XML 41 R62.htm IDEA: XBRL DOCUMENT v2.4.0.8
Property, Plant and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Oil and natural gas properties    
Proved(1) $ 10,807,088 [1] $ 10,972,816 [1]
Unproved 309,043 531,606
Total oil and natural gas properties 11,116,131 11,504,422
Less: accumulated depreciation, depletion and impairment (6,138,833) (5,762,969)
Net oil and natural gas properties capitalized costs 4,977,298 5,741,453
Land 18,270 18,423
Non-oil and natural gas equipment(2) 614,198 [2] 600,603 [2]
Buildings and structures(3) 244,076 [3] 233,405 [3]
Total 876,544 852,431
Less accumulated depreciation and amortization (312,023) (286,209)
Other property, plant and equipment, net 564,521 566,222
Total property, plant and equipment, net $ 5,541,819 $ 6,307,675
[1] Includes cumulative capitalized interest of approximately $29.0 million and $23.4 million at June 30, 2014 and December 31, 2013, respectively.
[2] Includes cumulative capitalized interest of approximately $4.3 million at both June 30, 2014 and December 31, 2013.
[3] Includes cumulative capitalized interest of approximately $14.4 million and $12.0 million at June 30, 2014 and December 31, 2013, respectively.