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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
OPERATING REVENUES |  |
Natural gas | $ 293,793 | $ 206,782
Crude oil and condensate | 65,655 | 49,981
Brokered natural gas | 10,893 | 13,444
Other | 2,944 | 1,929
TOTAL OPERATING REVENUES | 373,285 | 272,136
OPERATING EXPENSES |  |
Direct operations | 31,497 | 27,320
Transportation and gathering | 46,221 | 30,258
Brokered natural gas cost | 8,389 | 11,872
Taxes other than income | 11,687 | 18,583
Exploration | 4,024 | 4,001
Depreciation, depletion and amortization | 148,653 | 110,357
General and administrative | 35,704 | 22,549
TOTAL OPERATING EXPENSES | 286,175 | 224,940
Gain / (loss) on sale of assets | (96) | (535)
INCOME FROM OPERATIONS | 87,014 | 46,661
Interest expense and other | 16,255 | 16,917
Income before income taxes | 70,759 | 29,744
Income tax expense | 27,935 | 11,426
NET INCOME | $ 42,824 | $ 18,318
Earnings per share |  |
Basic (in dollars per share) | $ 0.20 | $ 0.09
Diluted (in dollars per share) | $ 0.20 | $ 0.09
Weighted-average shares outstanding |  |
Basic (in shares) | 210,150 | 209,128
Diluted (in shares) | 211,376 | 210,813
Dividends per common share (in dollars per share) | $ 0.02 | $ 0.02

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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 07-4 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 171 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 + Details
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