Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.5.0.2
Segment Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Sales and revenues:          
Sales and revenues $ (249,198) $ 376,714 $ 471,806 $ 1,606,401  
Operating expenses:          
Lease operating 12,043 6,673 23,336 14,775  
Gathering, compression, processing, and transportation 206,060 166,669 414,798 330,331  
Depletion, depreciation, and amortization 197,362 177,046 388,944 359,346  
General and administrative expense 60,102 59,191 116,389 118,240  
Total operating expenses 640,675 540,463 1,282,930 1,070,456  
Operating income (loss) (889,873) (163,749) (811,124) 535,945  
Segment assets 13,558,780   13,558,780   $ 14,115,493
Exploration and production          
Sales and revenues:          
Sales and revenues (339,495) 322,672 282,274 1,488,761  
Gathering and compression          
Sales and revenues:          
Sales and revenues 71,916 56,593 141,543 108,836  
Water handling and treatment          
Sales and revenues:          
Sales and revenues 64,893 30,662 131,339 65,092  
Marketing          
Sales and revenues:          
Sales and revenues 90,902 49,829 190,118 107,609  
Operating segments          
Sales and revenues:          
Sales and revenues (249,198) 376,714 471,806 1,606,401  
Operating expenses:          
Lease operating 12,043 6,673 23,336 14,775  
Gathering, compression, processing, and transportation 206,060 166,669 414,798 330,331  
Depletion, depreciation, and amortization 197,362 177,046 388,944 359,346  
General and administrative expense 60,102 59,191 116,389 118,240  
Other operating expenses 165,108 130,884 339,463 247,764  
Total operating expenses 640,675 540,463 1,282,930 1,070,456  
Operating income (loss) (889,873) (163,749) (811,124) 535,945  
Segment assets 13,558,780 12,532,481 13,558,780 12,532,481  
Capital expenditures for segment assets 435,267 607,193 945,390 1,378,019  
Operating segments | Exploration and production          
Sales and revenues:          
Sales and revenues (343,394) 322,395 274,550 1,488,134  
Operating expenses:          
Lease operating 12,257 6,477 23,589 14,260  
Gathering, compression, processing, and transportation 267,738 213,560 535,183 419,239  
Depletion, depreciation, and amortization 173,015 155,586 340,567 317,091  
General and administrative expense 47,167 47,242 90,719 94,659  
Other operating expenses 37,848 46,866 73,013 85,836  
Total operating expenses 538,025 469,731 1,063,071 931,085  
Operating income (loss) (877,520) (147,059) (780,797) 557,676  
Segment assets 11,919,732 10,920,171 11,919,732 10,920,171  
Capital expenditures for segment assets 375,247 544,367 825,077 1,191,209  
Operating segments | Gathering and compression          
Sales and revenues:          
Sales and revenues 3,131 2,664 6,718 4,965  
Operating expenses:          
Gathering, compression, processing, and transportation 6,997 7,105 14,167 15,093  
Depletion, depreciation, and amortization 17,172 15,298 34,240 29,973  
General and administrative expense 10,138 9,917 19,473 19,418  
Other operating expenses 450 4,187 899 7,888  
Total operating expenses 34,757 36,507 68,779 72,372  
Operating income (loss) 37,159 20,086 72,764 36,464  
Segment assets 1,598,826 1,408,969 1,598,826 1,408,969  
Capital expenditures for segment assets 48,614 74,057 97,300 200,045  
Operating segments | Water handling and treatment          
Sales and revenues:          
Sales and revenues 163 1,826 420 5,693  
Operating expenses:          
Lease operating 34,317 5,851 75,031 12,603  
Depletion, depreciation, and amortization 7,175 6,162 14,137 12,282  
General and administrative expense 3,168 2,242 6,924 4,660  
Other operating expenses 4,294 778 8,498 1,638  
Total operating expenses 48,954 15,033 104,590 31,183  
Operating income (loss) 15,939 15,629 26,749 33,909  
Segment assets 569,624 416,910 569,624 416,910  
Capital expenditures for segment assets 41,589 11,950 78,625 34,076  
Operating segments | Marketing          
Sales and revenues:          
Sales and revenues 90,902 49,829 190,118 107,609  
Operating expenses:          
Other operating expenses 125,977 79,053 263,910 152,402  
Total operating expenses 125,977 79,053 263,910 152,402  
Operating income (loss) (35,075) (29,224) (73,792) (44,793)  
Segment assets 23,045 17,668 23,045 17,668  
Elimination of intersegment transaction          
Sales and revenues:          
Sales and revenues (137,414) (83,042) (273,468) (163,897)  
Operating expenses:          
Lease operating (34,531) (5,655) (75,284) (12,088)  
Gathering, compression, processing, and transportation (68,675) (53,996) (134,552) (104,001)  
General and administrative expense (371) (210) (727) (497)  
Other operating expenses (3,461)   (6,857)    
Total operating expenses (107,038) (59,861) (217,420) (116,586)  
Operating income (loss) (30,376) (23,181) (56,048) (47,311)  
Segment assets (552,447) (231,237) (552,447) (231,237)  
Capital expenditures for segment assets (30,183) (23,181) (55,612) (47,311)  
Elimination of intersegment transaction | Exploration and production          
Sales and revenues:          
Sales and revenues 3,899 277 7,724 627  
Elimination of intersegment transaction | Gathering and compression          
Sales and revenues:          
Sales and revenues 68,785 53,929 134,825 103,871  
Elimination of intersegment transaction | Water handling and treatment          
Sales and revenues:          
Sales and revenues $ 64,730 $ 28,836 $ 130,919 $ 59,399