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Supplemental Information on Oil and Gas Producing Activities (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2019
Statement [LineItems] |
Summary of Capitalized Costs, Along with the related Accumulated Depreciation and Allowances | The following tables set forth capitalized costs, along with the related accumulated depreciation and allowances as of December 31, 2019, 2018 and 2017:
|  | 2019 |  |  | 2018 |  |  | 2017 |
Consolidated capitalized costs |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |
Proved oil and gas properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mineral property, wells and related equipment ( 1 ) |  |  | 2,693,690 |  |  |  | 2,033 |  |  |  | 2,695,723 |  |  |  | 1,594,064 |  |  |  | — |  |  |  | 1,594,064 |  |  |  | 770,461 |  |  |  | — |  |  |  | 770,461 |
Support equipment and facilities |  |  | 80,012 |  |  |  | — |  |  |  | 80,012 |  |  |  | 47,224 |  |  |  | — |  |  |  | 47,224 |  |  |  | 22,171 |  |  |  | — |  |  |  | 22,171 |
Drilling and work in progress (2) |  |  | 142,122 |  |  |  | — |  |  |  | 142,122 |  |  |  | 80,737 |  |  |  | — |  |  |  | 80,737 |  |  |  | 40,567 |  |  |  | — |  |  |  | 40,567 |
Unproved oil and gas properties |  |  | 30,012 |  |  |  | — |  |  |  | 30,012 |  |  |  | 14,909 |  |  |  | 1,241 |  |  |  | 16,150 |  |  |  | 6,189 |  |  |  | 558 |  |  |  | 6,747 |
Total capitalized costs |  |  | 2,945,836 |  |  |  | 2,033 |  |  |  | 2,947,869 |  |  |  | 1,736,933 |  |  |  | 1,241 |  |  |  | 1,738,174 |  |  |  | 839,388 |  |  |  | 558 |  |  |  | 839,946 |
Accumulated depreciation and valuation allowances ( 3 ) |  |  | (2,239,487 | ) |  |  | (1,973 | ) |  |  | (2,241,460 | ) |  |  | (1,283,840 | ) |  |  | (489 | ) |  |  | (1,284,328 | ) |  |  | (600,086 | ) |  |  | — |  |  |  | (600,086 | )
Net capitalized costs |  |  | 706,349 |  |  |  | 60 |  |  |  | 706,409 |  |  |  | 453,093 |  |  |  | 752 |  |  |  | 453,846 |  |  |  | 239,302 |  |  |  | 558 |  |  |  | 239,860 |
(1) | Includes 24,468 corresponding to all Upstream contracts, excepted for Drilling Contracts (2) comprised in right-of-use assets (IFRS 16).
(2) | Includes 11,032 corresponding to Drilling contracts comprised in right-of-use assets (IFRS 16).
(3) | Includes (8,841) corresponding to Accumulated Depreciation of all Upstream contracts of right-of-use assets (IFRS 16).
Costs Incurred for Oil and Gas Producing Activities | The following tables set forth the costs incurred for oil and gas producing activities during the years ended December 31, 2019, 2018 and 2017:
|  | 2019 |  |  | 2018 |  |  | 2017 |
Consolidated costs incurred |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |
Acquisition of unproved properties |  |  | 4,171 |  |  |  | — |  |  |  | 4,171 |  |  |  | 276 |  |  |  | — |  |  |  | 276 |  |  |  | — |  |  |  | — |  |  |  | — |
Acquisition of proved properties |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 166 |  |  |  | — |  |  |  | 166 |  |  |  | 154 |  |  |  | — |  |  |  | 154 |
Exploration costs |  |  | 9,115 |  |  |  | 771 |  |  |  | 9,886 |  |  |  | 7,283 |  |  |  | 381 |  |  |  | 7,664 |  |  |  | 3,302 |  |  |  | 149 |  |  |  | 3,451 |
Development costs ( 1 ) |  |  | 132,289 |  |  |  | — |  |  |  | 132,289 |  |  |  | 53,553 |  |  |  | — |  |  |  | 53,553 |  |  |  | 39,039 |  |  |  | — |  |  |  | 39,039 |
Total costs incurred |  |  | 145,575 |  |  |  | 771 |  |  |  | 146,346 |  |  |  | 61,278 |  |  |  | 381 |  |  |  | 61,659 |  |  |  | 42,495 |  |  |  | 149 |  |  |  | 42,644 |
(1) | Includes 18,547 corresponding to additions of Upstream contracts comprised in right-of-use assets (IFRS 16).
Results of Operations from Oil and Gas Producing Activities | Differences between these tables and the amounts shown in Note 5 “Segment information”, for the exploration and production business unit, relate to additional operations that do not arise from those properties held by the Group.
|  | 2019 |  |  | 2018 |  |  | 2017 |
Consolidated results of operations |  | Argentina |  |  | Other Foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |
Net sales to unaffiliated parties |  |  | 1,949 |  |  |  | 120 |  |  |  | 2,069 |  |  |  | 3,085 |  |  |  | — |  |  |  | 3,085 |  |  |  | 521 |  |  |  | — |  |  |  | 521 |
Net intersegment sales |  |  | 286,585 |  |  |  | — |  |  |  | 286,585 |  |  |  | 207,480 |  |  |  | — |  |  |  | 207,480 |  |  |  | 115,955 |  |  |  | — |  |  |  | 115,955 |
Total net revenues |  |  | 288,534 |  |  |  | 120 |  |  |  | 288,654 |  |  |  | 210,565 |  |  |  | — |  |  |  | 210,565 |  |  |  | 116,476 |  |  |  | — |  |  |  | 116,476 |
Production costs |  |  | (164,562 | ) ( 1 ) |  |  | (242 | ) |  |  | (164,804 | ) |  |  | (114,381 | ) |  |  | — |  |  |  | (114,381 | ) |  |  | (69,944 | ) |  |  | — |  |  |  | (69,944 | )
Exploration expenses |  |  | (6,045 | ) |  |  | (734 | ) |  |  | (6,779 | ) |  |  | (5,185 | ) |  |  | (224 | ) |  |  | (5,409 | ) |  |  | (2,279 | ) |  |  | (168 | ) |  |  | (2,447 | )
Depreciation of property, plant and equipment; intangible and right-of-use assets |  |  | (124,977 | ) ( 2 ) |  |  | (980 | ) |  |  | (125,957 | ) |  |  | (72,044 | ) |  |  | — |  |  |  | (72,044 | ) |  |  | (45,277 | ) |  |  | — |  |  |  | (45,277 | )
Impairment of Property, plant and equipment |  |  | (40,561 | ) |  |  | — |  |  |  | (40,561 | ) |  |  | 3,265 |  |  |  | (365 | ) |  |  | 2,900 |  |  |  | 5,032 |  |  |  | — |  |  |  | 5,032 |
Other |  |  | (6,569 | ) |  |  | (56 | ) |  |  | (6,625 | ) |  |  | (2,839 | ) |  |  | (168 | ) |  |  | (3,007 | ) |  |  | (2,706 | ) |  |  | — |  |  |  | (2,706 | )
Pre-tax income (loss) from producing activities |  |  | (54,180 | ) |  |  | (1,892 | ) |  |  | (56,072 | ) |  |  | 19,381 |  |  |  | (757 | ) |  |  | 18,624 |  |  |  | 1,302 |  |  |  | (168 | ) |  |  | 1,134 |
Income tax expense / benefit |  |  | 16,254 |  |  |  | 417 |  |  |  | 16,671 |  |  |  | (5,814 | ) |  |  | 227 |  |  |  | (5,587 | ) |  |  | (456 | ) |  |  | 59 |  |  |  | (397 | )
Results of oil and gas producing activities |  |  | (37,926 | ) |  |  | (1,475 | ) |  |  | (39,401 | ) |  |  | 13,567 |  |  |  | (530 | ) |  |  | 13,037 |  |  |  | 846 |  |  |  | (109 | ) |  |  | 737 |
(1) | Includes Ps 6,680 million corresponding to short term leases and variable lease payments related to the use of assets. For more information See Note 2.b.12) to the Audited Consolidated Financial Statements.
(2) | Includes Ps (6,060) million corresponding to depreciation of right-of-use assets (IFRS 16).
Summary of Standardized Measure of Discounted Future Net Cash Flows | The standardized measure does not purport to be an estimate of the fair market value of the Group’s proved reserves. An estimate of fair value would also take into account, among other things, the expected recovery of reserves in excess of proved reserves, anticipated changes in future prices and costs and a discount factor representative of the time value of money and the risks inherent in producing oil and gas.
|  | 2019 |  |  | 2018 |  |  | 2017 |
Consolidated standardized measure of discounted future net cash flows |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |
Future cash inflows (1) |  |  | 2,545,028 |  |  |  | — |  |  |  | 2,545,028 |  |  |  | 1,786,896 |  |  |  | — |  |  |  | 1,786,896 |  |  |  | 564,396 |  |  |  | — |  |  |  | 564,396 |
Future production costs |  |  | (1,333,468 | ) |  |  | — |  |  |  | (1,333,468 | ) |  |  | (913,980 | ) |  |  | — |  |  |  | (913,980 | ) |  |  | (349,819 | ) |  |  | — |  |  |  | (349,819 | )
Future development costs |  |  | (482,015 | ) |  |  | — |  |  |  | (482,015 | ) |  |  | (304,448 | ) |  |  | — |  |  |  | (304,448 | ) |  |  | (128,885 | ) |  |  | — |  |  |  | (128,885 | )
Future income tax expenses |  |  | (120,966 | ) |  |  | — |  |  |  | (120,966 | ) |  |  | (121,388 | ) |  |  | — |  |  |  | (121,388 | ) |  |  | (2,324 | ) |  |  | — |  |  |  | (2,324 | )
10% annual discount for estimated timing of cash flows |  |  | (227,670 | ) |  |  | — |  |  |  | (227,670 | ) |  |  | (138,847 | ) |  |  | — |  |  |  | (138,847 | ) |  |  | (16,935 | ) |  |  | — |  |  |  | (16,935 | )
Total standardized measure of discounted future net cash flows |  |  | 380,909 |  |  |  | — |  |  |  | 380,909 |  |  |  | 308,233 |  |  |  | — |  |  |  | 308,233 |  |  |  | 66,433 |  |  |  | — |  |  |  | 66,433 |
(1) | For the years ended December 31, 2019, future cash inflows are stated net of the effect of withholdings on exports until 2021 in accordance with Law No. 27,541. For the years ended December 31, 2018, future cash inflows are stated net of the effect of withholdings on exports until 2020 in accordance with Decree No. 793/2018. For the years ended December 31, 2017, future cash inflows are stated net of the effect of withholdings on exports until 2017 in accordance with Law No. 26,732.
Summary of Changes in the Standardized Measure of Discounted Future Net Cash Flows | The following table reflects the changes in standardized measure of discounted future net cash flows for the years ended December 31, 2019, 2018 and 2017:
|  | 2019 |  |  | 2018 |  |  | 2017 |
Beginning of year |  |  | 308,233 |  |  |  | 66,433 |  |  |  | 106,411 |
Sales and transfers, net of production costs |  |  | (197,278 | ) |  |  | (62,115 | ) |  |  | (53,759 | )
Net change in sales and transfer prices, net of future production costs |  |  | (239,226 | ) |  |  | 68,651 |  |  |  | (74,046 | )
Changes in reserves and production rates (timing) |  |  | (26,496 | ) |  |  | 111,137 |  |  |  | 15,495 |
Net changes for extensions, discoveries and improved recovery |  |  | 228,354 |  |  |  | 160,784 |  |  |  | 28,489 |
Net change due to purchases and sales of minerals in place |  |  | (1,152 | ) |  |  | (730 | ) |  |  | — |
Changes in estimated future development and abandonment costs |  |  | (82,799 | ) |  |  | (71,368 | ) |  |  | (32,052 | )
Development costs incurred during the year that reduced future development costs |  |  | 102,784 |  |  |  | 39,780 |  |  |  | 22,475 |
Accretion of discount |  |  | 43,534 |  |  |  | 11,490 |  |  |  | 9,724 |
Net change in income taxes |  |  | 66,705 |  |  |  | (80,832 | ) |  |  | 25,920 |
Others ( 1 ) |  |  | 178,250 |  |  |  | 65,003 |  |  |  | 17,776 |
End of year |  |  | 380,909 |  |  |  | 308,233 |  |  |  | 66,433 |
(1) | Corresponds mainly to exchange differences arising from the translation of our cashflows in the functional currency to the presentation currency.
Oil and Condensate [Member] |
Statement [LineItems] |
Summary of Changes in YPF's Net Proved Reserves | The table below sets forth information regarding changes in YPF’s net proved reserves during 2019, 2018 and 2017, by hydrocarbon product.
|  | 2019 |  |  | 2018 |  |  | 2017 |
Oil and Condensate |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |
|  | (Millions of barrels) |
Consolidated entities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At January 1, |  |  | 582 |  |  |  | 582 |  |  |  | — |  |  |  | 422 |  |  |  | 422 |  |  |  | — |  |  |  | 525 |  |  |  | 525 |  |  |  | — |
Developed |  |  | 339 |  |  |  | 339 |  |  |  | — |  |  |  | 286 |  |  |  | 286 |  |  |  | — |  |  |  | 380 |  |  |  | 380 |  |  |  | — |
Undeveloped |  |  | 243 |  |  |  | 243 |  |  |  | — |  |  |  | 136 |  |  |  | 136 |  |  |  | — |  |  |  | 145 |  |  |  | 145 |  |  |  | — |
Revisions of previous estimates (1) |  |  | 21 |  |  |  | 21 |  |  |  | * |  |  |  | 126 |  |  |  | 126 |  |  |  | — |  |  |  | (72 | ) |  |  | (72 | ) |  |  | — |
Extensions and discoveries |  |  | 86 |  |  |  | 86 |  |  |  | — |  |  |  | 103 |  |  |  | 103 |  |  |  | — |  |  |  | 19 |  |  |  | 19 |  |  |  | — |
Improved recovery |  |  | 8 |  |  |  | 8 |  |  |  | — |  |  |  | 15 |  |  |  | 15 |  |  |  | — |  |  |  | 33 |  |  |  | 33 |  |  |  | — |
Purchase of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Sale of minerals in place |  |  | (1 | ) |  |  | (1 | ) |  |  | — |  |  |  | (1 | ) |  |  | (1 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Production for the year (2) |  |  | (83 | ) |  |  | (83 | ) |  |  | * |  |  |  | (83 | ) |  |  | (83 | ) |  |  | — |  |  |  | (83 | ) |  |  | (83 | ) |  |  | — |
At December 31, (3) |  |  | 613 |  |  |  | 613 |  |  |  | — |  |  |  | 582 |  |  |  | 582 |  |  |  | — |  |  |  | 422 |  |  |  | 422 |  |  |  | — |
Developed |  |  | 301 |  |  |  | 301 |  |  |  | — |  |  |  | 339 |  |  |  | 339 |  |  |  | — |  |  |  | 286 |  |  |  | 286 |  |  |  | — |
Undeveloped |  |  | 312 |  |  |  | 312 |  |  |  | — |  |  |  | 243 |  |  |  | 243 |  |  |  | — |  |  |  | 136 |  |  |  | 136 |  |  |  | — |
Equity-accounted entities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At January 1, |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Developed |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Undeveloped |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Revisions of previous estimates (1) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Extensions and discoveries |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Improved recovery |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Purchase of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Sale of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Production for the year (2) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
At December 31, (3) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Developed |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Undeveloped |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Consolidated and Equity-accounted entities |  |  |  |
At January 1, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed |  |  | 339 |  |  |  | 339 |  |  |  | — |  |  |  | 286 |  |  |  | 286 |  |  |  | — |  |  |  | 380 |  |  |  | 380 |  |  |  | — |
Undeveloped |  |  | 243 |  |  |  | 243 |  |  |  | — |  |  |  | 136 |  |  |  | 136 |  |  |  | — |  |  |  | 145 |  |  |  | 145 |  |  |  | — |
Total |  |  | 582 |  |  |  | 582 |  |  |  | — |  |  |  | 422 |  |  |  | 422 |  |  |  | — |  |  |  | 525 |  |  |  | 525 |  |  |  | — |
At December 31, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed |  |  | 301 |  |  |  | 301 |  |  |  | — |  |  |  | 339 |  |  |  | 339 |  |  |  | — |  |  |  | 286 |  |  |  | 286 |  |  |  | — |
Undeveloped |  |  | 312 |  |  |  | 312 |  |  |  | — |  |  |  | 243 |  |  |  | 243 |  |  |  | — |  |  |  | 136 |  |  |  | 136 |  |  |  | — |
Total |  |  | 613 |  |  |  | 613 |  |  |  | — |  |  |  | 582 |  |  |  | 582 |  |  |  | — |  |  |  | 422 |  |  |  | 422 |  |  |  | — |
* | Not material (less than 1).
(1) | Revisions in estimates of reserves are performed at least once a year. Revisions of oil and gas reserves is considered prospectively in the calculation of depreciation.
(2) | Crude oil production for the years 2019, 2018 and 2017 includes an estimated approximately 12, 12 and 12 mmbbl, respectively, in respect of royalty payments which are a financial obligation or are substantially equivalent to a production or similar tax.
(3) | Proved crude oil reserves of consolidated entities as of December 31, 2019, 2018 and 2017 include an estimated approximately 88, 83 and 61 mmbbl, respectively, in respect of royalty payments which, as described above, are a financial obligation , or are substantially equivalent to a production or similar tax.
Natural gas [member] |
Statement [LineItems] |
Summary of Changes in YPF's Net Proved Reserves |
|  | 2019 |  |  | 2018 |  |  | 2017 |
Natural gas |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |
|  | (Billions of standard cubic feet) |
Consolidated entities |  |  |  |
At January 1, |  |  | 2,481 |  |  |  | 2,481 |  |  |  | — |  |  |  | 2,520 |  |  |  | 2,520 |  |  |  | — |  |  |  | 2,923 |  |  |  | 2,923 |  |  |  | — |
Developed |  |  | 1,915 |  |  |  | 1,915 |  |  |  | — |  |  |  | 1,850 |  |  |  | 1,850 |  |  |  | — |  |  |  | 2,143 |  |  |  | 2,143 |  |  |  | — |
Undeveloped |  |  | 566 |  |  |  | 566 |  |  |  | — |  |  |  | 670 |  |  |  | 670 |  |  |  | — |  |  |  | 780 |  |  |  | 780 |  |  |  | — |
Revisions of previous estimates (1) |  |  | (104 | ) |  |  | (104 | ) |  |  | — |  |  |  | 178 |  |  |  | 178 |  |  |  | — |  |  |  | (161 | ) |  |  | (161 | ) |  |  | — |
Extensions and discoveries |  |  | 384 |  |  |  | 384 |  |  |  | — |  |  |  | 329 |  |  |  | 329 |  |  |  | — |  |  |  | 313 |  |  |  | 313 |  |  |  | — |
Improved recovery |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Purchase of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 12 |  |  |  | 12 |  |  |  | — |
Sale of minerals in place |  |  | (8 | ) |  |  | (8 | ) |  |  | — |  |  |  | (4 | ) |  |  | (4 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Production for the year (2) |  |  | (512 | ) |  |  | (512 | ) |  |  | — |  |  |  | (542 | ) |  |  | (542 | ) |  |  | — |  |  |  | (567 | ) |  |  | (567 | ) |  |  | — |
At December 31, (3) (4) |  |  | 2,241 |  |  |  | 2,241 |  |  |  | — |  |  |  | 2,481 |  |  |  | 2,481 |  |  |  | — |  |  |  | 2,520 |  |  |  | 2,520 |  |  |  | — |
Developed |  |  | 1,743 |  |  |  | 1,743 |  |  |  | — |  |  |  | 1,915 |  |  |  | 1,915 |  |  |  | — |  |  |  | 1,850 |  |  |  | 1,850 |  |  |  | — |
Undeveloped |  |  | 498 |  |  |  | 498 |  |  |  | — |  |  |  | 566 |  |  |  | 566 |  |  |  | — |  |  |  | 670 |  |  |  | 670 |  |  |  | — |
Equity-accounted entities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At January 1, |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Developed |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Undeveloped |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Revisions of previous estimates (1) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Extensions and discoveries |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Improved recovery |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Purchase of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Sale of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Production for the year (2) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
At December 31, (3) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Developed |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Undeveloped |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Consolidated and Equity-accounted entities |  |  |  |
At January 1, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed |  |  | 1,915 |  |  |  | 1,915 |  |  |  | — |  |  |  | 1,850 |  |  |  | 1,850 |  |  |  | — |  |  |  | 2,143 |  |  |  | 2,143 |  |  |  | — |
Undeveloped |  |  | 566 |  |  |  | 566 |  |  |  | — |  |  |  | 670 |  |  |  | 670 |  |  |  | — |  |  |  | 780 |  |  |  | 780 |  |  |  | — |
Total |  |  | 2,481 |  |  |  | 2,481 |  |  |  | — |  |  |  | 2,520 |  |  |  | 2,520 |  |  |  | — |  |  |  | 2,923 |  |  |  | 2,923 |  |  |  | — |
At December 31, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed |  |  | 1,743 |  |  |  | 1,743 |  |  |  | — |  |  |  | 1,915 |  |  |  | 1,915 |  |  |  | — |  |  |  | 1,850 |  |  |  | 1,850 |  |  |  | — |
Undeveloped |  |  | 498 |  |  |  | 498 |  |  |  | — |  |  |  | 566 |  |  |  | 566 |  |  |  | — |  |  |  | 670 |  |  |  | 670 |  |  |  | — |
Total |  |  | 2,241 |  |  |  | 2,241 |  |  |  | — |  |  |  | 2,481 |  |  |  | 2,481 |  |  |  | — |  |  |  | 2,520 |  |  |  | 2,520 |  |  |  | — |
* | Not material (less than 1 ).
(1) | Revisions in estimates of reserves are performed at least once a year. Revision of natural gas reserves is considered prospectively in the calculation of depreciation.
(2) | Natural gas production for the years 2019, 2018 and 2017 includes an estimated approximately 60, 61 and 64 bcf, respectively, in respect of royalty payments which are a financial obligation or are substantially equivalent to a production or similar tax.
(3) | Proved natural gas reserves of consolidated entities as of December 31, 2019, 2018 and 2017 include an estimated approximately 259, 288 and 289 bcf, respectively, in respect of royalty payments which, as described above, are a financial obligation, or are substantially equivalent to a production or similar tax.
(4) | Proved natural gas reserves of consolidated entities and equity-accounted entities as of December 31, 2019, 2018 and 2017 include an estimated approximately 321, 349 and 364 bcf, respectively, which is consumed as fuel at the field.
Oil equivalent [Member] |
Statement [LineItems] |
Summary of Changes in YPF's Net Proved Reserves |
|  | 2019 |  |  | 2018 |  |  | 2017 |
Oil equivalent (1) |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |
|  | (Millions of barrels of oil equivalent) |
Consolidated entities |  |  |  |
At January 1, |  |  | 1,080 |  |  |  | 1,080 |  |  |  | — |  |  |  | 929 |  |  |  | 929 |  |  |  | — |  |  |  | 1,113 |  |  |  | 1,113 |  |  |  | — |
Developed |  |  | 722 |  |  |  | 722 |  |  |  | — |  |  |  | 663 |  |  |  | 663 |  |  |  | — |  |  |  | 815 |  |  |  | 815 |  |  |  | — |
Undeveloped |  |  | 358 |  |  |  | 358 |  |  |  | — |  |  |  | 266 |  |  |  | 266 |  |  |  | — |  |  |  | 298 |  |  |  | 298 |  |  |  | — |
Revisions of previous estimates (2) |  |  | 7 |  |  |  | 7 |  |  |  | * |  |  |  | 157 |  |  |  | 157 |  |  |  | — |  |  |  | (96 | ) |  |  | (96 | ) |  |  | — |
Extensions and discoveries |  |  | 169 |  |  |  | 169 |  |  |  | — |  |  |  | 174 |  |  |  | 174 |  |  |  | — |  |  |  | 80 |  |  |  | 80 |  |  |  | — |
Improved recovery |  |  | 8 |  |  |  | 8 |  |  |  | — |  |  |  | 15 |  |  |  | 15 |  |  |  | — |  |  |  | 32 |  |  |  | 32 |  |  |  | — |
Purchase of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2 |  |  |  | 2 |  |  |  | — |
Sale of minerals in place |  |  | (3 | ) |  |  | (3 | ) |  |  | — |  |  |  | (2 | ) |  |  | (2 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Production for the year (3) |  |  | (188 | ) |  |  | (188 | ) |  |  | * |  |  |  | (193 | ) |  |  | (193 | ) |  |  | — |  |  |  | (202 | ) |  |  | (202 | ) |  |  | — |
At December 31, (4) |  |  | 1,073 |  |  |  | 1,073 |  |  |  | — |  |  |  | 1,080 |  |  |  | 1,080 |  |  |  | — |  |  |  | 929 |  |  |  | 929 |  |  |  | — |
Developed |  |  | 650 |  |  |  | 650 |  |  |  | — |  |  |  | 722 |  |  |  | 722 |  |  |  | — |  |  |  | 663 |  |  |  | 663 |  |  |  | — |
Undeveloped |  |  | 423 |  |  |  | 423 |  |  |  | — |  |  |  | 358 |  |  |  | 358 |  |  |  | — |  |  |  | 266 |  |  |  | 266 |  |  |  | — |
Equity-accounted entities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At January 1, |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Developed |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Undeveloped |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Revisions of previous estimates (2) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Extensions and discoveries |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Improved recovery |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Purchase of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Sale of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Production for the year (3) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
At December 31, (4) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Developed |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Undeveloped |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Consolidated and Equity-accounted entities |  |  |  |
At January 1, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed |  |  | 722 |  |  |  | 722 |  |  |  | — |  |  |  | 663 |  |  |  | 663 |  |  |  | — |  |  |  | 815 |  |  |  | 815 |  |  |  | — |
Undeveloped |  |  | 358 |  |  |  | 358 |  |  |  | — |  |  |  | 266 |  |  |  | 266 |  |  |  | — |  |  |  | 298 |  |  |  | 298 |  |  |  | — |
Total |  |  | 1,080 |  |  |  | 1,080 |  |  |  | — |  |  |  | 929 |  |  |  | 929 |  |  |  | — |  |  |  | 1,113 |  |  |  | 1,113 |  |  |  | — |
At December 31, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed |  |  | 650 |  |  |  | 650 |  |  |  | — |  |  |  | 722 |  |  |  | 722 |  |  |  | — |  |  |  | 663 |  |  |  | 663 |  |  |  | — |
Undeveloped |  |  | 423 |  |  |  | 423 |  |  |  | — |  |  |  | 358 |  |  |  | 358 |  |  |  | — |  |  |  | 266 |  |  |  | 266 |  |  |  | — |
Total |  |  | 1,073 |  |  |  | 1,073 |  |  |  | — |  |  |  | 1,080 |  |  |  | 1,080 |  |  |  | — |  |  |  | 929 |  |  |  | 929 |  |  |  | — |
* | Not material (less than 1) .
(1) | Volumes of natural gas have been converted to barrels of oil equivalent at 5,615 cubic feet per barrel.
(2) | Revisions in estimates of reserves are performed at least once a year. Revision of crude oil, natural gas liquids and natural gas reserves are considered prospectively in the calculation of depreciation.
(3) | Barrel of oil equivalent production of consolidated entities for the years 2019, 2018 and 2017 includes an estimated approximately 24, 24 and 25 mmboe, respectively, in respect of royalty payments which, as described above, are a financial obligation, or are substantially equivalent to a production or similar tax.
(4) | Proved oil equivalent reserves of consolidated entities as of December 31, 2019, 2018 and 2017 include an estimated approximately 140, 143 and 119 mmboe, respectively, in respect of royalty payments which, as described above, are a financial obligation, or are substantially equivalent to a production or similar tax.
Natural Gas Liquids [Member] |
Statement [LineItems] |
Summary of Changes in YPF's Net Proved Reserves |
|  | 2019 |  |  | 2018 |  |  | 2017 |
Natural Gas Liquids |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |  |  | Worldwide |  |  | Argentina |  |  | Other foreign |
|  | (Millions of barrels) |
Consolidated entities |  |  |  |
At January 1, |  |  | 56 |  |  |  | 56 |  |  |  | — |  |  |  | 58 |  |  |  | 58 |  |  |  | — |  |  |  | 68 |  |  |  | 68 |  |  |  | — |
Developed |  |  | 41 |  |  |  | 41 |  |  |  | — |  |  |  | 47 |  |  |  | 47 |  |  |  | — |  |  |  | 53 |  |  |  | 53 |  |  |  | — |
Undeveloped |  |  | 15 |  |  |  | 15 |  |  |  | — |  |  |  | 11 |  |  |  | 11 |  |  |  | — |  |  |  | 15 |  |  |  | 15 |  |  |  | — |
Revisions of previous estimates (1) |  |  | 4 |  |  |  | 4 |  |  |  | — |  |  |  | (1 | ) |  |  | (1 | ) |  |  | — |  |  |  | 4 |  |  |  | 4 |  |  |  | — |
Extensions and discoveries |  |  | 14 |  |  |  | 14 |  |  |  | — |  |  |  | 13 |  |  |  | 13 |  |  |  | — |  |  |  | 5 |  |  |  | 5 |  |  |  | — |
Improved recovery |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Purchase of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Sale of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Production for the year (2) |  |  | (14 | ) |  |  | (14 | ) |  |  | — |  |  |  | (14 | ) |  |  | (14 | ) |  |  | — |  |  |  | (19 | ) |  |  | (19 | ) |  |  | — |
At December 31, (3) |  |  | 60 |  |  |  | 60 |  |  |  | — |  |  |  | 56 |  |  |  | 56 |  |  |  | — |  |  |  | 58 |  |  |  | 58 |  |  |  | — |
Developed |  |  | 38 |  |  |  | 38 |  |  |  | — |  |  |  | 41 |  |  |  | 41 |  |  |  | — |  |  |  | 47 |  |  |  | 47 |  |  |  | — |
Undeveloped |  |  | 22 |  |  |  | 22 |  |  |  | — |  |  |  | 15 |  |  |  | 15 |  |  |  | — |  |  |  | 11 |  |  |  | 11 |  |  |  | — |
Equity-accounted entities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
At January 1, |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Developed |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Undeveloped |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Revisions of previous estimates (1) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Extensions and discoveries |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Improved recovery |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Purchase of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Sale of minerals in place |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Production for the year (2) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
At December 31, (3) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Developed |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Undeveloped |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Consolidated and Equity-accounted entities |  |  |  |
At January 1, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed |  |  | 41 |  |  |  | 41 |  |  |  | — |  |  |  | 47 |  |  |  | 47 |  |  |  | — |  |  |  | 53 |  |  |  | 53 |  |  |  | — |
Undeveloped |  |  | 15 |  |  |  | 15 |  |  |  | — |  |  |  | 11 |  |  |  | 11 |  |  |  | — |  |  |  | 15 |  |  |  | 15 |  |  |  | — |
Total |  |  | 56 |  |  |  | 56 |  |  |  | — |  |  |  | 58 |  |  |  | 58 |  |  |  | — |  |  |  | 68 |  |  |  | 68 |  |  |  | — |
At December 31, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Developed |  |  | 38 |  |  |  | 38 |  |  |  | — |  |  |  | 41 |  |  |  | 41 |  |  |  | — |  |  |  | 47 |  |  |  | 47 |  |  |  | — |
Undeveloped |  |  | 22 |  |  |  | 22 |  |  |  | — |  |  |  | 15 |  |  |  | 15 |  |  |  | — |  |  |  | 11 |  |  |  | 11 |  |  |  | — |
Total |  |  | 60 |  |  |  | 60 |  |  |  | — |  |  |  | 56 |  |  |  | 56 |  |  |  | — |  |  |  | 58 |  |  |  | 58 |  |  |  | — |
* | Not material (less than 1).
(1) | Revisions in estimates of reserves are performed at least once a year. Revision of oil and gas reserves is considered prospectively in the calculation of depreciation.
(2) | Natural gas liquids production for the years 2019, 2018 and 2017 includes an estimated approximately 1, 2 and 2 mmbbl, respectively, in respect of royalty payments which are a financial obligation or are substantially equivalent to a production or similar tax.
(3) | Proved natural gas liquids reserves of consolidated entities as of December 31, 2019, 2018 and 2017 include an estimated approximately 6, 8 and 6 mmbbl, respectively, in respect of royalty payments which, as described above, are a financial obligation, or are substantially equivalent to a production or similar tax.

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