Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (Unaudited)

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CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (Unaudited) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Revenues $ 226,001 $ 178,925 $ 393,156 $ 355,494
Expenses:        
Operating expenses 143,549 104,526 260,595 199,458
Depreciation and amortization 32,280 27,959 61,792 55,578
Total expenses 175,829 132,485 322,387 255,036
Total operating gross margin 50,172 46,440 70,769 100,458
General and administration expense (22,378) [1] (7,420) [1] (35,261) [1] (12,917)
Gain on disposition of assets, net 517 1,368 1,665 1,860
Total operating income 28,311 40,388 37,173 89,401
Other income and (expense):        
Interest expense (10,741) (8,925) (20,747) (16,962)
Change in fair value of derivative positions 17 38 54 (11)
Interest income 2,203 53 2,251 79
Loss on extinguishment of debt 0 (1,649) 0 (1,649)
Other (183) 20 (56) 36
Total other expense (8,704) (10,463) (18,498) (18,507)
Income before income taxes 19,607 29,925 18,675 70,894
Income tax expense 11,233 9,817 9,729 24,460
Net income 8,374 20,108 8,946 46,434
Less: Net income (loss) attributable to noncontrolling interest 93 25 73 (41)
Net income attributable to controlling interest $ 8,281 $ 20,083 $ 8,873 $ 46,475
Basic earnings per share $ 0.07 $ 0.17 $ 0.07 $ 0.40
Diluted earnings per share $ 0.07 $ 0.17 $ 0.07 $ 0.39
Number of common shares used in computing earnings per share:        
Basic, shares 119,483,780 117,410,212 119,177,431 117,129,364
Diluted, shares 121,860,011 118,526,879 121,498,223 118,623,037
[1] General and administration expenses for field operations are included in operating expenses.