|
FORM 10-K FOR FISCAL YEAR ENDED DECEMBER 31, 2007Supplementary Information
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Total
|
Domestic
|
Discontinued
Operations
|
||||||||||
|
December
31, 2007:
|
||||||||||||
|
Proved
oil and gas properties
|
$ | 2,951,712 | $ | 2,610,469 | $ | 341,243 | ||||||
|
Unproved
oil and gas properties
|
107,095 | 106,643 | 452 | |||||||||
| 3,058,807 | 2,717,112 | 341,695 | ||||||||||
|
Accumulated
depreciation, depletion, and amortization
|
(1,234,401 | ) | (981,449 | ) | (252,952 | ) | ||||||
|
Net
capitalized costs
|
$ | 1,824,406 | $ | 1,735,663 | $ | 88,743 | ||||||
|
December
31, 2006:
|
||||||||||||
|
Proved
oil and gas properties
|
$ | 2,264,831 | $ | 1,932,336 | $ | 332,495 | ||||||
|
Unproved
oil and gas properties
|
112,137 | 95,569 | 16,568 | |||||||||
| 2,376,968 | 2,027,905 | 349,063 | ||||||||||
|
Accumulated
depreciation, depletion, and amortization
|
(915,397 | ) | (808,708 | ) | (106,689 | ) | ||||||
|
Net
capitalized costs
|
$ | 1,461,571 | $ | 1,219,197 | $ | 242,374 | ||||||
Of the $106.6 million of domestic Unproved property costs (primarily seismic and lease acquisition costs) at December 31, 2007, excluded from the amortizable base, $42.6 million was incurred in 2007, $49.2 million was incurred in 2006, $4.5 million was incurred in 2005, and $10.3 million was incurred in prior years. When we are in an active drilling mode, we evaluate the majority of these unproved costs within a two to four year time frame.
Of the $0.5 million of New Zealand Unproved property costs at December 31, 2007, excluded from the amortizable base, $0.1 million was incurred in 2007, $0.1 million was incurred in 2006, $0.1 million was incurred in 2005, and $0.2 million was incurred in prior years.
Capitalized asset retirement obligations have been included in the Proved properties as of December 31, 2007, 2006, and 2005.
Costs Incurred. The following table sets forth costs incurred related to our oil and natural gas operations (in thousands):
Year Ended December 31, 2007 Total Domestic Discontinued Operations Acquisition of proved and unproved properties$ 253,573 $ 253,573 $ -- Lease acquisitions and prospect costs162,380 56,901 5,479 Exploration65,815 65,815 --- Development 2330,866 326,879 3,987 Total acquisition, exploration, and development 3, 4$ 712,634 $ 703,168 $ 9,466
Year Ended December 31, 2006 Total Domestic Discontinued Operations Acquisition of proved and unproved properties$ 212,499 $ 212,499 $ -- Lease acquisitions and prospect costs179,183 68,594 10,589 Exploration29,286 13,225 16,061 Development 2261,143 231,086 30,057 Total acquisition, exploration, and development 3, 4$ 582,111 $ 525,404 $ 56,707
Year Ended December 31, 2005 Total Domestic Discontinued Operations Acquisition of proved and unproved properties$ 31,429 $ 31,429 $ -- Lease acquisitions and prospect costs141,397 34,502 6,895 Exploration52,350 38,425 13,925 Development 2141,082 111,058 30,024 Total acquisition, exploration, and development 3, 4$ 266,258 $ 215,414 $ 50,844
(1)These are actual amounts as incurred by year, including both proved and unproved lease costs. The annual lease acquisition amounts added to proved oil and gas properties in 2007, 2006, and 2005 were $50.2 million, $70.5 million, and $30.4 million, respectively. Domestic costs for seismic data acquisition, included above, were $11.6 million, 23.1 million, and $4.2 million in 2007, 2006 and 2005, respectively. New Zealand costs for seismic data acquisition, included above were $0.5 million in 2007 and $3.8 million in 2006.
(2)Facility construction costs and capital costs have been included in development costs, and totaled $71.3 million, $16.5 million, and $26.9 million for the years ended December 31, 2007, 2006 and 2005.
(3)Includes capitalized general and administrative costs directly associated with the acquisition, exploration, and development efforts of approximately $30.6 million, $28.3 million, and $18.8 million in 2006, 2005, and 2004, respectively. In addition, the total includes $9.5 million, $9.2 million, and $7.2 million in 2007, 2006, and 2005, respectively, of capitalized interest on unproved properties.
(4)Asset retirement obligations incurred have been included in exploration, development and acquisition costs as applicable for the years ended December 31, 2007, 2006, and 2005.
Results of Operations (in thousands).
Year Ended December 31, 2007 Total Domestic Discontinued Operations Oil and gas sales$ 695,250 $ 652,856 $ 42,394 Lease operating cost(84,670 ) (70,893 ) (13,777 ) Severance and other taxes(76,647 ) (73,813 ) (2,834 ) Depreciation, depletion, and amortization(208,757 ) (186,086 ) (22,671 ) Accretion of asset retirement obligation(1,625 ) (1,437 ) (188 ) Write down of oil and gas properties(143,152 ) --- (143,152 ) 180,399 320,627 (140,228 ) Provision for income taxes(108,056 ) (121,518 ) 13,462 Results of producing activities$ 72,343 $ 199,109 $ (126,766 ) Amortization per physical unit of production(equivalent bbl of oil)$ 17.39 $ 17.53 $ 16.34
Year Ended December 31, 2006 Total Domestic Discontinued Operations Oil and gas sales$ 601,552 $ 537,513 $ 64,039 Lease operating cost(62,475 ) (49,948 ) (12,527 ) Severance and other taxes(65,452 ) (61,235 ) (4,217 ) Depreciation, depletion, and amortization(166,518 ) (136,826 ) (29,692 ) Accretion of asset retirement obligation(1,035 ) (885 ) (150 ) 306,072 288,619 17,453 Provision for income taxes(117,493 ) (113,139 ) (4,354