Registration of securities issued in business combination transactions

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 9 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Revenues $ 237,762 $ 165,301 $ 630,918 $ 520,795 $ 677,982 $ 686,646 $ 659,475
Expenses:              
Operating expenses 153,741 101,484 414,336 300,942 414,064 418,144 471,278
Depreciation and amortization 35,882 29,779 97,674 85,357 113,017 112,136 115,030
Total expenses 189,623 131,263 512,010 386,299 527,081 530,280 586,308
Total operating gross margin 48,139 34,038 118,908 134,496 150,901 156,366 73,167
General and administration expense (14,188) [1] (8,905) [1] (49,449) [1] (21,822) [1] (46,052) (31,314) (30,728)
Impairments and other charges           (170,000)  
Provision for reduction in carrying value of certain assets         0 (1,350) (1,952)
Gain on disposition of assets, net 1,094 606 2,759 2,466 1,974 3,659 4,620
Total operating income (loss) 35,045 25,739 72,218 115,140 106,823 (42,639) 45,107
Other income and (expense):              
Interest expense (13,127) (8,171) (33,874) (25,133) (33,542) (22,594) (26,805)
Interest income 130 30 2,392 109 153 256 257
Loss on extinguishment of debt (5,218) (117) (5,218) (1,766) (2,130)   (7,209)
Change in fair value of derivative positions (5,218) 19 54 8 55 (110)  
Other 400 26 333 62 (382) (325) 155
Total other expense (17,815) (8,213) (36,313) (26,720) (35,846) (22,773) (33,602)
Income (loss) before income taxes 17,230 17,526 35,905 88,420 70,977 (65,412) 11,505
Income tax expense (benefit):              
Current tax expense         18,042 33,608 27,521
Deferred tax expense (benefit)     12,872 8,403 15,837 (48,375) (1,308)
Income tax expense 9,112 6,695 18,841 31,155 33,879 (14,767) 26,213
Net income (loss) 8,118 10,831 17,064 57,265 37,098 (50,645) (14,708)
Less: Net income (loss) attributable to noncontrolling interest 148 (105) 221 (146) (215) (194) (247)
Net income (loss) attributable to controlling interest $ 7,970 $ 10,936 $ 16,843 $ 57,411 $ 37,313 $ (50,451) $ (14,461)
Basic earnings per share $ 0.07 $ 0.09 $ 0.14 $ 0.49 $ 0.32 $ (0.43) $ (0.13)
Diluted earnings per share $ 0.07 $ 0.09 $ 0.14 $ 0.48 $ 0.31 $ (0.43) $ (0.13)
Number of common shares used in computing earnings per share:              
Basic 119,990,196 118,109,214 119,443,260 117,458,365 117,721,135 116,081,590 114,258,965
Diluted 121,674,591 119,201,019 121,693,781 118,810,195 119,093,590 116,081,590 114,258,965
[1] General and administration expenses for field operations are included in operating expenses.