Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v2.4.0.8
Segment Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Operating results and assets of reportable segments          
Sales and revenues $ 762,490 $ 384,522 $ 1,242,035 $ 833,120  
Operating income (loss) 381,399 222,608 272,017 422,525  
Segment assets 9,315,880 5,672,208 9,315,880 5,672,208 6,613,581
Capital expenditures for segment assets 1,102,772 670,879 2,817,576 1,853,262  
Exploration and production
         
Operating results and assets of reportable segments          
Sales and revenues 739,780 384,522 1,207,023 833,120  
Gathering and compression
         
Operating results and assets of reportable segments          
Sales and revenues 26,282 7,138 54,978 12,630  
Fresh Water Distribution
         
Operating results and assets of reportable segments          
Sales and revenues 45,301 9,856 110,578 22,662  
Marketing
         
Operating results and assets of reportable segments          
Sales and revenues 17,835   23,048    
Operating segments
         
Operating results and assets of reportable segments          
Sales and revenues       833,120  
Operating segments | Exploration and production
         
Operating results and assets of reportable segments          
Sales and revenues 739,780 384,522 1,207,023 833,120  
Operating income (loss) 390,773 222,551 305,084 425,679  
Segment assets 8,696,189 5,587,703 8,696,189 5,587,703  
Capital expenditures for segment assets 936,059 526,998 2,335,936 1,532,150  
Operating segments | Gathering and compression
         
Operating results and assets of reportable segments          
Sales and revenues 1,884   4,831    
Operating income (loss) 7,012 1,413 8,251 (380)  
Segment assets 1,071,273 466,029 1,071,273 466,029  
Capital expenditures for segment assets 144,999 88,382 406,666 240,119  
Operating segments | Fresh Water Distribution
         
Operating results and assets of reportable segments          
Sales and revenues 2,991   7,133    
Operating income (loss) 29,732 7,718 67,847 17,414  
Segment assets 396,691 132,648 396,691 132,648  
Capital expenditures for segment assets 56,540 64,871 156,467 101,838  
Operating segments | Marketing
         
Operating results and assets of reportable segments          
Sales and revenues 17,835   23,048    
Operating income (loss) (14,357)   (35,071)    
Segment assets 9,084   9,084    
Elimination of intersegment transaction
         
Operating results and assets of reportable segments          
Sales and revenues (66,708) (16,994) (153,592) (35,292)  
Operating income (loss) (31,761) (9,074) (74,094) (20,188)  
Segment assets (857,357) (514,172) (857,357) (514,172)  
Capital expenditures for segment assets (34,826) (9,372) (81,493) (20,845)  
Elimination of intersegment transaction | Gathering and compression
         
Operating results and assets of reportable segments          
Sales and revenues 24,398 7,138 50,147 12,630  
Elimination of intersegment transaction | Fresh Water Distribution
         
Operating results and assets of reportable segments          
Sales and revenues $ 42,310 $ 9,856 $ 103,445 $ 22,662