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Property, Plant and Equipment | 9 Months Ended
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Sep. 30, 2015
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | Property, Plant and Equipment Property, plant and equipment consists of the following (in thousands):
| September 30, 2015 |  | December 31, 2014
Oil and natural gas properties |  |  |
Proved(1) | $ | 12,302,551 |  |  | $ | 11,707,147 |
Unproved | 260,657 |  |  | 290,596 |
Total oil and natural gas properties | 12,563,208 |  |  | 11,997,743 |
Less accumulated depreciation, depletion and impairment | (10,235,369 | ) |  | (6,359,149 | )
Net oil and natural gas properties capitalized costs | 2,327,839 |  |  | 5,638,594 |
Land | 14,490 |  |  | 16,300 |
Non-oil and natural gas equipment(2) | 431,569 |  |  | 602,392 |
Buildings and structures(3) | 246,847 |  |  | 263,191 |
Total | 692,906 |  |  | 881,883 |
Less accumulated depreciation and amortization | (185,659 | ) |  | (305,420 | )
Other property, plant and equipment, net | 507,247 |  |  | 576,463 |
Total property, plant and equipment, net | $ | 2,835,086 |  |  | $ | 6,215,057 |
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(1) | Includes cumulative capitalized interest of approximately $47.6 million and $38.1 million at September 30, 2015 and December 31, 2014, respectively.
(2) | Includes cumulative capitalized interest of approximately $4.3 million at both September 30, 2015 and December 31, 2014.
(3) | Includes cumulative capitalized interest of approximately $20.3 million and $17.1 million at September 30, 2015 and December 31, 2014, respectively.
Accumulated depreciation, depletion and impairment on oil and natural gas properties includes cumulative full cost ceiling limitation impairment of $7.3 billion and $3.7 billion at September 30, 2015 and December 31, 2014, respectively. The Company reduced the net carrying value of its oil and natural gas properties by $1.0 billion and $3.6 billion during the three and nine-month periods ended September 30, 2015, respectively, and by $164.8 million during the nine-month period ended September 30, 2014, as a result of its quarterly full cost ceiling analyses. Drilling Assets. During the first quarter of 2015, the Company decided to discontinue all remaining drilling and oilfield services operations in the Permian region and during the second quarter of 2015 classified the related assets having a net book value of approximately $20.0 million, as held for sale, which were included in other current assets at June 30, 2015. The Company disposed of these assets during the third quarter of 2015 and recorded a loss on sale of assets of $3.5 million for the three-month period ended September 30, 2015. During the third quarter of 2015, the Company evaluated certain drilling assets for impairment based on the Company’s plan for their future use. As a result of these evaluations, the Company recorded an impairment of $19.8 million for the three-month period ended September 30, 2015. Buildings and Structures. In October 2015, the Company signed an agreement to sell one of its properties located in downtown Oklahoma City, Oklahoma. Because the net book value of the property exceeded the agreed upon sales price, the Company adjusted the carrying value of the property at September 30, 2015 to the agreed upon sales price, resulting in an impairment of $15.4 million for the three-month period ended September 30, 2015. Drilling Carry Commitments During the nine-month period ended September 30, 2014, the Company was party to an agreement with a co-working interest party, Repsol E&P USA, Inc.’s (“Repsol”), which contained a carry commitment to fund a portion of the Company’s future drilling, completing and equipping costs within areas of mutual interest. The Company recorded approximately $205.6 million for Repsol’s carry during the nine-month period ended September 30, 2014, which reduced the Company’s capital expenditures for the period. Repsol fully funded its carry commitment in the third quarter of 2014. Under the original agreement, the carry commitment could have been reduced if a certain number of wells were not drilled within the area of mutual interest during a twelve-month period and the Company failed to drill such wells following a proposal by Repsol to drill the wells. During 2013, the Company temporarily reduced its rate of drilling activity. As a result, the Company drilled less than the targeted number of wells for such twelve-month period, which resulted in Repsol having a right to propose additional wells. In the second quarter of 2014, the Company and Repsol amended the agreement to eliminate Repsol’s right to propose such additional wells in exchange for a commitment by the Company to drill 484 net wells in the area of mutual interest between January 1, 2014 and May 31, 2015, subject to delays due to factors beyond the Company’s control. Under the terms of the amended agreement, the Company agreed to carry Repsol’s future drilling and completion costs in the amount of approximately $1.0 million for each well of the 484 commitment that it did not drill, up to a maximum of $75.0 million in carry costs. As of May 31, 2015, the Company had drilled 453 net wells under this arrangement. As a result, the Company will carry a portion of Repsol’s drilling and completion costs totaling up to approximately $31.0 million for wells drilled in the future in the area of mutual interest. The Company incurred approximately $3.6 million in costs toward this obligation during the three and nine-month periods ended September 30, 2015. Other than the above, the Company has no carry or drilling obligations to Repsol.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13-14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2921-110230 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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