination of whether EOG has discovered proved commercial reserves. If proved commercial reserves are not discovered, such drilling costs are expensed. In some circumstances, it may be uncertain whether proved commercial reserves have been discovered when drilling has been completed. Such exploratory well drilling costs may continue to be capitalized if the reserve quantity is sufficient to justify its completion as a producing well and sufficient progress in assessing the reserves and the economic and operating viability of the project is being made. Costs to develop proved reserves, including the costs of all development wells and related equipment used in the production of crude oil and natural gas, are capitalized.
Depreciation, Depletion and Amortization for Oil and Gas Properties
The quantities of estimated proved oil and gas reserves are a significant component of EOG's calculation of depreciation, depletion and amortization expense, and revisions in such estimates may alter the rate of future expense. Holding all other factors constant, if reserves were revised upward or downward, earnings would increase or decrease, respectively.
Depreciation, depletion and amortization of the cost of proved oil and gas properties is calculated using the unit-of-production method. The reserve base used to calculate depreciation, depletion and amortization for leasehold acquisition costs and the cost to acquire proved properties is the sum of proved developed reserves and proved undeveloped reserves. With respect to lease and well equipment costs, which include development costs and successful exploration drilling costs, the reserve base includes only proved developed reserves. Estimated future dismantlement, restoration and abandonment costs, net of salvage values, are taken into account.
Oil and gas properties are grouped in accordance with the provisions of the Extractive Industries - Oil and Gas Topic of the ASC. The basis for grouping is a reasonable aggregation of properties with a common geological structural feature or stratigraphic condition, such as a reservoir or field.
Depreciation, depletion and amortization rates are updated quarterly to reflect the addition of capital costs, reserve revisions (upwards or downwards) and additions, property acquisitions and/or property dispositions and impairments.
Depreciation and amortization of other property, plant and equipment is calculated on a straight-line basis over the estimated useful life of the asset.
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Impairments
Oil and gas lease acquisition costs are capitalized when incurred. Unproved properties with acquisition costs that are not individually significant are aggregated, and the portion of such costs estimated to be nonproductive is amortized over the remaining lease term. Unproved properties with individually significant acquisition costs are reviewed individually for impairment. If the unproved properties are determined to be productive, the appropriate related costs are transferred to proved oil and gas properties. Lease rentals are expensed as incurred.
When circumstances indicate that proved oil and gas properties may be impaired, EOG compares expected undiscounted future cash flows at a depreciation, depletion and amortization group level to the unamortized capitalized cost of the asset. If the expected undiscounted future cash flows, based on EOG's estimates of (and assumptions regarding) future crude oil and natural gas prices, operating costs, development expenditures, anticipated production from proved reserves and other relevant data, are lower than the unamortized capitalized cost, the capitalized cost is reduced to fair value. Fair value is generally calculated using the Income Approach described in the Fair Value Measurement Topic of the ASC. In certain instances, EOG utilizes accepted offers from third-party purchasers as the basis for determining fair value. Estimates of undiscounted future cash flows require significant judgment, and the assumptions used in preparing such estimates are inherently uncertain. In addition, such assumptions and estimates are reasonably likely to change in the future.
Crude oil, NGLs and natural gas prices have exhibited significant volatility in the past, and EOG expects that volatility to continue in the future. During the five years ended December 31, 2019, WTI crude oil spot prices have fluctuated from approximately $26.19 per barrel to $77.41 per barrel, and Henry Hub natural gas spot prices have ranged from approximately $1.49 per MMBtu to $6.24 per MMBtu. Market prices for NGLs are influenced by the production composition of ethane, propane, butane and natural gasoline and the respective market pricing for each component. EOG uses the five-year NYMEX futures strip for WTI crude oil and Henry Hub natural gas (in each case as of the applicable balance sheet date) as a basis to estimate future crude oil and natural gas prices. EOG's proved reserves estimates, including the timing of future production, are also subject to significant assumptions and judgment, and are frequently revised (upwards and downwards) as more information becomes available. Proved reserves are estimated using a trailing 12-month average price, in accordance with SEC rules. In the future, if any combination of crude oil prices, natural gas prices, actual production or operating costs diverge negatively from EOG's current estimates, impairment charges and downward adjustments to our estimated proved reserves may be necessary.
Income Taxes
Income taxes are accounted for using the asset and liability approach. Under this approach, deferred tax assets and liabilities are recognized based on anticipated future tax consequences attributable to differences between financial statement carrying amounts of assets and liabilities and their respective tax basis. EOG assesses the realizability of deferred tax assets and recognizes valuation allowances as appropriate. Significant assumptions used in estimating future taxable income include future oil and gas prices and levels of capital reinvestment. Changes in such assumptions or changes in tax laws and regulations could materially affect the recognized amounts of valuation allowances.
Stock-Based Compensation
In accounting for stock-based compensation, judgments and estimates are made regarding, among other things, the appropriate valuation methodology to follow in valuing stock compensation awards and the related inputs required by those valuation methodologies. Assumptions regarding expected volatility of EOG's common stock, the level of risk-free interest rates, expected dividend yields on EOG's common stock, the expected term of the awards, expected volatility in the price of shares of EOG's peer companies and other valuation inputs are subject to change. Any such changes could result in different valuations and thus impact the amount of stock-based compensation expense recognized on the Consolidated Statements of Income and Comprehensive Income.
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Information Regarding Forward-Looking Statements
This Annual Report on Form 10-K includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements, other than statements of historical facts, including, among others, statements and projections regarding EOG's future financial position, operations, performance, business strategy, returns, budgets, reserves, levels of production, capital expenditures, costs and asset sales, statements regarding future commodity prices and statements regarding the plans and objectives of EOG's management for future operations, are forward-looking statements. EOG typically uses words such as "expect," "anticipate," "estimate," "project," "strategy," "intend," "plan," "target," “aims,” "goal," "may," "will," "should" and "believe" or the negative of those terms or other variations or comparable terminology to identify its forward-looking statements. In particular, statements, express or implied, concerning EOG's future operating results and returns or EOG's ability to replace or increase reserves, increase production, generate returns, replace or increase drilling locations, reduce or otherwise control operating costs and capital expenditures, generate cash flows, pay down or refinance indebtedness or pay and/or increase dividends are forward-looking statements. Forward-looking statements are not guarantees of performance. Although EOG believes the expectations reflected in its forward-looking statements are reasonable and are based on reasonable assumptions, no assurance can be given that these assumptions are accurate or that any of these expectations will be achieved (in full or at all) or will prove to have been correct. Moreover, EOG's forward-looking statements may be affected by known, unknown or currently unforeseen risks, events or circumstances that may be outside EOG's control. Important factors that could cause EOG's actual results to differ materially from the expectations reflected in EOG's forward-looking statements include, among others:

• | the timing, extent and duration of changes in prices for, supplies of, and demand for, crude oil and condensate, natural gas liquids, natural gas and related commodities;

• | the extent to which EOG is successful in its efforts to acquire or discover additional reserves;

• | the extent to which EOG is successful in its efforts to (i) economically develop its acreage in, (ii) produce reserves and achieve anticipated production levels and rates of return from, (iii) decrease or otherwise control its drilling, completion, operating and capital costs related to, and (iv) maximize reserve recovery from, its existing and future crude oil and natural gas exploration and development projects and associated potential and existing drilling locations;

• | the extent to which EOG is successful in its efforts to market its crude oil and condensate, natural gas liquids, natural gas and related commodity production;

• | security threats, including cybersecurity threats and disruptions to our business and operations from breaches of our information technology systems, physical breaches of our facilities and other infrastructure or breaches of the information technology systems, facilities and infrastructure of third parties with which we transact business;

• | the availability, proximity and capacity of, and costs associated with, appropriate gathering, processing, compression, storage, transportation and refining facilities;

• | the availability, cost, terms and timing of issuance or execution of, and competition for, mineral licenses and leases and governmental and other permits and rights-of-way, and EOG’s ability to retain mineral licenses and leases;

• | the impact of, and changes in, government policies, laws and regulations, including tax laws and regulations; climate change and other environmental, health and safety laws and regulations relating to air emissions, disposal of produced water, drilling fluids and other wastes, hydraulic fracturing and access to and use of water; laws and regulations imposing conditions or restrictions on drilling and completion operations and on the transportation of crude oil and natural gas; laws and regulations with respect to derivatives and hedging activities; and laws and regulations with respect to the import and export of crude oil, natural gas and related commodities;

• | EOG's ability to effectively integrate acquired crude oil and natural gas properties into its operations, fully identify existing and potential problems with respect to such properties and accurately estimate reserves, production and drilling, completing and operating costs with respect to such properties;

• | the extent to which EOG's third-party-operated crude oil and natural gas properties are operated successfully and economically;

• | competition in the oil and gas exploration and production industry for the acquisition of licenses, leases and properties, employees and other personnel, facilities, equipment, materials and services;

• | the availability and cost of employees and other personnel, facilities, equipment, materials (such as water and tubulars) and services;

• | the accuracy of reserve estimates, which by their nature involve the exercise of professional judgment and may therefore be imprecise;

• | weather, including its impact on crude oil and natural gas demand, and weather-related delays in drilling and in the installation and operation (by EOG or third parties) of production, gathering, processing, refining, compression, storage and transportation facilities;

• | the ability of EOG's customers and other contractual counterparties to satisfy their obligations to EOG and, related thereto, to access the credit and capital markets to obtain financing needed to satisfy their obligations to EOG;

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• | EOG's ability to access the commercial paper market and other credit and capital markets to obtain financing on terms it deems acceptable, if at all, and to otherwise satisfy its capital expenditure requirements;

• | the extent to which EOG is successful in its completion of planned asset dispositions;

• | the extent and effect of any hedging activities engaged in by EOG;

• | the timing and extent of changes in foreign currency exchange rates, interest rates, inflation rates, global and domestic financial market conditions and global and domestic general economic conditions;

• | geopolitical factors and political conditions and developments around the world (such as the imposition of tariffs or trade or other economic sanctions, political instability and armed conflict), including in the areas in which EOG operates;

• | the use of competing energy sources and the development of alternative energy sources;

• | the extent to which EOG incurs uninsured losses and liabilities or losses and liabilities in excess of its insurance coverage;

• | acts of war and terrorism and responses to these acts; and

• | the other factors described under ITEM 1A, Risk Factors, on pages 13 through 23 of this Annual Report on Form 10-K and any updates to those factors set forth in EOG's subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K.

In light of these risks, uncertainties and assumptions, the events anticipated by EOG's forward-looking statements may not occur, and, if any of such events do, we may not have anticipated the timing of their occurrence or the duration or extent of their impact on our actual results. Accordingly, you should not place any undue reliance on any of EOG's forward-looking statements. EOG's forward-looking statements speak only as of the date made, and EOG undertakes no obligation, other than as required by applicable law, to update or revise its forward-looking statements, whether as a result of new information, subsequent events, anticipated or unanticipated circumstances or otherwise.
ITEM 7A. Quantitative and Qualitative Disclosures About Market Risk
The information required by this Item is incorporated by reference from Item 7 of this report, specifically the information set forth under the captions "Derivative Transactions," "Financing," "Foreign Currency Exchange Rate Risk" and "Outlook" in "Management's Discussion and Analysis of Financial Condition and Results of Operations - Capital Resources and Liquidity."
ITEM 8. Financial Statements and Supplementary Data
The information required by this Item is included in this report as set forth in the "Index to Financial Statements" on page F-1 and is incorporated by reference herein.
ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
None.
ITEM 9A. Controls and Procedures
Disclosure Controls and Procedures. EOG's management, with the participation of EOG's principal executive officer and principal financial officer, evaluated the effectiveness of EOG's disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended (Exchange Act)) as of December 31, 2019. EOG's disclosure controls and procedures are designed to provide reasonable assurance that information that is required to be disclosed in the reports EOG files or submits under the Exchange Act is accumulated and communicated to EOG's management, as appropriate, to allow timely decisions regarding required disclosure and is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the United States Securities and Exchange Commission. Based on that evaluation, EOG's principal executive officer and principal financial officer have concluded that EOG's disclosure controls and procedures were effective as of December 31, 2019.
Management's Annual Report on Internal Control over Financial Reporting. EOG's management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) promulgated under the Exchange Act). Even an effective system of internal control over financial reporting, no matter how well designed, has inherent limitations, including the possibility of human error, circumvention of controls or overriding of controls and, therefore, can provide only reasonable assurance with respect to reliable financial reporting. Furthermore, the effectiveness of a system of internal control over financial reporting in future periods can change as conditions change.
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EOG's management assessed the effectiveness of EOG's internal control over financial reporting as of December 31, 2019. In making this assessment, it used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control - Integrated Framework (2013). Based on this assessment and such criteria, EOG's management believes that EOG's internal control over financial reporting was effective as of December 31, 2019. See also "Management's Responsibility for Financial Reporting" appearing on page F-2 of this report, which is incorporated herein by reference.
The report of EOG's independent registered public accounting firm relating to the consolidated financial statements and effectiveness of internal control over financial reporting is set forth on page F-3 of this report.
There were no changes in EOG's internal control over financial reporting that occurred during the quarter ended December 31, 2019, that have materially affected, or are reasonably likely to materially affect, EOG's internal control over financial reporting.
ITEM 9B. Other Information
None.
PART III
ITEM 10. Directors, Executive Officers and Corporate Governance
The information required by this Item is incorporated by reference from (i) EOG's Definitive Proxy Statement with respect to its 2020 Annual Meeting of Stockholders to be filed not later than April 29, 2020 and (ii) Item 1 of this report, specifically the information therein set forth under the caption "Information About Our Executive Officers."
Pursuant to Rule 303A.10 of the New York Stock Exchange and Item 406 of Regulation S-K promulgated under the Securities Exchange Act of 1934, as amended, EOG has adopted a Code of Business Conduct and Ethics for Directors, Officers and Employees (Code of Conduct) that applies to all EOG directors, officers and employees, including EOG's principal executive officer, principal financial officer and principal accounting officer. EOG has also adopted a Code of Ethics for Senior Financial Officers (Code of Ethics) that, along with EOG's Code of Conduct, applies to EOG's principal executive officer, principal financial officer, principal accounting officer and controllers.
You can access the Code of Conduct and Code of Ethics on the "Governance" page under "Investors" on EOG's website at www.eogresources.com, and any EOG stockholder who so requests may obtain a printed copy of the Code of Conduct and Code of Ethics by submitting a written request to EOG's Corporate Secretary.
EOG intends to disclose any amendments to the Code of Conduct or Code of Ethics, and any waivers with respect to the Code of Conduct or Code of Ethics granted to EOG's principal executive officer, principal financial officer, principal accounting officer, any of our controllers or any of our other employees performing similar functions, on its website at www.eogresources.com within four business days of the amendment or waiver. In such case, the disclosure regarding the amendment or waiver will remain available on EOG's website for at least 12 months after the initial disclosure. There have been no waivers granted with respect to EOG's Code of Conduct or Code of Ethics.
ITEM 11. Executive Compensation
The information required by this Item is incorporated by reference from EOG's Definitive Proxy Statement with respect to its 2020 Annual Meeting of Stockholders to be filed not later than April 29, 2020. The Compensation Committee Report and related information incorporated by reference herein shall not be deemed "soliciting material" or to be "filed" with the United States Securities and Exchange Commission, nor shall such information be incorporated by reference into any future filing under the Securities Act of 1933, as amended, or Securities Exchange Act of 1934, as amended, except to the extent that EOG specifically incorporates such information by reference into such a filing.
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ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
The information required by this Item with respect to security ownership of certain beneficial owners and management is incorporated by reference from EOG's Definitive Proxy Statement with respect to its 2020 Annual Meeting of Stockholders to be filed not later than April 29, 2020.
Equity Compensation Plan Information
Stock Plans Approved by EOG Stockholders. EOG's stockholders approved the EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (2008 Plan) at the 2008 Annual Meeting of Stockholders in May 2008. At the 2010 Annual Meeting of Stockholders in April 2010 (2010 Annual Meeting), an amendment to the 2008 Plan was approved, pursuant to which the number of shares of common stock available for future grants of stock options, stock-settled stock appreciation rights (SARs), restricted stock, restricted stock units, performance units and other stock-based awards under the 2008 Plan was increased by an additional 13.8 million shares, to an aggregate maximum of 25.8 million shares plus shares underlying forfeited or canceled grants under the prior stock plans referenced in the 2008 Plan document. At the 2013 Annual Meeting of Stockholders in May 2013, EOG's stockholders approved the Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Amended and Restated 2008 Plan). As more fully discussed in the Amended and Restated 2008 Plan document, the Amended and Restated 2008 Plan, among other things, authorizes an additional 31.0 million shares of EOG common stock for grant under the plan and extends the expiration date of the plan to May 2023. Under the Amended and Restated 2008 Plan, grants may be made to employees and non-employee members of EOG's Board.
Also at the 2010 Annual Meeting, an amendment to the EOG Resources, Inc. Employee Stock Purchase Plan (ESPP) was approved to increase the shares available for grant by 2.0 million shares. The ESPP was originally approved by EOG's stockholders in 2001, and would have expired on July 1, 2011. The amendment also extended the term of the ESPP to December 31, 2019, unless terminated earlier by its terms or by EOG. At the 2018 Annual Meeting of Stockholders in April 2018, stockholders approved an amendment and restatement of the ESPP to (among other changes) increase the number of shares available for grant by 2.5 million shares and further extend the term of the ESPP to December 31, 2027, unless terminated earlier by its terms or by EOG.
Stock Plans Not Approved by EOG Stockholders. In December 2008, the Board approved the amendment and continuation of the 1996 Deferral Plan as the "EOG Resources, Inc. 409A Deferred Compensation Plan" (Deferral Plan). Under the Deferral Plan (as subsequently amended), payment of up to 50% of base salary and 100% of annual cash bonus, director's fees, vestings of restricted stock units granted to non-employee directors (and dividends credited thereon) under the 2008 Plan and 401(k) refunds (as defined in the Deferral Plan) may be deferred into a phantom stock account. In the phantom stock account, deferrals are treated as if shares of EOG common stock were purchased at the closing stock price on the date of deferral. Dividends are credited quarterly and treated as if reinvested in EOG common stock. Payment of the phantom stock account is made in actual shares of EOG common stock in accordance with the Deferral Plan and the individual's deferral election. A total of 540,000 shares of EOG common stock have been authorized by the Board and registered for issuance under the Deferral Plan. As of December 31, 2019, 332,248 phantom shares had been issued. The Deferral Plan is currently EOG's only stock plan that has not been approved by EOG's stockholders.
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The following table sets forth data for EOG's equity compensation plans aggregated by the various plans approved by EOG's stockholders and those plans not approved by EOG's stockholders, in each case as of December 31, 2019.

Plan Category |  | (a) Number of Securities to be Issued Upon Exercise of Outstanding Options, Warrants and Rights |  | (b) Weighted-Average Exercise Price of Outstanding Options, Warrants and Rights (1) |  | (c) Number of Securities Remaining Available for Future Issuance Under Equity Compensation Plans (Excluding Securities Reflected in Column (a)) |
Equity Compensation Plans Approved by EOG Stockholders |  | 10,967,766 |  | (2) | $ | 94.53 |  |  | 9,116,617 |  | (3)
Equity Compensation Plans Not Approved by EOG Stockholders |  | 224,225 |  | (4) | N/A |  |  | 207,752 |  | (5)
Total |  | 11,191,991 |  |  | $ | 94.53 |  |  | 9,324,369 |  |

(1) | The weighted-average exercise price is calculated based solely on the exercise prices of the outstanding stock option and SAR grants and does not reflect shares that will be issued upon the vesting of outstanding restricted stock unit and performance unit grants, or Deferral Plan phantom shares, all of which have no exercise price.

(2) | Amount includes 974,484 outstanding restricted stock units, for which shares of EOG common stock will be issued, on a one-for-one basis, upon the vesting of such grants. Amount also includes 598,147 outstanding performance units and assumes, for purposes of this table, (i) the application of a 100% performance multiple upon the completion of each of the remaining performance periods in respect of such performance unit grants and (ii) accordingly, the issuance, on a one-for-one basis, of an aggregate 598,147 shares of EOG common stock upon the vesting of such grants. As more fully discussed in Note 7 to Consolidated Financial Statements, upon the application of the relevant performance multiple at the completion of each of the remaining performance periods in respect of such grants, (A) a minimum of 102,382 and a maximum of 1,093,912 performance units could be outstanding and (B) accordingly, a minimum of 102,382 and a maximum of 1,093,912 shares of EOG common stock could be issued upon the vesting of such grants.

(3) | Consists of (i) 6,844,409 shares remaining available for issuance under the Amended and Restated 2008 Plan and (ii) 2,272,208 shares remaining available for purchase under the ESPP. Pursuant to the fungible share design of the Amended and Restated 2008 Plan, each share issued as a SAR or stock option under the Amended and Restated 2008 Plan counts as 1.0 share against the aggregate plan share limit, and each share issued as a "full value award" (i.e., as restricted stock, restricted stock units or performance units) counts as 2.45 shares against the aggregate plan share limit. Thus, from the 6,844,409 shares remaining available for issuance under the Amended and Restated 2008 Plan, (i) the maximum number of shares we could issue as SAR and stock option awards is 6,844,409 (i.e., if all shares remaining available for issuance under the Amended and Restated 2008 Plan are issued as SAR and stock option awards) and (ii) the maximum number of shares we could issue as full value awards is 2,793,636 (i.e., if all shares remaining available for issuance under the Amended and Restated 2008 Plan are issued as full value awards).

(4) | Consists of shares of EOG common stock to be issued in accordance with the Deferral Plan and participant deferral elections (i.e., in respect of the 224,225 phantom shares issued and outstanding under the Deferral Plan as of December 31, 2019).

(5) | Represents phantom shares that remain available for issuance under the Deferral Plan.

ITEM 13. Certain Relationships and Related Transactions, and Director Independence
The information required by this Item is incorporated by reference from EOG's Definitive Proxy Statement with respect to its 2020 Annual Meeting of Stockholders to be filed not later than April 29, 2020.
ITEM 14. Principal Accounting Fees and Services
The information required by this Item is incorporated by reference from EOG's Definitive Proxy Statement with respect to its 2020 Annual Meeting of Stockholders to be filed not later than April 29, 2020.
53

PART IV
ITEM 15. Exhibits, Financial Statement Schedules
(a)(1) and (a)(2) Financial Statements and Financial Statement Schedule
See "Index to Financial Statements" set forth on page F-1.
(a)(3), (b) Exhibits
See pages E-1 through E-7 for a listing of the exhibits.
ITEM 16. Form 10-K Summary
None.
54

EOG RESOURCES, INC.
INDEX TO FINANCIAL STATEMENTS

| Page
Consolidated Financial Statements: |
Management's Responsibility for Financial Reporting | F-2
Report of Independent Registered Public Accounting Firm | F-3
Consolidated Statements of Income and Comprehensive Income for Each of the Three Years in the Period Ended December 31, 2019 | F-6
Consolidated Balance Sheets - December 31, 2019 and 2018 | F-7
Consolidated Statements of Stockholders' Equity for Each of the Three Years in the Period Ended December 31, 2019 | F-8
Consolidated Statements of Cash Flows for Each of the Three Years in the Period Ended December 31, 2019 | F-9
Notes to Consolidated Financial Statements | F-10
Supplemental Information to Consolidated Financial Statements | F-39

F-1

MANAGEMENT'S RESPONSIBILITY FOR FINANCIAL REPORTING
The following consolidated financial statements of EOG Resources, Inc., together with its subsidiaries (collectively, EOG), were prepared by management, which is responsible for the integrity, objectivity and fair presentation of such financial statements. The statements have been prepared in conformity with generally accepted accounting principles in the United States of America and, accordingly, include some amounts that are based on the best estimates and judgments of management.
EOG's management is also responsible for establishing and maintaining adequate internal control over financial reporting as well as designing and implementing programs and controls to prevent and detect fraud. The system of internal control of EOG is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles in the United States of America. This system consists of 1) entity level controls, including written policies and guidelines relating to the ethical conduct of business affairs, 2) general computer controls and 3) process controls over initiating, authorizing, recording, processing and reporting transactions. Even an effective internal control system, no matter how well designed, has inherent limitations, including the possibility of human error, circumvention of controls or overriding of controls and, therefore, can provide only reasonable assurance with respect to reliable financial reporting. Furthermore, the effectiveness of a system of internal control over financial reporting in future periods can change as conditions change.
The adequacy of EOG's financial controls and the accounting principles employed by EOG in its financial reporting are under the general oversight of the Audit Committee of the Board of Directors. No member of this committee is an officer or employee of EOG. Moreover, EOG's independent registered public accounting firm and internal auditors have full, free, separate and direct access to the Audit Committee and meet with the committee periodically to discuss accounting, auditing and financial reporting matters.
EOG's management assessed the effectiveness of EOG's internal control over financial reporting as of December 31, 2019. In making this assessment, EOG used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control - Integrated Framework (2013). These criteria cover the control environment, risk assessment process, control activities, information and communication systems, and monitoring activities. Based on this assessment and those criteria, management believes that EOG maintained effective internal control over financial reporting as of December 31, 2019.
Deloitte & Touche LLP, independent registered public accounting firm, was engaged to audit the consolidated financial statements of EOG and audit EOG's internal control over financial reporting and issue a report thereon. In the conduct of the audits, Deloitte & Touche LLP was given unrestricted access to all financial records and related data, including all minutes of meetings of stockholders, the Board of Directors and committees of the Board of Directors. Management believes that all representations made to Deloitte & Touche LLP during the audits were valid and appropriate. Their audits were made in accordance with the standards of the Public Company Accounting Oversight Board (United States). Their report appears on page F-3.

WILLIAM R. THOMAS |  | TIMOTHY K. DRIGGERS
Chairman of the Board and |  | Executive Vice President and Chief
Chief Executive Officer |  | Financial Officer
Houston, Texas |  |
February 27, 2020 |  |

F-2

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the stockholders and the Board of Directors of
EOG Resources, Inc.
Houston, Texas
Opinions on the Financial Statements and Internal Control over Financial Reporting
We have audited the accompanying consolidated balance sheets of EOG Resources, Inc. and subsidiaries (the "Company") as of December 31, 2019 and 2018, the related consolidated statements of income and comprehensive income, stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2019, and the related notes (collectively referred to as the “financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).
In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2019 and 2018, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2019, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2019, based on the criteria established in Internal Control - Integrated Framework (2013) issued by COSO.
Basis for Opinions
The Company's management is responsible for these financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on these financial statements and an opinion on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.
Our audits of the financial statements included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures to respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements.
Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements.
Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.
Definition and Limitations of Internal Control over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
F-3

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
Critical Audit Matter
The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that was communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.
Proved Oil and Gas Properties and Depletion and Impairment - Crude Oil and Condensate, NGLs, and Natural Gas Reserves -Refer to Notes 1 and 14 to the financial statements
Critical Audit Matter Description
The Company’s proved oil and natural gas properties are depleted using the units of production method and are evaluated for impairment by comparison to the net cash flows of the underlying proved oil and natural gas reserves. The development of the Company’s oil and natural gas reserve volumes and the related future cash flows requires management to make significant estimates and scheduling assumptions related to the five-year development plan for proved undeveloped reserves, future oil and natural gas prices, and future well costs. The Company’s reserve engineers estimate oil and natural gas quantities using these estimates and assumptions and engineering data. Changes in these assumptions could have a significant impact on the amount of depletion and any proved oil and gas impairment. Proved oil and gas properties were $24 billion as of December 31, 2019, and depletion and proved property impairment were $3.75 billion and $207 million, respectively, for the year then ended.
Given the significant judgments made by management, performing audit procedures to evaluate the Company’s proved oil and natural gas reserve quantities and the related net cash flows including management’s estimates and assumptions related to the five-year development plan, future oil and natural gas prices and future well costs, required a high degree of auditor judgment and an increased extent of effort, including the need to involve our fair value specialists.
How the Critical Audit Matter Was Addressed in the Audit
Our audit procedures related to management’s estimates and assumptions related to oil and natural gas reserve quantities and estimates of future net cash flows included the following, among others:

• | We tested the effectiveness of controls over the Company’s estimation of proved oil and natural gas reserve quantities and related future net cash flows, including controls relating to the five-year development plan, future oil and natural gas prices and future well costs.

• | We evaluated the reasonableness of management’s five-year development plan by comparing the forecasts to:

◦ | Historical conversions of proved undeveloped reserves.

◦ | Internal communications to management and the Board of Directors.

◦ | Permits and approval for expenditures.

◦ | Analyst and industry reports for the Company and certain of its peer companies.

• | With the assistance of our fair value specialists, we evaluated management’s estimated future oil and natural gas prices by:

◦ | Understanding the methodology used by management for development of the future prices and comparing the estimated prices to an independently determined range of prices.

◦ | Comparing management’s estimates to published forward pricing indices and third-party industry sources.

◦ | Evaluating the historical realized price differentials incorporated in the future oil and natural gas prices.

• | We evaluated the reasonableness of capital expenditures (well costs) by comparing to comparable historical wells drilled and analyst and industry reports.

F-4

• | We evaluated the Company’s oil and natural gas reserve volumes by:

◦ | Comparing the Company’s reserve volumes to historical production volumes.

◦ | Comparing the Company’s reserve volumes to those independently developed by the independent petroleum consultants.

◦ | Evaluating the reasonableness of the production volume decline curves.

◦ | Understanding the experience, qualifications, and objectivity of the Company’s reserve engineers and the independent petroleum consultants.

/s/ DELOITTE & TOUCHE LLP
Houston, Texas
February 27, 2020
We have served as the Company's auditor since 2002.
F-5

EOG RESOURCES, INC.
CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
(In Thousands, Except Per Share Data)

Year Ended December 31 | 2019 |  | 2018 |  | 2017
Operating Revenues and Other |  |  |  |  |
Crude Oil and Condensate | $ | 9,612,532 |  |  | $ | 9,517,440 |  |  | $ | 6,256,396 |
Natural Gas Liquids | 784,818 |  |  | 1,127,510 |  |  | 729,561 |
Natural Gas | 1,184,095 |  |  | 1,301,537 |  |  | 921,934 |
Gains (Losses) on Mark-to-Market Commodity Derivative Contracts | 180,275 |  |  | (165,640 | ) |  | 19,828 |
Gathering, Processing and Marketing | 5,360,282 |  |  | 5,230,355 |  |  | 3,298,087 |
Gains (Losses) on Asset Dispositions, Net | 123,613 |  |  | 174,562 |  |  | (99,096 | )
Other, Net | 134,358 |  |  | 89,635 |  |  | 81,610 |
Total | 17,379,973 |  |  | 17,275,399 |  |  | 11,208,320 |
Operating Expenses |  |  |  |  |  |  |  |
Lease and Well | 1,366,993 |  |  | 1,282,678 |  |  | 1,044,847 |
Transportation Costs | 758,300 |  |  | 746,876 |  |  | 740,352 |
Gathering and Processing Costs | 479,102 |  |  | 436,973 |  |  | 148,775 |
Exploration Costs | 139,881 |  |  | 148,999 |  |  | 145,342 |
Dry Hole Costs | 28,001 |  |  | 5,405 |  |  | 4,609 |
Impairments | 517,896 |  |  | 347,021 |  |  | 479,240 |
Marketing Costs | 5,351,524 |  |  | 5,203,243 |  |  | 3,330,237 |
Depreciation, Depletion and Amortization | 3,749,704 |  |  | 3,435,408 |  |  | 3,409,387 |
General and Administrative | 489,397 |  |  | 426,969 |  |  | 434,467 |
Taxes Other Than Income | 800,164 |  |  | 772,481 |  |  | 544,662 |
Total | 13,680,962 |  |  | 12,806,053 |  |  | 10,281,918 |
Operating Income | 3,699,011 |  |  | 4,469,346 |  |  | 926,402 |
Other Income, Net | 31,385 |  |  | 16,704 |  |  | 9,152 |
Income Before Interest Expense and Income Taxes | 3,730,396 |  |  | 4,486,050 |  |  | 935,554 |
Interest Expense |  |  |  |  |  |  |  |
Incurred | 223,421 |  |  | 269,549 |  |  | 301,801 |
Capitalized | (38,292 | ) |  | (24,497 | ) |  | (27,429 | )
Net Interest Expense | 185,129 |  |  | 245,052 |  |  | 274,372 |
Income Before Income Taxes | 3,545,267 |  |  | 4,240,998 |  |  | 661,182 |
Income Tax Provision (Benefit) | 810,357 |  |  | 821,958 |  |  | (1,921,397 | )
Net Income | $ | 2,734,910 |  |  | $ | 3,419,040 |  |  | $ | 2,582,579 |
Net Income Per Share |  |  |  |  |  |  |  |
Basic | $ | 4.73 |  |  | $ | 5.93 |  |  | $ | 4.49 |
Diluted | $ | 4.71 |  |  | $ | 5.89 |  |  | $ | 4.46 |
Average Number of Common Shares |  |  |  |  |  |  |  |
Basic | 577,670 |  |  | 576,578 |  |  | 574,620 |
Diluted | 580,777 |  |  | 580,441 |  |  | 578,693 |
Comprehensive Income |  |  |  |  |  |  |  |
Net Income | $ | 2,734,910 |  |  | $ | 3,419,040 |  |  | $ | 2,582,579 |
Other Comprehensive Income (Loss) |  |  |  |  |  |  |  |
Foreign Currency Translation Adjustments | (2,883 | ) |  | 16,816 |  |  | 2,799 |
Other, Net of Tax | (678 | ) |  | 1,123 |  |  | (3,086 | )
Other Comprehensive Income (Loss) | (3,561 | ) |  | 17,939 |  |  | (287 | )
Comprehensive Income | $ | 2,731,349 |  |  | $ | 3,436,979 |  |  | $ | 2,582,292 |

The accompanying notes are an integral part of these consolidated financial statements.
F-6

EOG RESOURCES, INC.
CONSOLIDATED BALANCE SHEETS
(In Thousands, Except Share Data)

At December 31 | 2019 |  | 2018
ASSETS
Current Assets |  |  |
Cash and Cash Equivalents | $ | 2,027,972 |  |  | $ | 1,555,634 |
Accounts Receivable, Net | 2,001,658 |  |  | 1,915,215 |
Inventories | 767,297 |  |  | 859,359 |
Assets from Price Risk Management Activities | 1,299 |  |  | 23,806 |
Income Taxes Receivable | 151,665 |  |  | 427,909 |
Other | 323,448 |  |  | 275,467 |
Total | 5,273,339 |  |  | 5,057,390 |
Property, Plant and Equipment |  |  |  |  |
Oil and Gas Properties (Successful Efforts Method) | 62,830,415 |  |  | 57,330,016 |
Other Property, Plant and Equipment | 4,472,246 |  |  | 4,220,665 |
Total Property, Plant and Equipment | 67,302,661 |  |  | 61,550,681 |
Less: Accumulated Depreciation, Depletion and Amortization | (36,938,066 | ) |  | (33,475,162 | )
Total Property, Plant and Equipment, Net | 30,364,595 |  |  | 28,075,519 |
Deferred Income Taxes | 2,363 |  |  | 777 |
Other Assets | 1,484,311 |  |  | 800,788 |
Total Assets | $ | 37,124,608 |  |  | $ | 33,934,474 |
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities |  |  |  |  |
Accounts Payable | $ | 2,429,127 |  |  | $ | 2,239,850 |
Accrued Taxes Payable | 254,850 |  |  | 214,726 |
Dividends Payable | 166,273 |  |  | 126,971 |
Liabilities from Price Risk Management Activities | 20,194 |  |  | — |
Current Portion of Long-Term Debt | 1,014,524 |  |  | 913,093 |
Current Portion of Operating Lease Liabilities | 369,365 |  |  | — |
Other | 232,655 |  |  | 233,724 |
Total | 4,486,988 |  |  | 3,728,364 |
Long-Term Debt | 4,160,919 |  |  | 5,170,169 |
Other Liabilities | 1,789,884 |  |  | 1,258,355 |
Deferred Income Taxes | 5,046,101 |  |  | 4,413,398 |
Commitments and Contingencies (Note 8) |  |  |  |  |
Stockholders' Equity |  |  |  |  |
Common Stock, $0.01 Par, 1,280,000,000 Shares Authorized and 582,213,016 Shares and 580,408,117 Shares Issued at December 31, 2019 and 2018, respectively | 205,822 |  |  | 205,804 |
Additional Paid in Capital | 5,817,475 |  |  | 5,658,794 |
Accumulated Other Comprehensive Loss | (4,652 | ) |  | (1,358 | )
Retained Earnings | 15,648,604 |  |  | 13,543,130 |
Common Stock Held in Treasury, 298,820 Shares and 385,042 Shares at December 31, 2019 and 2018, respectively | (26,533 | ) |  | (42,182 | )
Total Stockholders' Equity | 21,640,716 |  |  | 19,364,188 |
Total Liabilities and Stockholders' Equity | $ | 37,124,608 |  |  | $ | 33,934,474 |

The accompanying notes are an integral part of these consolidated financial statements.
F-7

EOG RESOURCES, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(In Thousands, Except Per Share Data)

| Common Stock |  | Additional Paid In Capital |  | Accumulated Other Comprehensive Income (Loss) |  | Retained Earnings |  | Common Stock Held In Treasury |  | Total Stockholders' Equity
Balance at December 31, 2016 | $ | 205,770 |  |  | $ | 5,420,385 |  |  | $ | (19,010 | ) |  | $ | 8,398,118 |  |  | $ | (23,682 | ) |  | $ | 13,981,581 |
Net Income | — |  |  | — |  |  | — |  |  | 2,582,579 |  |  | — |  |  | 2,582,579 |
Common Stock Issued Under Stock Plans | 7 |  |  | 7,082 |  |  | — |  |  | — |  |  | — |  |  | 7,089 |
Common Stock Dividends Declared, $0.67 Per Share | — |  |  | — |  |  | — |  |  | (387,164 | ) |  | — |  |  | (387,164 | )
Other Comprehensive Loss | — |  |  | — |  |  | (287 | ) |  | — |  |  | — |  |  | (287 | )
Change in Treasury Stock - Stock Compensation Plans, Net | — |  |  | (27,348 | ) |  | — |  |  | — |  |  | (9,395 | ) |  | (36,743 | )
Restricted Stock and Restricted Stock Units, Net | 11 |  |  | 2,552 |  |  | — |  |  | — |  |  | (2,563 | ) |  | — |
Stock-Based Compensation Expenses | — |  |  | 133,849 |  |  | — |  |  | — |  |  | — |  |  | 133,849 |
Treasury Stock Issued as Compensation | — |  |  | 27 |  |  | — |  |  | — |  |  | 2,342 |  |  | 2,369 |
Balance at December 31, 2017 | 205,788 |  |  | 5,536,547 |  |  | (19,297 | ) |  | 10,593,533 |  |  | (33,298 | ) |  | 16,283,273 |
Net Income | — |  |  | — |  |  | — |  |  | 3,419,040 |  |  | — |  |  | 3,419,040 |
Common Stock Issued Under Stock Plans | 8 |  |  | 5,612 |  |  | — |  |  | — |  |  | — |  |  | 5,620 |
Common Stock Dividends Declared, $0.81 Per Share | — |  |  | — |  |  | — |  |  | (469,443 | ) |  | — |  |  | (469,443 | )
Other Comprehensive Income | — |  |  | — |  |  | 17,939 |  |  | — |  |  | — |  |  | 17,939 |
Change in Treasury Stock - Stock Compensation Plans, Net | — |  |  | (35,118 | ) |  | — |  |  | — |  |  | (13,336 | ) |  | (48,454 | )
Restricted Stock and Restricted Stock Units, Net | 8 |  |  | (3,891 | ) |  | — |  |  | — |  |  | 3,883 |  |  | — |
Stock-Based Compensation Expenses | — |  |  | 155,337 |  |  | — |  |  | — |  |  | — |  |  | 155,337 |
Treasury Stock Issued as Compensation | — |  |  | 307 |  |  | — |  |  | — |  |  | 569 |  |  | 876 |
Balance at December 31, 2018 | 205,804 |  |  | 5,658,794 |  |  | (1,358 | ) |  | 13,543,130 |  |  | (42,182 | ) |  | 19,364,188 |
Net Income | — |  |  | — |  |  | — |  |  | 2,734,910 |  |  | — |  |  | 2,734,910 |
Common Stock Issued Under Stock Plans | 1 |  |  | (9 | ) |  | — |  |  | — |  |  | — |  |  | (8 | )
Common Stock Dividends Declared, $1.0825 Per Share | — |  |  | — |  |  | — |  |  | (629,169 | ) |  | — |  |  | (629,169 | )
Other Comprehensive Loss | — |  |  | — |  |  | (3,561 | ) |  | — |  |  | — |  |  | (3,561 | )
Change in Treasury Stock - Stock Compensation Plans, Net | — |  |  | (10,637 | ) |  | — |  |  | — |  |  | 3,784 |  |  | (6,853 | )
Restricted Stock and Restricted Stock Units, Net | 17 |  |  | (4,566 | ) |  | — |  |  | — |  |  | 4,549 |  |  | — |
Stock-Based Compensation Expenses | — |  |  | 174,738 |  |  | — |  |  | — |  |  | — |  |  | 174,738 |
Treasury Stock Issued as Compensation | — |  |  | (845 | ) |  | — |  |  | — |  |  | 7,316 |  |  | 6,471 |
Cumulative Effect of Accounting Changes | — |  |  | — |  |  | 267 |  |  | (267 | ) |  | — |  |  | — |
Balance at December 31, 2019 | $ | 205,822 |  |  | $ | 5,817,475 |  |  | $ | (4,652 | ) |  | $ | 15,648,604 |  |  | $ | (26,533 | ) |  | $ | 21,640,716 |

The accompanying notes are an integral part of these consolidated financial statements.
F-8

EOG RESOURCES, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(In Thousands)

Year Ended December 31 | 2019 |  | 2018 |  | 2017
Cash Flows from Operating Activities |  |  |  |  |
Reconciliation of Net Income to Net Cash Provided by Operating Activities: |  |  |  |  |
Net Income | $ | 2,734,910 |  |  | $ | 3,419,040 |  |  | $ | 2,582,579 |
Items Not Requiring (Providing) Cash |  |  |  |  |  |  |  |
Depreciation, Depletion and Amortization | 3,749,704 |  |  | 3,435,408 |  |  | 3,409,387 |
Impairments | 517,896 |  |  | 347,021 |  |  | 479,240 |
Stock-Based Compensation Expenses | 174,738 |  |  | 155,337 |  |  | 133,849 |
Deferred Income Taxes | 631,658 |  |  | 894,156 |  |  | (1,473,872 | )
(Gains) Losses on Asset Dispositions, Net | (123,613 | ) |  | (174,562 | ) |  | 99,096 |
Other, Net | 4,496 |  |  | 7,066 |  |  | 6,546 |
Dry Hole Costs | 28,001 |  |  | 5,405 |  |  | 4,609 |
Mark-to-Market Commodity Derivative Contracts |  |  |  |  |  |  |  |
Total (Gains) Losses | (180,275 | ) |  | 165,640 |  |  | (19,828 | )
Net Cash Received from (Payments for) Settlements of Commodity Derivative Contracts | 231,229 |  |  | (258,906 | ) |  | 7,438 |
Other, Net | 962 |  |  | 3,108 |  |  | 1,204 |
Changes in Components of Working Capital and Other Assets and Liabilities |  |  |  |  |  |  |  |
Accounts Receivable | (91,792 | ) |  | (368,180 | ) |  | (392,131 | )
Inventories | 90,284 |  |  | (395,408 | ) |  | (174,548 | )
Accounts Payable | 168,539 |  |  | 439,347 |  |  | 324,192 |
Accrued Taxes Payable | 40,122 |  |  | (92,461 | ) |  | (63,937 | )
Other Assets | 358,001 |  |  | (125,435 | ) |  | (658,609 | )
Other Liabilities | (56,619 | ) |  | 10,949 |  |  | (89,871 | )
Changes in Components of Working Capital Associated with Investing and Financing Activities | (115,061 | ) |  | 301,083 |  |  | 89,992 |
Net Cash Provided by Operating Activities | 8,163,180 |  |  | 7,768,608 |  |  | 4,265,336 |
Investing Cash Flows |  |  |  |  |  |  |  |
Additions to Oil and Gas Properties | (6,151,885 | ) |  | (5,839,294 | ) |  | (3,950,918 | )
Additions to Other Property, Plant and Equipment | (270,641 | ) |  | (237,181 | ) |  | (173,324 | )
Proceeds from Sales of Assets | 140,292 |  |  | 227,446 |  |  | 226,768 |
Other Investing Activities | (10,000 | ) |  | (19,993 | ) |  | — |
Changes in Components of Working Capital Associated with Investing Activities | 115,061 |  |  | (301,140 | ) |  | (89,935 | )
Net Cash Used in Investing Activities | (6,177,173 | ) |  | (6,170,162 | ) |  | (3,987,409 | )
Financing Cash Flows |  |  |  |  |  |  |  |
Long-Term Debt Repayments | (900,000 | ) |  | (350,000 | ) |  | (600,000 | )
Dividends Paid | (588,200 | ) |  | (438,045 | ) |  | (386,531 | )
Treasury Stock Purchased | (25,152 | ) |  | (63,456 | ) |  | (63,408 | )
Proceeds from Stock Options Exercised and Employee Stock Purchase Plan | 17,946 |  |  | 20,560 |  |  | 20,840 |
Debt Issuance Costs | (5,016 | ) |  | — |  |  | — |
Repayment of Finance Lease Obligation | (12,899 | ) |  | (8,219 | ) |  | (6,555 | )
Changes in Components of Working Capital Associated with Financing Activities | — |  |  | 57 |  |  | (57 | )
Net Cash Used in Financing Activities | (1,513,321 | ) |  | (839,103 | ) |  | (1,035,711 | )
Effect of Exchange Rate Changes on Cash | (348 | ) |  | (37,937 | ) |  | (7,883 | )
Increase (Decrease) in Cash and Cash Equivalents | 472,338 |  |  | 721,406 |  |  | (765,667 | )
Cash and Cash Equivalents at Beginning of Year | 1,555,634 |  |  | 834,228 |  |  | 1,599,895 |
Cash and Cash Equivalents at End of Year | $ | 2,027,972 |  |  | $ | 1,555,634 |  |  | $ | 834,228 |

The accompanying notes are an integral part of these consolidated financial statements.
F-9

EOG RESOURCES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
1. Summary of Significant Accounting Policies
Principles of Consolidation. The consolidated financial statements of EOG Resources, Inc. (EOG) include the accounts of all domestic and foreign subsidiaries. Investments in unconsolidated affiliates, in which EOG is able to exercise significant influence, are accounted for using the equity method. All intercompany accounts and transactions have been eliminated.
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Financial Instruments. EOG's financial instruments consist of cash and cash equivalents, commodity derivative contracts, accounts receivable, accounts payable and current and long-term debt. The carrying values of cash and cash equivalents, commodity derivative contracts, accounts receivable and accounts payable approximate fair value (see Notes 2 and 12).
Cash and Cash Equivalents. EOG records as cash equivalents all highly liquid short-term investments with original maturities of three months or less.
Oil and Gas Operations. EOG accounts for its crude oil and natural gas exploration and production activities under the successful efforts method of accounting.
Oil and gas lease acquisition costs are capitalized when incurred. Unproved properties with acquisition costs that are not individually significant are aggregated, and the portion of such costs estimated to be nonproductive is amortized over the remaining lease term. Unproved properties with individually significant acquisition costs are reviewed individually for impairment. If the unproved properties are determined to be productive, the appropriate related costs are transferred to proved oil and gas properties. Lease rentals are expensed as incurred.
Oil and gas exploration costs, other than the costs of drilling exploratory wells, are expensed as incurred. The costs of drilling exploratory wells are capitalized pending determination of whether EOG has discovered commercial quantities of proved reserves. If commercial quantities of proved reserves are not discovered, such drilling costs are expensed. In some circumstances, it may be uncertain whether commercial quantities of proved reserves have been discovered when drilling has been completed. Such exploratory well drilling costs may continue to be capitalized if the reserve quantity is sufficient to justify its completion as a producing well and sufficient progress in assessing the reserves and the economic and operating viability of the project is being made (see Note 16). Costs to develop proved reserves, including the costs of all development wells and related equipment used in the production of crude oil and natural gas, are capitalized.
Depreciation, depletion and amortization of the cost of proved oil and gas properties is calculated using the unit-of-production method. The reserve base used to calculate depreciation, depletion and amortization for leasehold acquisition costs and the cost to acquire proved properties is the sum of proved developed reserves and proved undeveloped reserves. With respect to lease and well equipment costs, which include development costs and successful exploration drilling costs, the reserve base includes only proved developed reserves. Estimated future dismantlement, restoration and abandonment costs, net of salvage values, are taken into account.
Oil and gas properties are grouped in accordance with the provisions of the Extractive Industries - Oil and Gas Topic of the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC). The basis for grouping is a reasonable aggregation of properties with a common geological structural feature or stratigraphic condition, such as a reservoir or field.
Amortization rates are updated quarterly to reflect: 1) the addition of capital costs, 2) reserve revisions (upwards or downwards) and additions, 3) property acquisitions and/or property dispositions and 4) impairments.
F-10

When circumstances indicate that proved oil and gas properties may be impaired, EOG compares expected undiscounted future cash flows at a depreciation, depletion and amortization group level to the unamortized capitalized cost of the asset. If the expected undiscounted future cash flows, based on EOG's estimate of (and assumptions regarding) future crude oil and natural gas prices, operating costs, development expenditures, anticipated production from proved reserves and other relevant data, are lower than the unamortized capitalized cost, the capitalized cost is reduced to fair value. Fair value is generally calculated using the Income Approach described in the Fair Value Measurement Topic of the ASC. In certain instances, EOG utilizes accepted offers from third-party purchasers as the basis for determining fair value.
Inventories, consisting primarily of tubular goods, materials for completion operations and well equipment held for use in the exploration for, and development and production of, crude oil, natural gas liquids (NGLs) and natural gas reserves, are carried at the lower of cost and net realizable value with adjustments made, as appropriate, to recognize any reductions in value.
Revenue Recognition. Effective January 1, 2018, EOG adopted the provisions of Accounting Standards Update (ASU) 2014-09, "Revenue From Contracts With Customers" (ASU 2014-09). ASU 2014-09 and other related ASUs require entities to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. EOG elected to adopt ASU 2014-09 using the modified retrospective approach, which required EOG to recognize in retained earnings the cumulative effect at the date of adoption for all existing contracts with customers which were not substantially complete as of January 1, 2018. There was no impact to retained earnings upon adoption of ASU 2014-09.
EOG presents disaggregated revenues by type of commodity within its Consolidated Statements of Income and Comprehensive Income and by geographic areas defined as operating segments. See Note 11.
In connection with the adoption of ASU 2014-09, EOG presents natural gas processing fees relating to certain processing and marketing agreements within its United States segment as Gathering and Processing Costs, instead of as a deduction to Revenues within its Consolidated Statements of Income and Comprehensive Income. There was no impact to operating income, net income or cash flows resulting from changes to the presentation of natural gas processing fees. The impacts of the adoption of ASU 2014-09 for the year ended December 31, 2018, were as follows (in thousands):

| As Reported |  | Amounts Without Adoption of ASU 2014-09 |  | Effect of Change
Operating Revenues and Other |  |  |  |  |
Crude Oil and Condensate | $ | 9,517,440 |  |  | $ | 9,517,440 |  |  | $ | — |
Natural Gas Liquids | 1,127,510 |  |  | 1,121,237 |  |  | 6,273 |
Natural Gas | 1,301,537 |  |  | 1,104,095 |  |  | 197,442 |
Gathering, Processing and Marketing | 5,230,355 |  |  | 5,211,136 |  |  | 19,219 |
Total Operating Revenues and Other | 17,275,399 |  |  | 17,052,465 |  |  | 222,934 |
Operating Expenses |  |  |  |  |
Gathering and Processing Costs | 436,973 |  |  | 233,258 |  |  | 203,715 |
Marketing Costs | 5,203,243 |  |  | 5,184,024 |  |  | 19,219 |
Total Operating Expenses | 12,806,053 |  |  | 12,583,119 |  |  | 222,934 |
Operating Income | 4,469,346 |  |  | 4,469,346 |  |  | — |

Revenues are recognized for the sale of crude oil and condensate, NGLs and natural gas at the point control of the product is transferred to the customer, typically when production is delivered and title or risk of loss transfers to the customer. Arrangements for such sales are evidenced by signed contracts with prices typically based on stated market indices, with certain adjustments for product quality and geographic location. As EOG typically invoices customers shortly after performance obligations have been fulfilled, contract assets and contract liabilities are not recognized. The balances of accounts receivable from contracts with customers on January 1, 2019 and December 31, 2019, were $1,460 million and $1,619 million, respectively, and are included in Accounts Receivable, Net on the Consolidated Balance Sheets. Losses incurred on receivables from contracts with customers are infrequent and have been immaterial.
F-11

Crude Oil and Condensate. EOG sells its crude oil and condensate production at the wellhead or further downstream at a contractually-specified delivery point. Revenue is recognized when control transfers to the customer based on contract terms which reflect prevailing market prices. Any costs incurred prior to the transfer of control, such as gathering and transportation, are recognized as Operating Expenses.
Natural Gas Liquids. EOG delivers certain of its natural gas production to either EOG-owned processing facilities or third-party processing facilities, where extraction of NGLs occurs. For EOG-owned facilities, revenue is recognized after processing upon transfer of NGLs to a customer. For third-party facilities, extracted NGLs are sold to the owner of the processing facility at the tailgate, or EOG takes possession and sells the extracted NGLs at the tailgate or exercises its option to sell further downstream to various customers. Under typical arrangements for third-party facilities, revenue is recognized after processing upon the transfer of control of the NGLs, either at the tailgate of the processing plant or further downstream. EOG recognizes revenues based on contract terms which reflect prevailing market prices, with processing fees recognized as Gathering and Processing Costs.
Natural Gas. EOG sells its natural gas production either at the wellhead or further downstream at a contractually-specified delivery point. In connection with the extraction of NGLs, EOG sells residue gas under separate agreements. Typically, EOG takes possession of the natural gas at the tailgate of the processing facility and sells it at the tailgate or further downstream. In each case, EOG recognizes revenues when control transfers to the customer, based on contract terms which reflect prevailing market prices.
Gathering, Processing and Marketing. Gathering, processing and marketing revenues represent sales of third-party crude oil and condensate, NGLs and natural gas, as well as fees associated with gathering and processing third-party natural gas and revenues from sales of EOG-owned sand. EOG evaluates whether it is the principal or agent under these transactions. As control of the underlying commodity is transferred to EOG prior to the gathering, processing and marketing activities, EOG considers itself the principal of these arrangements. Accordingly, EOG recognizes these transactions on a gross basis. Purchases of third-party commodities are recorded as Marketing Costs, with sales of third-party commodities and fees received for gathering and processing recorded as Gathering, Processing and Marketing revenues.
Other Property, Plant and Equipment. Other property, plant and equipment consists of gathering and processing assets, compressors, buildings and leasehold improvements, crude-by-rail assets, sand mine and sand processing assets, computer hardware and software, vehicles, and furniture and fixtures. Other property, plant and equipment is generally depreciated on a straight-line basis over the estimated useful lives of the property, plant and equipment, which range from 3 years to 45 years.
Capitalized Interest Costs. Interest costs have been capitalized as a part of the historical cost of unproved oil and gas properties. The amount capitalized is an allocation of the interest cost incurred during the reporting period. Capitalized interest is computed only during the exploration and development phases and ceases once production begins. The interest rate used for capitalization purposes is based on the interest rates on EOG's outstanding borrowings. The capitalization of interest is excluded on significant acquisitions of unproved oil and gas properties financed through non-interest-bearing instruments, such as the issuance of shares of Common Stock, or through non-cash property exchanges.
Accounting for Risk Management Activities. Derivative instruments are recorded on the balance sheet as either an asset or liability measured at fair value, and changes in the derivative's fair value are recognized currently in earnings unless specific hedge accounting criteria are met. During the three-year period ended December 31, 2019, EOG elected not to designate any of its financial commodity derivative instruments as accounting hedges and, accordingly, changes in the fair value of these outstanding derivative instruments are recognized as gains or losses in the period of change. The gains or losses are recorded as Gains (Losses) on Mark-to-Market Commodity Derivative Contracts on the Consolidated Statements of Income and Comprehensive Income. The related cash flow impact of settled contracts is reflected as cash flows from operating activities. EOG employs net presentation of derivative assets and liabilities for financial reporting purposes when such assets and liabilities are with the same counterparty and subject to a master netting arrangement. See Note 12.
Income Taxes. Income taxes are accounted for using the asset and liability approach. Under this approach, deferred tax assets and liabilities are recognized based on anticipated future tax consequences attributable to differences between financial statement carrying amounts of assets and liabilities and their respective tax basis. EOG assesses the realizability of deferred tax assets and recognizes valuation allowances as appropriate. See Note 6.
F-12

Foreign Currency Translation. The United States dollar is the functional currency for all of EOG's consolidated subsidiaries except for its Canadian subsidiaries, for which the functional currency is the Canadian dollar, and its United Kingdom subsidiary (which was sold in the fourth quarter of 2018), for which the functional currency was the British pound. For subsidiaries whose functional currency is deemed to be other than the United States dollar, asset and liability accounts are translated at year-end exchange rates and revenues and expenses are translated at average exchange rates prevailing during the year. Translation adjustments are included in Accumulated Other Comprehensive Loss on the Consolidated Balance Sheets. Any gains or losses on transactions or monetary assets or liabilities in currencies other than the functional currency are included in net income in the current period. See Notes 4 and 17.
Net Income Per Share. Basic net income per share is computed on the basis of the weighted-average number of common shares outstanding during the period. Diluted net income per share is computed based upon the weighted-average number of common shares outstanding during the period plus the assumed issuance of common shares for all potentially dilutive securities. See Note 9.
Stock-Based Compensation. EOG measures the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award. See Note 7.
Leases. Effective January 1, 2019, EOG adopted the provisions of ASU 2016-02, "Leases (Topic 842)" (ASU 2016-02). ASU 2016-02 and other related ASUs require that lessees recognize a right-of-use (ROU) asset and related lease liability, representing the obligation to make lease payments for certain lease transactions, on the Consolidated Balance Sheets and disclose additional leasing information.
EOG elected to adopt ASU 2016-02 and other related ASUs using the modified retrospective approach with a cumulative-effect adjustment to the opening balance of retained earnings as of the effective date. Financial results reported in periods prior to January 1, 2019, are unchanged. Additionally, EOG elected the package of practical expedients within ASU 2016-02 that allows an entity to not reassess prior to the effective date (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases, or (iii) initial direct costs for any existing leases, but did not elect the practical expedient of hindsight when determining the lease term of existing contracts at the effective date. EOG also elected the practical expedient under ASU 2018-01, "Leases (Topic 842) - Land Easement Practical Expedient for Transition to Topic 842," and did not evaluate existing or expired land easements not previously accounted for as leases prior to the January 1, 2019 effective date. There was no impact to retained earnings upon adoption of ASU 2016-02 and other related ASUs.
In the ordinary course of business, EOG enters into contracts for drilling, fracturing, compression, real estate and other services which contain equipment and other assets and that meet the definition of a lease under ASU 2016-02. The lease term for these contracts, which includes any renewals at EOG's option that are reasonably certain to be exercised, ranges from one month to 30 years.
ROU assets and related liabilities are recognized on the commencement date on the Consolidated Balance Sheets based on future lease payments, discounted based on the rate implicit in the contract, if readily determinable, or EOG's incremental borrowing rate commensurate with the lease term of the contract. EOG estimates its incremental borrowing rate based on the approximate rate required to borrow on a collateralized basis. Contracts with lease terms of less than 12 months are not recorded on the Consolidated Balance Sheets, but instead are disclosed as short-term lease cost. EOG has elected not to separate non-lease components from all leases, excluding those for fracturing services, real estate and salt water disposal, as lease payments under these contracts contain significant non-lease components, such as labor and operating costs. See Note 18.
Recently Issued Accounting Standards. In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740) ‑ Simplifying the Accounting for Income Taxes" (ASU 2019-12), which amends certain aspects of accounting for income taxes. ASU 2019-12 removes specific exceptions within existing U.S. GAAP related to the incremental approach for intraperiod tax allocation and to the general methodology for calculating income taxes in interim periods, among other changes. ASU 2019-12 also requires an entity to reflect the effect of an enacted change in tax laws or rates in the annual effective tax rate computation in the interim period that includes the enactment date, among other requirements. ASU 2019-12 is effective for interim and annual periods beginning after December 15, 2020, and early adoption is permitted. EOG is continuing to evaluate the provisions of ASU 2019-12 and has not determined the full impact on its consolidated financial statements and related disclosures.
F-13

In June 2016, the FASB issued ASU 2016-13 "Measurement of Credit Losses on Financial Instruments" (ASU 2016-13). ASU 2016-13 changes the impairment model for financial assets and certain other instruments by requiring entities to adopt a forward-looking expected loss model that will result in earlier recognition of credit losses. ASU 2016-13 requires adoption through the use of a modified retrospective approach at the effective date by recognizing a cumulative-effect adjustment to the opening balance of retained earnings. ASU 2016-13 is effective for interim and annual periods beginning after December 15, 2019, and early adoption is permitted. EOG has assessed its applicable financial assets, which are primarily its accounts receivable from hydrocarbon sales and joint interest billings to third-party companies, including state-owned entities in the oil and gas industry. Based on its assessment and various potential remedies ensuring collection, EOG does not expect the impact from forward-looking expected losses will be material. EOG will apply the provisions of ASU 2016-13 on the adoption date, January 1, 2020.
2. Long-Term Debt
Long-Term Debt at December 31, 2019 and 2018 consisted of the following (in thousands):

| 2019 |  | 2018
5.625% Senior Notes due 2019 | $ | — |  |  | $ | 900,000 |
4.40% Senior Notes due 2020 | 500,000 |  |  | 500,000 |
2.45% Senior Notes due 2020 | 500,000 |  |  | 500,000 |
4.100% Senior Notes due 2021 | 750,000 |  |  | 750,000 |
2.625% Senior Notes due 2023 | 1,250,000 |  |  | 1,250,000 |
3.15% Senior Notes due 2025 | 500,000 |  |  | 500,000 |
4.15% Senior Notes due 2026 | 750,000 |  |  | 750,000 |
6.65% Senior Notes due 2028 | 140,000 |  |  | 140,000 |
3.90% Senior Notes due 2035 | 500,000 |  |  | 500,000 |
5.10% Senior Notes due 2036 | 250,000 |  |  | 250,000 |
Long-Term Debt | 5,140,000 |  |  | 6,040,000 |
Finance Leases (see Note 18) | 57,900 |  |  | 71,571 |
Less: Current Portion of Long-Term Debt | 1,014,524 |  |  | 913,093 |
Unamortized Debt Discount | 19,528 |  |  | 24,640 |
Debt Issuance Costs | 2,929 |  |  | 3,669 |
Total Long-Term Debt | $ | 4,160,919 |  |  | $ | 5,170,169 |

At December 31, 2019, the aggregate annual maturities of long-term debt (excluding finance lease obligations) were $1 billion in 2020, $750 million in 2021, zero in 2022, $1.25 billion in 2023 and zero in 2024.
On June 3, 2019, EOG repaid upon maturity the $900 million aggregate principal amount of its 5.625% Senior Notes due 2019.
On October 1, 2018, EOG repaid upon maturity the $350 million aggregate principal amount of its 6.875% Senior Notes due 2018.
At December 31, 2019 and 2018, EOG had no outstanding short-term borrowings under its commercial paper program and did not utilize any such borrowings during 2019. During 2018, EOG utilized commercial paper borrowings, bearing market interest rates, for various corporate financing purposes. The average borrowings outstanding under the commercial paper program were $8 million during the year ended December 31, 2018. The weighted average interest rate for commercial paper borrowings during the year ended December 31, 2018, was 1.97%.
On June 27, 2019, EOG entered into a new $2.0 billion senior unsecured Revolving Credit Agreement (New Facility) with domestic and foreign lenders (Banks). The New Facility replaced EOG's $2.0 billion senior unsecured Revolving Credit Agreement, dated as of July 21, 2015, with domestic and foreign lenders (2015 Facility), which had a scheduled maturity date of July 21, 2020 and which was terminated by EOG (without penalty), effective as of June 27, 2019, in connection with the completion of the New Facility.
F-14

The New Facility has a scheduled maturity date of June 27, 2024, and includes an option for EOG to extend, on up to two occasions, the term for successive one-year periods subject to certain terms and conditions. The New Facility (i) commits the Banks to provide advances up to an aggregate principal amount of $2.0 billion at any one time outstanding, with an option for EOG to request increases in the aggregate commitments to an amount not to exceed $3.0 billion, subject to certain terms and conditions, and (ii) includes a swingline subfacility and a letter of credit subfacility. Advances under the New Facility will accrue interest based, at EOG’s option, on either the London InterBank Offered Rate plus an applicable margin (Eurodollar Rate) or the Base Rate (as defined in the New Facility) plus an applicable margin. The applicable margin used in connection with interest rates and fees will be based on EOG’s credit rating for its senior unsecured long-term debt at the applicable time.
Consistent with the terms of the 2015 Facility, the New Facility contains representations, warranties, covenants and events of default that we believe are customary for investment grade, senior unsecured commercial bank credit agreements, including a financial covenant for the maintenance of a ratio of total debt-to-total capitalization (as such terms are defined in the New Facility) of no greater than 65%. At December 31, 2019, EOG was in compliance with this financial covenant.
There were no borrowings or letters of credit outstanding under the 2015 Facility as of (i) December 31, 2018 or (ii) the June 27, 2019 effective date of the closing of the New Facility and termination of the 2015 Facility. Further, at December 31, 2019, there were no borrowings or letters of credit outstanding under the New Facility. The Eurodollar Rate and Base Rate (inclusive of the applicable margin), had there been any amounts borrowed under the New Facility at December 31, 2019, would have been 2.66% and 4.75%, respectively.
3. Stockholders' Equity
Common Stock. In September 2001, EOG's Board of Directors (Board) authorized the purchase of an aggregate maximum of 10 million shares of Common Stock that superseded all previous authorizations. At December 31, 2019, 6,386,200 shares remained available for purchase under this authorization. EOG last purchased shares of its Common Stock under this authorization in March 2003. In addition, shares of Common Stock are from time to time withheld by, or returned to, EOG in satisfaction of tax withholding obligations arising upon the exercise of employee stock options or stock-settled stock appreciation rights (SARs), the vesting of restricted stock, restricted stock unit, performance unit grants or in payment of the exercise price of employee stock options. Such shares withheld or returned do not count against the Board authorization discussed above. Shares purchased, withheld and returned are held in treasury for, among other purposes, fulfilling any obligations arising under EOG's stock-based compensation plans and any other approved transactions or activities for which such shares of Common Stock may be required.
On February 27, 2020, the Board increased the quarterly cash dividend on the common stock from the previous $0.2875 per share to $0.375 per share, effective beginning with the dividend to be paid on April 30, 2020, to stockholders of record as of April 16, 2020.
On May 2, 2019, the Board increased the quarterly cash dividend on the common stock from the previous $0.22 per share to $0.2875 per share, effective beginning with the dividend paid on July 31, 2019, to stockholders of record as of July 17, 2019.
On August 2, 2018, the Board increased the quarterly cash dividend on the common stock by 19% from the previous $0.1850 per share to $0.22 per share, effective beginning with the dividend paid on October 31, 2018, to stockholders of record as of October 17, 2018. On February 27, 2018, EOG's Board increased the quarterly cash dividend on the common stock by 10% from the previous $0.1675 per share to $0.1850 per share, effective beginning with the dividend paid on April 30, 2018, to stockholders of record as of April 16, 2018. EOG declared and paid quarterly cash dividends of $0.1675 per share in 2017.
On February 15, 2017, the Board approved an amendment to EOG's Restated Certificate of Incorporation to increase the number of EOG's authorized shares of common stock from 640 million to 1,280 million. EOG's stockholders approved the increase at the Annual Meeting of Stockholders on April 27, 2017, and the amendment was filed with the Delaware Secretary of State on April 28, 2017.
F-15

The following summarizes Common Stock activity for each of the years ended December 31, 2017, 2018 and 2019 (in thousands):

| Common Shares
| Issued |  | Treasury |  | Outstanding
Balance at December 31, 2016 | 576,950 |  |  | (250 | ) |  | 576,700 |
Common Stock Issued Under Stock-Based Compensation Plans | 1,878 |  |  | — |  |  | 1,878 |
Treasury Stock Purchased (1) | — |  |  | (686 | ) |  | (686 | )
Common Stock Issued Under Employee Stock Purchase Plan | — |  |  | 180 |  |  | 180 |
Treasury Stock Issued Under Stock-Based Compensation Plans | — |  |  | 405 |  |  | 405 |
Balance at December 31, 2017 | 578,828 |  |  | (351 | ) |  | 578,477 |
Common Stock Issued Under Stock-Based Compensation Plans | 1,580 |  |  | — |  |  | 1,580 |
Treasury Stock Purchased (1) | — |  |  | (539 | ) |  | (539 | )
Common Stock Issued Under Employee Stock Purchase Plan | — |  |  | 180 |  |  | 180 |
Treasury Stock Issued Under Stock-Based Compensation Plans | — |  |  | 325 |  |  | 325 |
Balance at December 31, 2018 | 580,408 |  |  | (385 | ) |  | 580,023 |
Common Stock Issued Under Stock-Based Compensation Plans | 1,688 |  |  | — |  |  | 1,688 |
Treasury Stock Purchased (1) | — |  |  | (310 | ) |  | (310 | )
Common Stock Issued Under Employee Stock Purchase Plan | 117 |  |  | 106 |  |  | 223 |
Treasury Stock Issued Under Stock-Based Compensation Plans | — |  |  | 290 |  |  | 290 |
Balance at December 31, 2019 | 582,213 |  |  | (299 | ) |  | 581,914 |

(1) | Represents shares that were withheld by or returned to EOG (i) in satisfaction of tax withholding obligations that arose upon the exercise of employee stock options or SARs or the vesting of restricted stock, restricted stock unit, performance unit grants or (ii) in payment of the exercise price of employee stock options.

Preferred Stock. EOG currently has one authorized series of preferred stock. As of December 31, 2019, there were no shares of preferred stock outstanding.
F-16

4. Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive loss includes certain transactions that have generally been reported in the Consolidated Statements of Stockholders' Equity. The components of Accumulated Other Comprehensive Loss at December 31, 2019 and 2018 consisted of the following (in thousands):

| Foreign Currency Translation Adjustment |  | Other |  | Total
December 31, 2017 | $ | (16,642 | ) |  | $ | (2,655 | ) |  | $ | (19,297 | )
Other comprehensive income before reclassifications | 2,451 |  |  | 1,131 |  |  | 3,582 |
Amounts reclassified out of other comprehensive income (loss) (1) | 14,365 |  |  | — |  |  | 14,365 |
Tax effects | — |  |  | (8 | ) |  | (8 | )
Other comprehensive income | 16,816 |  |  | 1,123 |  |  | 17,939 |
December 31, 2018 | 174 |  |  | (1,532 | ) |  | (1,358 | )
Cumulative effect of accounting changes | — |  |  | 267 |  |  | 267 |
Other comprehensive loss before reclassifications | (2,883 | ) |  | (533 | ) |  | (3,416 | )
Tax effects | — |  |  | (145 | ) |  | (145 | )
Other comprehensive loss | (2,883 | ) |  | (678 | ) |  | (3,561 | )
December 31, 2019 | $ | (2,709 | ) |  | $ | (1,943 | ) |  | $ | (4,652 | )

(1) | Reclassified to Net Income - Gains (Losses) on Asset Dispositions, Net. See Note 17.

No significant amount was reclassified out of Accumulated Other Comprehensive Loss during the year ended December 31, 2019.
5. Other Income, Net
Other income, net for 2019 included interest income ($26 million) and net foreign currency transaction gains ($2 million). Other income, net for 2018 included interest income ($12 million), a downward adjustment to deferred compensation expense ($6 million) and equity income from investments in ammonia plants in Trinidad ($2 million), partially offset by net foreign currency transaction losses ($7 million). Other income, net for 2017 included net foreign currency transaction gains ($8 million), interest income ($8 million) and equity income from investments in ammonia plants in Trinidad ($3 million), partially offset by an upward adjustment to deferred compensation expense ($6 million).
F-17

6. Income Taxes
The principal components of EOG's total net deferred income tax liabilities at December 31, 2019 and 2018 were as follows (in thousands):

| 2019 |  | 2018 |
Deferred Income Tax Assets (Liabilities) |  |  |  |  |  |
Foreign Oil and Gas Exploration and Development Costs Deducted for Tax Under Book Depreciation, Depletion and Amortization | $ | 5,825 |  |  | $ | 4,359 |  |
Foreign Net Operating Loss | 66,675 |  |  | 55,175 |  |
Foreign Valuation Allowances | (70,455 | ) |  | (58,932 | ) |
Foreign Other | 318 |  |  | 175 |  |
Total Net Deferred Income Tax Assets | $ | 2,363 |  |  | $ | 777 |  |
Deferred Income Tax (Assets) Liabilities |  |  |  |  |  |
Oil and Gas Exploration and Development Costs Deducted for Tax Over Book Depreciation, Depletion and Amortization | $ | 5,277,550 |  |  | $ | 4,583,517 |  | (1)
Commodity Hedging Contracts | (4,699 | ) |  | 4,883 |  |
Deferred Compensation Plans | (47,650 | ) |  | (39,086 | ) |
Accrued Expenses and Liabilities | (8,502 | ) |  | (19,097 | ) |
Equity Awards | (108,324 | ) |  | (93,977 | ) |
Alternative Minimum Tax Credit Carryforward | (31,904 | ) |  | — |  |
Undistributed Foreign Earnings | 15,746 |  |  | 22,945 |  |
Other | (46,116 | ) |  | (45,787 | ) |
Total Net Deferred Income Tax Liabilities | $ | 5,046,101 |  |  | $ | 4,413,398 |  |
Total Net Deferred Income Tax Liabilities | $ | 5,043,738 |  |  | $ | 4,412,621 |  |

(1) | The 2018 presentation has been changed to conform with current year presentation.

The components of Income Before Income Taxes for the years indicated below were as follows (in thousands):

| 2019 |  | 2018 |  | 2017
United States | $ | 3,466,578 |  |  | $ | 4,084,156 |  |  | $ | 621,610 |
Foreign | 78,689 |  |  | 156,842 |  |  | 39,572 |
Total | $ | 3,545,267 |  |  | $ | 4,240,998 |  |  | $ | 661,182 |

F-18

The principal components of EOG's Income Tax Provision (Benefit) for the years indicated below were as follows (in thousands):

| 2019 |  | 2018 |  | 2017
Current: |  |  |  |  |
Federal | $ | (152,258 | ) |  | $ | (303,853 | ) |  | $ | 33,058 |
State | 10,819 |  |  | 17,048 |  |  | (2,502 | )
Foreign | 81,426 |  |  | 65,615 |  |  | 35,323 |
Total | (60,013 | ) |  | (221,190 | ) |  | 65,879 |
Deferred: |  |  |  |  |  |  |  |
Federal | 626,901 |  |  | 862,075 |  |  | (1,504,288 | )
State | 32,541 |  |  | 43,293 |  |  | 26,942 |
Foreign | (27,784 | ) |  | (11,212 | ) |  | 3,474 |
Total | 631,658 |  |  | 894,156 |  |  | (1,473,872 | )
Other Non-Current: (1) |  |  |  |  |
Federal | 245,125 |  |  | 148,992 |  |  | (513,404 | )
Foreign | (6,413 | ) |  | — |  |  | — |
Total | 238,712 |  |  | 148,992 |  |  | (513,404 | )
Income Tax Provision (Benefit) | $ | 810,357 |  |  | $ | 821,958 |  |  | $ | (1,921,397 | )

(1) | Includes changes in certain amounts that are expected to be paid or received beyond the next twelve months. The primary components are refundable alternative minimum tax (AMT) credits and the 2017 repatriation tax. See the following statutory-to-effective tax rate reconciliation for additional details.

The differences between taxes computed at the U.S. federal statutory tax rate and EOG's effective rate for the years indicated below were as follows:

| 2019 |  | 2018 |  | 2017 |
Statutory Federal Income Tax Rate | 21.00 | % |  | 21.00 | % |  | 35.00 | % |
State Income Tax, Net of Federal Benefit | 0.97 |  |  | 1.12 |  |  | 3.38 |  |
Income Tax Provision Related to Foreign Operations | 0.87 |  |  | 0.51 |  |  | (0.30 | ) |
Income Tax Provision Related to United Kingdom Operations | — |  |  | — |  |  | 1.78 |  |
Income Tax Provision Related to Canadian Operations | — |  |  | — |  |  | 2.30 |  |
TCJA (1) | — |  |  | (2.60 | ) | (2) | (328.10 | ) | (3)
Share-Based Compensation | 0.02 |  |  | (0.47 | ) |  | (4.63 | ) |
Other | — |  |  | (0.18 | ) |  | (0.03 | ) |
Effective Income Tax Rate | 22.86 | % |  | 19.38 | % |  | (290.60 | )% |

(1) | The enactment of the Tax Cuts and Jobs Act (TCJA) by the United States in 2017 made numerous changes to federal tax law. Several changes which had a significant impact on EOG include the corporate income tax rate reduction from 35% to 21%, the imposition of a one-time repatriation tax on undistributed foreign earnings and the repeal of the corporate AMT regime (AMT credit carryforwards became refundable over the following four years and were initially subject to a federal sequestration charge). In 2017, EOG revalued its federal deferred income tax assets and liabilities resulting in an earnings benefit of over $2 billion and a substantial reduction of the 2017 effective tax rate. The TCJA measurement-period adjustments were recorded in 2018.

(2) | Includes impact of utilizing certain tax net operating losses (NOLs) ((1.2)%), the reversal of sequestration ((1.0)%) and other tax reform impacts ((0.4)%).

(3) | Includes impact of the federal rate reduction ((327.8)%), federal repatriation tax ((6.6)%), sequestration ((6.4)%) and other tax reform impacts ((0.1)%).

The net effective tax rate of 23% in 2019 was higher than the prior year rate of 19% primarily due to the absence of tax benefits from certain tax reform measurement-period adjustments.
F-19

Deferred tax assets are recorded for certain tax benefits, including tax NOLs and tax credit carryforwards, provided that management assesses the utilization of such assets to be "more likely than not." Management assesses the available positive and negative evidence to estimate if sufficient future taxable income will be generated to use the existing deferred tax assets. On the basis of this evaluation, EOG has recorded valuation allowances for the portion of certain foreign and state deferred tax assets that management does not believe are more likely than not to be realized.
The principal components of EOG's rollforward of valuation allowances for deferred income tax assets for the years indicated below were as follows (in thousands):

| 2019 |  | 2018 |  | 2017
Beginning Balance | $ | 167,142 |  |  | $ | 466,421 |  |  | $ | 383,221 |
Increase (1) | 30,673 |  |  | 23,062 |  |  | 67,333 |
Decrease (2) | (75 | ) |  | (26,219 | ) |  | (13,687 | )
Other (3) | 3,091 |  |  | (296,122 | ) |  | 29,554 |
Ending Balance | $ | 200,831 |  |  | $ | 167,142 |  |  | $ | 466,421 |

(1) | Increase in valuation allowance related to the generation of tax NOLs and other deferred tax assets.

(2) | Decrease in valuation allowance associated with adjustments to certain deferred tax assets and their related allowance.

(3) | Represents dispositions, revisions and/or foreign exchange rate variances and the effect of statutory income tax rate changes. The United Kingdom operations were sold in the fourth quarter of 2018.

As of December 31, 2019, EOG had state income tax NOLs of approximately $2.1 billion, which, if unused, expire between 2020 and 2038. EOG also has Canadian NOLs of $225 million, some of which can be carried forward up to 20 years. As described above, these NOLs and other less significant tax benefits have been evaluated for the likelihood of utilization, and valuation allowances have been established for the portion of these deferred income tax assets that do not meet the “more likely than not” threshold.
The total balance of unrecognized tax benefits for all jurisdictions at December 31, 2019, was $39 million, resulting from the tax treatment of research and experimental expenditures related to certain innovations in EOG's horizontal drilling and completion projects and tax treatment of certain compensation deductions, of which $25 million may potentially have an earnings impact. EOG records interest and penalties related to unrecognized tax benefits to its income tax provision. Cumulatively, $4 million of interest has been recognized in the Consolidated Statements of Income and Comprehensive Income. EOG does not anticipate that the amount of the unrecognized tax benefits will change materially during the next twelve months. EOG and its subsidiaries file income tax returns and are subject to tax audits in the U.S. and various state, local and foreign jurisdictions. EOG's earliest open tax years in its principal jurisdictions are as follows: U.S. federal (2016), Canada (2015), Trinidad (2013) and China (2009).
EOG's foreign subsidiaries' undistributed earnings are not considered to be permanently reinvested outside of the U.S. Accordingly, EOG may be required to accrue certain U.S. federal, state, and foreign deferred income taxes on these undistributed earnings as well as on any other outside basis differences related to its investments in these subsidiaries. As of December 31, 2019, EOG has cumulatively recorded $16 million of deferred foreign income taxes for withholdings on its undistributed foreign earnings. Additionally, for tax years beginning in 2018 and later, EOG's foreign earnings may be subject to the U.S. federal "global intangible low-taxed income" (GILTI) inclusion. EOG records any GILTI tax as a period expense.
7. Employee Benefit Plans
Stock-Based Compensation
During 2019, EOG maintained various stock-based compensation plans as discussed below. EOG recognizes compensation expense on grants of stock options, SARs, restricted stock and restricted stock units, performance units and grants made under the EOG Resources, Inc. Employee Stock Purchase Plan (ESPP). Stock-based compensation expense is calculated based upon the grant date estimated fair value of the awards, net of forfeitures, based upon EOG's historical employee turnover rate. Compensation expense is amortized over the shorter of the vesting period or the period from date of grant until the date the employee becomes eligible to retire without company approval.
F-20

Stock-based compensation expense is included on the Consolidated Statements of Income and Comprehensive Income based upon the job functions of the employees receiving the grants. Compensation expense related to EOG's stock-based compensation plans for the years ended December 31, 2019, 2018 and 2017 was as follows (in millions):

| 2019 |  | 2018 |  | 2017
Lease and Well | $ | 56 |  |  | $ | 51 |  |  | $ | 41 |
Gathering and Processing Costs | 1 |  |  | 1 |  |  | 1 |
Exploration Costs | 26 |  |  | 25 |  |  | 23 |
General and Administrative | 92 |  |  | 78 |  |  | 69 |
Total | $ | 175 |  |  | $ | 155 |  |  | $ | 134 |

The Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (2008 Plan) provides for grants of stock options, SARs, restricted stock and restricted stock units, performance units, and other stock-based awards.
The vesting schedules for grants of stock options, SARs, restricted stock and restricted stock units, and performance units are as follows:

Grant Type |  | Vesting Schedule
Stock Options/SARs |  | Vesting in increments of 33%, 33% and 34% on each of the first three anniversaries, respectively, of the date of grant
Restricted Stock/Restricted Stock Units |  | "Cliff" vesting three years from the date of grant
Performance Units |  | "Cliff" vesting approximately 41 months from the date of grant - specifically, on the February 28 th immediately following the Compensation Committee's certifications contemplated by the form of award agreement governing such grant of performance units

At December 31, 2019, approximately 6.8 million common shares remained available for grant under the 2008 Plan. EOG's policy is to issue shares related to the 2008 Plan from previously authorized unissued shares or treasury shares to the extent treasury shares are available.
During 2019, 2018 and 2017, EOG issued shares in connection with stock option/SAR exercises, restricted stock and performance unit grants, restricted stock unit and performance unit releases and ESPP purchases. Net tax deficiencies and excess tax benefits recognized within the income tax provision were $(1) million, $20 million and $32 million for the twelve months ended December 31, 2019, 2018 and 2017, respectively.
Stock Options and Stock-Settled Stock Appreciation Rights and Employee Stock Purchase Plan. Participants in EOG's stock-based compensation plans (including the 2008 Plan) have been or may be granted options to purchase shares of Common Stock. In addition, participants in EOG's stock plans (including the 2008 Plan) have been or may be granted SARs, representing the right to receive shares of Common Stock based on the appreciation in the stock price from the date of grant on the number of SARs granted. Stock options and SARs are granted at a price not less than the market price of the Common Stock on the date of grant. Terms for stock options and SARs granted have generally not exceeded a maximum term of seven years. EOG's ESPP allows eligible employees to semi-annually purchase, through payroll deductions, shares of Common Stock at 85 percent of the fair market value at specified dates. Contributions to the ESPP are limited to 10 percent of the employee's pay (subject to certain ESPP limits) during each of the two six-month offering periods each year.
The fair value of stock option grants and SAR grants is estimated using the Hull-White II binomial option pricing model. The fair value of ESPP grants is estimated using the Black-Scholes-Merton model. Stock-based compensation expense related to stock option, SAR and ESPP grants totaled $63 million, $60 million and $56 million for the years ended December 31, 2019, 2018 and 2017, respectively.
F-21

Weighted average fair values and valuation assumptions used to value stock option, SAR and ESPP grants for the years ended December 31, 2019, 2018 and 2017 were as follows:

| Stock Options/SARs |  | ESPP
| 2019 |  | 2018 |  | 2017 |  | 2019 |  | 2018 |  | 2017
Weighted Average Fair Value of Grants | $ | 19.49 |  |  | $ | 33.46 |  |  | $ | 23.95 |  |  | $ | 22.83 |  |  | $ | 25.75 |  |  | $ | 22.20 |
Expected Volatility | 32.02 | % |  | 28.23 | % |  | 28.28 | % |  | 34.78 | % |  | 24.59 | % |  | 27.12 | %
Risk-Free Interest Rate | 1.69 | % |  | 2.68 | % |  | 1.52 | % |  | 2.27 | % |  | 1.89 | % |  | 0.88 | %
Dividend Yield | 1.39 | % |  | 0.72 | % |  | 0.75 | % |  | 1.04 | % |  | 0.64 | % |  | 0.71 | %
Expected Life | 5.1 years |  |  | 5.0 years |  |  | 5.1 years |  |  | 0.5 years |  |  | 0.5 years |  |  | 0.5 years |

Expected volatility is based on an equal weighting of historical volatility and implied volatility from traded options in EOG's Common Stock. The risk-free interest rate is based upon United States Treasury yields in effect at the time of grant. The expected life is based upon historical experience and contractual terms of stock option, SAR and ESPP grants.
The following table sets forth the stock option and SAR transactions for the years ended December 31, 2019, 2018 and 2017 (stock options and SARs in thousands):

| 2019 |  | 2018 |  | 2017
| Number of Stock Options/ SARs |  | Weighted Average Grant Price |  | Number of Stock Options/ SARs |  | Weighted Average Grant Price |  | Number of Stock Options/ SARs |  | Weighted Average Grant Price
Outstanding at January 1 | 8,310 |  |  | $ | 96.90 |  |  | 9,103 |  |  | $ | 83.89 |  |  | 9,850 |  |  | $ | 75.53 |
Granted | 1,965 |  |  | 75.39 |  |  | 1,906 |  |  | 126.49 |  |  | 2,274 |  |  | 96.27 |
Exercised (1) | (606 | ) |  | 61.43 |  |  | (2,493 | ) |  | 72.21 |  |  | (2,574 | ) |  | 61.12 |
Forfeited | (274 | ) |  | 102.57 |  |  | (206 | ) |  | 94.43 |  |  | (447 | ) |  | 93.84 |
Outstanding at December 31 | 9,395 |  |  | 94.53 |  |  | 8,310 |  |  | 96.90 |  |  | 9,103 |  |  | 83.89 |
Stock Options/SARs Exercisable at December 31 | 5,275 |  |  | 94.21 |  |  | 3,969 |  |  | 85.82 |  |  | 4,510 |  |  | 75.76 |

(1) | The total intrinsic value of stock options/SARs exercised during the years 2019, 2018 and 2017 was $14 million, $118 million and $95 million, respectively. The intrinsic value is based upon the difference between the market price of the Common Stock on the date of exercise and the grant price of the stock options/SARs.

At December 31, 2019, there were 9.1 million stock options/SARs vested or expected to vest with a weighted average grant price of $94.52 per share, an intrinsic value of $29.1 million and a weighted average remaining contractual life of 4.2 years.
F-22

The following table summarizes certain information for the stock options and SARs outstanding and exercisable at December 31, 2019 (stock options and SARs in thousands):

Stock Options/SARs Outstanding |  | Stock Options/SARs Exercisable
Range of Grant Prices |  | Stock Options/ SARs |  | Weighted Average Remaining Life (Years) |  | Weighted Average Grant Price |  | Aggregate Intrinsic Value(1) |  | Stock Options/ SARs |  | Weighted Average Remaining Life (Years) |  | Weighted Average Grant Price |  | Aggregate Intrinsic Value (1)
$ 59.00 to $ 74.99 |  | 979 |  |  | 3 |  | $ | 69.43 |  |  |  |  | 953 |  |  | 3 |  | $ | 69.37 |  |  |
75.00 to 75.99 |  | 1,894 |  |  | 7 |  | 75.09 |  |  |  |  | 8 |  |  | 1 |  | 75.09 |  |  |
76.00 to 95.99 |  | 1,979 |  |  | 3 |  | 91.35 |  |  |  |  | 1,607 |  |  | 2 |  | 90.67 |  |  |
96.00 to 96.99 |  | 1,871 |  |  | 4 |  | 96.29 |  |  |  |  | 1,234 |  |  | 4 |  | 96.29 |  |  |
97.00 to 125.99 |  | 923 |  |  | 2 |  | 102.72 |  |  |  |  | 862 |  |  | 2 |  | 102.20 |  |  |
126.00 to 129.99 |  | 1,749 |  |  | 6 |  | 127.01 |  |  |  |  | 611 |  |  | 5 |  | 127.01 |  |  |
|  | 9,395 |  |  | 4 |  | 94.53 |  |  | $ | 30,534 |  |  | 5,275 |  |  | 3 |  | 94.21 |  |  | $ | 13,839 |

(1) | Based upon the difference between the closing market price of the Common Stock on the last trading day of the year and the grant price of in-the-money stock options and SARs.

At December 31, 2019, unrecognized compensation expense related to non-vested stock option and SAR grants totaled $86 million. This unrecognized expense will be amortized on a straight-line basis over a weighted average period of 2.0 years.
At the 2018 Annual Meeting of Stockholders, EOG stockholders approved an amendment and restatement of the ESPP to (among other changes) increase the number of shares available for grant. At December 31, 2019, approximately 2.3 million shares of Common Stock remained available for grant under the ESPP. The following table summarizes ESPP activity for the years ended December 31, 2019, 2018 and 2017 (in thousands, except number of participants):

| 2019 |  | 2018 |  | 2017
Approximate Number of Participants | 1,998 |  |  | 1,934 |  |  | 1,870 |
Shares Purchased | 224 |  |  | 180 |  |  | 180 |
Aggregate Purchase Price | $ | 16,533 |  |  | $ | 14,887 |  |  | $ | 13,997 |

Restricted Stock and Restricted Stock Units. Employees may be granted restricted (non-vested) stock and/or restricted stock units without cost to them. Upon vesting of restricted stock, shares of Common Stock are released to the employee. Upon vesting, restricted stock units are converted into shares of Common Stock and released to the employee. Stock-based compensation expense related to restricted stock and restricted stock units totaled $97 million, $81 million and $68 million for the years ended December 31, 2019, 2018 and 2017, respectively.
F-23

The following table sets forth the restricted stock and restricted stock unit transactions for the years ended December 31, 2019, 2018 and 2017 (shares and units in thousands):

| 2019 |  | 2018 |  | 2017
| Number of Shares and Units |  | Weighted Average Grant Date Fair Value |  | Number of Shares and Units |  | Weighted Average Grant Date Fair Value |  | Number of Shares and Units |  | Weighted Average Grant Date Fair Value
Outstanding at January 1 | 3,792 |  |  | $ | 96.64 |  |  | 3,905 |  |  | $ | 88.57 |  |  | 3,962 |  |  | $ | 79.63 |
Granted | 1,749 |  |  | 80.01 |  |  | 812 |  |  | 117.55 |  |  | 1,095 |  |  | 97.34 |
Released (1) | (855 | ) |  | 96.93 |  |  | (740 | ) |  | 78.16 |  |  | (929 | ) |  | 61.51 |
Forfeited | (140 | ) |  | 97.54 |  |  | (185 | ) |  | 92.12 |  |  | (223 | ) |  | 85.45 |
Outstanding at December 31 (2) | 4,546 |  |  | 90.16 |  |  | 3,792 |  |  | 96.64 |  |  | 3,905 |  |  | 88.57 |

(1) | The total intrinsic value of restricted stock and restricted stock units released during the years ended December 31, 2019, 2018 and 2017 was $70 million, $84 million and $91 million, respectively. The intrinsic value is based upon the closing price of EOG's common stock on the date restricted stock and restricted stock units are released.

(2) | The total intrinsic value of restricted stock and restricted stock units outstanding at December 31, 2019, 2018 and 2017 was $381 million, $331 million and $421 million, respectively. The intrinsic value is based on the closing market price of the Common Stock on the last trading day of the year.

At December 31, 2019, unrecognized compensation expense related to restricted stock and restricted stock units totaled $202 million. Such unrecognized expense will be recognized on a straight-line basis over a weighted average period of 1.8 years.
Performance Units. EOG has granted performance units (Performance Awards) to its executive officers annually since 2012. As more fully discussed in the grant agreements, the performance metric applicable to these performance-based grants is EOG's total shareholder return over a three-year performance period relative to the total shareholder return of a designated group of peer companies (Performance Period). Upon the application of the performance multiple at the completion of the Performance Period, a minimum of 0% and a maximum of 200% of the Performance Awards granted could be outstanding. The fair value of the Performance Awards is estimated using a Monte Carlo simulation. Stock-based compensation expense related to the Performance Award grants totaled $15 million, $14 million and $10 million for the years ended December 31, 2019, 2018 and 2017, respectively.
Weighted average fair values and valuation assumptions used to value Performance Awards during the years ended December 31, 2019, 2018 and 2017 were as follows:

| 2019 |  | 2018 |  | 2017
Weighted Average Fair Value of Grants | $ | 79.98 |  |  | $ | 136.74 |  |  | $ | 113.81 |
Expected Volatility | 29.20 | % |  | 29.92 | % |  | 32.19 | %
Risk-Free Interest Rate | 1.51 | % |  | 2.85 | % |  | 1.60 | %

Expected volatility is based on the term-matched historical volatility over the simulated term, which is calculated as the time between the grant date and the end of the Performance Period. The risk-free interest rate is derived from the Treasury Constant Maturities yield curve on the grant date.
F-24

The following table sets forth the Performance Award transactions for the years ended December 31, 2019, 2018 and 2017 (shares and units in thousands):

| 2019 |  | 2018 |  | 2017
| Number of Units and Shares |  |  | Weighted Average Price per Grant Date |  | Number of Units and Shares |  | Weighted Average Price per Grant Date |  | Number of Units and Shares |  | Weighted Average Price per Grant Date
Outstanding at January 1 | 539 |  |  |  | $ | 101.53 |  |  | 502 |  |  | $ | 90.96 |  |  | 545 |  |  | $ | 80.92 |
Granted | 172 |  |  |  | 75.09 |  |  | 113 |  |  | 125.73 |  |  | 78 |  |  | 96.29 |
Granted for Performance Multiple (1) | 72 |  |  |  | 69.43 |  |  | 72 |  |  | 101.87 |  |  | 119 |  |  | 84.43 |
Released (2) | (185 | ) |  |  | 94.63 |  |  | (148 | ) |  | 84.43 |  |  | (240 | ) |  | 66.69 |
Forfeited | — |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Outstanding at December 31 (3) | 598 |  | (4 | ) |  | 92.19 |  |  | 539 |  |  | 101.53 |  |  | 502 |  |  | 90.96 |

(1) | Upon completion of the Performance Period for the Performance Awards granted in 2015, 2014 and 2013, a performance multiple of 200% was applied to each of the grants resulting in additional grants of Performance Awards in February 2019, 2018 and 2017.

(2) | The total intrinsic value of Performance Awards released during the years ended December 31, 2019, 2018 and 2017 was $15 million, $18 million and $24 million, respectively. The intrinsic value is based upon the closing price of EOG's common stock on the date Performance Awards are released.

(3) | The total intrinsic value of Performance Awards outstanding at December 31, 2019, 2018 and 2017 was $50 million, $47 million and $54 million, respectively. The intrinsic value is based on the closing market price of the Common Stock on the last trading day of the year.

(4) | Upon the application of the relevant performance multiple at the completion of each of the remaining Performance Periods, a minimum of 102 and a maximum of 1,094 Performance Awards could be outstanding.

At December 31, 2019, unrecognized compensation expense related to Performance Awards totaled $9 million. Such unrecognized expense will be amortized on a straight-line basis over a weighted average period of 2.0 years.
Upon completion of the Performance Period for the Performance Awards granted in September 2016 and December 2016, a performance multiple of 150% was applied to the grants resulting in an additional grant of 65,872 Performance Awards in February 2020.
Pension Plans. EOG has a defined contribution pension plan in place for most of its employees in the United States. EOG's contributions to the pension plan are based on various percentages of compensation and, in some instances, are based upon the amount of the employees' contributions. EOG's total costs recognized for the plan were $51 million, $43 million and $37 million for 2019, 2018 and 2017, respectively.
In addition, EOG's Trinidadian subsidiary maintains a contributory defined benefit pension plan and a matched savings plan. EOG's United Kingdom subsidiary maintained a pension plan which included a non-contributory defined contribution pension plan and a matched defined contribution savings plan. These pension plans are available to most employees of the Trinidadian subsidiary and were available to most employees of the United Kingdom subsidiary. EOG's combined contributions to these plans were $1 million, for each of 2019, 2018 and 2017, respectively. The United Kingdom operations were sold in the fourth quarter of 2018.
For the Trinidadian defined benefit pension plan, the benefit obligation, fair value of plan assets and accrued benefit cost totaled $12 million, $10 million and $0.1 million, respectively, at December 31, 2019, and $11 million, $9 million and $0.2 million, respectively, at December 31, 2018.
Postretirement Health Care. EOG has postretirement medical and dental benefits in place for eligible United States and Trinidad employees and their eligible dependents, the costs of which are not material.
F-25

8. Commitments and Contingencies
Letters of Credit and Guarantees. At December 31, 2019 and 2018, respectively, EOG had standby letters of credit and guarantees outstanding totaling $902 million and $294 million, primarily representing guarantees of payment or performance obligations on behalf of subsidiaries. As of February 19, 2020, EOG had received no demands for payment under these guarantees.
Minimum Commitments. At December 31, 2019, total minimum commitments from purchase and service obligations and transportation and storage service commitments not qualifying as leases, based on current transportation and storage rates and the foreign currency exchange rates used to convert Canadian dollars into United States dollars at December 31, 2019, were as follows (in millions):

| Total Minimum Commitments
2020 | $ | 1,312 |
2021 | 1,103 |
2022 | 1,027 |
2023 | 764 |
2024 | 519 |
2025 and beyond | 2,531 |
| $ | 7,256 |

Contingencies. There are currently various suits and claims pending against EOG that have arisen in the ordinary course of EOG's business, including contract disputes, personal injury and property damage claims and title disputes. While the ultimate outcome and impact on EOG cannot be predicted, management believes that the resolution of these suits and claims will not, individually or in the aggregate, have a material adverse effect on EOG's consolidated financial position, results of operations or cash flow. EOG records reserves for contingencies when information available indicates that a loss is probable and the amount of the loss can be reasonably estimated.
9. Net Income Per Share
The following table sets forth the computation of Net Income Per Share for the years ended December 31, 2019, 2018 and 2017 (in thousands, except per share data):

| 2019 |  | 2018 |  | 2017
Numerator for Basic and Diluted Earnings per Share - |  |  |  |  |
Net Income | $ | 2,734,910 |  |  | $ | 3,419,040 |  |  | $ | 2,582,579 |
Denominator for Basic Earnings per Share - |  |  |  |  |  |  |  |
Weighted Average Shares | 577,670 |  |  | 576,578 |  |  | 574,620 |
Potential Dilutive Common Shares - |  |  |  |  |  |  |  |
Stock Options/SARs | 258 |  |  | 1,137 |  |  | 1,466 |
Restricted Stock/Units and Performance Units | 2,849 |  |  | 2,726 |  |  | 2,607 |
Denominator for Diluted Earnings per Share - |  |  |  |  |  |  |  |
Adjusted Diluted Weighted Average Shares | 580,777 |  |  | 580,441 |  |  | 578,693 |
Net Income Per Share |  |  |  |  |  |  |  |
Basic | $ | 4.73 |  |  | $ | 5.93 |  |  | $ | 4.49 |
Diluted | $ | 4.71 |  |  | $ | 5.89 |  |  | $ | 4.46 |

The diluted earnings per share calculation excludes stock options, SARs, restricted stock and units and performance units that were anti-dilutive. Shares underlying the excluded stock options and SARs totaled 6.1 million, 0.6 million and 2.6 million for the years ended December 31, 2019, 2018 and 2017, respectively.
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10. Supplemental Cash Flow Information
Net cash paid (received) for interest and income taxes was as follows for the years ended December 31, 2019, 2018 and 2017 (in thousands):

| 2019 |  | 2018 |  | 2017
Interest, Net of Capitalized Interest | $ | 186,546 |  |  | $ | 243,279 |  |  | $ | 275,305 |
Income Taxes, Net of Refunds Received | $ | (291,849 | ) |  | $ | 75,634 |  |  | $ | 188,946 |

EOG's accrued capital expenditures at December 31, 2019, 2018 and 2017 were $612 million, $592 million and $475 million, respectively.
Non-cash investing activities for the year ended December 31, 2019, included additions of $150 million to EOG's oil and gas properties as a result of property exchanges.
Non-cash investing activities for the year ended December 31, 2018, included additions of $362 million to EOG's oil and gas properties as a result of property exchanges and an addition of $49 million to EOG's other property, plant and equipment primarily in connection with a finance lease transaction in the Permian Basin.
Non-cash investing activities for the year ended December 31, 2017, included non-cash additions of $282 million to EOG's oil and gas properties as a result of property exchanges.
Cash paid for leases for the year ended December 31, 2019, is disclosed in Note 18.
11. Business Segment Information
EOG's operations are all crude oil, NGLs and natural gas exploration and production related. The Segment Reporting Topic of the ASC establishes standards for reporting information about operating segments in annual financial statements. Operating segments are defined as components of an enterprise about which separate financial information is available and evaluated regularly by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. EOG's chief operating decision-making process is informal and involves the Chairman of the Board and Chief Executive Officer and other key officers. This group routinely reviews and makes operating decisions related to significant issues associated with each of EOG's major producing areas in the United States, Trinidad and China. For segment reporting purposes, the chief operating decision maker considers the major United States producing areas to be one operating segment.
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Financial information by reportable segment is presented below as of and for the years ended December 31, 2019, 2018 and 2017 (in thousands):

| United States |  | Trinidad |  | Other International (1) |  | Total
2019 |  |  |  |  |  |  |
Crude Oil and Condensate | $ | 9,599,125 |  |  | $ | 11,138 |  |  | $ | 2,269 |  |  | $ | 9,612,532 |
Natural Gas Liquids | 784,818 |  |  | — |  |  | — |  |  | 784,818 |
Natural Gas | 866,911 |  |  | 258,819 |  |  | 58,365 |  |  | 1,184,095 |
Gains on Mark-to-Market Commodity Derivative Contracts | 180,275 |  |  | — |  |  | — |  |  | 180,275 |
Gathering, Processing and Marketing | 5,355,463 |  |  | 4,819 |  |  | — |  |  | 5,360,282 |
Gains (Losses) on Asset Dispositions, Net | 131,446 |  |  | (3,688 | ) |  | (4,145 | ) |  | 123,613 |
Other, Net | 134,325 |  |  | 18 |  |  | 15 |  |  | 134,358 |
Operating Revenues and Other (2) | 17,052,363 |  |  | 271,106 |  |  | 56,504 |  |  | 17,379,973 |
Depreciation, Depletion and Amortization | 3,652,294 |  |  | 79,389 |  |  | 18,021 |  |  | 3,749,704 |
Operating Income (Loss) | 3,618,907 |  |  | 112,790 |  |  | (32,686 | ) |  | 3,699,011 |
Interest Income | 22,122 |  |  | 3,686 |  |  | 218 |  |  | 26,026 |
Other Income | 3,235 |  |  | 727 |  |  | 1,397 |  |  | 5,359 |
Net Interest Expense | 192,587 |  |  | — |  |  | (7,458 | ) |  | 185,129 |
Income (Loss) Before Income Taxes | 3,451,677 |  |  | 117,203 |  |  | (23,613 | ) |  | 3,545,267 |
Income Tax Provision | 760,881 |  |  | 40,901 |  |  | 8,575 |  |  | 810,357 |
Additions to Oil and Gas Properties, Excluding Dry Hole Costs | 6,208,394 |  |  | 53,325 |  |  | 12,233 |  |  | 6,273,952 |
Total Property, Plant and Equipment, Net | 30,101,857 |  |  | 184,606 |  |  | 78,132 |  |  | 30,364,595 |
Total Assets | 36,274,942 |  |  | 705,747 |  |  | 143,919 |  |  | 37,124,608 |

F-28

| United States |  | Trinidad |  | Other International (1) |  | Total
2018 |  |  |  |  |  |  |
Crude Oil and Condensate | $ | 9,390,244 |  |  | $ | 17,059 |  |  | $ | 110,137 |  |  | $ | 9,517,440 |
Natural Gas Liquids | 1,127,510 |  |  | — |  |  | — |  |  | 1,127,510 |
Natural Gas | 970,866 |  |  | 285,053 |  |  | 45,618 |  |  | 1,301,537 |
Losses on Mark-to-Market Commodity Derivative Contracts | (165,640 | ) |  | — |  |  | — |  |  | (165,640 | )
Gathering, Processing and Marketing | 5,227,051 |  |  | 3,304 |  |  | — |  |  | 5,230,355 |
Gains on Asset Dispositions, Net | 154,852 |  |  | 4,493 |  |  | 15,217 |  |  | 174,562 |
Other, Net | 89,708 |  |  | (49 | ) |  | (24 | ) |  | 89,635 |
Operating Revenues and Other (3) | 16,794,591 |  |  | 309,860 |  |  | 170,948 |  |  | 17,275,399 |
Depreciation, Depletion and Amortization | 3,296,499 |  |  | 91,971 |  |  | 46,938 |  |  | 3,435,408 |
Operating Income (Loss) | 4,334,364 |  |  | 147,240 |  |  | (12,258 | ) |  | 4,469,346 |
Interest Income | 9,326 |  |  | 1,612 |  |  | 608 |  |  | 11,546 |
Other Income (Expense) | 9,580 |  |  | 2,436 |  |  | (6,858 | ) |  | 5,158 |
Net Interest Expense | 253,352 |  |  | — |  |  | (8,300 | ) |  | 245,052 |
Income (Loss) Before Income Taxes | 4,099,918 |  |  | 151,288 |  |  | (10,208 | ) |  | 4,240,998 |
Income Tax Provision | 765,986 |  |  | 54,272 |  |  | 1,700 |  |  | 821,958 |
Additions to Oil and Gas Properties, Excluding Dry Hole Costs | 6,155,874 |  |  | 1,618 |  |  | 37,838 |  |  | 6,195,330 |
Total Property, Plant and Equipment, Net | 27,786,086 |  |  | 210,183 |  |  | 79,250 |  |  | 28,075,519 |
Total Assets | 33,178,733 |  |  | 629,633 |  |  | 126,108 |  |  | 33,934,474 |
2017 |  |  |  |  |  |  |  |  |  |  |
Crude Oil and Condensate | $ | 6,225,711 |  |  | $ | 13,572 |  |  | $ | 17,113 |  |  | $ | 6,256,396 |
Natural Gas Liquids | 729,545 |  |  | — |  |  | 16 |  |  | 729,561 |
Natural Gas | 615,512 |  |  | 271,101 |  |  | 35,321 |  |  | 921,934 |
Gains on Mark-to-Market Commodity Derivative Contracts | 19,828 |  |  | — |  |  | — |  |  | 19,828 |
Gathering, Processing and Marketing | 3,298,098 |  |  | (11 | ) |  | — |  |  | 3,298,087 |
Losses on Asset Dispositions, Net | (98,233 | ) |  | (8 | ) |  | (855 | ) |  | (99,096 | )
Other, Net | 81,610 |  |  | 59 |  |  | (59 | ) |  | 81,610 |
Operating Revenues and Other (4) | 10,872,071 |  |  | 284,713 |  |  | 51,536 |  |  | 11,208,320 |
Depreciation, Depletion and Amortization | 3,269,196 |  |  | 115,321 |  |  | 24,870 |  |  | 3,409,387 |
Operating Income (Loss) | 933,571 |  |  | 101,010 |  |  | (108,179 | ) |  | 926,402 |
Interest Income | 3,223 |  |  | 2,201 |  |  | 2,289 |  |  | 7,713 |
Other Income (Expense) | (9,659 | ) |  | 3,337 |  |  | 7,761 |  |  | 1,439 |
Net Interest Expense | 303,941 |  |  | — |  |  | (29,569 | ) |  | 274,372 |
Income (Loss) Before Income Taxes | 623,194 |  |  | 106,548 |  |  | (68,560 | ) |  | 661,182 |
Income Tax Provision (Benefit) | (1,964,343 | ) |  | 38,798 |  |  | 4,148 |  |  | (1,921,397 | )
Additions to Oil and Gas Properties, Excluding Dry Hole Costs | 4,067,359 |  |  | 145,937 |  |  | 14,932 |  |  | 4,228,228 |
Total Property, Plant and Equipment, Net | 25,125,427 |  |  | 313,357 |  |  | 226,253 |  |  | 25,665,037 |
Total Assets | 28,312,599 |  |  | 974,477 |  |  | 546,002 |  |  | 29,833,078 |

(1) | Other International primarily consists of EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

(2) | EOG had sales activity with two significant purchasers in 2019, one totaling $2.4 billion, and the other totaling $2.2 billion of consolidated Operating Revenues and Other in the United States segment.

(3) | EOG had sales activity with two significant purchasers in 2018, one totaling $2.6 billion and the other totaling $2.3 billion of consolidated Operating Revenues and Other in the United States segment.

(4) | EOG had sales activity with two significant purchasers in 2017, one totaling $1.5 billion and the other totaling $1.3 billion of consolidated Operating Revenues and Other in the United States segment.

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12. Risk Management Activities
Commodity Price Risks. EOG engages in price risk management activities from time to time. These activities are intended to manage EOG's exposure to fluctuations in commodity prices for crude oil, NGLs and natural gas. EOG utilizes financial commodity derivative instruments, primarily price swap, option, swaption, collar and basis swap contracts, as a means to manage this price risk.
During 2019, 2018 and 2017, EOG elected not to designate any of its financial commodity derivative contracts as accounting hedges and, accordingly, accounted for these financial commodity derivative contracts using the mark-to-market accounting method. Under this accounting method, changes in the fair value of outstanding financial instruments are recognized as gains or losses in the period of change and are recorded as Gains (Losses) on Mark-to-Market Commodity Derivative Contracts on the Consolidated Statements of Income and Comprehensive Income. The related cash flow impact is reflected in Cash Flows from Operating Activities. During 2019, 2018 and 2017, EOG recognized net gains (losses) on the mark-to-market of financial commodity derivative contracts of $180 million, $(166) million and $20 million, respectively, which included cash received from (payments for) settlements of crude oil and natural gas derivative contracts of $231 million, $(259) million and $7 million, respectively.
Crude Oil Derivative Contracts. Prices received by EOG for its crude oil production generally vary from U.S. New York Mercantile Exchange (NYMEX) West Texas Intermediate prices due to adjustments for delivery location (basis) and other factors. EOG has entered into crude oil basis swap contracts in order to fix the differential between pricing in Midland, Texas, and Cushing, Oklahoma (Midland Differential). Presented below is a comprehensive summary of EOG's Midland Differential basis swap contracts for the year ended December 31, 2019. The weighted average price differential expressed in dollars per barrel ($/Bbl) represents the amount of reduction to Cushing, Oklahoma, prices for the notional volumes expressed in barrels per day (Bbld) covered by the basis swap contracts.

| Midland Differential Basis Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price Differential ($/Bbl)
| 2019 |  |  |  |
| January 1, 2019 through December 31, 2019 (closed) |  | 20,000 |  |  | $ | 1.075 |

EOG has also entered into crude oil basis swap contracts in order to fix the differential between pricing in the U.S. Gulf Coast and Cushing, Oklahoma (Gulf Coast Differential). Presented below is a comprehensive summary of EOG's Gulf Coast Differential basis swap contracts for the year ended December 31, 2019. The weighted average price differential expressed in $/Bbl represents the amount of addition to Cushing, Oklahoma, prices for the notional volumes expressed in Bbld covered by the basis swap contracts.

| Gulf Coast Differential Basis Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price Differential ($/Bbl)
| 2019 |  |  |  |
| January 1, 2019 through December 31, 2019 (closed) |  | 13,000 |  |  | $ | 5.572 |

F-30

Presented below is a comprehensive summary of EOG's crude oil price swap contracts for the year ended December 31, 2019, with notional volumes expressed in Bbld and prices expressed in $/Bbl.

| Crude Oil Price Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price ($/Bbl)
| 2019 |  |  |  |
| April 2019 (closed) |  | 25,000 |  |  | $ | 60.00 |
| May 1, 2019 through December 31, 2019 (closed) |  | 150,000 |  |  | 62.50 |
| 2020 |  |  |  |
| January 1, 2020 through March 31, 2020 |  | 200,000 |  |  | $ | 59.33 |
| April 1, 2020 through June 30, 2020 |  | 150,000 |  |  | 59.03 |
| July 1, 2020 through September 30, 2020 |  | 50,000 |  |  | 58.32 |

NGLs Derivative Contracts. Presented below is a comprehensive summary of EOG's Mont Belvieu propane (non-TET) price swap contracts for the year ended December 31, 2019, with notional volumes expressed in Bbld and prices expressed in $/Bbl.

| Mont Belvieu Propane Price Swap Contracts
|  |  | Volume (Bbld) |  | Weighted Average Price ($/Bbl)
| 2020 |  |  |  |
| January 1, 2020 through December 31, 2020 |  | 4,000 |  |  | $ | 21.34 |

Natural Gas Derivative Contracts. Presented below is a comprehensive summary of EOG's natural gas price swap contracts for the year ended December 31, 2019, with notional volumes expressed in million British thermal units (MMBtu) per day (MMBtud) and prices expressed in dollars per MMBtu ($/MMBtu).

| Natural Gas Price Swap Contracts
|  |  | Volume (MMBtud) |  | Weighted Average Price ($/MMBtu)
| 2019 |  |  |  |
| April 1, 2019 through October 31, 2019 (closed) |  | 250,000 |  |  | $ | 2.90 |

Prices received by EOG for its natural gas production generally vary from NYMEX Henry Hub prices due to adjustments for delivery location (basis) and other factors. EOG has entered into natural gas basis swap contracts in order to fix the differential between pricing in the Rocky Mountain area and NYMEX Henry Hub prices (Rockies Differential). Presented below is a comprehensive summary of EOG's Rockies Differential basis swap contracts for the year ended December 31, 2019. The weighted average price differential expressed in $/MMBtu represents the amount of reduction to NYMEX Henry Hub prices for the notional volumes expressed in MMBtud covered by the basis swap contracts.

| Rockies Differential Basis Swap Contracts
|  |  | Volume (MMBtud) |  | Weighted Average Price Differential ($/MMBtu)
| 2020 |  |  |  |
| January 1, 2020 through December 31, 2020 |  | 30,000 |  |  | $ | 0.55 |

F-31

EOG has also entered into natural gas basis swap contracts in order to fix the differential between pricing at the Houston Ship Channel (HSC) and NYMEX Henry Hub prices (HSC Differential). Presented below is a comprehensive summary of EOG's HSC Differential basis swap contracts for the year ended December 31, 2019. The weighted average price differential expressed in $/MMBtu represents the amount of reduction to NYMEX Henry Hub prices for the notional volumes expressed in MMBtud covered by the basis swap contracts.

| HSC Differential Basis Swap Contracts
|  |  | Volume (MMBtud) |  | Weighted Average Price Differential ($/MMBtu)
| 2020 |  |  |  |
| January 1, 2020 through December 31, 2020 |  | 60,000 |  |  | $ | 0.05 |

EOG has also entered into natural gas basis swap contracts in order to fix the differential between pricing at the Waha Hub in West Texas and NYMEX Henry Hub prices (Waha Differential). Presented below is a comprehensive summary of EOG's Waha Differential basis swap contracts for the year ended December 31, 2019. The weighted average price differential expressed in $/MMBtu represents the amount of reduction to NYMEX Henry Hub prices for the notional volumes expressed in MMBtud covered by the basis swap contracts.

| Waha Differential Basis Swap Contracts
|  |  | Volume (MMBtud) |  | Weighted Average Price Differential ($/MMBtu)
| 2020 |  |  |  |
| January 1, 2020 through December 31, 2020 |  | 50,000 |  |  | $ | 1.40 |

Commodity Derivatives Location on Balance Sheet. The following table sets forth the amounts and classification of EOG's outstanding derivative financial instruments at December 31, 2019 and 2018, respectively. Certain amounts may be presented on a net basis on the consolidated financial statements when such amounts are with the same counterparty and subject to a master netting arrangement (in thousands):

|  |  |  | Fair Value at December 31,
Description |  | Location on Balance Sheet |  | 2019 |  | 2018
Asset Derivatives |  |  |  |  |  |
Crude oil, NGLs and natural gas derivative contracts - |  |  |  |  |  |
Current portion |  | Assets from Price Risk Management Activities (1) |  | $ | 1,299 |  |  | $ | 23,806 |
Liability Derivatives |  |  |  |  |  |  |  |
Crude oil, NGLs and natural gas derivative contracts - |  |  |  |  |  |  |  |
Current portion |  | Liabilities from Price Risk Management Activities (2) |  | $ | 20,194 |  |  | $ | — |

(1) | The current portion of Assets from Price Risk Management Activities consists of gross assets of $3 million, partially offset by gross liabilities of $2 million, at December 31, 2019.

(2) | The current portion of Liabilities from Price Risk Management Activities consists of gross liabilities of $23 million, partially offset by gross assets of $3 million at December 31, 2019.

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Credit Risk. Notional contract amounts are used to express the magnitude of a financial derivative. The amounts potentially subject to credit risk, in the event of nonperformance by the counterparties, are equal to the fair value of such contracts (see Note 13). EOG evaluates its exposure to significant counterparties on an ongoing basis, including those arising from physical and financial transactions. In some instances, EOG renegotiates payment terms and/or requires collateral, parent guarantees or letters of credit to minimize credit risk.
At December 31, 2019, EOG's net accounts receivable balance related to United States hydrocarbon sales included three receivable balances, each of which accounted for more than 10% of the total balance. The receivables were due from three petroleum refinery companies. The related amounts were collected during early 2020. At December 31, 2018, EOG's net accounts receivable balance related to United States hydrocarbon sales included three receivable balances, each of which accounted for more than 10% of the total balance. The receivables were due from three petroleum refinery companies. The related amounts were collected during early 2019.
In 2019 and 2018, all natural gas from EOG's Trinidad operations was sold to the National Gas Company of Trinidad and Tobago Limited and its subsidiary. In 2019, all crude oil and condensate from EOG's Trinidad operations was sold to Heritage Petroleum Company Limited (Heritage). In 2018, all crude oil and condensate from EOG's Trinidad operations was sold to Heritage and its predecessor, the Petroleum Company of Trinidad and Tobago Limited. In 2019 and 2018, all natural gas from EOG's China operations was sold to Petrochina Company Limited.
All of EOG's derivative instruments are covered by International Swap Dealers Association Master Agreements (ISDAs) with counterparties. The ISDAs may contain provisions that require EOG, if it is the party in a net liability position, to post collateral when the amount of the net liability exceeds the threshold level specified for EOG's then-current credit ratings. In addition, the ISDAs may also provide that as a result of certain circumstances, including certain events that cause EOG's credit ratings to become materially weaker than its then-current ratings, the counterparty may require all outstanding derivatives under the ISDA to be settled immediately. See Note 13 for the aggregate fair value of all derivative instruments that were in a net liability position at December 31, 2019. EOG had no collateral posted and held no collateral at December 31, 2019 and 2018.
Substantially all of EOG's accounts receivable at December 31, 2019 and 2018 resulted from hydrocarbon sales and/or joint interest billings to third-party companies, including foreign state-owned entities in the oil and gas industry. This concentration of customers and joint interest owners may impact EOG's overall credit risk, either positively or negatively, in that these entities may be similarly affected by changes in economic or other conditions. In determining whether or not to require collateral or other credit enhancements from a customer, EOG typically analyzes the entity's net worth, cash flows, earnings and credit ratings. Receivables are generally not collateralized. During the three-year period ended December 31, 2019, credit losses incurred on receivables by EOG have been immaterial.
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13. Fair Value Measurements
Certain of EOG's financial and nonfinancial assets and liabilities are reported at fair value on the Consolidated Balance Sheets. An established fair value hierarchy prioritizes the relative reliability of inputs used in fair value measurements. The hierarchy gives highest priority to Level 1 inputs that represent unadjusted quoted market prices in active markets for identical assets and liabilities that the reporting entity has the ability to access at the measurement date. Level 2 inputs are directly or indirectly observable inputs other than quoted prices included within Level 1. Level 3 inputs are unobservable inputs and have the lowest priority in the hierarchy. EOG gives consideration to the credit risk of its counterparties, as well as its own credit risk, when measuring financial assets and liabilities at fair value.
The following table provides fair value measurement information within the fair value hierarchy for certain of EOG's financial assets and liabilities carried at fair value on a recurring basis at December 31, 2019 and 2018. Amounts shown in thousands.

| Fair Value Measurements Using:
| Quoted Prices in Active Markets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total
At December 31, 2019 |  |  |  |  |  |  |
Financial Assets (1): |  |  |  |  |  |  |
Natural Gas Liquids Swaps | $ | — |  |  | $ | 3,401 |  |  | $ | — |  |  | $ | 3,401 |
Natural Gas Basis Swaps | — |  |  | 970 |  |  | — |  |  | 970 |
Financial Liabilities (2): |  |  |  |  |  |  |
Crude Oil Swaps | — |  |  | 23,266 |  |  | — |  |  | 23,266 |
At December 31, 2018 |  |  |  |  |  |  |  |  |  |  |
Financial Assets (1): |  |  |  |  |  |  |  |  |  |  |
Crude Oil Swaps | $ | — |  |  | $ | 23,806 |  |  | $ | — |  |  | $ | 23,806 |

(1) | $1 million and $24 million are included in "Current Assets - Assets from Price Risk Management Activities" at December 31, 2019 and 2018, respectively, on the Consolidated Balance Sheets.

(2) | $20 million is included in "Current Liabilities - Liabilities from Price Risk Management Activities" at December 31, 2019, on the Consolidated Balance Sheets.

The estimated fair value of crude oil, NGLs and natural gas derivative contracts (including options/collars) was based upon forward commodity price curves based on quoted market prices. Commodity derivative contracts were valued by utilizing an independent third-party derivative valuation provider who uses various types of valuation models, as applicable.
The initial measurement of asset retirement obligations at fair value is calculated using discounted cash flow techniques and based on internal estimates of future retirement costs associated with property, plant and equipment. Significant Level 3 inputs used in the calculation of asset retirement obligations include plugging costs and reserve lives. A reconciliation of EOG's asset retirement obligations is presented in Note 15.
During 2019, proved oil and gas properties; other property, plant and equipment; and other assets with a carrying amount of $998 million were written down to their fair value of $701 million, resulting in pretax impairment charges of $297 million. Included in the $297 million pretax impairment charges are $152 million of impairments of proved oil and gas properties for which EOG utilized an accepted offer from a third-party purchaser as the basis for determining fair value. In addition, EOG recorded impairment charges in 2019 of $90 million for a commodity price-related write-down of other assets.
During 2018, proved oil and gas properties; other property, plant and equipment; and other assets with a carrying amount of $482 million were written down to their fair value of $308 million, resulting in pretax impairment charges of $174 million. Included in the $174 million pretax impairment charges are $104 million of impairments of proved oil and gas properties for which EOG utilized an accepted offer from a third-party purchaser as the basis for determining fair value. In addition, EOG recorded pretax impairment charges in 2018 of $49 million for a commodity price-related write-down of other assets.
F-34

Significant Level 3 inputs associated with the calculation of discounted cash flows used in the impairment analysis include EOG's estimate of future crude oil, NGLs and natural gas prices, production costs, development expenditures, anticipated production of proved reserves, appropriate risk-adjusted discount rates and other relevant data.
EOG utilized average prices per acre from comparable market transactions and estimated discounted cash flows as the basis for determining the fair value of unproved and proved properties, respectively, received in non-cash property exchanges. See Note 10.
Fair Value of Debt. At December 31, 2019 and 2018, respectively, EOG had outstanding $5,140 million and $6,040 million aggregate principal amount of senior notes, which had estimated fair values of approximately $5,452 million and $6,027 million, respectively. The estimated fair value of debt was based upon quoted market prices and, where such prices were not available, other observable (Level 2) inputs regarding interest rates available to EOG at year-end.
14. Accounting for Certain Long-Lived Assets
EOG reviews its proved oil and gas properties for impairment purposes by comparing the expected undiscounted future cash flows at a depreciation, depletion and amortization group level to the unamortized capitalized cost of the asset. The carrying values for assets determined to be impaired were adjusted to estimated fair value using the Income Approach described in the Fair Value Measurement Topic of the ASC. In certain instances, EOG utilizes accepted offers from third-party purchasers as the basis for determining fair value.
During 2019, proved oil and gas properties with a carrying amount of $408 million were written down to their fair value of $201 million, resulting in pretax impairment charges of $207 million. During 2018, proved oil and gas properties with a carrying amount of $139 million were written down to their fair value of $18 million, resulting in pretax impairment charges of $121 million. Im p airments in 2019, 2018 and 2017 included domestic legacy natural gas assets. Amortization and impairments of unproved oil and gas property costs, including amortization of capitalized interest, were $220 million, $173 million and $211 million during 2019, 2018 and 2017, respectively.
15. Asset Retirement Obligations
The following table presents the reconciliation of the beginning and ending aggregate carrying amounts of short-term and long-term legal obligations associated with the retirement of property, plant and equipment for the years ended December 31, 2019 and 2018 (in thousands):

| 2019 |  | 2018
Carrying Amount at Beginning of Period | $ | 954,377 |  |  | $ | 946,848 |
Liabilities Incurred | 98,874 |  |  | 79,057 |
Liabilities Settled (1) | (58,673 | ) |  | (70,829 | )
Accretion | 43,462 |  |  | 36,622 |
Revisions | 72,425 |  |  | (38,932 | )
Foreign Currency Translations | 245 |  |  | 1,611 |
Carrying Amount at End of Period | $ | 1,110,710 |  |  | $ | 954,377 |
Current Portion | $ | 37,127 |  |  | $ | 26,214 |
Noncurrent Portion | $ | 1,073,583 |  |  | $ | 928,163 |

(1) | Includes settlements related to asset sales.

The current and noncurrent portions of EOG's asset retirement obligations are included in Current Liabilities - Other and Other Liabilities, respectively, on the Consolidated Balance Sheets.
F-35

16. Exploratory Well Costs
EOG's net changes in capitalized exploratory well costs for the years ended December 31, 2019, 2018 and 2017 are presented below (in thousands):

| 2019 |  | 2018 |  | 2017
Balance at January 1 | $ | 4,121 |  |  | $ | 2,167 |  |  | $ | — |
Additions Pending the Determination of Proved Reserves | 83,175 |  |  | 10,304 |  |  | 27,487 |
Reclassifications to Proved Properties | (39,325 | ) |  | (7,917 | ) |  | (20,802 | )
Costs Charged to Expense (1) | (22,074 | ) |  | (433 | ) |  | (4,518 | )
Balance at December 31 | $ | 25,897 |  |  | $ | 4,121 |  |  | $ | 2,167 |

(1) | Includes capitalized exploratory well costs charged to either dry hole costs or impairments.

At December 31, 2019, 2018 and 2017, all exploratory well costs had been capitalized for periods of less than one year.
17. Acquisitions and Divestitures
During 2019, EOG paid cash for property acquisitions of $328 million in the United States. Additionally during 2019, EOG recognized net gains on asset dispositions of $124 million primarily due to sales of producing properties, acreage and other assets, as well as non-cash property exchanges in New Mexico, and received proceeds of approximately $140 million.
During 2018, EOG recognized a net gain on asset dispositions of $175 million primarily due to non-cash property exchanges in Texas, New Mexico and Wyoming. Additionally, EOG received proceeds in 2018 of approximately $227 million primarily due to the sale of its United Kingdom operations in the fourth quarter of 2018.
During 2017, EOG recognized a net loss on asset dispositions of $99 million and received proceeds of approximately $227 million primarily from sales of producing properties, other assets and acreage in Texas and Oklahoma.
Also during 2017, EOG completed acquisitions of approximately $73 million to acquire producing properties in various areas in the United States.
F-36

18. Leases
Lease costs are classified by the function of the ROU asset. The lease costs related to exploration and development activities are initially included in the Oil and Gas Properties line on the Consolidated Balance Sheets and subsequently accounted for in accordance with the Extractive Industries - Oil and Gas Topic of the ASC. Variable lease cost represents costs incurred above the contractual minimum payments and other charges associated with leased equipment, primarily for drilling and fracturing contracts classified as operating leases. The components of lease cost for the year ended December 31, 2019, were as follows (in millions):

| Year Ended December 31, 2019
Operating Lease Cost | $ | 497 |
Finance Lease Cost: |
Amortization of Lease Assets | 13 |
Interest on Lease Liabilities | 2 |
Variable Lease Cost | 138 |
Short-Term Lease Cost | 333 |
Total Lease Cost | $ | 983 |

The following table sets forth the amounts and classification of EOG's outstanding ROU assets and related lease liabilities and supplemental information at December 31, 2019 (in millions, except lease terms and discount rates):

Description |  | Location on Balance Sheet |  | Amount
Assets |  |  |  |
Operating Leases |  | Other Assets |  | $ | 773 |
Finance Leases |  | Property, Plant and Equipment, Net (1) |  | 53 |
Total |  |  |  | $ | 826 |
Liabilities |  |  |  |
Current |  |  |  |
Operating Leases |  | Current Portion of Operating Lease Liabilities |  | $ | 369 |
Finance Leases |  | Current Portion of Long-Term Debt |  | 15 |
Long-Term |  |  |  |
Operating Leases |  | Other Liabilities |  | 430 |
Finance Leases |  | Long-Term Debt |  | 43 |
Total |  |  |  | $ | 857 |

(1) | Finance lease assets are recorded net of accumulated amortization of $60 million at December 31, 2019.

| Year Ended December 31, 2019
Weighted Average Remaining Lease Term (in years): |
Operating Leases | 3.2 |
Finance Leases | 4.7 |
Weighted Average Discount Rate: |
Operating Leases | 3.5 | %
Finance Leases | 3.0 | %

F-37

Cash paid for leases was as follows for the year ended December 31, 2019 (in millions):

| Year Ended December 31, 2019
Repayment of Operating Lease Liabilities Associated with Operating Activities | $ | 225 |
Repayment of Operating Lease Liabilities Associated with Investing Activities | 270 |
Repayment of Finance Lease Liabilities | 13 |

Upon adoption of ASU 2016-02 effective January 1, 2019, EOG recognized operating lease ROU assets of $566 million. Non-cash leasing activities for the twelve months ended December 31, 2019, included the addition of $784 million of operating leases.
At December 31, 2019, the future minimum lease payments under non-cancellable leases were as follows (in millions):

| Operating Leases |  | Finance Leases
2020 | $ | 390 |  |  | $ | 15 |
2021 | 209 |  |  | 15 |
2022 | 126 |  |  | 12 |
2023 | 56 |  |  | 8 |
2024 | 29 |  |  | 8 |
2025 and Beyond | 40 |  |  | 6 |
Total Lease Payments | 850 |  |  | 64 |
Less: Discount to Present Value | 51 |  |  | 6 |
Total Lease Liabilities | 799 |  |  | 58 |
Less: Current Portion of Lease Liabilities | 369 |  |  | 15 |
Long-Term Lease Liabilities | $ | 430 |  |  | $ | 43 |

At December 31, 2019, EOG had additional leases of $699 million, of which $521 million and $178 million were expected to commence in 2020 and 2021, respectively, with lease terms of one month to 10 years.
At December 31, 2018 and prior to the adoption of ASU 2016-02 and other related ASUs, the future minimum commitments under non-cancellable leases, including non-lease components and excluding contracts with lease terms of less than 12 months, were as follows (in millions):

| Operating Leases |  | Finance Leases
2019 | $ | 380 |  |  | $ | 15 |
2020 | 213 |  |  | 15 |
2021 | 86 |  |  | 15 |
2022 | 39 |  |  | 12 |
2023 | 30 |  |  | 8 |
2024 and Beyond | 62 |  |  | 14 |
Total Lease Payments | $ | 810 |  |  | $ | 79 |

F-38

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, Except Per Share Data, Unless Otherwise Indicated)
(Unaudited)
Oil and Gas Producing Activities
The following disclosures are made in accordance with Financial Accounting Standards Board Accounting Standards Update No. 2010-03 "Oil and Gas Reserve Estimates and Disclosures" and the United States Securities and Exchange Commission's (SEC) final rule on "Modernization of Oil and Gas Reporting."
Oil and Gas Reserves. Users of this information should be aware that the process of estimating quantities of "proved," "proved developed" and "proved undeveloped" crude oil, natural gas liquids (NGLs) and natural gas reserves is complex, requiring significant subjective decisions in the evaluation of available geological, engineering and economic data for each reservoir. The data for a given reservoir may also change substantially over time as a result of numerous factors, including, but not limited to, additional development activity; evolving production history; crude oil and condensate, NGL and natural gas prices; and continual reassessment of the viability of production under varying economic conditions. Consequently, material revisions (upward or downward) to existing reserve estimates may occur from time to time. Although reasonable effort is made to ensure that reserve estimates reported represent the most accurate assessments possible, the significance of the subjective decisions required and variances in available data for various reservoirs make these estimates generally less precise than other estimates presented in connection with financial statement disclosures. For related discussion, see ITEM 1A, Risk Factors.
Proved reserves represent estimated quantities of crude oil, NGLs and natural gas, which, by analysis of geoscience and engineering data, can be estimated, with reasonable certainty, to be economically producible from a given date forward from known reservoirs under then-existing economic conditions, operating methods and government regulations before the time at which contracts providing the right to operate expire, unless evidence indicates that renewal is reasonably certain, regardless of whether deterministic or probabilistic methods are used for the estimation.
Proved developed reserves are proved reserves expected to be recovered under operating methods being utilized at the time the estimates were made, through wells and equipment in place or if the cost of any required equipment is relatively minor compared to the cost of a new well.
Proved undeveloped reserves (PUDs) are reserves that are expected to be recovered from new wells on undrilled acreage, or from existing wells where a relatively major expenditure is required for recompletion. Reserves on undrilled acreage are limited to those directly offsetting development spacing areas that are reasonably certain of production when drilled, unless evidence using reliable technology exists that establishes reasonable certainty of economic producibility at greater distances. PUDs can be recorded in respect of a particular undrilled location only if the location is scheduled, under the then-current drilling and development plan, to be drilled within five years from the date that the PUDs were recorded, unless specific factors (such as those described in interpretative guidance issued by the Staff of the SEC) justify a longer timeframe. Likewise, absent any such specific factors, PUDs associated with a particular undeveloped drilling location shall be removed from the estimates of proved reserves if the location is scheduled, under the then-current drilling and development plan, to be drilled on a date that is beyond five years from the date that the PUDs were recorded. EOG has formulated development plans for all drilling locations associated with its PUDs at December 31, 2019. Under these plans, each PUD location will be drilled within five years from the date it was recorded. Estimates for PUDs are not attributed to any acreage for which an application of fluid injection or other improved recovery technique is contemplated, unless such techniques have been proved effective by actual projects in the same reservoir or an analogous reservoir, or by other evidence using reliable technology establishing reasonable certainty.
In making estimates of PUDs, EOG's technical staff, including engineers and geoscientists, perform detailed technical analysis of each potential drilling location within its inventory of prospects. In making a determination as to which of these locations would penetrate undrilled portions of the formation that can be judged, with reasonable certainty, to be continuous and contain economically producible crude oil, NGLs and natural gas, studies are conducted using numerous data elements and analysis techniques. EOG's technical staff estimates the hydrocarbons in place, by mapping the entirety of the play in question using seismic techniques, typically employing two-dimensional and three-dimensional data. This analysis is integrated with other static data, including, but not limited to, core analysis, mechanical properties of the formation, thermal maturity indicators, and well logs of existing penetrations. Highly specialized equipment is utilized to prepare rock samples in assessing microstructures which contribute to porosity and permeability.
Analysis of dynamic data is then incorporated to arrive at the estimated fractional recovery of hydrocarbons in place. Data analysis techniques employed include, but are not limited to, well testing analysis, static bottom hole pressure analysis, flowing bottom hole pressure analysis, analysis of historical production trends, pressure transient analysis and rate transient analysis. Application of proprietary rate transient analysis techniques in low permeability rocks allow for quantification of estimates of contribution to production from both fractures and rock matrix.
F-39

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The impact of optimal completion techniques is a key factor in determining if the PUDs reflected in prospective locations are reasonably certain of being economically producible. EOG's technical staff estimates the recovery improvement that might be achieved when completing horizontal wells with multi-stage fracture stimulation. In the early stages of development of a play, EOG determines the optimal length of the horizontal lateral and multi-stage fracture stimulation using the aforementioned analysis techniques along with pilot drilling programs and gathering of microseismic data.
The process of analyzing static and dynamic data, well completion optimization and the results of early development activities provides the appropriate level of certainty as well as support for the economic producibility of the plays in which PUDs are reflected. EOG has found this approach to be effective based on successful application in analogous reservoirs in low permeability resource plays.
Certain of EOG's Trinidad reserves are held under production sharing contracts where EOG's interest varies with prices and production volumes. Trinidad reserves, as presented on a net basis, assume prices in existence at the time the estimates were made and EOG's estimate of future production volumes. Future fluctuations in prices, production rates or changes in political or regulatory environments could cause EOG's share of future production from Trinidadian reserves to be materially different from that presented.
Estimates of proved reserves at December 31, 2019, 2018 and 2017 were based on studies performed by the engineering staff of EOG. The Engineering and Acquisitions Department is directly responsible for EOG's reserve evaluation process and consists of 17 professionals, all of whom hold, at a minimum, bachelor's degrees in engineering, and four of whom are Registered Professional Engineers. The Vice President, Engineering and Acquisitions is the manager of this department and is the primary technical person responsible for this process. The Vice President, Engineering and Acquisitions holds a Bachelor of Science degree in Petroleum Engineering, has 33 years of experience in reserve evaluations and is a Registered Professional Engineer.
EOG's reserves estimation process is a collaborative effort coordinated by the Engineering and Acquisitions Department in compliance with EOG's internal controls for such process. Reserve information as well as models used to estimate such reserves are stored on secured databases. Non-technical inputs used in reserve estimation models, including crude oil, NGL and natural gas prices, production costs, transportation costs, future capital expenditures and EOG's net ownership percentages, are obtained from other departments within EOG. EOG's Internal Audit Department conducts testing with respect to such non-technical inputs. Additionally, EOG engages DeGolyer and MacNaughton (D&M), independent petroleum consultants, to perform independent reserves evaluation of select EOG properties comprising not less than 75% of EOG's estimates of proved reserves. EOG's Board of Directors requires that D&M's and EOG's reserve quantities for the properties evaluated by D&M vary by no more than 5% in the aggregate. Once completed, EOG's year-end reserves are presented to senior management, including the Chairman of the Board and Chief Executive Officer; the Chief Operating Officer; the Executive Vice Presidents, Exploration and Production; and the Executive Vice President and Chief Financial Officer, for approval.
Opinions by D&M for the years ended December 31, 2019, 2018 and 2017 covered producing areas containing 82%, 79% and 79%, respectively, of proved reserves of EOG on a net-equivalent-barrel-of-oil basis. D&M's opinions indicate that the estimates of proved reserves prepared by EOG's Engineering and Acquisitions Department for the properties reviewed by D&M, when compared in total on a net-equivalent-barrel-of-oil basis, do not differ materially from the estimates prepared by D&M. Specifically, such estimates by D&M in the aggregate varied by not more than 5% from those prepared by the Engineering and Acquisitions Department of EOG. All reports by D&M were developed utilizing geological and engineering data provided by EOG. The report of D&M dated January 24, 2020, which contains further discussion of the reserve estimates and evaluations prepared by D&M, as well as the qualifications of D&M's technical person primarily responsible for overseeing such estimates and evaluations, is attached as Exhibit 99.1 to this Annual Report on Form 10-K and incorporated herein by reference.
No major discovery or other favorable or adverse event subsequent to December 31, 2019, is believed to have caused a material change in the estimates of net proved reserves as of that date.
The following tables set forth EOG's net proved reserves at December 31 for each of the four years in the period ended December 31, 2019, and the changes in the net proved reserves for each of the three years in the period ended December 31, 2019, as estimated by the Engineering and Acquisitions Department of EOG:
F-40

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
NET PROVED RESERVE SUMMARY

| United States |  | Trinidad |  | Other International (1) |  | Total
NET PROVED RESERVES |  |  |  |  |  |  |
Crude Oil (MBbl) (2) |  |  |  |  |  |  |
Net proved reserves at December 31, 2016 | 1,168,491 |  |  | 839 |  |  | 8,255 |  |  | 1,177,585 |
Revisions of previous estimates | 57,935 |  |  | 80 |  |  | (179 | ) |  | 57,836 |
Purchases in place | 1,111 |  |  | — |  |  | — |  |  | 1,111 |
Extensions, discoveries and other additions | 207,137 |  |  | 301 |  |  | 119 |  |  | 207,557 |
Sales in place | (8,393 | ) |  | — |  |  | — |  |  | (8,393 | )
Production | (122,210 | ) |  | (322 | ) |  | (191 | ) |  | (122,723 | )
Net proved reserves at December 31, 2017 | 1,304,071 |  |  | 898 |  |  | 8,004 |  |  | 1,312,973 |
Revisions of previous estimates | (13,237 | ) |  | (183 | ) |  | 44 |  |  | (13,376 | )
Purchases in place | 2,743 |  |  | — |  |  | — |  |  | 2,743 |
Extensions, discoveries and other additions | 383,003 |  |  | — |  |  | 15 |  |  | 383,018 |
Sales in place | (768 | ) |  | — |  |  | (6,310 | ) |  | (7,078 | )
Production | (144,128 | ) |  | (298 | ) |  | (1,542 | ) |  | (145,968 | )
Net proved reserves at December 31, 2018 | 1,531,684 |  |  | 417 |  |  | 211 |  |  | 1,532,312 |
Revisions of previous estimates | (42,959 | ) |  | 85 |  |  | (8 | ) |  | (42,882 | )
Purchases in place | 2,859 |  |  | — |  |  | — |  |  | 2,859 |
Extensions, discoveries and other additions | 369,968 |  |  | — |  |  | 28 |  |  | 369,996 |
Sales in place | (1,282 | ) |  | — |  |  | — |  |  | (1,282 | )
Production | (166,310 | ) |  | (236 | ) |  | (40 | ) |  | (166,586 | )
Net proved reserves at December 31, 2019 | 1,693,960 |  |  | 266 |  |  | 191 |  |  | 1,694,417 |
Natural Gas Liquids (MBbl) (2) |  |  |  |  |  |  |  |  |  |  |
Net proved reserves at December 31, 2016 | 416,366 |  |  | — |  |  | — |  |  | 416,366 |
Revisions of previous estimates | 46,843 |  |  | — |  |  | — |  |  | 46,843 |
Purchases in place | 421 |  |  | — |  |  | — |  |  | 421 |
Extensions, discoveries and other additions | 75,003 |  |  | — |  |  | — |  |  | 75,003 |
Sales in place | (2,887 | ) |  | — |  |  | — |  |  | (2,887 | )
Production | (32,273 | ) |  | — |  |  | — |  |  | (32,273 | )
Net proved reserves at December 31, 2017 | 503,473 |  |  | — |  |  | — |  |  | 503,473 |
Revisions of previous estimates | 23,942 |  |  | — |  |  | — |  |  | 23,942 |
Purchases in place | 2,006 |  |  | — |  |  | — |  |  | 2,006 |
Extensions, discoveries and other additions | 127,409 |  |  | — |  |  | — |  |  | 127,409 |
Sales in place | (41 | ) |  | — |  |  | — |  |  | (41 | )
Production | (42,460 | ) |  | — |  |  | — |  |  | (42,460 | )
Net proved reserves at December 31, 2018 | 614,329 |  |  | — |  |  | — |  |  | 614,329 |
Revisions of previous estimates | 5,380 |  |  | — |  |  | — |  |  | 5,380 |
Purchases in place | 1,948 |  |  | — |  |  | — |  |  | 1,948 |
Extensions, discoveries and other additions | 167,782 |  |  | — |  |  | — |  |  | 167,782 |
Sales in place | (855 | ) |  | — |  |  | — |  |  | (855 | )
Production | (48,892 | ) |  | — |  |  | — |  |  | (48,892 | )
Net proved reserves at December 31, 2019 | 739,692 |  |  | — |  |  | — |  |  | 739,692 |

F-41

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

| United States |  | Trinidad |  | Other International (1) |  | Total
Natural Gas (Bcf) (3) |  |  |  |  |  |  |
Net proved reserves at December 31, 2016 | 3,021.2 |  |  | 280.9 |  |  | 15.8 |  |  | 3,317.9 |
Revisions of previous estimates | 602.8 |  |  | (27.4 | ) |  | 8.6 |  |  | 584.0 |
Purchases in place | 4.8 |  |  | — |  |  | — |  |  | 4.8 |
Extensions, discoveries and other additions | 619.3 |  |  | 174.2 |  |  | 35.9 |  |  | 829.4 |
Sales in place | (56.4 | ) |  | — |  |  | — |  |  | (56.4 | )
Production | (293.2 | ) |  | (114.3 | ) |  | (9.1 | ) |  | (416.6 | )
Net proved reserves at December 31, 2017 | 3,898.5 |  |  | 313.4 |  |  | 51.2 |  |  | 4,263.1 |
Revisions of previous estimates | (127.2 | ) |  | 20.7 |  |  | 15.0 |  |  | (91.5 | )
Purchases in place | 41.3 |  |  | — |  |  | — |  |  | 41.3 |
Extensions, discoveries and other additions | 951.4 |  |  | — |  |  | 4.6 |  |  | 956.0 |
Sales in place | (22.2 | ) |  | — |  |  | — |  |  | (22.2 | )
Production | (351.2 | ) |  | (97.1 | ) |  | (11.2 | ) |  | (459.5 | )
Net proved reserves at December 31, 2018 | 4,390.6 |  |  | 237.0 |  |  | 59.6 |  |  | 4,687.2 |
Revisions of previous estimates | (184.4 | ) |  | 47.0 |  |  | 2.6 |  |  | (134.8 | )
Purchases in place | 71.7 |  |  | — |  |  | — |  |  | 71.7 |
Extensions, discoveries and other additions | 1,175.9 |  |  | 87.5 |  |  | 9.7 |  |  | 1,273.1 |
Sales in place | (14.5 | ) |  | — |  |  | — |  |  | (14.5 | )
Production | (404.5 | ) |  | (95.4 | ) |  | (13.1 | ) |  | (513.0 | )
Net proved reserves at December 31, 2019 | 5,034.8 |  |  | 276.1 |  |  | 58.8 |  |  | 5,369.7 |
Oil Equivalents (MBoe) (2) |  |  |  |  |  |  |  |  |  |  |
Net proved reserves at December 31, 2016 | 2,088,392 |  |  | 47,661 |  |  | 10,880 |  |  | 2,146,933 |
Revisions of previous estimates | 205,262 |  |  | (4,493 | ) |  | 1,249 |  |  | 202,018 |
Purchases in place | 2,332 |  |  | — |  |  | — |  |  | 2,332 |
Extensions, discoveries and other additions | 385,354 |  |  | 29,340 |  |  | 6,104 |  |  | 420,798 |
Sales in place | (20,687 | ) |  | — |  |  | — |  |  | (20,687 | )
Production | (203,351 | ) |  | (19,366 | ) |  | (1,707 | ) |  | (224,424 | )
Net proved reserves at December 31, 2017 | 2,457,302 |  |  | 53,142 |  |  | 16,526 |  |  | 2,526,970 |
Revisions of previous estimates | (10,500 | ) |  | 3,272 |  |  | 2,544 |  |  | (4,684 | )
Purchases in place | 11,640 |  |  | — |  |  | — |  |  | 11,640 |
Extensions, discoveries and other additions | 668,972 |  |  | — |  |  | 778 |  |  | 669,750 |
Sales in place | (4,509 | ) |  | — |  |  | (6,310 | ) |  | (10,819 | )
Production | (245,127 | ) |  | (16,478 | ) |  | (3,406 | ) |  | (265,011 | )
Net proved reserves at December 31, 2018 | 2,877,778 |  |  | 39,936 |  |  | 10,132 |  |  | 2,927,846 |
Revisions of previous estimates | (68,317 | ) |  | 7,915 |  |  | 431 |  |  | (59,971 | )
Purchases in place | 16,761 |  |  | — |  |  | — |  |  | 16,761 |
Extensions, discoveries and other additions | 733,730 |  |  | 14,577 |  |  | 1,661 |  |  | 749,968 |
Sales in place | (4,555 | ) |  | — |  |  | — |  |  | (4,555 | )
Production | (282,619 | ) |  | (16,130 | ) |  | (2,232 | ) |  | (300,981 | )
Net proved reserves at December 31, 2019 | 3,272,778 |  |  | 46,298 |  |  | 9,992 |  |  | 3,329,068 |

(1) | Other International includes EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

(2) | Thousand barrels or thousand barrels of oil equivalent, as applicable; oil equivalents include crude oil and condensate, NGLs and natural gas. Oil equivalents are determined using a ratio of 1.0 barrel of crude oil and condensate or NGLs to 6.0 thousand cubic feet of natural gas.

(3) | Billion cubic feet.

F-42

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
During 2019, EOG added 750 million barrels of oil equivalent (MMBoe) of proved reserves from drilling activities and technical evaluation of major proved areas, primarily in the Permian Basin, the Eagle Ford and the Rocky Mountain area. Approximately 72% of the 2019 reserve additions were crude oil and condensate and NGLs, and substantially all were in the United States. Sales in place of 5 MMBoe were primarily related to the sale of certain South Texas Area operations and the sale or exchange of other producing assets. Revisions of previous estimates of negative 60 MMBoe for 2019 included a decrease in the average crude oil, NGLs and natural gas prices used in the December 31, 2019, reserves estimation as compared to the prices used in the prior year estimate. The primary area affected was the Rocky Mountain area. Purchases in place of 17 MMBoe were primarily related to the South Texas Area.
During 2018, EOG added 670 MMBoe of proved reserves from drilling activities and technical evaluation of major proved areas, primarily in the Permian Basin, the Eagle Ford, the Rocky Mountain area and the Mid-Continent area. Approximately 76% of the 2018 reserve additions were crude oil and condensate and NGLs, and substantially all were in the United States. Sales in place of 11 MMBoe were primarily related to the sale of the United Kingdom operations and the sale or exchange of other producing assets. Revisions of previous estimates of negative 5 MMBoe for 2018 included an upward revision of 35 MMBoe primarily due to increases in the average crude oil, NGLs and natural gas prices used in the December 31, 2018, reserves estimation as compared to the prices used in the prior year estimate. The primary areas affected were in the Rocky Mountain area, the Eagle Ford and the Permian Basin. Downward revisions other than price of 40 MMBoe resulted primarily from changes in production forecasts and higher production costs. Purchases in place of 12 MMBoe were primarily related to the South Texas Area.
During 2017, EOG added 421 MMBoe of proved reserves from drilling activities and technical evaluation of major proved areas, primarily in the Permian Basin, the Eagle Ford, the Rocky Mountain area and Trinidad. Approximately 67% of the 2017 reserve additions were crude oil and condensate and NGLs, and 92% were in the United States. Sales in place of 21 MMBoe were primarily related to the sale or exchange of certain producing assets. Revisions of previous estimates of 202 MMBoe for 2017 included an upward revision of 154 MMBoe primarily due to increases in the average crude oil, NGLs and natural gas prices used in the December 31, 2017, reserves estimation as compared to the prices used in the prior year estimate. The primary plays affected were in the Rocky Mountain area, the Eagle Ford and the Permian Basin. Positive revisions other than price of 48 MMBoe resulted primarily from improved well performance in the Permian Basin and lower production costs. Purchases in place of 2 MMBoe were primarily related to the Permian Basin.
F-43

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

| United States |  | Trinidad |  | Other International (1) |  | Total
NET PROVED DEVELOPED RESERVES |  |  |  |  |  |  |
Crude Oil (MBbl) |  |  |  |  |  |  |
December 31, 2016 | 507,531 |  |  | 839 |  |  | 8,255 |  |  | 516,625 |
December 31, 2017 | 605,405 |  |  | 898 |  |  | 7,933 |  |  | 614,236 |
December 31, 2018 | 712,218 |  |  | 417 |  |  | 150 |  |  | 712,785 |
December 31, 2019 | 801,189 |  |  | 266 |  |  | 143 |  |  | 801,598 |
Natural Gas Liquids (MBbl) |  |  |  |  |  |  |  |  |  |  |
December 31, 2016 | 230,219 |  |  | — |  |  | — |  |  | 230,219 |
December 31, 2017 | 286,872 |  |  | — |  |  | — |  |  | 286,872 |
December 31, 2018 | 341,386 |  |  | — |  |  | — |  |  | 341,386 |
December 31, 2019 | 387,253 |  |  | — |  |  | — |  |  | 387,253 |
Natural Gas (Bcf) |  |  |  |  |  |  |  |  |  |  |
December 31, 2016 | 1,804.4 |  |  | 262.2 |  |  | 15.8 |  |  | 2,082.4 |
December 31, 2017 | 2,450.8 |  |  | 299.2 |  |  | 29.3 |  |  | 2,779.3 |
December 31, 2018 | 2,699.0 |  |  | 223.9 |  |  | 40.9 |  |  | 2,963.8 |
December 31, 2019 | 2,974.6 |  |  | 177.7 |  |  | 41.8 |  |  | 3,194.1 |
Oil Equivalents (MBoe) |  |  |  |  |  |  |  |  |  |  |
December 31, 2016 | 1,038,483 |  |  | 44,543 |  |  | 10,880 |  |  | 1,093,906 |
December 31, 2017 | 1,300,758 |  |  | 50,779 |  |  | 12,798 |  |  | 1,364,335 |
December 31, 2018 | 1,503,441 |  |  | 37,746 |  |  | 6,950 |  |  | 1,548,137 |
December 31, 2019 | 1,684,209 |  |  | 29,886 |  |  | 7,117 |  |  | 1,721,212 |
NET PROVED UNDEVELOPED RESERVES |  |  |  |  |  |  |  |  |  |  |
Crude Oil (MBbl) |  |  |  |  |  |  |  |  |  |  |
December 31, 2016 | 660,690 |  |  | — |  |  | — |  |  | 660,690 |
December 31, 2017 | 698,666 |  |  | — |  |  | 71 |  |  | 698,737 |
December 31, 2018 | 819,466 |  |  | — |  |  | 61 |  |  | 819,527 |
December 31, 2019 | 892,771 |  |  | — |  |  | 48 |  |  | 892,819 |
Natural Gas Liquids (MBbl) |  |  |  |  |  |  |  |  |  |  |
December 31, 2016 | 186,147 |  |  | — |  |  | — |  |  | 186,147 |
December 31, 2017 | 216,601 |  |  | — |  |  | — |  |  | 216,601 |
December 31, 2018 | 272,943 |  |  | — |  |  | — |  |  | 272,943 |
December 31, 2019 | 352,439 |  |  | — |  |  | — |  |  | 352,439 |
Natural Gas (Bcf) |  |  |  |  |  |  |  |  |  |  |
December 31, 2016 | 1,216.8 |  |  | 18.7 |  |  | — |  |  | 1,235.5 |
December 31, 2017 | 1,447.7 |  |  | 14.2 |  |  | 21.9 |  |  | 1,483.8 |
December 31, 2018 | 1,691.6 |  |  | 13.1 |  |  | 18.7 |  |  | 1,723.4 |
December 31, 2019 | 2,060.2 |  |  | 98.4 |  |  | 17.0 |  |  | 2,175.6 |
Oil Equivalents (MBoe) |  |  |  |  |  |  |  |  |  |  |
December 31, 2016 | 1,049,909 |  |  | 3,118 |  |  | — |  |  | 1,053,027 |
December 31, 2017 | 1,156,544 |  |  | 2,363 |  |  | 3,728 |  |  | 1,162,635 |
December 31, 2018 | 1,374,337 |  |  | 2,190 |  |  | 3,182 |  |  | 1,379,709 |
December 31, 2019 | 1,588,569 |  |  | 16,412 |  |  | 2,875 |  |  | 1,607,856 |

(1) | Other International includes EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

F-44

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
Net Proved Undeveloped Reserves. The following table presents the changes in EOG's total proved undeveloped reserves during 2019, 2018 and 2017 (in MBoe):

| 2019 |  | 2018 |  | 2017
Balance at January 1 | 1,379,709 |  |  | 1,162,635 |  |  | 1,053,027 |
Extensions and Discoveries | 578,317 |  |  | 490,725 |  |  | 237,378 |
Revisions | (49,837 | ) |  | (8,244 | ) |  | 33,127 |
Acquisition of Reserves | 1,711 |  |  | 311 |  |  | — |
Sale of Reserves | — |  |  | — |  |  | (8,253 | )
Conversion to Proved Developed Reserves | (302,044 | ) |  | (265,718 | ) |  | (152,644 | )
Balance at December 31 | 1,607,856 |  |  | 1,379,709 |  |  | 1,162,635 |

For the twelve-month period ended December 31, 2019, total PUDs increased by 228 MMBoe to 1,608 MMBoe. EOG added approximately 38 MMBoe of PUDs through drilling activities where the wells were drilled but significant expenditures remained for completion. Based on the technology employed by EOG to identify and record PUDs (see discussion of technology employed on pages F-39 and F-40 of this Annual Report on Form 10-K), EOG added 540 MMBoe. The PUD additions were primarily in the Permian Basin, the Eagle Ford and, to a lesser extent, the Rocky Mountain area, and 73% of the additions were crude oil and condensate and NGLs. During 2019, EOG drilled and transferred 302 MMBoe of PUDs to proved developed reserves at a total capital cost of $3,032 million. All PUDs, including drilled but uncompleted wells (DUCs), are scheduled for completion within five years of the original reserve booking.
For the twelve-month period ended December 31, 2018, total PUDs increased by 217 MMBoe to 1,380 MMBoe. EOG added approximately 31 MMBoe of PUDs through drilling activities where the wells were drilled but significant expenditures remained for completion. Based on the technology employed by EOG to identify and record PUDs, EOG added 460 MMBoe. The PUD additions were primarily in the Permian Basin, Anadarko Basin, the Eagle Ford and, to a lesser extent, the Rocky Mountain area, and 80% of the additions were crude oil and condensate and NGLs. During 2018, EOG drilled and transferred 266 MMBoe of PUDs to proved developed reserves at a total capital cost of $2,745 million.
For the twelve-month period ended December 31, 2017, total PUDs increased by 110 MMBoe to 1,163 MMBoe. EOG added approximately 38 MMBoe of PUDs through drilling activities where the wells were drilled but significant expenditures remained for completion. Based on the technology employed by EOG to identify and record PUDs, EOG added 199 MMBoe. The PUD additions were primarily in the Permian Basin and, to a lesser extent, the Eagle Ford and the Rocky Mountain area, and 74% of the additions were crude oil and condensate and NGLs. During 2017, EOG drilled and transferred 153 MMBoe of PUDs to proved developed reserves at a total capital cost of $1,440 million. Revisions of PUDs totaled positive 33 MMBoe, primarily due to updated type curves resulting from improved performance of offsetting wells in the Permian Basin, the impact of increases in the average crude oil and natural gas prices used in the December 31, 2017, reserves estimation as compared to the prices used in the prior year estimate, and lower costs. During 2017, EOG sold or exchanged 8 MMBoe of PUDs primarily in the Permian Basin.
F-45

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
Capitalized Costs Relating to Oil and Gas Producing Activities. The following table sets forth the capitalized costs relating to EOG's crude oil, NGLs and natural gas producing activities at December 31, 2019 and 2018:

| 2019 |  | 2018
Proved properties | $ | 59,229,686 |  |  | $ | 53,624,809 |
Unproved properties | 3,600,729 |  |  | 3,705,207 |
Total | 62,830,415 |  |  | 57,330,016 |
Accumulated depreciation, depletion and amortization | (35,033,085 | ) |  | (31,674,085 | )
Net capitalized costs | $ | 27,797,330 |  |  | $ | 25,655,931 |

Costs Incurred in Oil and Gas Property Acquisition, Exploration and Development Activities. The acquisition, exploration and development costs disclosed in the following tables are in accordance with definitions in the Extractive Industries - Oil and Gas Topic of the Accounting Standards Codification (ASC).
Acquisition costs include costs incurred to purchase, lease or otherwise acquire property.
Exploration costs include additions to exploratory wells, including those in progress, and exploration expenses.
Development costs include additions to production facilities and equipment and additions to development wells, including those in progress.
F-46

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following table sets forth costs incurred related to EOG's oil and gas activities for the years ended December 31, 2019, 2018 and 2017:

| United States |  | Trinidad |  | Other International (1) |  | Total
2019 |  |  |  |  |  |  |
Acquisition Costs of Properties |  |  |  |  |  |  |
Unproved (2) | $ | 276,092 |  |  | $ | — |  |  | $ | — |  |  | $ | 276,092 |
Proved (3) | 379,938 |  |  | — |  |  | — |  |  | 379,938 |
Subtotal | 656,030 |  |  | — |  |  | — |  |  | 656,030 |
Exploration Costs | 213,505 |  |  | 46,616 |  |  | 13,218 |  |  | 273,339 |
Development Costs (4) | 5,661,753 |  |  | 25,007 |  |  | 12,096 |  |  | 5,698,856 |
Total | $ | 6,531,288 |  |  | $ | 71,623 |  |  | $ | 25,314 |  |  | $ | 6,628,225 |
2018 |  |  |  |  |  |  |  |  |  |  |
Acquisition Costs of Properties |  |  |  |  |  |  |  |  |  |  |
Unproved (5) | $ | 486,081 |  |  | $ | 1,258 |  |  | $ | — |  |  | $ | 487,339 |
Proved (6) | 123,684 |  |  | — |  |  | — |  |  | 123,684 |
Subtotal | 609,765 |  |  | 1,258 |  |  | — |  |  | 611,023 |
Exploration Costs | 157,222 |  |  | 22,511 |  |  | 13,895 |  |  | 193,628 |
Development Costs (7) | 5,605,264 |  |  | (12,863 | ) |  | 22,628 |  |  | 5,615,029 |
Total | $ | 6,372,251 |  |  | $ | 10,906 |  |  | $ | 36,523 |  |  | $ | 6,419,680 |
2017 |  |  |  |  |  |  |  |  |  |  |
Acquisition Costs of Properties |  |  |  |  |  |  |  |  |  |  |
Unproved (8) | $ | 424,118 |  |  | $ | 2,422 |  |  | $ | — |  |  | $ | 426,540 |
Proved (9) | 72,584 |  |  | — |  |  | — |  |  | 72,584 |
Subtotal | 496,702 |  |  | 2,422 |  |  | — |  |  | 499,124 |
Exploration Costs | 144,499 |  |  | 62,547 |  |  | 16,553 |  |  | 223,599 |
Development Costs (10) | 3,590,899 |  |  | 109,491 |  |  | 16,297 |  |  | 3,716,687 |
Total | $ | 4,232,100 |  |  | $ | 174,460 |  |  | $ | 32,850 |  |  | $ | 4,439,410 |

(1) | Other International primarily consists of EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

(2) | Includes non-cash unproved leasehold acquisition costs of $98 million related to property exchanges.

(3) | Includes non-cash proved property acquisition costs of $52 million related to property exchanges.

(4) | Includes Asset Retirement Costs of $181 million, $1 million and $4 million for the United States, Trinidad and Other International, respectively. Excludes other property, plant and equipment.

(5) | Includes non-cash unproved leasehold acquisition costs of $291 million related to property exchanges.

(6) | Includes non-cash proved property acquisition costs of $71 million related to property exchanges.

(7) | Includes Asset Retirement Costs of $90 million, $(12) million and $(8) million for the United States, Trinidad and Other International, respectively. Excludes other property, plant and equipment.

(8) | Includes non-cash unproved leasehold acquisition costs of $256 million related to property exchanges.

(9) | Includes non-cash proved property acquisition costs of $26 million related to property exchanges.

(10) | Includes Asset Retirement Costs of $50 million, $2 million and $4 million for the United States, Trinidad and Other International, respectively. Excludes other property, plant and equipment.

F-47

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
Results of Operations for Oil and Gas Producing Activities (1). The following table sets forth results of operations for oil and gas producing activities for the years ended December 31, 2019, 2018 and 2017:

| United States |  | Trinidad |  | Other International (2) |  | Total
2019 |  |  |  |  |  |  |
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues | $ | 11,250,853 |  |  | $ | 269,957 |  |  | $ | 60,635 |  |  | $ | 11,581,445 |
Other | 134,325 |  |  | 18 |  |  | 15 |  |  | 134,358 |
Total | 11,385,178 |  |  | 269,975 |  |  | 60,650 |  |  | 11,715,803 |
Exploration Costs | 130,302 |  |  | 4,290 |  |  | 5,289 |  |  | 139,881 |
Dry Hole Costs | 11,133 |  |  | 13,033 |  |  | 3,835 |  |  | 28,001 |
Transportation Costs | 753,558 |  |  | 4,014 |  |  | 728 |  |  | 758,300 |
Gathering and Processing Costs | 479,102 |  |  | — |  |  | — |  |  | 479,102 |
Production Costs | 2,063,078 |  |  | 30,539 |  |  | 40,369 |  |  | 2,133,986 |
Impairments | 510,948 |  |  | 5,713 |  |  | 1,235 |  |  | 517,896 |
Depreciation, Depletion and Amortization | 3,560,609 |  |  | 79,156 |  |  | 17,832 |  |  | 3,657,597 |
Income (Loss) Before Income Taxes | 3,876,448 |  |  | 133,230 |  |  | (8,638 | ) |  | 4,001,040 |
Income Tax Provision | 884,450 |  |  | 54,980 |  |  | 3,152 |  |  | 942,582 |
Results of Operations | $ | 2,991,998 |  |  | $ | 78,250 |  |  | $ | (11,790 | ) |  | $ | 3,058,458 |
2018 |  |  |  |  |  |  |  |  |  |  |
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues | $ | 11,488,620 |  |  | $ | 302,112 |  |  | $ | 155,755 |  |  | $ | 11,946,487 |
Other | 89,708 |  |  | (49 | ) |  | (24 | ) |  | 89,635 |
Total | 11,578,328 |  |  | 302,063 |  |  | 155,731 |  |  | 12,036,122 |
Exploration Costs | 121,572 |  |  | 21,402 |  |  | 6,025 |  |  | 148,999 |
Dry Hole Costs | 4,983 |  |  | — |  |  | 422 |  |  | 5,405 |
Transportation Costs | 742,792 |  |  | 3,236 |  |  | 848 |  |  | 746,876 |
Gathering and Processing Costs (3) | 404,471 |  |  | — |  |  | 32,502 |  |  | 436,973 |
Production Costs | 1,924,504 |  |  | 33,506 |  |  | 70,073 |  |  | 2,028,083 |
Impairments | 344,595 |  |  | — |  |  | 2,426 |  |  | 347,021 |
Depreciation, Depletion and Amortization | 3,181,801 |  |  | 91,788 |  |  | 46,687 |  |  | 3,320,276 |
Income (Loss) Before Income Taxes | 4,853,610 |  |  | 152,131 |  |  | (3,252 | ) |  | 5,002,489 |
Income Tax Provision | 1,086,077 |  |  | 12,170 |  |  | 1,898 |  |  | 1,100,145 |
Results of Operations | $ | 3,767,533 |  |  | $ | 139,961 |  |  | $ | (5,150 | ) |  | $ | 3,902,344 |
2017 |  |  |  |  |  |  |  |  |  |  |
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues | $ | 7,570,768 |  |  | $ | 284,673 |  |  | $ | 52,450 |  |  | $ | 7,907,891 |
Other | 81,610 |  |  | 59 |  |  | (59 | ) |  | 81,610 |
Total | 7,652,378 |  |  | 284,732 |  |  | 52,391 |  |  | 7,989,501 |
Exploration Costs | 113,334 |  |  | 26,245 |  |  | 5,763 |  |  | 145,342 |
Dry Hole Costs | 91 |  |  | — |  |  | 4,518 |  |  | 4,609 |
Transportation Costs | 737,403 |  |  | 1,885 |  |  | 1,064 |  |  | 740,352 |
Production Costs | 1,446,333 |  |  | 27,839 |  |  | 88,038 |  |  | 1,562,210 |
Impairments | 477,223 |  |  | — |  |  | 2,017 |  |  | 479,240 |
Depreciation, Depletion and Amortization | 3,157,056 |  |  | 115,174 |  |  | 24,536 |  |  | 3,296,766 |
Income (Loss) Before Income Taxes | 1,720,938 |  |  | 113,589 |  |  | (73,545 | ) |  | 1,760,982 |
Income Tax Provision (Benefit) | 625,562 |  |  | 24,882 |  |  | (1,342 | ) |  | 649,102 |
Results of Operations | $ | 1,095,376 |  |  | $ | 88,707 |  |  | $ | (72,203 | ) |  | $ | 1,111,880 |

(1) | Excludes gains or losses on the mark-to-market of financial commodity derivative contracts, gains or losses on sales of reserves and related assets, interest charges and general corporate expenses for each of the three years in the period ended December 31, 2019.

(2) | Other International primarily consists of EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

(3) | Effective January 1, 2018, EOG adopted the provisions of Accounting Standards Update (ASU) 2014-09, "Revenue From Contracts With Customers" (ASU 2014-09). In connection with the adoption of ASU 2014-09, EOG presents natural gas processing fees relating to certain processing and marketing agreements within its United States segment as Gathering and Processing Costs instead of as a deduction to Natural Gas Revenues. There was no impact to operating income or net income resulting from changes to the presentation of natural gas processing fees (see Note 1 to Consolidated Financial Statements).

F-48

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following table sets forth production costs per barrel of oil equivalent, excluding severance/production and ad valorem taxes, for the years ended December 31, 2019, 2018 and 2017:

| United States |  | Trinidad |  | Other International (1) |  | Composite
Year Ended December 31, 2019 | $ | 4.59 |  |  | $ | 1.85 |  |  | $ | 18.26 |  |  | $ | 4.54 |
Year Ended December 31, 2018 | $ | 4.84 |  |  | $ | 1.67 |  |  | $ | 20.19 |  |  | $ | 4.84 |
Year Ended December 31, 2017 | $ | 4.58 |  |  | $ | 1.39 |  |  | $ | 50.86 |  |  | $ | 4.66 |

(1) | Other International primarily consists of EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves. The following information has been developed utilizing procedures prescribed by the Extractive Industries - Oil and Gas Topic of the ASC and based on crude oil, NGL and natural gas reserves and production volumes estimated by the Engineering and Acquisitions Department of EOG. The estimates were based on a 12-month average for commodity prices for the years 2019, 2018 and 2017. The following information may be useful for certain comparative purposes, but should not be solely relied upon in evaluating EOG or its performance. Further, information contained in the following table should not be considered as representative of realistic assessments of future cash flows, nor should the Standardized Measure of Discounted Future Net Cash Flows be viewed as representative of the current value of EOG.
The future cash flows presented below are based on sales prices, cost rates and statutory income tax rates in existence as of the date of the projections. It is expected that material revisions to some estimates of crude oil, NGL and natural gas reserves may occur in the future, development and production of the reserves may occur in periods other than those assumed, and actual prices realized and costs incurred may vary significantly from those used.
Management does not rely upon the following information in making investment and operating decisions. Such decisions are based upon a wide range of factors, including estimates of probable and possible reserves as well as proved reserves, and varying price and cost assumptions considered more representative of a range of possible economic conditions that may be anticipated.
F-49

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
The following table sets forth the standardized measure of discounted future net cash flows from projected production of EOG's oil and gas reserves for the years ended December 31, 2019, 2018 and 2017:

| United States |  | Trinidad |  | Other International (1) |  | Total
2019 |  |  |  |  |  |  |
Future cash inflows (2) | $ | 120,359,769 |  |  | $ | 813,102 |  |  | $ | 305,491 |  |  | $ | 121,478,362 |
Future production costs | (42,387,801 | ) |  | (166,705 | ) |  | (87,381 | ) |  | (42,641,887 | )
Future development costs | (20,355,746 | ) |  | (212,303 | ) |  | (18,400 | ) |  | (20,586,449 | )
Future income taxes | (11,459,567 | ) |  | (73,508 | ) |  | (32,423 | ) |  | (11,565,498 | )
Future net cash flows | 46,156,655 |  |  | 360,586 |  |  | 167,287 |  |  | 46,684,528 |
Discount to present value at 10% annual rate | (21,042,593 | ) |  | (86,009 | ) |  | (35,161 | ) |  | (21,163,763 | )
Standardized measure of discounted future net cash flows relating to proved oil and gas reserves | $ | 25,114,062 |  |  | $ | 274,577 |  |  | $ | 132,126 |  |  | $ | 25,520,765 |
2018 |  |  |  |  |  |  |  |  |  |  |
Future cash inflows (3) | $ | 133,066,375 |  |  | $ | 749,695 |  |  | $ | 303,620 |  |  | $ | 134,119,690 |
Future production costs | (42,351,174 | ) |  | (204,444 | ) |  | (99,024 | ) |  | (42,654,642 | )
Future development costs | (16,577,794 | ) |  | (78,199 | ) |  | (11,900 | ) |  | (16,667,893 | )
Future income taxes | (14,756,011 | ) |  | (174,382 | ) |  | (31,748 | ) |  | (14,962,141 | )
Future net cash flows | 59,381,396 |  |  | 292,670 |  |  | 160,948 |  |  | 59,835,014 |
Discount to present value at 10% annual rate | (27,348,744 | ) |  | (26,832 | ) |  | (33,483 | ) |  | (27,409,059 | )
Standardized measure of discounted future net cash flows relating to proved oil and gas reserves | $ | 32,032,652 |  |  | $ | 265,838 |  |  | $ | 127,465 |  |  | $ | 32,425,955 |
2017 |  |  |  |  |  |  |  |  |  |  |
Future cash inflows (4) | $ | 83,652,363 |  |  | $ | 904,141 |  |  | $ | 664,560 |  |  | $ | 85,221,064 |
Future production costs | (32,018,812 | ) |  | (239,213 | ) |  | (311,383 | ) |  | (32,569,408 | )
Future development costs | (13,395,873 | ) |  | (84,379 | ) |  | (58,543 | ) |  | (13,538,795 | )
Future income taxes | (5,948,453 | ) |  | (195,855 | ) |  | (16,233 | ) |  | (6,160,541 | )
Future net cash flows | 32,289,225 |  |  | 384,694 |  |  | 278,401 |  |  | 32,952,320 |
Discount to present value at 10% annual rate | (14,532,290 | ) |  | (52,267 | ) |  | (40,103 | ) |  | (14,624,660 | )
Standardized measure of discounted future net cash flows relating to proved oil and gas reserves | $ | 17,756,935 |  |  | $ | 332,427 |  |  | $ | 238,298 |  |  | $ | 18,327,660 |

(1) | Other International includes EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

(2) | Estimated crude oil prices used to calculate 2019 future cash inflows for the United States, Trinidad and Other International were $57.51, $46.77, and $57.22, respectively. Estimated NGL price used to calculate 2019 future cash inflows for the United States was $16.91. Estimated natural gas prices used to calculate 2019 future cash inflows for the United States, Trinidad and Other International were $2.07, $2.90, and $5.01, respectively.

(3) | Estimated crude oil prices used to calculate 2018 future cash inflows for the United States, Trinidad and Other International were $68.54, $55.66 and $61.66, respectively. Estimated NGL price used to calculate 2018 future cash inflows for the United States was $27.83. Estimated natural gas prices used to calculate 2018 future cash inflows for the United States, Trinidad and Other International were $2.50, $3.06 and $4.88, respectively.

(4) | Estimated crude oil prices used to calculate 2017 future cash inflows for the United States, Trinidad and Other International were $49.21, $41.87 and $50.06, respectively. Estimated NGL price used to calculate 2017 future cash inflows for the United States was $23.51. Estimated natural gas prices used to calculate 2017 future cash inflows for the United States, Trinidad and Other International were $1.96, $2.76 and $5.16, respectively.

F-50

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)
Changes in Standardized Measure of Discounted Future Net Cash Flows. The following table sets forth the changes in the standardized measure of discounted future net cash flows at December 31, for each of the three years in the period ended December 31, 2019:

| United States |  | Trinidad |  | Other International (1) |  | Total
December 31, 2016 | $ | 8,493,727 |  |  | $ | 185,750 |  |  | $ | 132,680 |  |  | $ | 8,812,157 |
Sales and transfers of oil and gas produced, net of production costs | (5,387,031 | ) |  | (254,948 | ) |  | 36,649 |  |  | (5,605,330 | )
Net changes in prices and production costs | 6,606,908 |  |  | 436,969 |  |  | 77,668 |  |  | 7,121,545 |
Extensions, discoveries, additions and improved recovery, net of related costs | 3,644,041 |  |  | 270,255 |  |  | 43,952 |  |  | 3,958,248 |
Development costs incurred | 1,435,600 |  |  | 4,700 |  |  | — |  |  | 1,440,300 |
Revisions of estimated development cost | (114,464 | ) |  | 9,683 |  |  | (20,096 | ) |  | (124,877 | )
Revisions of previous quantity estimates | 2,460,498 |  |  | (58,373 | ) |  | 36,146 |  |  | 2,438,271 |
Accretion of discount | 849,373 |  |  | 24,066 |  |  | 13,268 |  |  | 886,707 |
Net change in income taxes | (1,918,989 | ) |  | (114,575 | ) |  | (10,099 | ) |  | (2,043,663 | )
Purchases of reserves in place | 30,362 |  |  | — |  |  | — |  |  | 30,362 |
Sales of reserves in place | (76,527 | ) |  | — |  |  | — |  |  | (76,527 | )
Changes in timing and other | 1,733,437 |  |  | (171,100 | ) |  | (71,870 | ) |  | 1,490,467 |
December 31, 2017 | 17,756,935 |  |  | 332,427 |  |  | 238,298 |  |  | 18,327,660 |
Sales and transfers of oil and gas produced, net of production costs | (8,416,853 | ) |  | (265,370 | ) |  | (52,399 | ) |  | (8,734,622 | )
Net changes in prices and production costs | 12,750,466 |  |  | 84,353 |  |  | 21,610 |  |  | 12,856,429 |
Extensions, discoveries, additions and improved recovery, net of related costs | 8,418,666 |  |  | — |  |  | 12,287 |  |  | 8,430,953 |
Development costs incurred | 2,732,560 |  |  | — |  |  | 12,600 |  |  | 2,745,160 |
Revisions of estimated development cost | (410,741 | ) |  | 4,030 |  |  | (3,814 | ) |  | (410,525 | )
Revisions of previous quantity estimates | (173,084 | ) |  | 39,608 |  |  | 31,750 |  |  | (101,726 | )
Accretion of discount | 1,967,592 |  |  | 50,191 |  |  | 24,839 |  |  | 2,042,622 |
Net change in income taxes | (4,965,373 | ) |  | 3,844 |  |  | (11,529 | ) |  | (4,973,058 | )
Purchases of reserves in place | 116,887 |  |  | — |  |  | — |  |  | 116,887 |
Sales of reserves in place | (35,874 | ) |  | — |  |  | (82,058 | ) |  | (117,932 | )
Changes in timing and other | 2,291,471 |  |  | 16,755 |  |  | (64,119 | ) |  | 2,244,107 |
December 31, 2018 | 32,032,652 |  |  | 265,838 |  |  | 127,465 |  |  | 32,425,955 |
Sales and transfers of oil and gas produced, net of production costs | (7,955,115 | ) |  | (235,404 | ) |  | (19,919 | ) |  | (8,210,438 | )
Net changes in prices and production costs | (10,973,981 | ) |  | 65,962 |  |  | 27,572 |  |  | (10,880,447 | )
Extensions, discoveries, additions and improved recovery, net of related costs | 5,608,038 |  |  | 85,233 |  |  | 16,287 |  |  | 5,709,558 |
Development costs incurred | 3,003,510 |  |  | 22,820 |  |  | 5,820 |  |  | 3,032,150 |
Revisions of estimated development cost | (597,869 | ) |  | (129,047 | ) |  | (11,108 | ) |  | (738,024 | )
Revisions of previous quantity estimates | (812,781 | ) |  | 116,062 |  |  | 1,198 |  |  | (695,521 | )
Accretion of discount | 3,891,701 |  |  | 43,148 |  |  | 14,909 |  |  | 3,949,758 |
Net change in income taxes | 1,454,050 |  |  | 93,975 |  |  | 682 |  |  | 1,548,707 |
Purchases of reserves in place | 98,539 |  |  | — |  |  | — |  |  | 98,539 |
Sales of reserves in place | (50,651 | ) |  | — |  |  | — |  |  | (50,651 | )
Changes in timing and other | (584,031 | ) |  | (54,010 | ) |  | (30,780 | ) |  | (668,821 | )
December 31, 2019 | $ | 25,114,062 |  |  | $ | 274,577 |  |  | $ | 132,126 |  |  | $ | 25,520,765 |

(1) | Other International includes EOG's United Kingdom, China and Canada operations. The United Kingdom operations were sold in the fourth quarter of 2018.

F-51

EOG RESOURCES, INC.
SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Concluded)
Unaudited Quarterly Financial Information
(In Thousands, Except Per Share Data)

Quarter Ended | Mar 31 |  | Jun 30 |  | Sep 30 |  | Dec 31
2019 |  |  |  |  |  |  |
Operating Revenues and Other | $ | 4,058,642 |  |  | $ | 4,697,630 |  |  | $ | 4,303,455 |  |  | $ | 4,320,246 |
Operating Income | $ | 876,530 |  |  | $ | 1,130,771 |  |  | $ | 827,959 |  |  | $ | 863,751 |
Income Before Income Taxes | $ | 827,236 |  |  | $ | 1,089,366 |  |  | $ | 797,457 |  |  | $ | 831,208 |
Income Tax Provision | 191,810 |  |  | 241,525 |  |  | 182,335 |  |  | 194,687 |
Net Income | $ | 635,426 |  |  | $ | 847,841 |  |  | $ | 615,122 |  |  | $ | 636,521 |
Net Income Per Share (1) |  |  |  |  |  |  |  |  |  |  |
Basic | $ | 1.10 |  |  | $ | 1.47 |  |  | $ | 1.06 |  |  | $ | 1.10 |
Diluted | $ | 1.10 |  |  | $ | 1.46 |  |  | $ | 1.06 |  |  | $ | 1.10 |
Average Number of Common Shares |  |  |  |  |  |  |  |  |  |  |
Basic | 577,207 |  |  | 577,460 |  |  | 577,839 |  |  | 578,219 |
Diluted | 580,222 |  |  | 580,247 |  |  | 581,271 |  |  | 580,849 |
2018 |  |  |  |  |  |  |  |  |  |  |
Operating Revenues and Other | $ | 3,681,162 |  |  | $ | 4,238,077 |  |  | $ | 4,781,624 |  |  | $ | 4,574,536 |
Operating Income | $ | 874,588 |  |  | $ | 964,931 |  |  | $ | 1,506,687 |  |  | $ | 1,123,140 |
Income Before Income Taxes | $ | 813,359 |  |  | $ | 892,936 |  |  | $ | 1,446,363 |  |  | $ | 1,088,340 |
Income Tax Provision | 174,770 |  |  | 196,205 |  |  | 255,411 |  |  | 195,572 |
Net Income | $ | 638,589 |  |  | $ | 696,731 |  |  | $ | 1,190,952 |  |  | $ | 892,768 |
Net Income Per Share (1) |  |  |  |  |  |  |  |  |  |  |
Basic | $ | 1.11 |  |  | $ | 1.21 |  |  | $ | 2.06 |  |  | $ | 1.55 |
Diluted | $ | 1.10 |  |  | $ | 1.20 |  |  | $ | 2.05 |  |  | $ | 1.54 |
Average Number of Common Shares |  |  |  |  |  |  |  |  |  |  |
Basic | 575,775 |  |  | 576,135 |  |  | 577,254 |  |  | 577,035 |
Diluted | 579,726 |  |  | 580,375 |  |  | 581,559 |  |  | 580,288 |

(1) | The sum of quarterly net income per share may not agree with total year net income per share as each quarterly computation is based on the weighted average of common shares outstanding.

F-52

EXHIBITS
Exhibits not incorporated herein by reference to a prior filing are designated by (i) an asterisk (*) and are filed herewith; or (ii) a pound sign (#) and are not filed herewith, and, pursuant to Item 601(b)(4)(iii)(A) of Regulation S-K, the registrant hereby agrees to furnish a copy of such exhibit to the United States Securities and Exchange Commission (SEC) upon request.

Exhibit Number |  | Description
3.1(a) | - | Restated Certificate of Incorporation, dated September 3, 1987 (Exhibit 3.1(a) to EOG's Annual Report on Form 10-K for the year ended December 31, 2008) (SEC File No. 001-09743).
3.1(b) | - | Certificate of Amendment of Restated Certificate of Incorporation, dated May 5, 1993 (Exhibit 4.1(b) to EOG's Registration Statement on Form S-8, SEC File No. 33-52201, filed February 8, 1994).
3.1(c) | - | Certificate of Amendment of Restated Certificate of Incorporation, dated June 14, 1994 (Exhibit 4.1(c) to EOG's Registration Statement on Form S-8, SEC File No. 33-58103, filed March 15, 1995).
3.1(d) | - | Certificate of Amendment of Restated Certificate of Incorporation, dated June 11, 1996 (Exhibit 3(d) to EOG's Registration Statement on Form S-3, SEC File No. 333-09919, filed August 9, 1996).
3.1(e) | - | Certificate of Amendment of Restated Certificate of Incorporation, dated May 7, 1997 (Exhibit 3(e) to EOG's Registration Statement on Form S-3, SEC File No. 333-44785, filed January 23, 1998).
3.1(f) | - | Certificate of Ownership and Merger Merging EOG Resources, Inc. into Enron Oil & Gas Company, dated August 26, 1999 (Exhibit 3.1(f) to EOG's Annual Report on Form 10-K for the year ended December 31, 1999) (SEC File No. 001-09743).
3.1(g) | - | Certificate of Designations of Series E Junior Participating Preferred Stock, dated February 14, 2000 (Exhibit 2 to EOG's Registration Statement on Form 8-A, SEC File No. 001-09743, filed February 18, 2000).
3.1(h) | - | Certificate of Elimination of the Fixed Rate Cumulative Perpetual Senior Preferred Stock, Series A, dated September 13, 2000 (Exhibit 3.1(j) to EOG's Registration Statement on Form S-3, SEC File No. 333-46858, filed September 28, 2000).
3.1(i) | - | Certificate of Elimination of the Flexible Money Market Cumulative Preferred Stock, Series C, dated September 13, 2000 (Exhibit 3.1(k) to EOG's Registration Statement on Form S-3, SEC File No. 333-46858, filed September 28, 2000).
3.1(j) | - | Certificate of Elimination of the Flexible Money Market Cumulative Preferred Stock, Series D, dated February 24, 2005 (Exhibit 3.1(k) to EOG's Annual Report on Form 10-K for the year ended December 31, 2004) (SEC File No. 001-09743).
3.1(k) | - | Amended Certificate of Designations of Series E Junior Participating Preferred Stock, dated March 7, 2005 (Exhibit 3.1(m) to EOG's Annual Report on Form 10-K for the year ended December 31, 2007) (SEC File No. 001-09743).
3.1(l) | - | Certificate of Amendment of Restated Certificate of Incorporation, dated May 3, 2005 (Exhibit 3.1(l) to EOG's Quarterly Report on Form 10-Q for the quarter ended June 30, 2005) (SEC File No. 001-09743).
3.1(m) | - | Certificate of Elimination of Fixed Rate Cumulative Perpetual Senior Preferred Stock, Series B, dated March 6, 2008 (Exhibit 3.1 to EOG's Current Report on Form 8-K, filed March 6, 2008) (SEC File No. 001-09743).
3.1(n) | - | Certificate of Amendment of Restated Certificate of Incorporation, dated April 28, 2017 (Exhibit 3.1 to EOG's Current Report on Form 8-K, filed May 2, 2017) (SEC File No. 001-09743).
3.2 | - | Bylaws, dated August 23, 1989, as amended and restated effective as of September 22, 2015 (Exhibit 3.1 to EOG's Current Report on Form 8-K, filed September 28, 2015) (SEC File No. 001-09743).
*4.1 | - | Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934.
4.2 | - | Specimen of Certificate evidencing EOG's Common Stock (Exhibit 3.3 to EOG's Annual Report on Form 10-K for the year ended December 31, 1999) (SEC File No. 001-09743).
4.3 | - | Indenture, dated as of September 1, 1991, between Enron Oil & Gas Company (predecessor to EOG) and The Bank of New York Mellon Trust Company, N.A. (as successor in interest to JPMorgan Chase Bank, N.A. (formerly, Texas Commerce Bank National Association)), as Trustee (Exhibit 4(a) to EOG's Registration Statement on Form S-3, SEC File No. 33-42640, filed in paper format on September 6, 1991).

E-1

Exhibit Number |  | Description
#4.4(a) | - | Certificate, dated April 3, 1998, of the Senior Vice President and Chief Financial Officer of Enron Oil & Gas Company (predecessor to EOG) establishing the terms of the 6.65% Notes due April 1, 2028 of Enron Oil & Gas Company.
#4.4(b) | - | Global Note with respect to the 6.65% Notes due April 1, 2028 of Enron Oil & Gas Company (predecessor to EOG).
4.5 | - | Indenture, dated as of May 18, 2009, between EOG and Wells Fargo Bank, National Association, as Trustee (Exhibit 4.9 to EOG's Registration Statement on Form S-3, SEC File No. 333-159301, filed May 18, 2009).
4.6(a) | - | Officers' Certificate Establishing 2.95% Senior Notes due 2015 and 4.40% Senior Notes due 2020 of EOG, dated May 20, 2010 (Exhibit 4.2 to EOG's Current Report on Form 8-K, filed May 26, 2010) (SEC File No. 001-09743).
4.6(b) | - | Form of Global Note with respect to the 4.40% Senior Notes due 2020 of EOG (Exhibit 4.4 to EOG's Current Report on Form 8-K, filed May 26, 2010) (SEC File No. 001-09743).
4.7(a) | - | Officers' Certificate Establishing 2.500% Senior Notes due 2016, 4.100% Senior Notes due 2021 and Floating Rate Senior Notes due 2014 of EOG, dated November 23, 2010 (Exhibit 4.2 to EOG's Current Report on Form 8-K, filed November 24, 2010) (SEC File No. 001-09743).
4.7(b) | - | Form of Global Note with respect to the 4.100% Senior Notes due 2021 of EOG (Exhibit 4.4 to EOG's Current Report on Form 8-K, filed November 24, 2010) (SEC File No. 001-09743).
4.8(a) | - | Officers' Certificate Establishing 2.625% Senior Notes due 2023 of EOG, dated September 10, 2012 (Exhibit 4.2 to EOG's Current Report on Form 8-K, filed September 11, 2012) (SEC File No. 001-09743).
4.8(b) | - | Form of Global Note with respect to the 2.625% Senior Notes due 2023 of EOG (Exhibit 4.3 to EOG's Current Report on Form 8-K, filed September 11, 2012) (SEC File No. 001-09743).
4.9(a) | - | Officers' Certificate Establishing 2.45% Senior Notes due 2020 of EOG, dated March 21, 2014 (Exhibit 4.2 to EOG's Current Report on Form 8-K, filed March 25, 2014) (SEC File No. 001-09743).
4.9(b) | - | Form of Global Note with respect to the 2.45% Senior Notes due 2020 of EOG (Exhibit 4.3 to EOG's Current Report on Form 8-K, filed March 25, 2014) (SEC File No. 001-09743).
4.10(a) | - | Officers' Certificate Establishing 3.15% Senior Notes due 2025 and 3.90% Senior Notes due 2035 of EOG, dated March 17, 2015 (Exhibit 4.2 to EOG's Current Report on Form 8-K, filed March 19, 2015) (SEC File No. 001-09743).
4.10(b) | - | Form of Global Note with respect to the 3.15% Senior Notes due 2025 of EOG (Exhibit 4.3 to EOG's Current Report on Form 8-K, filed March 19, 2015) (SEC File No. 001-09743).
4.10(c) | - | Form of Global Note with respect to the 3.90% Senior Notes due 2035 of EOG (Exhibit 4.4 to EOG's Current Report on Form 8-K, filed March 19, 2015) (SEC File No. 001-09743).
4.11(a) | - | Officers' Certificate Establishing 4.15% Senior Notes due 2026 and 5.10% Senior Notes due 2036 of EOG, dated January 14, 2016 (Exhibit 4.2 to EOG's Current Report on Form 8-K, filed January 15, 2016) (SEC File No. 001-09743).
4.11(b) | - | Form of Global Note with respect to the 4.15% Senior Notes due 2026 of EOG (Exhibit 4.3 to EOG's Current Report on Form 8-K, filed January 15, 2016) (SEC File No. 001-09743).
4.11(c) | - | Form of Global Note with respect to the 5.10% Senior Notes due 2036 of EOG (Exhibit 4.4 to EOG's Current Report on Form 8-K, filed January 15, 2016) (SEC File No. 001-09743).
10.1(a)+ | - | EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan, effective as of May 8, 2008 (Exhibit 10.1 to EOG's Current Report on Form 8-K, filed May 14, 2008) (SEC File No. 001-09743).
10.1(b)+ | - | First Amendment to EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan, dated effective as of September 4, 2008 (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2008) (SEC File No. 001-09743).
10.1(c)+ | - | Second Amendment to EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan, dated effective as of January 1, 2010 (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2010) (SEC File No. 001-09743).

E-2

Exhibit Number |  | Description
10.1(d)+ | - | Third Amendment to EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan, dated effective as of September 26, 2012 (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2012) (SEC File No. 001-09743).
10.1(e)+ | - | Form of Stock Option Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made prior to February 23, 2011) (Exhibit 10.2 to EOG's Current Report on Form 8-K, filed May 14, 2008) (SEC File No. 001-09743).
10.1(f)+ | - | Form of Stock Option Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made on or after February 23, 2011) (Exhibit 10.3 to EOG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011) (SEC File No. 001-09743).
10.1(g)+ | - | Form of Stock-Settled Stock Appreciation Right Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made prior to February 23, 2011) (Exhibit 10.3 to EOG's Current Report on Form 8-K, filed May 14, 2008) (SEC File No. 001-09743).
10.1(h)+ | - | Form of Stock-Settled Stock Appreciation Right Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made on or after February 23, 2011) (Exhibit 10.4 to EOG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011) (SEC File No. 001-09743).
10.1(i) | - | Form of Nonemployee Director Stock-Settled Stock Appreciation Right Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Exhibit 10.4 to EOG's Current Report on Form 8-K, filed May 14, 2008) (SEC File No. 001-09743).
10.1(j)+ | - | Form of Restricted Stock Award Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Exhibit 10.5 to EOG's Current Report on Form 8-K, filed May 14, 2008) (SEC File No. 001-09743).
10.1(k)+ | - | Form of Restricted Stock Unit Award Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Exhibit 10.6 to EOG's Current Report on Form 8-K, filed May 14, 2008) (SEC File No. 001-09743).
10.1(l) | - | Form of Nonemployee Director Restricted Stock Award Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Exhibit 10.7 to EOG's Current Report on Form 8-K, filed May 14, 2008) (SEC File No. 001-09743).
10.1(m) | - | Form of Nonemployee Director Restricted Stock Unit Award Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Exhibit 10.3 to EOG's Quarterly Report on Form 10-Q for the quarter ended June 30, 2012) (SEC File No. 001-09743).
10.1(n)+ | - | Form of Performance Unit Award Agreement for EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Exhibit 10.4 to EOG's Current Report on Form 8-K, filed October 1, 2012) (SEC File No. 001-09743).
10.2(a)+ | - | Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan, effective as of May 2, 2013 (Exhibit 4.4 to EOG's Registration Statement on Form S-8, SEC File No. 333-188352, filed May 3, 2013).
10.2(b)+ | - | Form of Restricted Stock Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made prior to September 25, 2017) (Exhibit 4.5 to EOG's Registration Statement on Form S-8, SEC File No. 333-188352, filed May 3, 2013).
10.2(c)+ | - | Form of Restricted Stock Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made on or after September 25, 2017 and prior to September 27, 2018) (Exhibit 10.1 to EOG's Current Report on Form 8-K, filed September 29, 2017) (SEC File No. 001-09743).
10.2(d)+ | - | Form of Restricted Stock Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made effective September 27, 2018 and subsequent grants) (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2018) (SEC File No. 001-09743).
10.2(e)+ | - | Form of Restricted Stock Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made prior to September 25, 2017) (Exhibit 4.6 to EOG's Registration Statement on Form S-8, SEC File No. 333-188352, filed May 3, 2013).
10.2(f)+ | - | Form of Restricted Stock Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made on or after September 25, 2017 and prior to September 27, 2018) (Exhibit 10.2 to EOG's Current Report on Form 8-K, filed September 29, 2017) (SEC File No. 001-09743).

E-3

Exhibit Number |  | Description
10.2(g)+ | - | Form of Restricted Stock Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made effective September 27, 2018 and subsequent grants) (Exhibit 10.2 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2018) (SEC File No. 001-09743).
10.2(h)+ | - | Form of Stock-Settled Stock Appreciation Right Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made prior to September 25, 2017) (Exhibit 4.7 to EOG's Registration Statement on Form S-8, SEC File No. 333-188352, filed May 3, 2013).
10.2(i)+ | - | Form of Stock Settled Stock Appreciation Right Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made effective September 25, 2017 and subsequent grants) (Exhibit 10.4 to EOG's Current Report on Form 8-K, filed September 29, 2017) (SEC File No. 001-09743).
10.2(j)+ | - | Form of Performance Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made prior to September 22, 2014) (Exhibit 4.8 to EOG's Registration Statement on Form S-8, SEC File No. 333-188352, filed May 3, 2013).
10.2(k)+ | - | Form of Performance Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made on or after September 22, 2014 and prior to September 27, 2016) (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2014) (SEC File No. 001-09743).
10.2(l)+ | - | Form of Performance Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made on or after September 27, 2016 and prior to September 25, 2017) (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2016) (SEC File No. 001-09743).
10.2(m)+ | - | Form of Performance Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable only to grants made effective December 13, 2016) (Exhibit 10.1 to EOG's Current Report on Form 8-K, filed December 19, 2016) (SEC File No. 001-09743).
10.2(n)+ | - | Form of Performance Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made on or after September 25, 2017 and prior to September 27, 2018) (Exhibit 10.3 to EOG's Current Report on Form 8-K, filed September 29, 2017) (SEC File No. 001-09743).
10.2(o)+ | - | Form of Performance Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made effective September 27, 2018 and prior to September 26, 2019) (Exhibit 10.3 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2018) (SEC File No. 001-09743).
10.2(p)+ | - | Form of Performance Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made effective September 26, 2019 and subsequent grants) (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2019) (SEC File No. 001-09743).
10.2(q)+ | - | Form of Performance Stock Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Exhibit 4.9 to EOG's Registration Statement on Form S-8, SEC File No. 333-188352, filed May 3, 2013).
10.2(r) | - | Form of Non-Employee Director Restricted Stock Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made prior to May 6, 2019) (Exhibit 4.10 to EOG's Registration Statement on Form S-8, SEC File No. 333-188352, filed May 3, 2013).
10.2(s) | - | Form of Non-Employee Director Restricted Stock Unit Award Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (applicable to grants made effective May 6, 2019 and subsequent grants) (Exhibit 10.2 to EOG's Quarterly Report on Form 10-Q for the quarter ended June 30, 2019) (SEC File No. 001-09743).
10.2(t) | - | Form of Non-Employee Director Stock-Settled Stock Appreciation Right Agreement for Amended and Restated EOG Resources, Inc. 2008 Omnibus Equity Compensation Plan (Exhibit 4.11 to EOG's Registration Statement on Form S-8, SEC File No. 333-188352, filed May 3, 2013).
10.3(a)+ | - | EOG Resources, Inc. 409A Deferred Compensation Plan - Nonqualified Supplemental Deferred Compensation Plan - Plan Document, effective as of December 16, 2008 (Exhibit 10.2(a) to EOG's Annual Report on Form 10-K for the year ended December 31, 2008) (SEC File No. 001-09743).

E-4

Exhibit Number |  | Description
10.3(b)+ | - | EOG Resources, Inc. 409A Deferred Compensation Plan - Nonqualified Supplemental Deferred Compensation Plan - Adoption Agreement, originally dated as of December 16, 2008 (and as amended through February 24, 2012 (including an amendment to Item 7 thereof, effective January 1, 2012, with respect to the deferral of restricted stock units)) (Exhibit 10.2(b) to EOG's Annual Report on Form 10-K for the year ended December 31, 2011) (originally filed as Exhibit 10.2(b) to EOG's Annual Report on Form 10-K for the year ended December 31, 2008) (SEC File No. 001-09743).
10.3(c)+ | - | First Amendment to the EOG Resources, Inc. 409A Deferred Compensation Plan, effective as of January 1, 2013 (Exhibit 10.8 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2013) (SEC File No. 001-09743).
10.3(d)+ | - | Amendment 2 to the EOG Resources, Inc. 409A Deferred Compensation Plan, effective as of January 1, 2018 (Exhibit 10.3(d) to EOG's Annual Report on Form 10-K for the year ended December 31, 2018) (SEC File No. 001-09743).
10.3(e)+ | - | Amended and Restated 1996 Deferral Plan (Exhibit 4.4 to EOG's Registration Statement on Form S-8, SEC File No. 333-84014, filed March 8, 2002).
10.3(f)+ | - | First Amendment to Amended and Restated 1996 Deferral Plan, effective as of September 10, 2002 (Exhibit 10.9(e) to EOG's Annual Report on Form 10-K for the year ended December 31, 2002) (SEC File No. 001-09743).
10.4(a)+ | - | Change of Control Agreement between EOG and William R. Thomas, effective as of January 12, 2011 (Exhibit 10.2 to EOG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2011) (SEC File No. 001-09743).
10.4(b)+ | - | First Amendment to Change of Control Agreement between EOG and William R. Thomas, effective as of September 13, 2011 (Exhibit 10.2 to EOG's Current Report on Form 8-K, filed September 13, 2011) (SEC File No. 001-09743).
10.4(c)+ | - | Second Amendment to Change of Control Agreement between EOG and William R. Thomas, effective as of September 4, 2013 (Exhibit 10.2 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2013) (SEC File No. 001-09743).
10.5(a)+ | - | Amended and Restated Change of Control Agreement between EOG and Timothy K. Driggers, effective as of June 15, 2005 (Exhibit 99.11 to EOG's Current Report on Form 8-K, filed June 21, 2005) (SEC File No. 001-09743).
10.5(b)+ | - | First Amendment to Amended and Restated Change of Control Agreement between EOG and Timothy K. Driggers, effective as of April 30, 2009 (Exhibit 10.5 to EOG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2009) (SEC File No. 001-09743).
10.5(c)+ | - | Second Amendment to Amended and Restated Change of Control Agreement between EOG and Timothy K. Driggers, effective as of September 13, 2011 (Exhibit 10.4 to EOG's Current Report on Form 8-K, filed September 13, 2011) (SEC File No. 001-09743).
10.6(a)+ | - | Change of Control Agreement by and between EOG and Michael P. Donaldson, effective as of May 3, 2012 (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended June 30, 2012) (SEC File No. 001-09743).
10.6(b)+ | - | First Amendment to Change of Control Agreement between EOG and Michael P. Donaldson, effective as of September 4, 2013 (Exhibit 10.7 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2013) (SEC File No. 001-09743).
10.7(a)+ | - | Change of Control Agreement by and between EOG and Lloyd W. Helms, effective as of June 27, 2013 (Exhibit 10.9 to EOG's Quarterly Report on Form 10-Q for the quarter ended June 30, 2013) (SEC File No. 001-09743).
10.7(b)+ | - | First Amendment to Change of Control Agreement between EOG and Lloyd W. Helms, Jr., effective as of September 4, 2013 (Exhibit 10.4 to EOG's Quarterly Report on Form 10-Q for the quarter ended September 30, 2013) (SEC File No. 001-09743).
10.8+ | - | Change of Control Agreement by and between EOG and Ezra Y. Yacob, effective as of January 26, 2018 (Exhibit 10.10 to EOG's Annual Report on Form 10-K for the year ended December 31, 2017) (SEC File No. 001-09743).
10.9+ | - | Change of Control Agreement by and between EOG and Kenneth W. Boedeker, effective as of December 19, 2018 (Exhibit 10.11 to EOG's Annual Report on Form 10-K for the year ended December 31, 2018) (SEC File No. 001-09743).

E-5

Exhibit Number |  | Description
10.10(a)+ | - | EOG Resources, Inc. Change of Control Severance Plan, as amended and restated effective as of June 15, 2005 (Exhibit 99.12 to EOG's Current Report on Form 8-K, filed June 21, 2005) (SEC File No. 001-09743).
10.10(b)+ | - | First Amendment to the EOG Resources, Inc. Change of Control Severance Plan, effective as of April 30, 2009 (Exhibit 10.6 to EOG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2009) (SEC File No. 001-09743).
10.11(a)+ | - | EOG Resources, Inc. Annual Bonus Plan (effective January 1, 2019) (Exhibit 10.1 to EOG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2019) (SEC File No. 001-09743).
10.11(b)+ | - | EOG Resources, Inc. Amended and Restated Executive Officer Annual Bonus Plan (terminated effective January 1, 2019) (Exhibit 10.4 to EOG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2010) (SEC File No. 001-09743).
10.12(a)+ | - | EOG Resources, Inc. Employee Stock Purchase Plan (As Amended and Restated Effective January 1, 2018)(Exhibit 4.4(a) to EOG's Registration Statement on Form S-8, SEC File No. 333-224466, filed April 26, 2018).
10.12(b)+ | - | EOG Resources, Inc. Employee Stock Purchase Plan (as in effect prior to January 1, 2018) (Exhibit 4.4 to EOG's Registration Statement on Form S-8, SEC File No. 333-62256, filed June 4, 2001).
10.12(c)+ | - | Amendment to EOG Resources, Inc. Employee Stock Purchase Plan, dated effective as of January 1, 2010 (as in effect prior to January 1, 2018) (Exhibit 4.3(b) to EOG's Registration Statement on Form S-8, SEC File No. 333-166518, filed May 4, 2010).
10.13 | - | Revolving Credit Agreement, dated as of June 27, 2019, among EOG, JPMorgan Chase Bank, N.A., as Administrative Agent, the financial institutions as bank parties thereto, and the other parties thereto (Exhibit 10.1 to EOG's Current Report on Form 8-K, filed July 2, 2019) (SEC File No. 001-09743).
*21 | - | Subsidiaries of EOG, as of December 31, 2019.
*23.1 | - | Consent of DeGolyer and MacNaughton.
*23.2 | - | Consent of Deloitte & Touche LLP.
*24 | - | Powers of Attorney.
*31.1 | - | Section 302 Certification of Annual Report of Principal Executive Officer.
*31.2 | - | Section 302 Certification of Annual Report of Principal Financial Officer.
*32.1 | - | Section 906 Certification of Annual Report of Principal Executive Officer.
*32.2 | - | Section 906 Certification of Annual Report of Principal Financial Officer.
*95 | - | Mine Safety Disclosure Exhibit.
*99.1 | - | Opinion of DeGolyer and MacNaughton dated January 24, 2020.

E-6

Exhibit Number |  | Description
101.INS | - | Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
* **101.SCH | - | Inline XBRL Schema Document.
* **101.CAL | - | Inline XBRL Calculation Linkbase Document.
* **101.DEF | - | Inline XBRL Definition Linkbase Document.
* **101.LAB | - | Inline XBRL Label Linkbase Document.
* **101.PRE | - | Inline XBRL Presentation Linkbase Document.
104 | - | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

*Exhibits filed herewith
**Attached as Exhibit 101 to this report are the following documents formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statements of Income and Comprehensive Income for Each of the Three Years in the Period Ended December 31, 2019, (ii) the Consolidated Balance Sheets - December 31, 2019 and 2018, (iii) the Consolidated Statements of Stockholders' Equity for Each of the Three Years in the Period Ended December 31, 2019, (iv) the Consolidated Statements of Cash Flows for Each of the Three Years in the Period Ended December 31, 2019 and (v) the Notes to Consolidated Financial Statements.
+ Management contract, compensatory plan or arrangement
E-7

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

|  |  | EOG RESOURCES, INC.
|  |  | (Registrant)
Date: | February 27, 2020 | By: | /s/ TIMOTHY K. DRIGGERS Timothy K. Driggers Executive Vice President and Chief Financial Officer (Principal Financial Officer and Duly Authorized Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the following persons on behalf of the registrant and in the capacities with EOG Resources, Inc. indicated and on the 27 th day of February, 2020.

| Signature | Title
| /s/ WILLIAM R. THOMAS | Chairman of the Board and Chief Executive Officer and
| (William R. Thomas) | Director (Principal Executive Officer)
| /s/ TIMOTHY K. DRIGGERS | Executive Vice President and Chief Financial Officer
| (Timothy K. Driggers) | (Principal Financial Officer)
| /s/ ANN D. JANSSEN | Senior Vice President and Chief Accounting Officer
| (Ann D. Janssen) | (Principal Accounting Officer)
| * | Director
| (Janet F. Clark) |
| * | Director
| (Charles R. Crisp) |
| * | Director
| (Robert P. Daniels) |
| * | Director
| (James C. Day) |
| * | Director
| (C. Christopher Gaut) |
| * | Director
| (Julie J. Robertson) |
| * | Director
| (Donald F. Textor) |
*By: | /s/ MICHAEL P. DONALDSON |
| (Michael P. Donaldson) |
| (Attorney-in-fact for persons indicated) |