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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
OPERATING REVENUES |  |  |  |
Natural gas | $ 224,806 | $ 437,761 | $ 584,997 | $ 870,571
Crude oil and condensate | 81,233 | 86,341 | 143,791 | 145,485
Gain (loss) on derivative instruments | (6,819) | (2,329) | 27,304 | (2,329)
Brokered natural gas | 3,813 | 8,140 | 8,640 | 21,293
Other | 3,264 | 3,274 | 6,330 | 7,970
TOTAL OPERATING REVENUES | 306,297 | 533,187 | 771,062 | 1,042,990
OPERATING EXPENSES |  |  |  |
Direct operations | 36,112 | 35,605 | 72,129 | 71,439
Transportation and gathering | 98,295 | 83,976 | 219,531 | 161,741
Brokered natural gas | 2,885 | 7,031 | 6,624 | 18,891
Taxes other than income | 11,611 | 12,816 | 22,891 | 25,860
Exploration | 5,298 | 4,676 | 14,030 | 11,150
Depreciation, depletion and amortization | 152,513 | 157,563 | 328,009 | 304,981
General and administrative | 19,978 | 20,127 | 42,507 | 41,763
TOTAL OPERATING EXPENSES | 326,692 | 321,794 | 705,721 | 635,825
Earnings (loss) on equity method investments | 1,512 | 756 | 2,933 | 756
Gain (loss) on sale of assets | (79) | (1,496) | 59 | (2,781)
INCOME (LOSS) FROM OPERATIONS | (18,962) | 210,653 | 68,333 | 405,140
Interest expense | 24,168 | 16,334 | 47,734 | 32,891
Income (loss) before income taxes | (43,130) | 194,319 | 20,599 | 372,249
Income tax (benefit) expense | (15,622) | 75,899 | 7,852 | 146,798
NET INCOME (LOSS) | $ (27,508) | $ 118,420 | $ 12,747 | $ 225,451
Earnings (loss) per share |  |  |  |
Basic (in dollars per share) | $ (0.07) | $ 0.28 | $ 0.03 | $ 0.54
Diluted (in dollars per share) | $ (0.07) | $ 0.28 | $ 0.03 | $ 0.54
Weighted-average common shares outstanding |  |  |  |
Basic (in shares) | 413,713 | 417,291 | 413,530 | 417,097
Diluted (in shares) | 413,713 | 419,092 | 414,878 | 418,742
Dividends per common share (in dollars per share) | $ 0.02 | $ 0.02 | $ 0.04 | $ 0.04

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- Definition Costs incurred in brokering natural gas during the reporting period. The entity buys and sells natural gas utilizing separate purchase and sale transactions, typically with separate counterparties, whereby the entity and/or counterparty takes title to the natural gas purchases or sold. The entity recognizes the related revenues and expenses gross and realizes brokered margin as a result of buying and selling natural gas. + References No definition available. + Details
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- Definition Revenue related to brokering natural gas. The entity buys and sells natural gas utilizing separate purchase and sale transactions, typically with separate counterparties, whereby the entity and/or counterparty takes title to the natural gas purchases or sold. The entity recognizes the related revenues and expenses gross and realizes brokered margin as a result of buying and selling natural gas. + References No definition available. + Details
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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -Section 25 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=56951519&loc=d3e64954-109465 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(a)(15)) -URI http://asc.fasb.org/extlink&oid=50486907&loc=d3e511914-122862 + Details
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- Definition Cost incurred related to the gas activities, such as transportation, marketing and processing crude oil, natural gas and refined petroleum products. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=51678428&loc=d3e62136-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration