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Statements of Consolidated Income (USD $)
In Thousands, except Per Share data
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Operating revenues $ 349,000 $ 257,515 $ 804,671 $ 694,155
Operating expenses:        
Purchased gas costs 21,459 15,969 119,673 129,931
Operation and maintenance 30,586 35,774 55,641 70,292
Production 19,765 16,532 35,876 33,153
Exploration 1,198 1,078 2,573 2,413
Selling, general and administrative 40,936 44,416 79,827 83,628
Depreciation, depletion and amortization 81,886 65,217 160,284 127,096
Total operating expenses 195,830 178,986 453,874 446,513
Operating income 153,170 78,529 350,797 247,642
Gain on disposition     22,785  
Other income 18,046 2,573 24,850 5,627
Interest expense 33,287 34,080 66,139 68,214
Income before income taxes 137,929 47,022 332,293 185,055
Income taxes 50,175 17,022 122,284 66,990
Net income $ 87,754 $ 30,000 $ 210,009 $ 118,065
Basic:        
Weighted average common shares outstanding (in shares) 149,444 147,575 149,347 140,440
Net income (in dollars per share) $ 0.59 $ 0.20 $ 1.41 $ 0.84
Diluted:        
Weighted average common shares outstanding (in shares) 150,111 148,289 150,034 141,270
Net income (in dollars per share) $ 0.58 $ 0.20 $ 1.40 $ 0.84
Dividends declared per common share (in dollars per share) $ 0.22 $ 0.22 $ 0.44 $ 0.44