Registration of securities issued in business combination transactions

Selected Quarterly Financial Data (Tables)

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Selected Quarterly Financial Data (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Selected Quarterly Financial Data
     Quarter  

Year 2012

   First      Second      Third      Fourth     Total  
     (Dollars in Thousands Except Per Share Amounts)  
     (Unaudited)  

Revenues

   $ 176,569       $ 178,925       $ 165,301       $ 157,187      $ 677,982   

Operating gross margin(2)

   $ 54,018       $ 46,440       $ 34,038       $ 16,405      $ 150,901   

Operating income

   $ 49,013       $ 40,388       $ 25,739       $ (8,317 )   $ 106,823   

Net income (loss) attributable to controlling interest

   $ 26,392       $ 20,083       $ 10,936       $ (20,098 )   $ 37,313   

Basic earnings per share — net income (loss)(1)

   $ 0.23       $ 0.17       $ 0.09       $ (0.17 )   $ 0.32   

Diluted earnings per share — net income (loss)(1)

   $ 0.22       $ 0.17       $ 0.09       $ (0.17 )   $ 0.31   
     Quarter  

Year 2011

   First      Second      Third      Fourth     Total  
     (Dollars in Thousands Except Per Share Amounts)  
     (Unaudited)  

Revenues

   $ 156,179       $ 172,812       $ 176,589       $ 181,066      $ 686,646   

Operating gross margin(2)

   $ 21,204       $ 40,797       $ 49,966       $ 44,399      $ 156,366   

Operating income

   $ 15,402       $ 33,215       $ 41,959       $ (133,215 )   $ (42,639 )

Net income (loss) attributable to controlling interest

   $ 4,827       $ 14,173       $ 20,725       $ (90,176 )   $ (50,451 )

Basic earnings per share — net income (loss)(1)

   $ 0.04       $ 0.12       $ 0.18       $ (0.77 )   $ (0.43 )

Diluted earnings per share — net income (loss)(1)

   $ 0.04       $ 0.12       $ 0.18       $ (0.77 )   $ (0.43 )

 

1) As a result of shares issued during the year, earnings per share for each of the year’s four quarters, which are based on weighted average shares outstanding during each quarter, may not equal the annual earnings per share, which is based on the weighted average shares outstanding during the year. Additionally, as a result of rounding to the thousands, revenues, operating gross margin, operating income, and net income (loss) attributable to controlling interest may not equal the 2012 year to date results.
2) As the Company modified our reporting segments to be consistent with recent organizational changes to improve our drilling organization, expenses related to our U.S. Barge Drilling segment were found to be incorrectly included in our general and administrative expense during the first through third quarters of the current year. These expenses have been appropriately reclassified to be included as part of the segment operating expenses, therefore our operating gross margin for each of the first three quarters will not agree to the respective 10-Q reports for the current year only.