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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
OPERATING REVENUES |  |
Natural gas | $ 433,442 | $ 227,578
Crude oil and condensate | 42,990 | 30,676
Gain on derivative instruments | 33,384 | 18,994
Brokered natural gas | 4,695 | 3,180
Other | 3,332 | 1,513
TOTAL OPERATING REVENUES | 517,843 | 281,941
OPERATING EXPENSES |  |
Direct operations | 24,641 | 26,035
Transportation and gathering | 123,474 | 109,652
Brokered natural gas | 4,046 | 2,566
Taxes other than income | 9,058 | 5,994
Exploration | 6,198 | 6,383
Depreciation, depletion and amortization | 135,100 | 161,887
General and administrative | 23,700 | 27,873
TOTAL OPERATING EXPENSES | 326,217 | 340,390
Earnings (loss) on equity method investments | (1,283) | 2,009
Gain (loss) on sale of assets | (223) | 1,354
INCOME (LOSS) FROM OPERATIONS | 190,120 | (55,086)
Interest expense | 20,771 | 24,375
Other expense | 424 | 503
Income (loss) before income taxes | 168,925 | (79,964)
Income tax expense (benefit) | 63,205 | (28,770)
NET INCOME (LOSS) | $ 105,720 | $ (51,194)
Earnings (loss) per share |  |
Basic (in dollars per share) | $ 0.23 | $ (0.12)
Diluted (in dollars per share) | $ 0.23 | $ (0.12)
Weighted-average common shares outstanding |  |
Basic (in shares) | 465,348 | 431,841
Diluted (in shares) | 466,888 | 431,841
Dividends per common share (in dollars per share) | $ 0.02 | $ 0.02

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- Definition Revenue related to brokering natural gas. The entity realizes brokered margin as a result of buying and selling natural gas in back-to-back transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62246-109447 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + 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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