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Supplemental Information On Oil And Gas Exploration And Production Activities (Tables) | 12 Months Ended
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Dec. 31, 2013
Extractive Industries [Abstract] |
Capitalized Costs Relating to Oil and Gas Producing Activities | talized Costs Related to Oil and Gas Producing Activities
| 2013 |  | 2012
| (In thousands)
Proven properties | $ | 1,526,588 |  |  | $ | 984,795 |
Unproven properties | 950,590 |  |  | 626,295 |
| 2,477,178 |  |  | 1,611,090 |
Accumulated depreciation, depletion, amortization and impairment reserve | (779,561 | ) |  | (661,442 | )
Net capitalized costs | $ | 1,697,617 |  |  | $ | 949,648 |
Equity investment in Diamondback Energy, Inc. |  |  |
Proven properties | $ | 92,074 |  |  | $ | 123,370 |
Unproven properties | 26,608 |  |  | 25,947 |
| 118,682 |  |  | 149,317 |
Accumulated depreciation, depletion, amortization and impairment reserve | $ | (15,180 | ) |  | $ | (31,052 | )
Net capitalized costs | $ | 103,502 |  |  | $ | 118,265 |
Cos
Cost Incurred in Oil and Gas Property Acquisition, Exploration, and Development Activities | s Incurred in Oil and Gas Property Acquisition and Development Activities
| 2013 |  | 2012 |  | 2011
| (In thousands)
Acquisition | $ | 338,153 |  |  | $ | 513,904 |  |  | $ | 119,522 |
Development of proved undeveloped properties | 408,121 |  |  | 121,787 |  |  | 123,489 |
Exploratory | 26,174 |  |  | 93,397 |  |  | 3,994 |
Recompletions | 44,633 |  |  | 24,643 |  |  | 17,259 |
Capitalized asset retirement obligation | 3,556 |  |  | 2,195 |  |  | 1,390 |
Total | $ | 820,637 |  |  | $ | 755,926 |  |  | $ | 265,654 |
Equity investment in Diamondback Energy, Inc. |  |  |  |  |
Acquisition | $ | 44,534 |  |  | $ | 49,895 |  |  | $ | — |
Development of proved undeveloped properties | 6,369 |  |  | 22,740 |  |  | — |
Exploratory | 17,491 |  |  | 3,755 |  |  | — |
Capitalized asset retirement obligation | 50 |  |  | 203 |  |  | — |
Total | $ | 68,444 |  |  | $ | 76,593 |  |  | $ | — |
Res
Results of Operations for Producing Activities | results of operations exclude general office overhead and interest expense attributable to oil and gas production.
| 2013 |  | 2012 |  | 2011
| (In thousands)
Revenues | $ | 262,225 |  |  | $ | 248,601 |  |  | $ | 228,953 |
Production costs | (64,666 | ) |  | (53,708 | ) |  | (47,230 | )
Depletion | (118,118 | ) |  | (90,230 | ) |  | (61,965 | )
| 79,441 |  |  | 104,663 |  |  | 119,758 |
Income tax expense (benefit) |  |  |  |  |
Current | — |  |  | 730 |  |  | 282 |
Deferred | 49,447 |  |  | 25,633 |  |  | (372 | )
| 49,447 |  |  | 26,363 |  |  | (90 | )
Results of operations from producing activities | $ | 29,994 |  |  | $ | 78,300 |  |  | $ | 119,848 |
Depletion per barrel of oil equivalent (BOE) | $ | 28.68 |  |  | $ | 35.07 |  |  | $ | 26.56 |
Results of Operations from equity method investment in Diamondback Energy, Inc. |  |  |  |  |
Revenues | $ | 14,976 |  |  | $ | 16,042 |  |  | $ | — |
Production costs | (2,518 | ) |  | (4,474 | ) |  | — |
Depletion | (4,754 | ) |  | (5,515 | ) |  | — |
| 7,704 |  |  | 6,053 |  |  | — |
Income tax expense (benefit) | 2,286 |  |  | 2,158 |  |  | — |
Results of operations from producing activities | $ | 5,418 |  |  | $ | 3,895 |  |  | $ | — |
Oil
Oil And Gas Reserves | n
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves (Unaudited) | dardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves
| Year ended December 31,
| 2013 |  | 2012 |  | 2011
| (In thousands)
Future cash flows | $ | 1,657,708 |  |  | $ | 954,833 |  |  | $ | 1,594,050 |
Future development and abandonment costs | (272,500 | ) |  | (159,113 | ) |  | (306,810 | )
Future production costs | (274,428 | ) |  | (147,024 | ) |  | (295,383 | )
Future production taxes | (78,647 | ) |  | (89,175 | ) |  | (124,739 | )
Future income taxes | (172,691 | ) |  | (114,867 | ) |  | (229,649 | )
Future net cash flows | 859,442 |  |  | 444,654 |  |  | 637,469 |
10% discount to reflect timing of cash flows | (280,976 | ) |  | (96,013 | ) |  | (260,788 | )
Standardized measure of discounted future net cash flows | $ | 578,466 |  |  | $ | 348,641 |  |  | $ | 376,681 |
Equity investment in Diamondback Energy, Inc. Standardized measure of discounted cash flows |  |  |  |  |
Future cash flows | $ | 331,505 |  |  | $ | 592,669 |  |  | $ | — |
Future development and abandonment costs | (37,229 | ) |  | (115,869 | ) |  | — |
Future production costs | (58,096 | ) |  | (165,553 | ) |  | — |
Future production taxes | (22,925 | ) |  | (30,122 | ) |  | — |
Future income taxes | (48,547 | ) |  | (71,669 | ) |  | — |
Future net cash flows | 164,708 |  |  | 209,456 |  |  | — |
10% discount to reflect timing of cash flows | (94,462 | ) |  | (130,871 | ) |  | — |
Standardized measure of discounted future net cash flows | $ | 70,246 |  |  | $ | 78,585 |  |  | $ | — |
In
Changes In Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves | ges in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves
| Year ended December 31,
| 2013 |  | 2012 |  | 2011
| (In thousands)
Sales and transfers of oil and gas produced, net of production costs | $ | (197,559 | ) |  | $ | (194,893 | ) |  | $ | (181,723 | )
Net changes in prices, production costs, and development costs | 65,573 |  |  | 108,941 |  |  | 136,071 |
Acquisition of oil and gas reserves in place | — |  |  | — |  |  | 72 |
Extensions and discoveries | 130,826 |  |  | 151,654 |  |  | 107,110 |
Previously estimated development costs incurred during the period | 43,478 |  |  | 10,211 |  |  | 41,193 |
Revisions of previous quantity estimates, less related production costs | (3,591 | ) |  | (10,504 | ) |  | (112,553 | )
Sales of reserves in place | — |  |  | (214,867 | ) |  | — |
Accretion of discount | 34,864 |  |  | 37,668 |  |  | 31,549 |
Net changes in income taxes | (30,239 | ) |  | 25,585 |  |  | (36,674 | )
Change in production rates and other | 186,473 |  |  | 58,165 |  |  | 76,149 |
Total change in standardized measure of discounted future net cash flows | $ | 229,825 |  |  | $ | (28,040 | ) |  | $ | 61,194 |
Equity investment in Diamondback Energy, Inc. Changes in standardized measure of discounted cash flows |  |  |  |  |
Change in ownership interest in Diamondback | $ | (52,145 | ) |  | $ | — |  |  | $ | — |
Sales and transfers of oil and gas produced, net of production costs | (12,524 | ) |  | (11,601 | ) |  | — |
Net changes in prices, production costs, and development costs | 3,312 |  |  | (14,596 | ) |  | — |
Acquisition of oil and gas reserves in place | 21,968 |  |  | 23,090 |  |  | — |
Extensions and discoveries | 39,776 |  |  | 16,969 |  |  | — |
Previously estimated development costs incurred during the period | 5,517 |  |  | 19,014 |  |  | — |
Revisions of previous quantity estimates, less related production costs | (9,143 | ) |  | (4,897 | ) |  | — |
Accretion of discount | 4,175 |  |  | 7,803 |  |  | — |
Net changes in income taxes | (12,137 | ) |  | (26,866 | ) |  | — |
Change in production rates and other | 2,862 |  |  | (8,358 | ) |  | — |
Total change in standardized measure of discounted future net cash flows | $ | (8,339 | ) |  | $ | 558 |  |  | $ | — |

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- Definition Tabular disclosure of the results of operations for oil and gas producing activities for the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 55 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=8451751&loc=d3e63071-109448 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62136-109447 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62246-109447 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 27 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62352-109447 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(a)(17)(ii),(c)(3)(ii)(A)(1)) -URI http://asc.fasb.org/extlink&oid=27015464&loc=d3e511914-122862 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62259-109447 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62299-109447 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62094-109447 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62395-109447 + Details
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- Definition Tabular disclosure of the net quantities of an enterprise's interests in proved developed and undeveloped reserves of (a) crude oil (including condensate and natural gas liquids), (b) natural gas (including coal bed methane), (c) synthetic oil, (d) synthetic gas, and (e) other nonrenewable natural resources that are intended to be upgraded during the period as of the beginning of the period, changes in quantities during the period, and as of the end of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61858-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61797-109447 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61869-109447 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61831-109447 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61872-109447 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61884-109447 + Details
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- Definition Tabular disclosure of the future net cash flows relating to proved oil and gas reserves and oil and gas subject to purchase under long-term agreements in which the enterprise participates in the operation of the properties on which the oil and gas is located or otherwise serves as the producer. This information is presented in aggregate and for each geographic area for which reserve quantities are disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 36 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62536-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62424-109447 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62479-109447 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62455-109447 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62500-109447 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62476-109447 + Details
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