CNX Resources (CNX) 10-Q 29 Jul 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Jul. 15, 2016
Document Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Entity Registrant Name	CONSOL Energy Inc
Entity Central Index Key	1,070,412
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		229,435,607

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Natural Gas, NGLs and Oil Sales	$ 167,933	$ 159,654	$ 349,188	$ 384,092
Unrealized Gain (Loss) on Commodity Derivatives	(199,380)	17,322	(144,320)	107,467
Coal Sales	251,166	318,995	477,330	705,021
Other Revenue, Net	8,059	6,337	15,768	19,467
Purchased Gas Sales	7,929	1,517	16,547	5,114
Freight-Outside	11,447	2,750	24,557	7,768
Other Income (including equity earnings)	33,032	34,687	81,163	71,208
Gain (Loss) on Sale of Assets	5,614	4,312	(1,662)	6,286
Total Revenue and Other Income	285,800	545,574	818,571	1,306,423
Oil and Gas Property, Lease Operating Expense	23,655	29,521	51,394	66,777
Gas Gathering, Transportation, Marketing and Processing Costs	90,983	83,196	184,957	158,717
Production Tax Expense	6,402	6,938	14,705	16,130
E&P Depreciation, Depletion, and Amortization	105,151	89,850	210,866	177,294
Exploration and Production Costs	2,823	2,324	5,231	4,364
Production Royalty Interests and Purchased Gas Costs	8,884	1,061	16,752	4,018
Other Expenses	30,656	20,622	58,350	39,718
Impairment of Oil and Gas Properties	0	828,905	0	828,905
Results of Operations, General and Administrative Related to Oil and Gas Producing Activities	16,175	21,070	33,738	42,894
Oil and Gas Production Expense	284,729	1,083,487	575,993	1,338,817
Operating Expenses	217,465	213,022	401,834	474,765
Coal Depreciation, Depletion, Amortization	30,069	48,280	79,342	102,982
Freight Expense	11,447	2,750	24,557	7,768
General and Administrative Expense	6,174	6,147	10,660	12,678
Other Cost and Expense, Operating	4,355	10,207	7,498	16,282
Cost of Coal Products and Services	269,510	280,406	523,891	614,475
Other Nonoperating Expense	17,497	14,045	20,686	24,420
Depreciation, Depletion and Amortization, Nonproduction	1	5	1	12
Gains (Losses) on Extinguishment of Debt	0	17	0	67,751
Interest Expense	47,427	46,506	97,292	101,627
Other General Expense	64,925	60,573	117,979	193,810
Total Costs	619,164	1,424,466	1,217,863	2,147,102
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(333,364)	(878,892)	(399,292)	(840,679)
Income Tax Expense (Benefit)	(100,354)	(301,669)	(123,571)	(316,652)
Income (Loss) from Continuing Operations Attributable to Parent	(233,010)	(577,223)	(275,721)	(524,027)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(235,639)	(26,078)	(289,391)	(244)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(468,649)	(603,301)	(565,112)	(524,271)
Net Income (Loss) Attributable to Noncontrolling Interest	1,179	0	2,293	0
Net Income (Loss)	$ (469,828)	$ (603,301)	$ (567,405)	$ (524,271)

Consolidated Statements of Inc3

Consolidated Statements of Income Earnings Per Share - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations, Per Basic Share	$ (1.02)	$ (2.52)	$ (1.21)	$ (2.29)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	(1.03)	(0.12)	(1.26)	0
Earnings Per Share, Basic	(2.05)	(2.64)	(2.47)	(2.29)
Income (Loss) from Continuing Operations, Per Diluted Share	(1.02)	(2.52)	(1.21)	(2.29)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	(1.03)	(0.12)	(1.26)	0
Earnings Per Share, Diluted	(2.05)	(2.64)	(2.47)	(2.29)
Common Stock, Dividends, Per Share, Cash Paid	$ 0	$ 0.06	$ 0.0100	$ 0.1250

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Condensed Statement of Income Captions [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (468,649)	$ (603,301)	$ (565,112)	$ (524,271)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	8,045	9,467	5,561	9,318
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(11,203)	(20,804)	(21,017)	(40,118)
Other Comprehensive Income (Loss), Net of Tax	(3,158)	(11,337)	(15,456)	(30,800)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(471,807)	(614,638)	(580,568)	(555,071)
Net Income (Loss) Attributable to Noncontrolling Interest	1,179	0	2,293	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (472,986)	$ (614,638)	$ (582,861)	$ (555,071)

Consolidated Statements of Com5

Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2016
Other Comprehensive Income (Loss), Tax	$ 12,103	$ 6,521
Adjustment For Actuarially Determined Liabilities [Member]
Other Comprehensive Income (Loss), Tax	$ (4,875)	$ (5,008)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current Assets:
Cash and Cash Equivalents	$ 97,626	$ 72,574
Accounts and Notes Receivable:
Trade	153,977	151,383
Other Receivables, Net, Current	94,125	121,735
Inventories	60,818	66,792
Recoverable Income Taxes	0	13,887
Prepaid Expenses	103,526	297,287
Disposal Group, Including Discontinued Operation, Assets, Current	16,168	81,106
Total Current Assets	526,240	804,764
Property, Plant and Equipment:
Property, Plant and Equipment	13,866,137	13,794,907
Less-Accumulated Depreciation, Depletion and Amortization	5,360,046	5,062,201
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	103,085	936,670
Total Property, Plant and Equipment-Net	8,609,176	9,669,376
Other Assets:
Deferred Income Taxes	175,929	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	256,167	237,330
Other	214,079	214,388
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	3,166	4,044
Total Other Assets	649,341	455,762
Total Assets	9,784,757	10,929,902
Current Liabilities:
Accounts Payable	171,359	250,609
Current Portion of Long-Term Debt	4,368	4,988
Notes and Loans Payable, Current	466,000	952,000
Accrued Income Taxes, Current	5,459	0
Other Accrued Liabilities	479,255	421,827
Disposal Group, Including Discontinued Operation, Liabilities, Current	24,938	51,514
Total Current Liabilities	1,151,379	1,680,938
Long-Term Debt:
Long-Term Debt	2,723,004	2,708,320
Capital Lease Obligations	31,494	34,884
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	1,254	5,001
Total Long-Term Debt	2,755,752	2,748,205
Deferred Credits and Other Liabilities
Deferred Tax Liabilities, Net, Noncurrent	0	74,629
Postretirement Benefits Other Than Pensions	619,220	630,892
Pneumoconiosis Benefits	117,984	111,903
Mine Closing	214,344	227,339
Gas Well Closing	164,195	163,842
Workers' Compensation	68,687	69,812
Salary Retirement	87,321	91,596
Reclamation	246	25
Other Liabilities, Noncurrent	244,354	166,957
Disposal Group, Including Discontinued Operation, Other Liabilities	89,845	107,988
Total Deferred Credits and Other Liabilities	1,606,196	1,644,983
TOTAL LIABILITIES	5,513,327	6,074,126
Stockholders' Equity:
Common Stock, $.01 Par Value; 500,000,000 Shares Authorized, 229,433,854 Issued and Outstanding at June 30, 2016; 229,054,236 Issued and Outstanding at December 31, 2015	2,298	2,294
Capital in Excess of Par Value	2,445,840	2,435,497
Preferred Stock, 15,000,000 shares authorized, None issued and outstanding	0	0
Retained Earnings	2,008,514	2,579,834
Accumulated Other Comprehensive Loss	(331,054)	(315,598)
Stockholders' Equity Attributable to Parent	4,125,598	4,702,027
Stockholders' Equity Attributable to Noncontrolling Interest	145,832	153,749
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	4,271,430	4,855,776
TOTAL LIABILITIES AND EQUITY	$ 9,784,757	$ 10,929,902

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Jun. 30, 2016	Dec. 31, 2015
Common Stock [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	500,000,000	500,000,000
Common Stock, Shares, Issued	229,433,854	229,054,236
Common Stock, Shares, Outstanding	229,433,854	229,054,236
Treasury Stock, Shares	0	0
Preferred Stock [Member]
Preferred Stock, Shares Authorized	15,000,000	15,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2016 - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings (Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total CONSOL Energy Inc. Stockholders' Equity [Member]	Noncontrolling Interest [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2015	$ 4,855,776	$ 2,294	$ 2,435,497	$ 2,579,834	$ (315,598)	$ 4,702,027	$ 153,749
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(565,112)	0	0	(567,405)	0	(567,405)	2,293
Net Income (Loss)	(567,405)
Other Comprehensive Income (Loss), Net of Tax	(15,456)	0	0	0	(15,456)	(15,456)	0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(580,568)	0	0	(567,405)	(15,456)	(582,861)	2,293
Proceeds from Issuance of Common Stock	4	4	0	0	0	4	0
Restricted Stock Award, Forfeitures	(1,621)	0	0	(1,621)	0	(1,621)	0
Adjustments to Additional Paid in Capital, Income Tax Deficiency from Share-based Compensation	(5,096)	0	(5,096)	0	0	(5,096)	0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	16,054	0	15,439	0	0	15,439	615
Noncontrolling Interest, Period Increase (Decrease)	(10,825)	0	0	0	0	0	(10,825)
Dividends, Cash	(2,294)	0	0	2,294	0	2,294	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Jun. 30, 2016	$ 4,271,430	$ 2,298	$ 2,445,840	$ 2,008,514	$ (331,054)	$ 4,125,598	$ 145,832

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (565,112)	$ (524,271)
Adjustments to Reconcile Net Income to Net Cash Provided By Operating Activities:
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	289,391	244
Depreciation, Depletion and Amortization	290,209	280,288
Impairment of Oil and Gas Properties	0	828,905
Non-Cash Other Post-Employment Benefits	0	(50,925)
Stock-Based Compensation	16,054	14,129
(Gain) Loss on Sale of Assets	1,662	(6,286)
Gains (Losses) on Extinguishment of Debt	0	67,751
Gain (Loss) on Hedging Activity	144,320	(107,467)
Increase (Decrease) Cash Collateral from Counterparties	164,666	72,399
Deferred Income Taxes	(124,516)	(312,234)
Equity in Earnings of Affiliates	(25,884)	(23,250)
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	9,192	8,162
Changes in Operating Assets:
Accounts and Notes Receivable	18,101	93,180
Inventories	(7,947)	(8,118)
Prepaid Expenses	47,136	83,570
Changes in Other Assets	(15,298)	16,943
Changes in Operating Liabilities:
Accounts Payable	(45,781)	(93,870)
Increase (Decrease) in Interest Payable, Net	(807)	26,149
Other Operating Liabilities	(14,069)	(118,056)
Changes in Other Liabilities	15,343	(56,340)
Other	9,648	56,800
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	206,308	247,703
Cash Provided by (Used in) Operating Activities, Discontinued Operations	17,433	46,512
Net Cash Provided by Operating Activities	223,741	294,215
Investing Activities:
Capital Expenditures	(115,257)	(616,484)
Proceeds from Sale of Productive Assets	18,284	6,931
Net Investment in Equity Affiliates	(5,578)	(43,761)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	(102,551)	(653,314)
Cash Provided by (Used in) Investing Activities, Discontinued Operations	394,511	(19,301)
Net Cash Used in Investing Activities	291,960	(672,615)
Financing Activities:
(Payments on) Proceeds from Short-Term Borrowings	(486,000)	1,058,000
Payments on Miscellaneous Borrowings	(4,459)	(4,029)
Payments On Long Term Notes Including Redemption Premium	0	(1,263,719)
Net Proceeds from Revolver - MLP	13,000	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(10,825)	0
Proceeds from Securitization Facility	0	38,669
Proceeds from Issuance of Long-Term Notes	0	492,760
Tax Benefit from Stock-Based Compensation	0	198
Dividends Paid	(2,294)	(28,711)
Proceeds from Issuance of Common Stock	4	8,288
Treasury Stock, Retired, Cost Method, Amount	0	(71,674)
Debt Issuance and Financing Fees	0	(18,257)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	(490,574)	211,525
Cash Provided by (Used in) Financing Activities, Discontinued Operations	(75)	(83)
Net Cash (Used in) Provided by Financing Activities	(490,649)	211,442
Net Increase in Cash and Cash Equivalents	25,052
Cash and Cash Equivalents, at Carrying Value	72,574	176,985
Cash and Cash Equivalents at End of Period	$ 97,626	$ 10,027

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2016
BASIS OF PRESENTATION: [Abstract]
Basis of Presentation	BASIS OF PRESENTATION: The accompanying Unaudited Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six months ended June 30, 2016 are not necessarily indicative of the results that may be expected for future periods. The Consolidated Balance Sheet at December 31, 2015 has been derived from the Audited Consolidated Financial Statements at that date but does not include all the notes required by generally accepted accounting principles for complete financial statements. For further information, refer to the Consolidated Financial Statements and related notes for the year ended December 31, 2015 included in CONSOL Energy Inc.'s Annual Report on Form 10-K. During the six months ended June 30, 2016 , CONSOL Energy Inc. ("CONSOL Energy" or "the Company") made certain adjustments to the financial statements to reflect the sale of the Buchanan Mine, which is now reflected under "discontinued operations." Additionally, CONSOL Energy made reclassifications within its financial statements to better align the Company's financial reporting with its peer group. These reclassifications impacted the "Lease Operating Expense", "Transportation, Gathering and Compression," "Direct Administrative and Selling," "Production Royalty Interests and Purchased Gas Sales," "Production Royalty Interests and Purchased Gas Costs," "Operating and Other Costs" and "Selling, General and Administrative" line items on the Company's Consolidated Statements of Income. These changes are reflected in CONSOL Energy's current and historic Consolidated Statements of Income, with no effect on previously reported net income or stockholders’ equity. During the quarter ended June 30, 2016 , CONSOL Energy's Board of Directors approved the sale of the Fola and Miller Creek Mining Complexes. The Company was actively marketing these mines for sale, and believed the transaction would close within twelve months. As such, the expected sale caused the Company to classify these assets as held for sale in discontinued operations on CONSOL Energy's Consolidated Balance Sheets, include the results of operations in discontinued operations on the Consolidated Statements of Income and cash flows from discontinued operations in the Consolidated Statements of Cash Flow. See Note 2 - Discontinued Operations for more information. Basic earnings per share are computed by dividing net income attributable to CONSOL Energy Shareholders by the weighted average shares outstanding during the reporting period. Dilutive earnings per share are computed similarly to basic earnings per share, except that the weighted average shares outstanding are increased to include additional shares from stock options, performance stock options, restricted stock units and performance share units, if dilutive. The number of additional shares is calculated by assuming that outstanding stock options and performance share options were exercised, that outstanding restricted stock units and performance share units were released, and that the proceeds from such activities were used to acquire shares of common stock at the average market price during the reporting period. CONSOL Energy includes the impact of pro forma deferred tax assets in determining potential windfalls and shortfalls for purposes of calculating assumed proceeds under the treasury stock method. The table below sets forth the share-based awards that have been excluded from the computation of the diluted earnings per share because their effect would be anti-dilutive: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Anti-Dilutive Options 6,348,665 3,667,080 6,348,665 3,667,080 Anti-Dilutive Restricted Stock Units 742,868 1,606,672 742,868 1,606,672 Anti-Dilutive Performance Share Units 951,541 — 951,541 — Anti-Dilutive Performance Stock Options 802,804 802,804 802,804 802,804 8,845,878 6,076,556 8,845,878 6,076,556 The table below sets forth the share-based awards that have been exercised or released: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Options — 287,592 — 363,620 Restricted Stock Units 83,710 37,149 568,390 486,507 Performance Share Units — — — 497,134 83,710 324,741 568,390 1,347,261 No options were exercised during the three and six months ended June 30, 2016 . The weighted average exercise price per share of the options exercised during the three and six months ended June 30, 2015 was $ 22.78 . The computations for basic and dilutive earnings per share are as follows: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Loss from Continuing Operations $ (233,010 ) $ (577,223 ) $ (275,721 ) $ (524,027 ) Loss from Discontinued Operations (235,639 ) (26,078 ) (289,391 ) (244 ) Net Loss $ (468,649 ) $ (603,301 ) $ (565,112 ) $ (524,271 ) Net Income Attributable to Noncontrolling Interest 1,179 — 2,293 — Net Loss Attributable to CONSOL Energy Shareholders $ (469,828 ) $ (603,301 ) $ (567,405 ) $ (524,271 ) Weighted Average Shares of Common Stock Outstanding: Basic 229,409,325 228,928,803 229,334,277 229,329,382 Effect of Stock-Based Compensation Awards — — — — Dilutive 229,409,325 228,928,803 229,334,277 229,329,382 Loss per Share: Basic (Continuing Operations) $ (1.02 ) $ (2.52 ) $ (1.21 ) $ (2.29 ) Basic (Discontinued Operations) (1.03 ) (0.12 ) (1.26 ) — Total Basic $ (2.05 ) $ (2.64 ) $ (2.47 ) $ (2.29 ) Dilutive (Continuing Operations) $ (1.02 ) $ (2.52 ) $ (1.21 ) $ (2.29 ) Dilutive (Discontinued Operations) (1.03 ) (0.12 ) (1.26 ) — Total Dilutive $ (2.05 ) $ (2.64 ) $ (2.47 ) $ (2.29 ) Changes in Accumulated Other Comprehensive Loss by component, net of tax, were as follows: Gains on Cash Flow Hedges Postretirement Benefits Total Balance at December 31, 2015 $ 43,470 $ (359,068 ) $ (315,598 ) Other Comprehensive Loss before Reclassifications — (9,046 ) (9,046 ) Amounts reclassified from Accumulated Other Comprehensive Loss (21,017 ) 14,607 (6,410 ) Current period Other Comprehensive (Loss) Income (21,017 ) 5,561 (15,456 ) Balance at June 30, 2016 $ 22,453 $ (353,507 ) $ (331,054 ) The following table shows the reclassification of adjustments out of Accumulated Other Comprehensive Loss: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Derivative Instruments (Note 14) Natural Gas Price Swaps and Options $ (17,724 ) $ (32,907 ) $ (33,162 ) $ (63,434 ) Tax Expense 6,521 12,103 12,145 23,316 Net of Tax $ (11,203 ) $ (20,804 ) $ (21,017 ) $ (40,118 ) Actuarially Determined Long-Term Liability Adjustments* (Note 5 and Note 6) Amortization of Prior Service Costs $ (148 ) $ (54,495 ) $ (295 ) $ (69,308 ) Recognized Net Actuarial Loss 5,706 24,169 11,217 38,742 Settlement Loss 13,696 — 13,696 — Total 19,254 (30,326 ) 24,618 (30,566 ) Tax (Benefit) Expense (7,178 ) 11,398 (9,196 ) 11,488 Net of Tax $ 12,076 $ (18,928 ) $ 15,422 $ (19,078 )

Discontinued Operations (Notes)

Discontinued Operations (Notes)	6 Months Ended
	Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	DISCONTINUED OPERATIONS: At June 30, 2016, CONSOL Energy's Board of Directors had approved the sale of the Fola and Miller Creek mining complexes. In addition, the Company was actively marketing these mines and believed the transaction would close within twelve months (See Note 21 - Subsequent Events for more information). As such, the expected sale caused the Company to classify these assets as held for sale in "discontinued operations" on CONSOL Energy's Consolidated Balance Sheets, to include the results of operations in discontinued operations in the Consolidated Statement of Income and cash flows from discontinued operations in the Consolidated Statements of Cash Flow. In accordance with the accounting guidance for Property, Plant and Equipment, assets held for sale are measured at the lower of the carrying value or fair value less costs to sell. Upon meeting the assets held for sale criteria, the Company determined the carrying value of the Fola and Miller Creek mining complexes exceeded the fair value less costs to sell. As a result, an impairment charge of $355,681 was recorded during the three months ended June 30, 2016. This impairment is included in the Loss from Discontinued Operations, net in the accompanying Consolidated Statements of Income. On March 31, 2016, CONSOL Energy completed the sale of its membership interests in CONSOL Buchanan Mining Company, LLC (BMC), which owned and operated the Buchanan Mine located in Mavisdale, Virginia; various assets relating to the Amonate Mining Complex located in Amonate, Virginia; Russell County, Virginia coal reserves and Pangburn Shaner Fallowfield coal reserves located in Southwestern, Pennsylvania to Coronado IV LLC ("Coronado"). Various CONSOL Energy assets were excluded from the sale including coalbed methane, natural gas and minerals other than coal, current assets of BMC, certain coal seams, certain surface rights, and the Amonate Preparation Plant. Coronado assumed only specified liabilities and various CONSOL Energy liabilities were excluded and not assumed. The excluded liabilities included BMC’s indebtedness, trade payables and liabilities arising prior to closing, as well as the liabilities of the subsidiaries other than BMC which are parties to the sale. In addition, the buyer agreed to pay CONSOL Energy for Buchanan Mine coal sold outside the U.S. and Canada during the five years following closing a royalty of 20% of any excess of the gross sales price per ton over the following amounts: (1) year one, $75.00 per ton; (2) year two, $78.75 per ton; (3) year three, $82.69 per ton; (4) year four, $86.82 per ton; (5) year five, $91.16 per ton. At closing, the parties entered into several agreements including, among others, agreements relating to the coordination and conduct of gas operations at the mines, an option to purchase the Amonate Preparation Plant and transition services. Cash proceeds of $402,799 were received at closing and are included in Net Cash Provided by Discontinued Investing Activities on the Consolidated Statements of Cash Flow. The net loss on the sale was $38,364 and was included in Loss from Discontinued Operations, net on the Consolidated Statements of Income. For all periods presented in the accompanying Consolidated Statements of Income, the sale of BMC along with the various other assets are classified as discontinued operations. The Fola and Miller Creek Mining Complexes were classified as held for sale in discontinued operations. The following table details selected financial information for the divested business included within discontinued operations and the businesses that are held for sale in discontinued operations: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Coal Sales $ 19,411 $ 95,484 $ 95,930 $ 206,124 Freight-Outside Coal 5 1,501 1,017 3,008 Miscellaneous Other Income 2 20 33 31 Gain (Loss) on Sale of Assets 100 3 (38,253 ) 194 Total Revenue and Other Income $ 19,518 $ 97,008 $ 58,727 $ 209,357 Total Coal Costs 26,547 113,347 115,780 210,481 Loss From Operations Before Income Taxes $ (7,029 ) $ (16,339 ) $ (57,053 ) $ (1,124 ) Impairment on Assets Held for Sale 355,681 — 355,681 — Income Tax (Benefit) Expense (127,071 ) 9,739 (123,343 ) (880 ) Loss From Discontinued Operations, net $ (235,639 ) $ (26,078 ) $ (289,391 ) $ (244 ) The major classes of assets and liabilities of discontinued operations and held for sale in discontinued operations are as follows: June 30, December 31, Assets: Accounts Receivable - Trade $ 10,672 $ 49,125 Inventories 5,422 30,646 Prepaid Expense 9 970 Other Current Assets 65 365 Total Current Assets $ 16,168 $ 81,106 Property, Plant and Equipment, Net 103,085 936,670 Other Assets 3,166 4,044 Total Assets of Discontinued Operations $ 122,419 $ 1,021,820 Liabilities: Accounts Payable $ 5,177 $ 20,786 Other Current Liabilities 19,761 30,728 Total Current Liabilities $ 24,938 $ 51,514 Long Term Debt 1,254 5,001 Pneumoconiosis Benefits — 1,129 Mine Closing 61,329 71,941 Reclamation 28,516 34,126 Other liabilities — 792 Total Liabilities of Discontinued Operations $ 116,037 $ 164,503

Acquisitions and Dispositions

Acquisitions and Dispositions	6 Months Ended
	Jun. 30, 2016
ACQUISITIONS AND DISPOSITIONS: [Abstract]
Acquisitions and Dispositions:	ACQUISITIONS AND DISPOSITIONS: In December 2014, CNX Gas Company LLC (CNX Gas Company), a wholly-owned subsidiary of CONSOL Energy, finalized an agreement with Columbia Energy Ventures (CEVCO) to sublease from CEVCO approximately 20,000 acres of Utica Shale and Upper Devonian gas rights in Greene and Washington Counties in Pennsylvania and Marshall and Ohio Counties in West Virginia. Up-front bonus consideration of up to $ 96,106 will be paid by CONSOL Energy over a five year period, as drilling occurs, in addition to royalties, of which $ 49,533 was recorded in Other Current Liabilities and $ 40,286 was recorded on a discounted basis in Other Long-Term Liabilities. CONSOL Energy did not make a payment to CEVCO in the six months ended June 30, 2016 while $15,216 of payments were made for the six months ended June 30, 2015. At June 30, 2016 , the amounts recorded in Other Current Liabilities and Other Long-Term Liabilities were $ 9,000 and $ 28,682 , respectively. At December 31, 2015, the amounts recorded in Other Current Liabilities and Other Long-Term Liabilities were $ 8,349 and $ 29,333 , respectively.

Other Income (Notes)

Other Income (Notes)	6 Months Ended
	Jun. 30, 2016
Component of Operating Income [Abstract]
Other Income and Other Expense Disclosure [Text Block]	Three Months Ended Six Months Ended June 30, June 30, 2016 2015 2016 2015 Rental Income $ 9,079 $ 9,406 $ 18,275 $ 18,998 Equity in Earnings of Affiliates - CONE 8,205 9,381 22,556 17,037 Coal Contract Buyout 6,288 — 6,288 — Gathering Revenue 2,648 1,393 5,396 5,953 Royalty Income - Coal 2,423 3,602 4,653 8,142 Right of Way Issuance 2,070 5,422 17,803 7,950 Equity in Earnings of Affiliates - Other 1,014 2,546 3,328 6,213 Interest Income 547 364 761 1,507 Other 758 2,573 2,103 5,408 Total Miscellaneous Other Income $ 33,032 $ 34,687 $ 81,163 $ 71,208

Pension and OPEB - Periodic Cos

Pension and OPEB - Periodic Cost	6 Months Ended
	Jun. 30, 2016
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS NET PERIODIC BENEFIT COSTS: [Abstract]
Components of Pension and Other Postretirement Benefit Plans:	COMPONENTS OF PENSION AND OTHER POST-EMPLOYMENT BENEFIT (OPEB) PLANS NET PERIODIC BENEFIT COSTS: Components of net periodic benefit costs are as follows: Pension Benefits Other Post-Employment Benefits For the Three Months Ended June 30, For the Six Months Ended June 30, For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 2016 2015 2016 2015 Service Cost $ 482 $ 2,350 $ 963 $ 4,700 $ — $ — $ — $ — Interest Cost 6,841 8,580 13,683 17,160 6,060 6,889 12,121 13,884 Expected Return on Plan Assets (11,869 ) (12,690 ) (23,738 ) (25,379 ) — — — — Amortization of Prior Service Credits (148 ) (176 ) (295 ) (352 ) — (54,320 ) — (68,956 ) Recognized net Actuarial Loss 2,116 6,940 4,232 13,880 4,792 18,522 9,584 27,448 Settlement Loss 13,696 — 13,696 — — — — — Net Periodic Benefit Cost (Credit) $ 11,118 $ 5,004 $ 8,541 $ 10,009 $ 10,852 $ (28,909 ) $ 21,705 $ (27,624 ) According to the Defined Benefit Plans Topic of the Financial Accounting Standards Board (FASB) Accounting Standards Codification, if the lump sum distributions made during a plan year, which for CONSOL Energy is January 1 to December 31, exceed the total of the projected service cost and interest cost for the plan year, settlement accounting is required. Lump sum payments exceeded this threshold during the three and six months ended June 30, 2016 . Accordingly, CONSOL Energy recognized settlement expense of $13,696 for the three and six months ended June 30, 2016 in Other Costs - Miscellaneous Operating Expense in the Consolidated Statements of Income. The settlement charges represented a pro rata portion of the net unrecognized loss based on the percentage reduction in the projected benefit obligation due to the lump sum payments. The settlement charges also resulted in a remeasurement of the pension plan, which increased the pension liability by $6,203 . The remeasurement on June 30, 2016 used a discount rate of 3.73% , a decrease from 4.50% used at December 31, 2015. The settlement and corresponding remeasurement of the pension plan resulted in a decrease of $4,558 in Other Comprehensive Loss, net of $2,935 in deferred taxes. For the six months ended June 30, 2016 and 2015 , $ 1,307 and $2,521 was paid to the pension trust from operating cash flows, respectively. Additional contributions to the pension trust are not expected to be material for the remainder of 2016 . CONSOL Energy does not expect to contribute to the other post-employment benefit plan in 2016 . The Company intends to pay benefit claims as they become due. For the six months ended June 30, 2016 and 2015 , $23,312 and $26,935 of other post-employment benefits have been paid

CWP and Workers Comp - Net Peri

CWP and Workers Comp - Net Periodic Costs	6 Months Ended
	Jun. 30, 2016
CWP And Workers Comp Net Periodic Cost [Abstract]
Coal Workers' Pneumoconiosis (CWP) and Workers' Compensation:	COMPONENTS OF COAL WORKERS’ PNEUMOCONIOSIS (CWP) AND WORKERS’ COMPENSATION NET PERIODIC BENEFIT COSTS: Components of net periodic benefit costs are as follows: CWP Workers' Compensation For the Three Months Ended June 30, For the Six Months Ended June 30, For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 2016 2015 2016 2015 Service Cost $ 1,041 $ 1,623 $ 2,244 $ 3,246 $ 1,904 $ 2,347 $ 3,809 $ 4,695 Interest Cost 1,053 1,279 2,176 2,558 638 799 1,275 1,597 Amortization of Actuarial Gain (1,188 ) (1,394 ) (2,571 ) (2,788 ) (101 ) (8 ) (202 ) (15 ) State Administrative Fees and Insurance Bond Premiums — — — — 968 973 1,699 1,876 Curtailment Gain — — (1,307 ) — — — — — Net Periodic Benefit Cost $ 906 $ 1,508 $ 542 $ 3,016 $ 3,409 $ 4,111 $ 6,581 $ 8,153 Expense (income) attributable to discontinued operations included in the CWP net periodic cost above was $305 for the three months ended June 30, 2015 , and $(1,290) and $380 for the six months ended June 30, 2016 and 2015 , respectively. On March 31, 2016, CONSOL Energy completed the sale of its membership interests in BMC (See Note 2 - Discontinued Operations). As a result of the sale, certain obligations of the CWP plan were transferred the buyer. This transfer triggered a curtailment gain of $1,307 . The curtailment resulted in a plan remeasurement increasing plan liabilities by $5,014 , net of $2,700 deferred tax at March 31, 2016. CONSOL Energy does not expect to contribute to the CWP plan in 2016 . The Company intends to pay benefit claims as they become due. For the six months ended June 30, 2016 and 2015 , $5,600 and $5,293 of CWP benefit claims have been paid, respectively. CONSOL Energy does not expect to contribute to the workers’ compensation plan in 2016 . The Company intends to pay benefit claims as they become due. For the six months ended June 30, 2016 and 2015 , $8,075 and $8,821 of workers’ compensation benefits, state administrative fees and surety bond premiums have been paid

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES: The effective tax rate for the three and six months ended June 30, 2016 was 30.0% and 30.8% , respectively. The effective tax rate is different from the U.S. federal statutory rate of 35% primarily due to charges to record state valuation allowances and the effects of the 2010-2013 Federal tax audit still in progress, partially offset by a larger anticipated book loss and the income tax benefit for excess percentage depletion. The effective tax rate for the three and six months ended June 30, 2015 was 34.3% and 37.7% , respectively. The effective tax rate is different from the U.S. federal statutory rate of 35% primarily due to impairment charges recorded in June 2015. In addition, as the Company's loss for the six months ended June 30, 2015 exceeded the anticipated ordinary loss for the full year, the tax benefit recognized for the six months ended June 30, 2015 was limited to the amount that would be recognized if the year-to-date ordinary loss were the anticipated ordinary loss for the full year. Another item contributing to the benefit is the deduction for percentage depletion in excess of cost depletion related to the Company's coal operations. The total amount of uncertain tax positions at June 30, 2016 and December 31, 2015 was $15,536 and $12,702 , respectively. If these uncertain tax positions were recognized, approximately $2,834 would affect CONSOL Energy's effective tax rate at June 30, 2016 . There would be no effect on the Company's effective tax rate at December 31, 2015 . There was an increase of $2,834 to the liability for unrecognized tax benefits during the six months ended June 30, 2016 . CONSOL Energy recognizes interest accrued related to uncertain tax positions in interest expense. As of June 30, 2016 and December 31, 2015 , the Company reported an accrued interest liability relating to uncertain tax positions of $180 and $53 , respectively, in Other Current Liabilities on the Consolidated Balance Sheet. The accrued interest liability includes $127 of accrued interest expense that is reflected in the Company's Consolidated Statements of Income for the six months ended June 30, 2016 . CONSOL Energy recognizes penalties accrued related to uncertain tax positions in its income tax expense. As of June 30, 2016 and December 31, 2015 , CONSOL Energy had no accrued liabilities for tax penalties related to uncertain tax positions. CONSOL Energy and its subsidiaries file federal income tax returns with the United States and returns within various states and Canadian jurisdictions. With few exceptions, the Company is no longer subject to United States federal, state, local, or non-U.S. income tax examinations by tax authorities for the years before 2010. The Company expects the Internal Revenue Service to conclude its audit of tax years 2010 through 2013 in the third quarter of 2016.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2016
Inventory Disclosure [Abstract]
Inventories	INVENTORIES: Inventory components consist of the following: June 30, December 31, Coal $ 2,975 $ 4,660 Supplies 57,843 62,132 Total Inventories $ 60,818 $ 66,792 Inventories are stated at the lower of cost or net realizable value. The cost of coal inventories is determined by the first-in, first-out (FIFO) method. Coal inventory costs include labor, supplies, equipment costs, operating overhead, depreciation, depletion and amortization, and other related costs. The cost of supplies inventory is determined by the average cost method and includes operating and maintenance supplies to be used in our natural gas and coal operations.

Accounts Receivable Securitizat

Accounts Receivable Securitization	6 Months Ended
	Jun. 30, 2016
ACCOUNTS RECEIVABLE SECURITIZATION: [Abstract]
Accounts Receivable Securitization	ACCOUNTS RECEIVABLE SECURITIZATION: CONSOL Energy and certain of its U.S. subsidiaries were party to a trade accounts receivable facility with financial institutions for the sale on a continuous basis of eligible trade accounts receivable. This facility was terminated on July 7, 2015. CNX Funding Corporation, a wholly owned, special purpose, bankruptcy-remote subsidiary, bought and sold eligible trade receivables generated by certain subsidiaries of CONSOL Energy. Under the receivables facility, CONSOL Energy and certain subsidiaries, irrevocably and without recourse, sold all of their eligible trade accounts receivable to CNX Funding Corporation, who in turn sold these receivables to financial institutions and their affiliates, while maintaining a subordinated interest in a portion of the pool of trade receivables. This retained interest, which was included in Accounts and Notes Receivable-Trade in the Consolidated Balance Sheets, was recorded at fair value. Due to a short average collection cycle for such receivables, CONSOL Energy's collection experience history and the composition of the designated pool of trade accounts receivable that were part of this program, the fair value of its retained interest approximated the total amount of the designated pool of accounts receivable. CONSOL Energy serviced the sold trade receivables for the financial institutions for a fee based upon market rates for similar services. In accordance with the Transfers and Servicing Topic of the Financial Accounting Standards Board (FASB) Accounting Standards Codification, CONSOL Energy recorded transactions under the securitization facility as secured borrowings on the Consolidated Balance Sheets. The pledge of collateral was reported as Accounts Receivable - Securitized and the borrowings were classified as debt in Borrowings under Securitization Facility.

Property, Plant and Equipment

Property, Plant and Equipment	6 Months Ended
	Jun. 30, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	PROPERTY, PLANT AND EQUIPMENT: June 30, December 31, E&P Property, Plant and Equipment Intangible drilling cost $ 3,491,437 $ 3,452,989 Proved gas properties 1,928,917 1,922,602 Unproved gas properties 1,422,991 1,421,083 Gas gathering equipment 1,128,278 1,147,173 Gas wells and related equipment 819,408 785,744 Other gas assets 127,645 125,691 Gas advance royalties 15,278 19,745 Total E&P Property, Plant and Equipment $ 8,933,954 $ 8,875,027 Less: Accumulated Depreciation, Depletion and Amortization 2,902,470 2,695,674 Total E&P Property, Plant and Equipment - Net $ 6,031,484 $ 6,179,353 Coal and Other Property, Plant and Equipment - Continuing Operations: Coal and other plant and equipment $ 2,856,928 $ 2,853,436 Coal properties and surface lands 805,011 769,537 Airshafts 371,064 361,872 Mine development 344,138 344,298 Coal advance mining royalties 330,738 328,715 Leased coal lands 224,304 262,022 Total Coal and Other Property, Plant and Equipment $ 4,932,183 $ 4,919,880 Less: Accumulated Depreciation, Depletion and Amortization 2,457,576 2,366,527 Total Coal and Other Property, Plant and Equipment - Net $ 2,474,607 $ 2,553,353 Total Company Property, Plant and Equipment $ 13,866,137 $ 13,794,907 Less - Total Company Accumulated Depreciation, Depletion and Amortization 5,360,046 5,062,201 Total Property, Plant and Equipment of Continuing Operations - Net $ 8,506,091 $ 8,732,706 Impairment of Proved Properties CONSOL Energy performs a quantitative annual impairment test, during the fourth quarter of each year, over proved properties using the published NYMEX forward prices, timing, methods and other assumptions consistent with historical periods. During interim periods, management updates these annual tests whenever events or changes in circumstances indicate that a property’s carrying amount may not be recoverable. Throughout the first six months of 2015, spot prices and forward curves for natural gas continued to decline from December 31, 2014 prices, which together with other macro-economic factors in the exploration and production industry were deemed indicators of impairment for all of the Company's natural gas assets. Impairment tests require that the Company first compare future undiscounted cash flows by asset group to their respective carrying values. If the carrying amount exceeds the estimated undiscounted future cash flows, a reduction of the carrying amount of the natural gas properties to their estimated fair values is required, which is determined based on discounted cash flow techniques using a market-specific weighted average cost of capital. During the quarter ended June 30, 2015, certain of the Company’s producing gas properties, primarily shallow oil and gas assets, failed the undiscounted cash flow portion of the test. After performing the discounted cash flow portion of the test, CONSOL Energy recorded an impairment of $ 824,742 in the Impairment of Exploration and Production Properties in the Consolidated Statement of Income. Valuation of the impaired assets is a Level 3 measurement as it incorporates significant unobservable inputs, such as future production levels and operating costs, within the discounted cash flow analysis. The impairment related to approximately 95% of the Company’s shallow oil and gas assets in West Virginia and Pennsylvania. No such impairments were recorded during the three or six months ended June 30, 2016. Impairment of Unproved Properties CONSOL Energy evaluates capitalized costs of unproved gas properties for recoverability on a prospective basis. Indicators of potential impairment include potential shifts in business strategy, overall economic factors and historical experience. If it is determined that the properties will not yield proven reserves, the related costs are expensed in the period the determination is made. For the quarter ended June 30, 2015 , unproved property impairments relating to the determination that the properties will not yield proved reserves were $ 4,163 and are included in the Impairment of Exploration and Production Properties in the Consolidated Statement of Income. Valuation of the impaired assets is a Level 3 measurement as it incorporates significant unobservable inputs, such as future production levels and operating costs, within the discounted cash flow analysis. This impairment primarily related to the court ruling in June 2015 in the state of New York that officially bans hydraulic fracturing. No such impairments were recorded during the three or six months ended June 30, 2016. Industry Participation Agreements CONSOL Energy has two significant industry participation agreements (referred to as "joint ventures" or "JVs") that provided drilling and completion carries for the Company's retained interests. CNX Gas Company is party to a joint development agreement with Hess Ohio Developments, LLC (Hess) with respect to approximately 155 thousand net Utica Shale acres in Ohio in which each party has a 50% undivided interest. Under the agreement, as amended, Hess is obligated to pay a total of approximately $ 335,000 in the form of a 50% drilling carry of certain CONSOL Energy working interest obligations as the acreage is developed. As of June 30, 2016 , Hess’ remaining carry obligation is $ 6,616 . CNX Gas Company is party to a joint development agreement with Noble Energy, Inc. (Noble) with respect to approximately 700 thousand net Marcellus Shale natural gas and oil acres in West Virginia and Pennsylvania, in which each party owns a 50% undivided interest. Under the agreement, as amended, Noble Energy is obligated to pay a total of approximately $1,846,000 in the form of a one-third drilling carry of certain of CONSOL Energy’s working interest obligations as the property is developed, subject to certain limitations. These limitations include the suspension of the carry if average Henry Hub natural gas prices are below $4.00 per million British thermal units (MMbtu) for three consecutive months. The carry was in effect from March 1, 2014, until November 1, 2014 at which time natural gas prices had fallen below $4.00/MMbtu for three consecutive months. The carry remains suspended. Limitations also include a $400,000 annual maximum on Noble Energy's carried cost obligation. As of June 30, 2016 , Noble Energy’s remaining carry obligation is $1,624,448 .

Short-Term Notes Payable

Short-Term Notes Payable	6 Months Ended
	Jun. 30, 2016
Short-term Debt, Other Disclosures [Abstract]
Short-Term Notes Payable:	SHORT-TERM NOTES PAYABLE: CONSOL Energy's current senior secured credit agreement expires on June 18, 2019. The credit facility allows for up to $ 2,000,000 of borrowings, which includes a $ 750,000 letters of credit sub-limit. CONSOL Energy can request an additional $ 500,000 increase in the aggregate borrowing limit amount. The current facility is secured by substantially all of the assets of CONSOL Energy and certain of its subsidiaries. Fees and interest rate spreads are based on the percentage of facility utilization, measured quarterly. Availability under the facility is limited to a borrowing base, which is determined by the lenders syndication agent and approved by the required number of lenders in good faith by calculating a value of CONSOL Energy's proved natural gas reserves. The current facility contains a number of affirmative and negative covenants that limit the Company's ability to dispose of assets, make investments, purchase or redeem CONSOL Energy common stock, pay dividends, merge with another corporation and amend, modify or restate the senior unsecured notes. In April 2016, the facility was amended to require that: (i) the Company must prepay outstanding loans under the revolving credit facility to the extent that cash on hand exceeds $150 million for two consecutive business days; (ii) mortgage 85% of its proved reserves and 80% of its proved developed producing reserves, in each case, which are included in the borrowing base; (iii) maintain applicable deposit, securities and commodities accounts with the lenders or affiliates thereof; and (iv) enter into control agreements with respect to such applicable accounts. In addition, the Company pledged the equity interest it holds in CONE Gathering, LLC, and CONE Midstream Partners, LP as collateral to secure loans under the credit agreement. The facility also requires that CONSOL Energy maintain a minimum interest coverage ratio of 2.50 to 1.00, which is calculated as the ratio of Adjusted EBITDA to cash interest expense of CONSOL Energy and certain of its subsidiaries, measured quarterly. CONSOL Energy must also maintain a minimum current ratio of no less than 1.00 to 1.00, which is calculated as the ratio of current assets, plus revolver availability, to current liabilities, excluding borrowings under the revolver, measured quarterly. At June 30, 2016 , the interest coverage ratio was 4.79 to 1.00 and the current ratio was 2.75 to 1.00. Further, the credit facility allows unlimited investments in joint ventures for the development and operation of natural gas gathering systems and permits CONSOL Energy to separate its E&P and coal businesses if the leverage ratio (which is, essentially, the ratio of debt to EBITDA) of the E&P business immediately after the separation would not be greater than 2.75 to 1.00. The calculation of all of the ratios exclude CNX Coal Resources LP ("CNXC"). At June 30, 2016 , the $2,000,000 facility had $ 466,000 of borrowings outstanding and $ 309,011 of letters of credit outstanding, leaving $ 1,224,989 of unused capacity. At December 31, 2015 , the $2,000,000 facility had $952,000 of borrowings outstanding and $ 258,177 of letters of credit outstanding, leaving $ 789,823 of unused capacity.

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2016
Long-term Debt, Other Disclosures [Abstract]
Long-term Debt	LONG-TERM DEBT: June 30, December 31, Debt: Senior Notes due April 2022 at 5.875% (Principal of $1,850,000 plus Unamortized Premium of $5,175 and $5,617, respectively) $ 1,855,175 $ 1,855,617 Senior Notes due April 2023 at 8.00% (Principal of $500,000 less Unamortized Discount of $6,109 and $6,561, respectively) 493,891 493,439 Revolving Credit Facility - CNX Coal Resources LP 198,000 185,000 MEDCO Revenue Bonds in Series due September 2025 at 5.75% 102,865 102,865 Senior Notes due April 2020 at 8.25%, Issued at Par Value 74,470 74,470 Senior Notes due March 2021 at 6.375%, Issued at Par Value 20,611 20,611 Advance Royalty Commitments (16.35% Weighted Average Interest Rate) 3,482 3,964 Other Long-Term Note Maturing in 2018 (Principal of $2,504 and $3,096 less Unamortized Discount of $215 and $327, respectively) 2,289 2,769 Less: Unamortized Debt Issuance Costs 30,357 33,017 2,720,426 2,705,718 Net Amounts Due in One Year and Current Unamortized Debt Issuance Costs* (2,578 ) (2,602 ) Long-Term Debt $ 2,723,004 $ 2,708,320 * Represents $1,844 and $1,820 due in one year, less $4,422 of unamortized debt issuance costs at June 30, 2016 and December 31, 2015 , respectively. Excludes current portion of Capital Lease Obligations of $6,946 and $ 7,590 at June 30, 2016 and December 31, 2015 , respectively.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENT LIABILITIES: CONSOL Energy and its subsidiaries are subject to various lawsuits and claims with respect to such matters as personal injury, wrongful death, damage to property, exposure to hazardous substances, governmental regulations including environmental remediation, employment and contract disputes and other claims and actions arising out of the normal course of business. CONSOL Energy accrues the estimated loss for these lawsuits and claims when the loss is probable and can be estimated. The Company's current estimated accruals related to these pending claims, individually and in the aggregate, are immaterial to the financial position, results of operations or cash flows of CONSOL Energy. It is possible that the aggregate loss in the future with respect to these lawsuits and claims could ultimately be material to the financial position, results of operations or cash flows of CONSOL Energy; however, such amounts cannot be reasonably estimated. The amount claimed against CONSOL Energy is disclosed below when an amount is expressly stated in the lawsuit or claim, which is not often the case. The maximum aggregate amount claimed in those lawsuits and claims, regardless of probability, where a claim is expressly stated or can be estimated, exceeds the aggregate amounts accrued for all lawsuits and claims by approximately $613,344 . The following lawsuits and claims include those for which a loss is probable and an accrual has been recognized: Hale Litigation: This class action lawsuit was filed on September 23, 2010 in the U.S. District Court in Abingdon, Virginia. The putative class consists of forced-pooled unleased gas owners whose ownership of the coalbed methane (CBM) gas was declared to be in conflict with rights of others. The lawsuit seeks a judicial declaration of ownership of the CBM and damages based on allegations CNX Gas Company failed to either pay royalties due to conflicting claimants or deemed lessors or paid them less than required because of the alleged practice of improper below market sales and/or taking alleged improper post-production deductions. On September 30, 2013, the District Judge entered an Order certifying the class, and CNX Gas Company appealed the Order to the U.S. Fourth Circuit Court of Appeals. On August 19, 2014, the Fourth Circuit agreed with CNX Gas Company, reversed the Order certifying the class and remanded the case to the trial court for further proceedings consistent with the decision. On April 23, 2015, Plaintiffs filed a Renewed Motion for Class Certification, and on June 23, 2015 CNX Gas Company filed its Opposition to same. The Court held a hearing on the Motion on September 18, 2015 and has not yet ruled. CONSOL Energy continues to believe this action cannot properly proceed as a class action in any form, believes the case has meritorious defenses, and intends to defend it vigorously. The Company has established an accrual to cover its estimated liability for this case. This accrual is immaterial to the overall financial position of CONSOL Energy and is included in Other Accrued Liabilities on the Consolidated Balance Sheets. Addison Litigation: This class action lawsuit was filed on April 28, 2010 in the U.S. District Court in Abingdon, Virginia. The putative class consists of gas lessors whose gas ownership is in conflict. The lawsuit seeks a judicial declaration of ownership of the CBM and damages based on the allegations that CNX Gas Company failed to either pay royalties due to these conflicting claimant lessors or paid them less than required because of the alleged practice of improper below market sales and/or taking alleged improper post-production deductions. On September 30, 2013, the District Judge entered an Order certifying the class, and CNX Gas Company appealed the Order to the U.S. Court of Appeals for the Fourth Circuit. On August 19, 2014, the Fourth Circuit agreed with CNX Gas Company, reversed the Order certifying the class and remanded the case to the trial court for further proceedings consistent with the decision. On April 23, 2015, Plaintiffs filed a Renewed Motion for Class Certification, and on June 23, 2015 CNX Gas Company filed its Opposition to same. The Court held a hearing on the Motion on September 18, 2015 and has not yet ruled. CONSOL Energy continues to believe this action cannot properly proceed as a class action in any form, believes the case has meritorious defenses, and intends to defend it vigorously. The Company has established an accrual to cover its estimated liability for this case. This accrual is immaterial to the overall financial position of CONSOL Energy and is included in Other Accrued Liabilities on the Consolidated Balance Sheets. Clean Water Act - Bailey Mine: The Company received from the U.S. EPA on April 8, 2011, a request for information relating to National Pollutant Discharge Elimination System (NPDES) Permit compliance at the Company’s Bailey and Enlow Fork Mines. In response, CONSOL Pennsylvania Coal Company submitted water discharge monitoring and other data to the EPA. In early 2013, the case was referred to the U.S. Department of Justice (DOJ), and the Pennsylvania Department of Environmental Protection (PA DEP) also became involved. On December 18, 2014, the DOJ provided the Company a proposed Consent Decree to resolve certain Clean Water Act and Clean Streams Law claims against CONSOL Energy, Inc. and CONSOL Pennsylvania Coal Company with respect to the Bailey Mine Complex. After negotiations, the parties reached an agreement in principle on the terms of a Consent Decree naming CONSOL Energy Inc., Consol Pennsylvania Coal Company LLC and CNX Coal Resources LP as defendants. The draft Consent Decree is awaiting senior-level approval at DOJ, U.S. EPA and PA DEP. Subject to receipt of that approval, a proposed Consent Decree executed by all of the parties would be filed with the United States District Court for the Western District of Pennsylvania and noticed for public comment. Subject to the resolution of any public comments, the governments would file a joint motion seeking entry of the proposed Consent Decree by the court. The Company has established an accrual to cover its liability in this matter. This accrual is immaterial to the overall financial position of CONSOL Energy and is included in Other Accrued Liabilities on the Consolidated Balance Sheets. The following royalty and land rights lawsuits and claims include those for which a loss is reasonably possible, but not probable, and accordingly, an accrual may not have been recognized. These claims are influenced by many factors which prevent the estimation of a range of potential loss. These factors include, but are not limited to, generalized allegations of unspecified damages (such as improper deductions), discovery having not commenced or not having been completed, unavailability of expert reports on damages and non-monetary issues being tried. For example, in instances where a gas lease termination is sought, damages would depend on speculation as to if and when the gas production would otherwise have occurred, how many wells would have been drilled on the lease premises, what their production would be, what the cost of production would be, and what the price of gas would be during the production period. An estimate is calculated, if applicable, when sufficient information becomes available. Virginia Mine Void Litigation: The Company is currently defending three lawsuits naming Consolidation Coal Company (CCC), Island Creek Coal Company (ICCC), CNX Gas Company, and/or CONSOL Energy. The lawsuits were filed in the U.S. District Court for the Western District of Virginia. On October 26, 2015, the trial court granted summary judgment in favor of the defendants in two of the actions upon its finding that plaintiffs' claims are barred by the applicable statutes of limitation. Plaintiffs have appealed both cases to the U.S. Court of Appeals for the Fourth Circuit. The third case remains pending in the trial court. On January 26, 2016, six mine void lawsuits that have twice before been filed and voluntarily dismissed, were refiled for a third time in state court but have not been served. The Complaints seek damages and injunctive relief in connection with the transfer of water from mining activities at Buchanan Mine into void spaces in inactive ICCC mines adjacent to the Buchanan operations, voids ostensibly underlying plaintiffs’ properties. While some of the plaintiffs have an ownership interest in the coal, others have some interest in one or more of the fee, surface, oil/gas or other mineral estates. The suits allege the water storage precludes access to and has damaged coal, impeded coalbed methane gas production and was made without compensation to the property owners. Plaintiffs seek recovery in tort, contract and trespass assumpsit (quasi-contract). The suits each seek damages between $50,000 and in excess of $100,000 plus punitive damages. The Company intends to vigorously defend these suits. At June 30, 2016 , CONSOL Energy has provided the following financial guarantees, unconditional purchase obligations and letters of credit to certain third parties, as described by major category in the following table. These amounts represent the maximum potential of total future payments that the Company could be required to make under these instruments. These amounts have not been reduced for potential recoveries under recourse or collateralization provisions. Generally, recoveries under reclamation bonds would be limited to the extent of the work performed at the time of the default. No amounts related to these financial guarantees and letters of credit are recorded as liabilities in the financial statements. CONSOL Energy management believes that these guarantees will expire without being funded, and therefore the commitments will not have a material adverse effect on financial condition. Amount of Commitment Expiration Per Period Total Amounts Committed Less Than 1 Year 1-3 Years 3-5 Years Beyond 5 Years Letters of Credit: Employee-Related $ 67,523 $ 39,934 $ 27,589 $ — $ — Environmental 998 998 — — — Other 240,490 204,593 35,897 — — Total Letters of Credit 309,011 245,525 63,486 — — Surety Bonds: Employee-Related 115,352 115,352 — — — Environmental 551,830 542,859 8,971 — — Other 26,167 23,952 2,213 2 — Total Surety Bonds 693,349 682,163 11,184 2 — Guarantees: Coal 16,700 16,700 — — — Other 80,556 42,183 18,990 14,397 4,986 Total Guarantees 97,256 58,883 18,990 14,397 4,986 Total Commitments $ 1,099,616 $ 986,571 $ 93,660 $ 14,399 $ 4,986 Included in the above table are commitments and guarantees entered into in conjunction with the sale of Consolidation Coal Company and certain of its subsidiaries, which contain all five of its longwall coal mines in West Virginia, and its river operations to a subsidiary of Murray Energy Corporation (Murray Energy). As part of the sales agreement, CONSOL Energy has guaranteed certain equipment lease obligations and coal sales agreements that were assumed by Murray Energy. In the event that Murray Energy would default on the obligations defined in the agreements, CONSOL Energy would be required to perform under the guarantees. If CONSOL Energy would be required to perform, the stock purchase agreement provides various recourse actions. At June 30, 2016 , and December 31, 2015, the fair value of these guarantees was $1,463 and $1,228 , respectively, and are included in Other Accrued Liabilities on the Consolidated Balance Sheets. The fair value of certain of the guarantees was determined using CONSOL Energy’s risk-adjusted interest rate. Significant increases or decreases in the risk-adjusted interest rates may result in a significantly higher or lower fair value measurement. Coal sales agreement guarantees were valued based on an evaluation of coal market pricing compared to contracted sales price and includes an adjustment for nonperformance risk. No other amounts related to financial guarantees and letters of credit are recorded as liabilities in the financial statements. Significant judgment is required in determining the fair value of these guarantees. The guarantees of the leases and sales agreements are classified within Level 3 of the fair value hierarchy. CONSOL Energy regularly evaluates the likelihood of default for all guarantees based on an expected loss analysis and records the fair value, if any, of its guarantees as an obligation in the consolidated financial statements. CONSOL Energy and CNX Gas Company enter into long-term unconditional purchase obligations to procure major equipment purchases, natural gas firm transportation, gas drilling services and other operating goods and services. These purchase obligations are not recorded on the Consolidated Balance Sheets. As of June 30, 2016 , the purchase obligations for each of the next five years and beyond were as follows: Obligations Due Amount Less than 1 year $ 193,389 1 - 3 years 278,664 3 - 5 years 224,537 More than 5 years 608,816 Total Purchase Obligations $ 1,305,406

Derivative Instruments

Derivative Instruments	6 Months Ended
	Jun. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments:	DERIVATIVE INSTRUMENTS: CONSOL Energy enters into financial derivative instruments to manage its exposure to commodity price volatility. CONSOL Energy de-designated all of its cash flow hedges on December 31, 2014 and accounts for all existing and future gas and NGL commodity hedges on a mark-to-market basis with changes in fair value recorded in current period earnings. In connection with this de-designation, CONSOL Energy froze the balances recorded in Accumulated Other Comprehensive Income at December 31, 2014 and will reclassify balances to earnings as the underlying physical transactions occur, unless it is no longer probable that the physical transaction will occur at which time the related gains deferred in Other Comprehensive Income (OCI) will be immediately recorded in earnings. CONSOL Energy is exposed to credit risk in the event of non-performance by counterparties. The creditworthiness of counterparties is subject to continuing review. The Company has not experienced any issues of non-performance by derivative counterparties. None of the Company's counterparty master agreements currently require CONSOL Energy to post collateral for any of its positions. However, as stated in the counterparty master agreements, if CONSOL Energy's obligations with one of its counterparties cease to be secured on the same basis as similar obligations with the other lenders under the credit facility, CONSOL Energy would have to post collateral for instruments in a liability position in excess of defined thresholds. All of the Company's derivative instruments are subject to master netting arrangements with our counterparties. CONSOL Energy recognizes all financial derivative instruments as either assets or liabilities at fair value on the Consolidated Balance Sheets on a gross basis. Each of CONSOL Energy's counterparty master agreements allows, in the event of default, the ability to elect early termination of outstanding contracts. If early termination is elected, CONSOL Energy and the applicable counterparty would net settle all open hedge positions. CONSOL Energy’s natural gas derivative instruments accounted for a total notional amount of production of 615.3 Bcf at June 30, 2016 and are forecasted to settle through 2020 . At December 31, 2015 , the natural gas derivative instruments accounted for a total notional amount of production of 456.1 Bcf. At June 30, 2016 , the basis only swaps were for notional amounts of 283.8 Bcf and are forecasted to settle through 2020 . At December 31, 2015 , the basis only swaps were for notional amounts of 124.4 Bcf. CONSOL Energy's NGL derivative instruments accounted for a total notional amount of production of 246.6 Mbbls of propane at June 30, 2016 and are forecasted to settle through 2017 . No NGL derivative instruments were outstanding at December 31, 2015 . The gross fair value of CONSOL Energy's derivative instruments at June 30, 2016 and December 31, 2015 were as follows: Asset Derivative Instruments Liability Derivative Instruments June 30, December 31, June 30, December 31, 2016 2015 2016 2015 Commodity Swaps: Prepaid Expense $ 58,057 $ 234,409 Other Accrued Liabilities $ 66,104 $ — Other Assets 13,126 44,539 Other Liabilities 76,458 5,137 Total Asset $ 71,183 $ 278,948 Total Liability $ 142,562 $ 5,137 Basis Only Swaps: Prepaid Expense $ 9,188 $ 5,429 Other Accrued Liabilities $ 12,704 $ 12,206 Other Assets 6,999 1,093 Other Liabilities 7,693 1,569 Total Asset $ 16,187 $ 6,522 Total Liability $ 20,397 $ 13,775 The effect of derivative instruments on CONSOL Energy's Consolidated Statements of Income was as follows: For the Three Months Ended For the Six Months Ended June 30, June 30, 2016 2015 2016 2015 Cash Received (Paid) in Settlement of Commodity Derivative Instruments: Commodity Swaps: Natural Gas $ 91,302 $ 42,097 $ 173,449 $ 72,356 Propane (114 ) — (114 ) — Natural Gas Basis Swaps (10,853 ) 161 (8,669 ) 43 Total Cash Received in Settlement of Commodity Derivative Instruments 80,335 42,258 164,666 72,399 Non-Cash Portion of (Loss) Gain on Commodity Derivative Instruments: Commodity Swaps: Natural Gas (306,376 ) (60,277 ) (344,398 ) (29,173 ) Propane (526 ) — (792 ) — Natural Gas Basis Swaps 9,463 2,434 3,042 807 Reclassified from Accumulated OCI 17,724 32,907 33,162 63,434 Total Non-Cash Portion of (Loss) Gain on Commodity Derivative Instruments (279,715 ) (24,936 ) (308,986 ) 35,068 (Loss) Gain on Commodity Derivative Instruments: Commodity Swaps: Natural Gas (215,074 ) (18,180 ) (170,949 ) 43,183 Propane (640 ) — (906 ) — Natural Gas Basis Swaps (1,390 ) 2,595 (5,627 ) 850 Reclassified from Accumulated OCI 17,724 32,907 33,162 63,434 Total (Loss) Gain on Commodity Derivative Instruments $ (199,380 ) $ 17,322 $ (144,320 ) $ 107,467 Changes in Accumulated OCI, net of tax, attributable to cash flow hedges that were de-designated December 31, 2014 were as follows: For the Three Months Ended For the Six Months Ended June 30, June 30, 2016 2015 2016 2015 Beginning Balance – Accumulated OCI $ 33,656 $ 102,207 $ 43,470 $ 121,521 Gain Reclassified from Accumulated OCI (Net of tax: $6,521, $12,103, $12,145, $23,316) (11,203 ) (20,804 ) (21,017 ) (40,118 ) Ending Balance – Accumulated OCI $ 22,453 $ 81,403 $ 22,453 $ 81,403 CONSOL Energy expects to reclassify an additional $22,453 , net of tax of $12,866 , out of Accumulated Other Comprehensive Income over the remaining period ended December 31, 2016.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	FAIR VALUE OF FINANCIAL INSTRUMENTS: CONSOL Energy determines the fair value of assets and liabilities based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. The fair values are based on assumptions that market participants would use when pricing an asset or liability, including assumptions about risk and the risks inherent in valuation techniques and the inputs to valuations. The fair value hierarchy is based on whether the inputs to valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources (including NYMEX forward curves, LIBOR-based discount rates and basis forward curves), while unobservable inputs reflect the Company's own assumptions of what market participants would use. The fair value hierarchy includes three levels of inputs that may be used to measure fair value as described below: Level One - Quoted prices for identical instruments in active markets. Level Two - The fair value of the assets and liabilities included in Level 2 are based on standard industry income approach models that use significant observable inputs, including NYMEX forward curves, LIBOR-based discount rates and basis forward curves. Level Three - Unobservable inputs significant to the fair value measurement supported by little or no market activity. The significant unobservable inputs used in the fair value measurement of the Company's third party guarantees are the credit risk of the third party and the third party surety bond markets. A significant increase or decrease in these values, in isolation, would have a directionally similar effect resulting in higher or lower fair value measurement of the Company's Level 3 guarantees. In those cases when the inputs used to measure fair value meet the definition of more than one level of the fair value hierarchy, the lowest level input that is significant to the fair value measurement in its totality determines the applicable level in the fair value hierarchy. The financial instruments measured at fair value on a recurring basis are summarized below: Fair Value Measurements at June 30, 2016 Fair Value Measurements at December 31, 2015 Description (Level 1) (Level 2) (Level 3) (Level 1) (Level 2) (Level 3) Gas Derivatives $ — $ (75,589 ) $ — $ — $ 266,558 $ — Murray Energy Guarantees $ — $ — $ (1,463 ) $ — $ — $ (1,228 ) The following methods and assumptions were used to estimate the fair value for which the fair value option was not elected: Cash and cash equivalents: The carrying amount reported in the Consolidated Balance Sheets for cash and cash equivalents approximates its fair value due to the short-term maturity of these instruments. Short-term notes payable : The carrying amount reported in the Consolidated Balance Sheets for short-term notes payable approximates its fair value due to the short-term maturity of these instruments. Long-term debt: The fair value of long-term debt is measured using unadjusted quoted market prices or estimated using discounted cash flow analyses. The discounted cash flow analyses are based on current market rates for instruments with similar cash flows. The carrying amounts and fair values of financial instruments for which the fair value option was not elected are as follows: June 30, 2016 December 31, 2015 Carrying Amount Fair Value Carrying Amount Fair Value Cash and Cash Equivalents $ 97,626 $ 97,626 $ 72,574 $ 72,574 Short-Term Notes Payable $ (466,000 ) $ (466,000 ) $ (952,000 ) $ (952,000 ) Long-Term Debt $ (2,750,784 ) $ (2,374,724 ) $ (2,738,735 ) $ (1,808,936 )

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2016
Segment Reporting Information [Line Items]
Segment Reporting Disclosure [Text Block]	SEGMENT INFORMATION: CONSOL Energy consists of two principal business divisions: Exploration and Production (E&P) and Coal. The principal activity of the E&P division, which includes four reportable segments, is to produce pipeline quality natural gas for sale primarily to gas wholesalers. The E&P division's reportable segments are Marcellus, Utica, Coalbed Methane, and Other Gas. The Other Gas segment is primarily related to shallow oil and gas production and the Chattanooga Shale in Tennessee. It also includes the Company's purchased gas activities, selling, general and administrative activities, as well as various other activities assigned to the E&P division but not allocated to each individual well type. The principal activities of the Coal division are mining, preparation and marketing of thermal coal, sold primarily to power generators. The Coal division's reportable segments are Pennsylvania (PA) Operations and Other Coal. For the six months ended June 30, 2016 , the PA Operations aggregated segment includes the following mines: Bailey Mine, Enlow Fork Mine, Harvey Mine and the corresponding preparation plant facilities. For the six months ended June 30, 2016 , the Other Coal segment includes coal terminal operations, closed and idle mine activities, the Company's purchased coal activities and selling, general and administrative activities, as well as various other activities assigned to the Coal division. CONSOL Energy’s All Other division includes expenses from various other corporate activities that are not allocated to the E&P or Coal divisions. Prior to classifying the Miller Creek Complex as held for sale in discontinued operations on June 30, 2016, the Other Coal Segment contained thermal coal sales geographically separated from PA Operations. See Note 2 - Discontinued Operations for more information. Prior to the sale of the Buchanan Mine on March 31, 2016, CONSOL Energy had a third reportable segment in the Coal division, Virginia (VA) Operations. See Note 2 - Discontinued Operations for more information relating to the sale. In the preparation of the following information, intersegment sales have been recorded at amounts approximating market. Operating profit for each segment is based on sales less identifiable operating and non-operating expenses. Assets are reflected at the division level for E&P and are not allocated between each individual E&P segment. These assets are not allocated to each individual segment due to the diverse asset base controlled by CONSOL Energy, whereby each individual asset may service more than one segment within the division. An allocation of such asset base would not be meaningful or representative on a segment by segment basis.

Related Party Transaction

Related Party Transaction	6 Months Ended
	Jun. 30, 2016
NOTE 16- RELATED PARTY TRANSACTIONS [Abstract]
Related Party Transactions Disclosure [Text Block]	RELATED PARTY TRANSACTIONS: CONE Gathering LLC (CONE) and CONE Midstream Partners LP (the Partnership) During the six months ended June 30, 2016 , additional capital contributions of $ 94 were made to CONE and additional capital contributions of $ 2,051 were made to the Partnership. The capital contributions were offset by $ 9,192 of distributions from the Partnership. During the six months ended June 30, 2015 , additional capital contributions of $ 8,387 were made to CONE, and additional capital contributions of $42,750 were made to the Partnership, offset in part, by $8,162 of distributions from the Partnership. Following the Partnership IPO in September 2014, CONE has a 2% general partner interest in the Partnership, while each sponsor has a 32.1% limited partner interest. CNX Gas Company accounts for its portion of the earnings in the Partnership under the equity method of accounting. At June 30, 2016 , CNX Gas Company and Noble Energy each continue to own a 50% interest in the assets of CONE that were not contributed to the Partnership. Equity in earnings of affiliates during the three months ended June 30, 2016 and 2015 related to CONE was $753 and $4,538 , respectively. Equity in earnings of affiliates during the three months ended June 30, 2016 and 2015 related to the Partnership was $7,452 and $4,843 , respectively. For the six months ended June 30, 2016 and 2015 , equity in earnings of affiliates related to CONE was $7,146 and $7,676 , respectively. For the six months ended June 30, 2016 and 2015 , equity in earnings affiliates related to the Partnership was $15,410 and $9,361 , respectively. During the six months ended June 30, 2016 and 2015 , CONE and the Partnership provided gathering services to CNX Gas Company in the ordinary course of business. Gathering services provided were $29,976 and $24,926 for the three months ended June 30, 2016 and 2015 , respectively. For the six months ended June 30, 2016 and 2015 , gathering services were $61,993 and $47,286 , respectively. These costs were included in Transportation, Gathering and Compression Costs on CONSOL Energy’s accompanying Consolidated Statements of Income. At June 30, 2016 and December 31, 2015 , CONSOL Energy had a net payable of $7,542 and $12,216 respectively, due to both the Partnership and CONE primarily for accrued but unpaid gathering services. The net payable for both periods is included in Accounts Payable on CONSOL Energy’s accompanying Consolidated Balance Sheets. During the three months ended June 30, 2016 and 2015 , CONSOL Energy purchased no supply inventory from the Partnership. During the six months ended June 30, 2016 and 2015 , CONSOL Energy purchased no supply inventory and $2,239 of supply inventory from the Partnership, respectively. CNX Coal Resources LP On July 7, 2015, CNXC closed its initial public offering of 5,000,000 common units representing limited partnership interests at a price to the public of $15.00 per unit. Additionally, Greenlight Capital entered into a common unit purchase agreement with CNXC pursuant to which Greenlight Capital agreed to purchase, and CNXC agreed to sell, 5,000,000 common units at a price per unit equal to $15.00 , which equates to $75,000 in net proceeds. CNXC's general partner is CNX Coal Resources GP, a wholly owned subsidiary of CONSOL Energy. The underwriters of the IPO filing exercised an over-allotment option of 561,067 common units to the public at $15.00 per unit. In connection with the IPO offering, CNXC entered into a $400,000 senior secured revolving credit facility with certain lenders and PNC Bank, National Association (PNC), as administrative agent. Obligations under the revolving credit facility are guaranteed by CNXC's subsidiaries (the "guarantor subsidiaries") and are secured by substantially all of CNXC's and CNXC's subsidiaries' assets pursuant to a security agreement and various mortgages. Under the new revolving credit facility, CNXC made an initial draw of $200,000 , and after origination fees of $3,000 , the net proceeds were $197,000 . The total net proceeds related to these transactions that were distributed to CONSOL Energy were $342,711 . Charges for services from CONSOL Energy include the following: For the Three Months Ended For the Six Months Ended June 30, June 30, 2016 2015 2016 2015 Operating and Other Costs $ 1,016 $ 1,155 $ 2,029 $ 1,795 Selling, General and Administrative Expenses 962 1,897 1,896 3,525 Total Services from CONSOL Energy $ 1,978 $ 3,052 $ 3,925 $ 5,320 At June 30, 2016 and December 31, 2015, CNXC had a net payable to CONSOL Energy in the amount of $981 and $3,452 , respectively. This payable includes reimbursements for business expenses, executive fees, stock-based compensation and other items under the omnibus agreement.

Stock Repurchase (Notes)

Stock Repurchase (Notes)	6 Months Ended
	Jun. 30, 2016
Stock Repurchase [Abstract]
Treasury Stock [Text Block]	In December 2014, CONSOL Energy's Board of Directors approved a stock repurchase program under which CONSOL Energy may purchase from time to time up to $250,000 of its common stock over the next two years. Under the terms of the program, CONSOL Energy may make repurchases in the open market, in privately negotiated transactions, accelerated repurchase programs or in structured share repurchase programs. Any repurchases of common stock will be funded from available cash on hand or short-term borrowings. The program does not obligate CONSOL Energy to acquire any particular amount of common stock, and it may be modified or suspended at any time at the Company's discretion. The program will be conducted in compliance with applicable legal requirements and within the limits imposed by any credit agreement, receivables purchase agreement or indenture and shall be subject to market conditions and other factors. During the three and six months ended June 30, 2016 , and during the three months ended June 30, 2015 , no shares were repurchased. During the six months ended June 30, 2015 , 2,213,100 shares were repurchased and retired at an average price of $ 32.37 per share.

Recent Accounting Pronouncement

Recent Accounting Pronouncements (Notes)	6 Months Ended
	Jun. 30, 2016
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	.

Subsequent Event (Notes)

Subsequent Event (Notes)	6 Months Ended
	Jun. 30, 2016
Subsequent Event [Line Items]
Subsequent Events [Text Block]	SUBSEQUENT EVENTS: On July 19, 2016 , certain subsidiaries of CONSOL Energy entered into two related purchase agreements with Southeastern Land, LLC, related to the sale of the Miller Creek Mining Complex and Fola Mining Complex Central Appalachia mining operations. The Miller Creek Complex, located in West Virginia, has an active surface mining operation, which produced 2.1 million tons in 2015, and two underground mines, which are idle. Fola is a closed surface mining operation in West Virginia, which CONSOL Energy acquired as part of the AMVEST acquisition in 2007. The Miller Creek and Fola Mining Complexes each have approximately 114,000 million tons of owned and leased coal reserves and they have a total of $102,803 of mine closing and reclamation liabilities on CONSOL Energy’s Consolidated Balance Sheets. Closing of the transaction is subject to a number of conditions, but the transaction is expected to close in the third quarter. In the transaction, the buyer will acquire the Miller Creek and Fola assets and will assume the Miller Creek and Fola mine closing and reclamation liabilities; in order to equalize the value exchange, CONSOL Energy will pay the buyer approximately $27,000 cash at the closing (a portion of which will be held in escrow for purposes of obtaining the surety bonds required for the permits to transfer) and an additional $17,200 in installments over the next four years. These payments will result in an additional loss of $44,200 being recorded upon the closing of the transaction. Also on July 19, 2016 , the Board of Directors of CNX Coal Resources GP LLC, the general partner of CNX Coal Resources LP, declared a cash distribution to the Partnership's common unitholders for the second quarter of 2016 of $0.5125 and the general partner interest for the second quarter of 2016. The cash distribution will be paid on August 15, 2016 to the common unitholders of record at the close of business on August 8, 2016 . The general partner elected not to pay a distribution to holders of subordinated units, which are held in their entirety by CONSOL Energy, in respect of the period ended June 30, 2016 .

Basis of Presentation (Tables)

Basis of Presentation (Tables)	6 Months Ended
	Jun. 30, 2016
BASIS OF PRESENTATION: [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	he computations for basic and dilutive earnings per share are as follows: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Loss from Continuing Operations $ (233,010 ) $ (577,223 ) $ (275,721 ) $ (524,027 ) Loss from Discontinued Operations (235,639 ) (26,078 ) (289,391 ) (244 ) Net Loss $ (468,649 ) $ (603,301 ) $ (565,112 ) $ (524,271 ) Net Income Attributable to Noncontrolling Interest 1,179 — 2,293 — Net Loss Attributable to CONSOL Energy Shareholders $ (469,828 ) $ (603,301 ) $ (567,405 ) $ (524,271 ) Weighted Average Shares of Common Stock Outstanding: Basic 229,409,325 228,928,803 229,334,277 229,329,382 Effect of Stock-Based Compensation Awards — — — — Dilutive 229,409,325 228,928,803 229,334,277 229,329,382 Loss per Share: Basic (Continuing Operations) $ (1.02 ) $ (2.52 ) $ (1.21 ) $ (2.29 ) Basic (Discontinued Operations) (1.03 ) (0.12 ) (1.26 ) — Total Basic $ (2.05 ) $ (2.64 ) $ (2.47 ) $ (2.29 ) Dilutive (Continuing Operations) $ (1.02 ) $ (2.52 ) $ (1.21 ) $ (2.29 ) Dilutive (Discontinued Operations) (1.03 ) (0.12 ) (1.26 ) — Total Dilutive $ (2.05 ) $ (2.64 ) $ (2.47 ) $ (2.29 )
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	The table below sets forth the share-based awards that have been excluded from the computation of the diluted earnings per share because their effect would be anti-dilutive: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Anti-Dilutive Options 6,348,665 3,667,080 6,348,665 3,667,080 Anti-Dilutive Restricted Stock Units 742,868 1,606,672 742,868 1,606,672 Anti-Dilutive Performance Share Units 951,541 — 951,541 — Anti-Dilutive Performance Stock Options 802,804 802,804 802,804 802,804 8,845,878 6,076,556 8,845,878 6,076,556
Schedule of Changes in Accumulated Other Comprehensive Income/(Loss) by Component [Table Text Block]	Changes in Accumulated Other Comprehensive Loss by component, net of tax, were as follows: Gains on Cash Flow Hedges Postretirement Benefits Total Balance at December 31, 2015 $ 43,470 $ (359,068 ) $ (315,598 ) Other Comprehensive Loss before Reclassifications — (9,046 ) (9,046 ) Amounts reclassified from Accumulated Other Comprehensive Loss (21,017 ) 14,607 (6,410 ) Current period Other Comprehensive (Loss) Income (21,017 ) 5,561 (15,456 ) Balance at June 30, 2016 $ 22,453 $ (353,507 ) $ (331,054 )
Schedule of Reclassification of Adjustments to Accumulated Other Comprehensive Income [Table Text Block]	The following table shows the reclassification of adjustments out of Accumulated Other Comprehensive Loss: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Derivative Instruments (Note 14) Natural Gas Price Swaps and Options $ (17,724 ) $ (32,907 ) $ (33,162 ) $ (63,434 ) Tax Expense 6,521 12,103 12,145 23,316 Net of Tax $ (11,203 ) $ (20,804 ) $ (21,017 ) $ (40,118 ) Actuarially Determined Long-Term Liability Adjustments* (Note 5 and Note 6) Amortization of Prior Service Costs $ (148 ) $ (54,495 ) $ (295 ) $ (69,308 ) Recognized Net Actuarial Loss 5,706 24,169 11,217 38,742 Settlement Loss 13,696 — 13,696 — Total 19,254 (30,326 ) 24,618 (30,566 ) Tax (Benefit) Expense (7,178 ) 11,398 (9,196 ) 11,488 Net of Tax $ 12,076 $ (18,928 ) $ 15,422 $ (19,078 )
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]	The table below sets forth the share-based awards that have been exercised or released: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 Options — 287,592 — 363,620 Restricted Stock Units 83,710 37,149 568,390 486,507 Performance Share Units — — — 497,134 83,710 324,741 568,390 1,347,261

Pension and OPEB - Periodic C31

Pension and OPEB - Periodic Cost (Tables)	6 Months Ended
	Jun. 30, 2016
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS NET PERIODIC BENEFIT COSTS: [Abstract]
Components of Net Periodic Costs	Components of net periodic benefit costs are as follows: Pension Benefits Other Post-Employment Benefits For the Three Months Ended June 30, For the Six Months Ended June 30, For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 2016 2015 2016 2015 Service Cost $ 482 $ 2,350 $ 963 $ 4,700 $ — $ — $ — $ — Interest Cost 6,841 8,580 13,683 17,160 6,060 6,889 12,121 13,884 Expected Return on Plan Assets (11,869 ) (12,690 ) (23,738 ) (25,379 ) — — — — Amortization of Prior Service Credits (148 ) (176 ) (295 ) (352 ) — (54,320 ) — (68,956 ) Recognized net Actuarial Loss 2,116 6,940 4,232 13,880 4,792 18,522 9,584 27,448 Settlement Loss 13,696 — 13,696 — — — — — Net Periodic Benefit Cost (Credit) $ 11,118 $ 5,004 $ 8,541 $ 10,009 $ 10,852 $ (28,909 ) $ 21,705 $ (27,624 )

CWP and Workers Comp - Net Pe32

CWP and Workers Comp - Net Periodic Costs (Tables)	6 Months Ended
	Jun. 30, 2016
CWP And Workers Comp Net Periodic Cost [Abstract]
Schedule Of Postemployment Benefits Disclosure [Text Block]	Components of net periodic benefit costs are as follows: CWP Workers' Compensation For the Three Months Ended June 30, For the Six Months Ended June 30, For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 2016 2015 2016 2015 Service Cost $ 1,041 $ 1,623 $ 2,244 $ 3,246 $ 1,904 $ 2,347 $ 3,809 $ 4,695 Interest Cost 1,053 1,279 2,176 2,558 638 799 1,275 1,597 Amortization of Actuarial Gain (1,188 ) (1,394 ) (2,571 ) (2,788 ) (101 ) (8 ) (202 ) (15 ) State Administrative Fees and Insurance Bond Premiums — — — — 968 973 1,699 1,876 Curtailment Gain — — (1,307 ) — — — — — Net Periodic Benefit Cost $ 906 $ 1,508 $ 542 $ 3,016 $ 3,409 $ 4,111 $ 6,581 $ 8,153

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2016
Inventory Disclosure [Abstract]
Inventory components	June 30, December 31, Coal $ 2,975 $ 4,660 Supplies 57,843 62,132 Total Inventories $ 60,818 $ 66,792

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	6 Months Ended
	Jun. 30, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	June 30, December 31, E&P Property, Plant and Equipment Intangible drilling cost $ 3,491,437 $ 3,452,989 Proved gas properties 1,928,917 1,922,602 Unproved gas properties 1,422,991 1,421,083 Gas gathering equipment 1,128,278 1,147,173 Gas wells and related equipment 819,408 785,744 Other gas assets 127,645 125,691 Gas advance royalties 15,278 19,745 Total E&P Property, Plant and Equipment $ 8,933,954 $ 8,875,027 Less: Accumulated Depreciation, Depletion and Amortization 2,902,470 2,695,674 Total E&P Property, Plant and Equipment - Net $ 6,031,484 $ 6,179,353 Coal and Other Property, Plant and Equipment - Continuing Operations: Coal and other plant and equipment $ 2,856,928 $ 2,853,436 Coal properties and surface lands 805,011 769,537 Airshafts 371,064 361,872 Mine development 344,138 344,298 Coal advance mining royalties 330,738 328,715 Leased coal lands 224,304 262,022 Total Coal and Other Property, Plant and Equipment $ 4,932,183 $ 4,919,880 Less: Accumulated Depreciation, Depletion and Amortization 2,457,576 2,366,527 Total Coal and Other Property, Plant and Equipment - Net $ 2,474,607 $ 2,553,353 Total Company Property, Plant and Equipment $ 13,866,137 $ 13,794,907 Less - Total Company Accumulated Depreciation, Depletion and Amortization 5,360,046 5,062,201 Total Property, Plant and Equipment of Continuing Operations - Net $ 8,506,091 $ 8,732,706

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2016
Long-term Debt, Other Disclosures [Abstract]
Schedule of Long-term Debt	June 30, December 31, Debt: Senior Notes due April 2022 at 5.875% (Principal of $1,850,000 plus Unamortized Premium of $5,175 and $5,617, respectively) $ 1,855,175 $ 1,855,617 Senior Notes due April 2023 at 8.00% (Principal of $500,000 less Unamortized Discount of $6,109 and $6,561, respectively) 493,891 493,439 Revolving Credit Facility - CNX Coal Resources LP 198,000 185,000 MEDCO Revenue Bonds in Series due September 2025 at 5.75% 102,865 102,865 Senior Notes due April 2020 at 8.25%, Issued at Par Value 74,470 74,470 Senior Notes due March 2021 at 6.375%, Issued at Par Value 20,611 20,611 Advance Royalty Commitments (16.35% Weighted Average Interest Rate) 3,482 3,964 Other Long-Term Note Maturing in 2018 (Principal of $2,504 and $3,096 less Unamortized Discount of $215 and $327, respectively) 2,289 2,769 Less: Unamortized Debt Issuance Costs 30,357 33,017 2,720,426 2,705,718 Net Amounts Due in One Year and Current Unamortized Debt Issuance Costs* (2,578 ) (2,602 ) Long-Term Debt $ 2,723,004 $ 2,708,320

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2016
Long-term Purchase Commitment [Table Text Block]	At June 30, 2016 , CONSOL Energy has provided the following financial guarantees, unconditional purchase obligations and letters of credit to certain third parties, as described by major category in the following table. These amounts represent the maximum potential of total future payments that the Company could be required to make under these instruments. These amounts have not been reduced for potential recoveries under recourse or collateralization provisions. Generally, recoveries under reclamation bonds would be limited to the extent of the work performed at the time of the default. No amounts related to these financial guarantees and letters of credit are recorded as liabilities in the financial statements. CONSOL Energy management believes that these guarantees will expire without being funded, and therefore the commitments will not have a material adverse effect on financial condition. Amount of Commitment Expiration Per Period Total Amounts Committed Less Than 1 Year 1-3 Years 3-5 Years Beyond 5 Years Letters of Credit: Employee-Related $ 67,523 $ 39,934 $ 27,589 $ — $ — Environmental 998 998 — — — Other 240,490 204,593 35,897 — — Total Letters of Credit 309,011 245,525 63,486 — — Surety Bonds: Employee-Related 115,352 115,352 — — — Environmental 551,830 542,859 8,971 — — Other 26,167 23,952 2,213 2 — Total Surety Bonds 693,349 682,163 11,184 2 — Guarantees: Coal 16,700 16,700 — — — Other 80,556 42,183 18,990 14,397 4,986 Total Guarantees 97,256 58,883 18,990 14,397 4,986 Total Commitments $ 1,099,616 $ 986,571 $ 93,660 $ 14,399 $ 4,986
Unrecorded Unconditional Purchase Obligations Disclosure	ONSOL Energy and CNX Gas Company enter into long-term unconditional purchase obligations to procure major equipment purchases, natural gas firm transportation, gas drilling services and other operating goods and services. These purchase obligations are not recorded on the Consolidated Balance Sheets. As of June 30, 2016 , the purchase obligations for each of the next five years and beyond were as follows: Obligations Due Amount Less than 1 year $ 193,389 1 - 3 years 278,664 3 - 5 years 224,537 More than 5 years 608,816 Total Purchase Obligations $ 1,305,406

Derivative Instruments (Tables)

Derivative Instruments (Tables)	6 Months Ended
	Jun. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	were as follows: For the Three Months Ended For the Six Months Ended June 30, June 30, 2016 2015 2016 2015 Beginning Balance – Accumulated OCI $ 33,656 $ 102,207 $ 43,470 $ 121,521 Gain Reclassified from Accumulated OCI (Net of tax: $6,521, $12,103, $12,145, $23,316) (11,203 ) (20,804 ) (21,017 ) (40,118 ) Ending Balance – Accumulated OCI $ 22,453 $ 81,403 $ 22,453 $ 81,403 CONSOL Energy expects to reclassify an additional $22,453 , net of tax of $12,866 , out of Accumulated Other Comprehensive Income over the remaining period ended December 31, 2016.

Fair Value of Financial Instr38

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	The financial instruments measured at fair value on a recurring basis are summarized below: Fair Value Measurements at June 30, 2016 Fair Value Measurements at December 31, 2015 Description (Level 1) (Level 2) (Level 3) (Level 1) (Level 2) (Level 3) Gas Derivatives $ — $ (75,589 ) $ — $ — $ 266,558 $ — Murray Energy Guarantees $ — $ — $ (1,463 ) $ — $ — $ (1,228 )
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]	June 30, 2016 December 31, 2015 Carrying Amount Fair Value Carrying Amount Fair Value Cash and Cash Equivalents $ 97,626 $ 97,626 $ 72,574 $ 72,574 Short-Term Notes Payable $ (466,000 ) $ (466,000 ) $ (952,000 ) $ (952,000 ) Long-Term Debt $ (2,750,784 ) $ (2,374,724 ) $ (2,738,735 ) $ (1,808,936 )

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Industry segment results	Marcellus Shale Utica Shale Coalbed Methane Other Gas Total E&P PA Operations Other Coal Total Coal Other Adjustments and Eliminations Consolidated Sales—Outside $ 83,651 $ 41,037 $ 33,574 $ 9,671 $ 167,933 $ 250,562 $ 604 $ 251,166 $ — $ — $ 419,099 Gain (Loss) on Commodity Derivative Instruments 48,870 10,019 16,478 (274,747 ) (199,380 ) — — — — — (199,380 ) Other Outside Sales — — — — — — 8,059 8,059 — — 8,059 Sales—Purchased Gas — — — 7,929 7,929 — — — — — 7,929 Freight—Outside — — — — — 11,186 261 11,447 — — 11,447 Total Sales and Freight $ 132,521 $ 51,056 $ 50,052 $ (257,147 ) $ (23,518 ) $ 261,748 $ 8,924 $ 270,672 $ — $ — $ 247,154 Earnings (Loss) Before Income Taxes $ 13,304 $ 9,923 $ 5,218 $ (322,944 ) $ (294,499 ) $ 22,773 $ 642 $ 23,415 $ (62,280 ) $ — $ (333,364 ) (A) Segment Assets $ 6,511,352 $ 2,029,307 $ 650,870 $ 2,680,177 $ 470,809 $ 122,419 $ 9,784,757 (B) Depreciation, Depletion and Amortization $ 105,151 $ 41,698 $ (11,629 ) $ 30,069 $ 1 $ — $ 135,221 Capital Expenditures $ 23,452 $ 13,099 $ 424 $ 13,523 $ 618 $ — $ 37,593 (A) Includes equity in earnings of unconsolidated affiliates of $9,163 and $56 for E&P and Coal, respectively. (B) Includes investments in unconsolidated equity affiliates of $252,517 and $3,650 for E&P and Coal, respectively.	Marcellus Shale Utica Shale Coalbed Methane Other Gas Total E&P PA Operations Other Coal Total Coal Other Adjustments and Eliminations Consolidated Sales—Outside $ 81,321 $ 17,661 $ 46,640 $ 14,032 $ 159,654 $ 318,995 $ — $ 318,995 $ — $ — $ 478,649 (C) Gain (Loss) on Commodity Derivative Instruments 18,260 — 18,752 (19,690 ) 17,322 — — — — — 17,322 Other Outside Sales — — — — — — 6,337 6,337 — — 6,337 Sales—Purchased Gas — — — 1,517 1,517 — — — — — 1,517 Freight—Outside — — — — — 2,706 44 2,750 — — 2,750 Intersegment Transfers — — 349 — 349 — — — — (349 ) — Total Sales and Freight $ 99,581 $ 17,661 $ 65,741 $ (4,141 ) $ 178,842 $ 321,701 $ 6,381 $ 328,082 $ — $ (349 ) $ 506,575 (Loss) Earnings Before Income Taxes $ (1,528 ) $ (6,710 ) $ 13,997 $ (897,131 ) $ (891,372 ) $ 61,804 $ 9,635 $ 71,439 $ (58,610 ) $ (349 ) $ (878,892 ) (D) Segment Assets $ 6,761,700 $ 2,090,674 $ 934,115 $ 3,024,789 $ 180,931 $ 998,441 $ 10,965,861 (E) Depreciation, Depletion and Amortization $ 89,850 $ 47,335 $ 945 $ 48,280 $ 5 $ — $ 138,135 Capital Expenditures $ 289,152 $ 35,415 $ 1,489 $ 36,904 $ 3,822 $ — $ 329,878 (C) Included in the Coal segment are sales of $51,676 to Duke Energy, which comprises over 10% of sales. (D) Includes equity in earnings of unconsolidated affiliates of $10,032 and $1,895 for E&P and Coal, respectively. (E) Includes investments in unconsolidated equity affiliates of $181,106 and $35,477 for E&P and Coal, respectively.
Reconciliation of Revenue and Operating Income from Segments to Consolidated	For the Three Months Ended June 30, For the Six Months Ended June 30, Loss Before Income Taxes: 2016 2015 2016 2015 Segment Loss Before Income Taxes for reportable business segments $ (271,084 ) $ (819,933 ) $ (286,591 ) $ (651,643 ) Segment Loss Before Income Taxes for all other business segments (14,853 ) (12,087 ) (14,985 ) (18,762 ) Interest expense, net (47,427 ) (46,506 ) (97,292 ) (101,627 ) Eliminations — (349 ) (424 ) (896 ) Loss on debt extinguishment — (17 ) — (67,751 ) Loss Before Income Taxes $ (333,364 ) $ (878,892 ) $ (399,292 ) $ (840,679 )
Reconciliation of Assets and Liabilities from Segment to Consolidated	Total Assets: June 30, 2016 2015 Segment assets for total reportable business segments $ 9,191,529 $ 9,786,489 Segment assets for all other business segments 197,333 80,358 Items excluded from segment assets: Cash and other investments 97,547 9,942 Recoverable income taxes — 21,211 Deferred tax assets 175,929 69,420 Discontinued Operations 122,419 998,441 Total Consolidated Assets $ 9,784,757 $ 10,965,861

Guarantor Subsidiaries Financia

Guarantor Subsidiaries Financial Information (Tables)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Condensed Financial Statements, Captions [Line Items]
Guarantor FInancial Statements [Table Text Block] [Table Text Block]	Income Statement for the Three Months Ended June 30, 2015 (unaudited): Parent Issuer CNX Gas Guarantor Other Subsidiary Guarantors CNXC Other Subsidiary Non-Guarantors Elimination Consolidated Revenues and Other Income: Natural Gas, NGLs and Oil Sales $ — $ 160,004 $ — $ — $ — $ (350 ) $ 159,654 Gain on Commodity Derivative Instruments — 17,322 — — — — 17,322 Coal Sales — — 255,196 63,799 — — 318,995 Other Outside Sales — — 6,337 — — — 6,337 Purchased Gas Sales — 1,517 — — — — 1,517 Freight-Outside Coal — — 2,209 541 — — 2,750 Miscellaneous Other Income (565,923 ) 13,214 21,588 135 1,976 563,697 34,687 Gain on Sale of Assets — 1,545 2,757 10 — — 4,312 Total Revenue and Other Income (565,923 ) 193,602 288,087 64,485 1,976 563,347 545,574 Costs and Expenses: Exploration and Production Costs Lease Operating Expense — 29,521 — — — — 29,521 Transportation, Gathering and Compression — 83,196 — — — — 83,196 Production, Ad Valorem, and Other Fees — 6,938 — — — — 6,938 Depreciation, Depletion and Amortization — 89,850 — — — — 89,850 Exploration and Production Related Other Costs — 2,324 — — (11 ) 11 2,324 Purchased Gas Costs — 1,061 — — — — 1,061 Other Corporate Expenses — 20,622 — — — — 20,622 Impairment of Exploration and Production Properties — 828,905 — — — — 828,905 Selling, General, and Administrative Costs — 21,070 — — — — 21,070 Total Exploration and Production Costs — 1,083,487 — — (11 ) 11 1,083,487 Coal Costs Operating and Other Costs 1,946 — 171,820 39,256 — — 213,022 Depreciation, Depletion and Amortization 147 — 38,666 9,467 — — 48,280 Freight Expense — — 2,209 541 — — 2,750 Selling, General, and Administrative Costs — — 5,002 1,145 — — 6,147 Other Corporate Expenses — — 8,435 1,772 — — 10,207 Total Coal Costs 2,093 — 226,132 52,181 — — 280,406 Other Costs Miscellaneous Operating Expense 13,140 — 680 — 225 — 14,045 Depreciation, Depletion and Amortization — — 5 — — — 5 Loss on Debt Extinguishment 17 — — — — — 17 Interest Expense 44,264 1,484 1,626 2,328 30 (3,226 ) 46,506 Total Other Costs 57,421 1,484 2,311 2,328 255 (3,226 ) 60,573 Total Costs And Expenses 59,514 1,084,971 228,443 54,509 244 (3,215 ) 1,424,466 (Loss) Earnings Before Income Tax (625,437 ) (891,369 ) 59,644 9,976 1,732 566,562 (878,892 ) Income Taxes (22,136 ) (351,270 ) 71,081 — 656 — (301,669 ) (Loss) Income From Continuing Operations (603,301 ) (540,099 ) (11,437 ) 9,976 1,076 566,562 (577,223 ) Loss From Discontinued Operations, net — — — — (26,078 ) — (26,078 ) Net (Loss) Income $ (603,301 ) $ (540,099 ) $ (11,437 ) $ 9,976 $ (25,002 ) $ 566,562 $ (603,301 )
Guarantor Condensed Cash Flow [Table Text Block]		Cash Flow for the Six Months Ended June 30, 2015 (unaudited): Parent CNX Gas Guarantor Other Subsidiary Guarantors CNXC Non-Guarantor Other Subsidiary Non- Guarantors Elimination Consolidated Net Cash (Used in) Provided by Continuing Operations $ (362,496 ) $ 475,631 $ 83,091 $ 38,538 $ (27,257 ) $ 40,196 $ 247,703 Net Cash Provided by Discontinued Operating Activities — — — — 46,512 — 46,512 Net Cash (Used in) Provided by Operating Activities $ (362,496 ) $ 475,631 $ 83,091 $ 38,538 $ 19,255 $ 40,196 $ 294,215 Cash Flows from Investing Activities: Capital Expenditures $ (6,758 ) $ (539,455 ) $ (56,678 ) $ (13,593 ) $ — $ — $ (616,484 ) Proceeds From Sales of Assets — 2,607 4,279 45 — — 6,931 (Investments in), net of Distributions from, Equity Affiliates — (36,201 ) (7,560 ) — — — (43,761 ) Net Cash Used in Continuing Operations (6,758 ) (573,049 ) (59,959 ) (13,548 ) — — (653,314 ) Net Cash Used in Discontinued Investing Activities — — — — (19,301 ) — (19,301 ) Net Cash Used in Investing Activities $ (6,758 ) $ (573,049 ) $ (59,959 ) $ (13,548 ) $ (19,301 ) $ — $ (672,615 ) Cash Flows from Financing Activities: Proceeds from (Payments on) Short-Term Borrowings $ 1,058,000 $ 70,000 $ — $ — $ — $ (70,000 ) $ 1,058,000 (Payments on) Proceeds from Miscellaneous Borrowings (788 ) (3,180 ) (4,875 ) 4,814 — — (4,029 ) Payments on Long-Term Borrowings (1,263,719 ) — — — — — (1,263,719 ) Proceeds from Long-Term Borrowings 492,760 — — — — — 492,760 Proceeds from Securitization Facility 38,669 — — — — — 38,669 Net Change in Parent Advancements — — — (29,804 ) — 29,804 — Tax Benefit from Stock-Based Compensation 198 — — — — — 198 Dividends Paid (28,711 ) — — — — — (28,711 ) Proceeds from Issuance of Common Stock 8,288 — — — — — 8,288 Treasury Stock Activity (71,674 ) — — — — — (71,674 ) Debt Issuance and Financing Fees — — (18,257 ) — — — (18,257 ) Net Cash Provided by (Used in) Continuing Operations 233,023 66,820 (23,132 ) (24,990 ) — (40,196 ) 211,525 Net Cash Used in Discontinued Financing Activities — — — — (83 ) — (83 ) Net Cash Provided by (Used in) Financing Activities $ 233,023 $ 66,820 $ (23,132 ) $ (24,990 ) $ (83 ) $ (40,196 ) $ 211,442
Guarantor Condensed Comprehensive Income [Table Text Block]	Statement of Comprehensive Income for the Three Months Ended June 30, 2015 (unaudited): Parent CNX Gas Guarantor Other Subsidiary Guarantors CNXC Non- Guarantor Other Subsidiary Non- Guarantors Elimination Consolidated Net (Loss) Income $ (603,301 ) $ (540,099 ) $ (11,437 ) $ 9,976 $ (25,002 ) $ 566,562 $ (603,301 ) Other Comprehensive (Loss) Income: Actuarially Determined Long-Term Liability Adjustments 9,467 — 9,854 (387 ) — (9,467 ) 9,467 Reclassification of Cash Flow Hedge from OCI to Earnings (20,804 ) (20,804 ) — — — 20,804 (20,804 ) Other Comprehensive (Loss) Income: (11,337 ) (20,804 ) 9,854 (387 ) — 11,337 (11,337 ) Comprehensive (Loss) Income $ (614,638 ) $ (560,903 ) $ (1,583 ) $ 9,589 $ (25,002 ) $ 577,899 $ (614,638 )
Guarantor Balance Sheet [Table Text Block]	Balance Sheet at December 31, 2015 : Parent Issuer CNX Gas Guarantor Other Subsidiary Guarantors CNXC Non-Guarantor Other Subsidiary Non- Guarantors Elimination Consolidated Assets: Current Assets: Cash and Cash Equivalents $ 64,995 $ 75 $ — $ 6,531 $ 973 $ — $ 72,574 Accounts and Notes Receivable: Trade — 72,664 63,201 15,518 — — 151,383 Other Receivables 18,933 99,001 3,424 377 — — 121,735 Inventories — 13,815 43,186 9,791 — — 66,792 Recoverable Income Taxes 72,913 (59,026 ) — — — — 13,887 Prepaid Expenses 27,245 244,680 21,282 4,080 — — 297,287 Current Assets of Discontinued Operations — — — — 81,106 — 81,106 Total Current Assets 184,086 371,209 131,093 36,297 82,079 — 804,764 Property, Plant and Equipment: Property, Plant and Equipment 156,348 8,875,027 4,071,050 692,482 — — 13,794,907 Less-Accumulated Depreciation, Depletion and Amortization 111,367 2,695,674 1,934,431 320,729 — — 5,062,201 Property, Plant and Equipment of Discontinued Operations — — — — 936,670 — 936,670 Total Property, Plant and Equipment-Net 44,981 6,179,353 2,136,619 371,753 936,670 — 9,669,376 Other Assets: Investment in Affiliates 9,701,145 234,803 6,293 — — (9,704,911 ) 237,330 Other 53,529 47,892 98,888 14,079 — — 214,388 Other Assets of Discontinued Operations — — — — 4,044 — 4,044 Total Other Assets 9,754,674 282,695 105,181 14,079 4,044 (9,704,911 ) 455,762 Total Assets $ 9,983,741 $ 6,833,257 $ 2,372,893 $ 422,129 $ 1,022,793 $ (9,704,911 ) $ 10,929,902 Liabilities and Equity: Current Liabilities: Accounts Payable $ 33,427 $ 149,930 $ 39,412 $ 14,023 $ — $ 13,817 $ 250,609 Accounts Payable (Recoverable)-Related Parties 1,786,710 1,521,444 (3,088,340 ) 3,452 (209,449 ) (13,817 ) — Current Portion of Long-Term Debt (2,777 ) 6,798 918 49 — — 4,988 Short-Term Notes Payable 952,000 — — — — — 952,000 Other Accrued Liabilities 63,668 102,753 225,477 29,929 — — 421,827 Current Liabilities of Discontinued Operations — — — — 51,514 — 51,514 Total Current Liabilities 2,833,028 1,780,925 (2,822,533 ) 47,453 (157,935 ) — 1,680,938 Long-Term Debt: 2,423,247 33,141 105,770 181,046 5,001 — 2,748,205 Deferred Credits and Other Liabilities: Deferred Income Taxes (122,547 ) 197,176 — — — — 74,629 Postretirement Benefits Other Than Pensions — — 630,892 — — — 630,892 Pneumoconiosis Benefits — — 110,356 1,547 — — 111,903 Mine Closing — — 220,617 6,722 — — 227,339 Gas Well Closing — 135,174 28,591 77 — — 163,842 Workers’ Compensation — — 67,469 2,343 — — 69,812 Salary Retirement 91,596 — — — — — 91,596 Reclamation — — 25 — — — 25 Other 56,390 105,588 4,408 571 — — 166,957 Deferred Credits and Other Liabilities of Discontinued Operations — — — — 107,988 — 107,988 Total Deferred Credits and Other Liabilities 25,439 437,938 1,062,358 11,260 107,988 — 1,644,983 Total CONSOL Energy Inc. Stockholders’ Equity 4,702,027 4,581,253 4,027,298 182,370 1,067,739 (9,858,660 ) 4,702,027 Noncontrolling Interest — — — — — 153,749 153,749 Total Liabilities and Equity $ 9,983,741 $ 6,833,257 $ 2,372,893 $ 422,129 $ 1,022,793 $ (9,704,911 ) $ 10,929,902

Basis of Presentation Anti-Dilu

Basis of Presentation Anti-Dilutive Options and Units Exluded from Earnings Per Share (Details) - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted earnings per share	6,076,556	8,845,878	6,076,556
Antidilutive Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted earnings per share	3,667,080	6,348,665	3,667,080
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted earnings per share	1,606,672	742,868	1,606,672
Performance Share Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted earnings per share	0	951,541	0
Performance Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted earnings per share	802,804	802,804	802,804

Basis of Presentation Share-bas

Basis of Presentation Share-based Compensation (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price				$ 22.78
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	83,710	324,741	568,390	1,347,261
Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Exercised	0	0	0	497,134
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Exercised	0	287,592	0	363,620
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Exercised	83,710	37,149	568,390	486,507

Basis of Presentation Earnings

Basis of Presentation Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net Income (Loss) Attributable to Noncontrolling Interest	$ 1,179	$ 0	$ 2,293	$ 0
Income (Loss) from Continuing Operations Attributable to Parent	(233,010)	(577,223)	(275,721)	(524,027)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(235,639)	(26,078)	(289,391)	(244)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(468,649)	(603,301)	(565,112)	(524,271)
Net Income (Loss)	$ (469,828)	$ (603,301)	$ (567,405)	$ (524,271)
Weighted average shares of common stock outstanding:
Basic	229,409,325	228,928,803	229,334,277	229,329,382
Effect of stock-based compensation awards	0	0	0	0
Dilutive	229,409,325	228,928,803	229,334,277	229,329,382
Earnings Per Share:
Income (Loss) from Continuing Operations, Per Basic Share	$ (1.02)	$ (2.52)	$ (1.21)	$ (2.29)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	(1.03)	(0.12)	(1.26)	0
Earnings Per Share, Basic	(2.05)	(2.64)	(2.47)	(2.29)
Income (Loss) from Continuing Operations, Per Diluted Share	(1.02)	(2.52)	(1.21)	(2.29)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	(1.03)	(0.12)	(1.26)	0
Earnings Per Share, Diluted	$ (2.05)	$ (2.64)	$ (2.47)	$ (2.29)

Basis of Presentation Changes i

Basis of Presentation Changes in Accumulated Other Comprehensive Income / (Loss) by component (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	$ 19,254	$ (30,326)	$ 24,618	$ (30,566)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(331,054)		(331,054)		$ (315,598)
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	22,453
Other Comprehensive Income (Loss), Net of Tax	(3,158)	(11,337)	(15,456)	(30,800)
Amounts reclassified from accumulated other comprehensive income			(815)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	8,045	$ 9,467	5,561	$ 9,318
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(331,054)		(331,054)		(315,598)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax			(9,046)
Other Comprehensive Income (Loss), Net of Tax			(15,456)
Amounts reclassified from accumulated other comprehensive income			(6,410)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	22,453		22,453		43,470
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	0
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	(21,017)
Other Comprehensive Income (Loss), Net of Tax	(21,017)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (353,507)		(353,507)		$ (359,068)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax			(9,046)
Other Comprehensive Income (Loss), Net of Tax			5,561
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax			$ 14,607

Basis of Presentation Reclassif

Basis of Presentation Reclassification of adjustments out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			$ 815
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	$ (17,724)	$ (32,907)	(33,162)	$ (63,434)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	6,521	12,103	12,145	23,316
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(11,203)	(20,804)	(21,017)	(40,118)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(148)	(54,495)	(295)	(69,308)
Defined Benefit Plan, Amortization of Gains (Losses)	5,706	24,169	11,217	38,742
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, before Tax	13,696	0	13,696	0
Defined Benefit Plan, Net Periodic Benefit Cost	19,254	(30,326)	24,618	(30,566)
Tax Expense on Actuarially Determined Long-Term Liabilities	(7,178)	11,398	(9,196)	11,488
Actuarially Determined Long-Term Liability Adjustments, Net of Tax	$ 12,076	$ (18,928)	$ 15,422	$ (19,078)

Discontinued Operations Stateme

Discontinued Operations Statement $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2016USD ($)TRate	Jun. 30, 2015USD ($)	Dec. 31, 2015USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of Long-Lived Assets to be Disposed of	$ 355,681	$ 0	$ 355,681	$ 0
Royalty Percent | Rate			20.00%
Royalty Per Ton - Year 1 | T			75
Royalty Per Ton - Year 2 | T			78.75
Royalty Per Ton - Year 3 | T			82.69
Royalty Per Ton - Year 4 | T			86.82
Royalty Per Ton - Year 5 | T			91.16
Proceeds from Sale of Property Held-for-sale	402,799
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	38,364
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	103,085		$ 103,085		$ 936,670
Disposal Group, Including Discontinued Operation, Assets, Current	16,168		16,168		81,106
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	3,166		3,166		4,044
Disposal Group, Including Discontinued Operation, Liabilities, Current	24,938		24,938		51,514
Disposal Group, including discontinued operations, reclamation, non-current	28,516		28,516		34,126
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	1,254		1,254		5,001
Buchanan and Other Assets [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operations, coal sales	19,411	95,484	95,930	206,124
Disposal Group, Including Discontinued Operations, Cargo and Freight Revenue	5	1,501	1,017	3,008
Disposal Group, Including Discontinued Operation, Other Income	2	20	33	31
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	(100)	(3)	38,253	(194)
Disposal Group, Including Discontinued Operation, Revenue	19,518	97,008	58,727	209,357
Disposal Group, Including Discontinued Operation, Operating Expense	26,547	113,347	115,780	210,481
Disposal Group, Including Discontinued Operation, Operating Income (Loss)	(7,029)	(16,339)	(57,053)	(1,124)
Discontinued Operation, Tax Effect of Discontinued Operation	(127,071)	9,739	(123,343)	(880)
Disposal Group, Including Discontinued Operation, Operating Income (Loss)	(235,639)	$ (26,078)	(289,391)	$ (244)
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	10,672		10,672		49,125
Disposal Group, Including Discontinued Operation, Inventory	5,422		5,422		30,646
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets	9		9		970
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	65		65		365
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	103,085		103,085		936,670
Disposal Group, Including Discontinued Operation, Assets, Current	16,168		16,168		81,106
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	3,166		3,166		4,044
Disposal Group, Including Discontinued Operation, Assets	122,419		122,419		1,021,820
Disposal Group, Including Discontinued Operation, Accounts Payable	5,177		5,177		20,786
Disposal Group, Including Discontinued Operation, Liabilities, Current	19,761		19,761		30,728
Disposal Group, including discontinued operations, Pneumoconiosis Benefits	0		0		1,129
Disposal Group, including discontinued operations, Mine Closing non current	61,329		61,329		71,941
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	1,254		1,254		5,001
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	0		0		792
Disposal Group, Including Discontinued Operation, Liabilities	$ 116,037		$ 116,037		$ 164,503

Acquisitions (Details)

Acquisitions (Details) a in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)	Jun. 30, 2015USD ($)	Dec. 31, 2015USD ($)a
Business Acquisition [Line Items]
Payments to Acquire Property, Plant, and Equipment	$ 115,257,000	$ 616,484,000
Other Liabilities, Noncurrent	244,354,000		$ 166,957,000
Columbia Energy Ventures [Member]
Business Acquisition [Line Items]
Business Acquisition, Transaction Costs			$ 96,106,000
Payments to Acquire Property, Plant, and Equipment	15,216,000
Gas and Oil Area, Undeveloped, Gross | a			20,000
Other Liabilities, Current	9,000,000		$ 49,533,000
Other Long-term Debt, Noncurrent	28,682,000		40,286,000
Other Liabilities, Noncurrent	$ 8,349		$ 29,333

Other Income (Details)

Other Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Proceeds from Contributions from Affiliates	$ 1,014	$ 2,546	$ 3,328	$ 6,213
Gain (Loss) on Contract Termination		0	6,288	0
Gas Gathering, Transportation, Marketing and Processing Revenue	2,648	1,393	5,396	5,953
Rental Income, Nonoperating	9,079	9,406	18,275	18,998
Royalty Revenue	2,423	3,602	4,653	8,142
Interest Income, Other	547	364	761	1,507
Right of Way Income	2,070	5,422	17,803	7,950
Other Nonoperating Income	758	2,573	2,103	5,408
Other Income (including equity earnings)	33,032	34,687	81,163	71,208
CONE [Member]
Proceeds from Contributions from Affiliates	$ 8,205	$ 9,381	$ 22,556	$ 17,037

Pension and OPEB - Periodic C49

Pension and OPEB - Periodic Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Remeasurement of the Actuarially Determined Long-Term Liabilities	$ 6,203		$ 6,203
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.70%		3.70%		4.50%
Other Comprehensive (Income) Expense, Pension and Other Postretirement Benefits	$ 4,558
Remeasurement of actuarially determined liabilities, tax effect	2,935
Defined Benefit Plan, Net Periodic Benefit Cost	19,254	$ (30,326)	$ 24,618	$ (30,566)
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(148)	(54,495)	(295)	(69,308)
Amortization of actuarial gain	5,706	24,169	11,217	38,742
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	(13,696)	0	(13,696)	0
Defined Benefit Plan, Net Periodic Benefit Cost	11,118	5,004	8,541	10,009
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	482	2,350	963	4,700
Interest cost	6,841	8,580	13,683	17,160
Expected return on plan assets	(11,869)	(12,690)	(23,738)	(25,379)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(148)	(176)	(295)	(352)
Amortization of actuarial gain	2,116	6,940	4,232	13,880
Pension Contributions			1,307	2,521
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	0	0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost	10,852	(28,909)	21,705	(27,624)
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	0	0	0	0
Interest cost	6,060	6,889	12,121	13,884
Expected return on plan assets	0	0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	(54,320)	0	(68,956)
Amortization of actuarial gain	4,792	18,522	9,584	27,448
Defined Benefit Plan, Benefits Paid			23,312	26,935
Workers Compensation [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	3,409	4,111	6,581	8,153
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	1,904	2,347	3,809	4,695
Interest cost	638	799	1,275	1,597
Amortization of actuarial gain	$ (101)	$ (8)	$ (202)	$ (15)

CWP and Workers Comp - Net Pe50

CWP and Workers Comp - Net Periodic Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Remeasurement of the Actuarially Determined Long-Term Liabilities			$ 5,014
Deferred Income Taxes and Tax Credits			2,700
Amortization of actuarial gain	$ 5,706	$ 24,169	11,217	$ 38,742
Defined Benefit Plan, Net Periodic Benefit Cost	19,254	(30,326)	24,618	(30,566)
Workers Compensation [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	0	0	0	0
Service cost	1,904	2,347	3,809	4,695
Interest cost	638	799	1,275	1,597
Amortization of actuarial gain	(101)	(8)	(202)	(15)
Defined Benefit Plan, Administration Expenses	968	973	1,699	1,876
Payments for Postemployment Benefits			8,075	8,821
Defined Benefit Plan, Net Periodic Benefit Cost	3,409	4,111	6,581	8,153
Coal Workers Pneumoconiosis [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments	0	0	(1,307)	0
Service cost	1,041	1,623	2,244	3,246
Interest cost	1,053	1,279	2,176	2,558
Amortization of actuarial gain	(1,188)	(1,394)	(2,571)	(2,788)
Defined Benefit Plan, Administration Expenses	0	0	0	0
Payments for Coal Workers Pnenumoconiosis			5,600	5,293
Defined Benefit Plan, Net Periodic Benefit Cost	906	1,508	542	3,016
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension Contributions			1,307	2,521
Service cost	482	2,350	963	4,700
Interest cost	6,841	8,580	13,683	17,160
Amortization of actuarial gain	2,116	6,940	4,232	13,880
Defined Benefit Plan, Net Periodic Benefit Cost	11,118	5,004	8,541	10,009
Other Postretirement Benefit Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0	0	0	0
Interest cost	6,060	6,889	12,121	13,884
Amortization of actuarial gain	4,792	18,522	9,584	27,448
Defined Benefit Plan, Benefits Paid			23,312	26,935
Defined Benefit Plan, Net Periodic Benefit Cost	$ 10,852	(28,909)	21,705	(27,624)
Buchanan and Other Assets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost		$ 305	$ (1,290)	$ 380

Income Taxes Income Tax Reconci

Income Taxes Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	30.00%	34.30%	30.80%	37.70%
Unrecognized Tax Benefits	$ 15,536		$ 15,536		$ 12,702
Uncertain tax positions, effect if recognized			2,834
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	180		180		$ 53
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	$ 127		$ 127

Inventory Components (Details)

Inventory Components (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Coal	$ 2,975	$ 4,660
Supplies	57,843	62,132
Total Inventories	$ 60,818	$ 66,792

Accounts Receivable Securitiz53

Accounts Receivable Securitization (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
ACCOUNTS RECEIVABLE SECURITIZATION: [Abstract]
Financing Related Fees	$ 207	$ 3,000	$ 403

Property, Plant and Equipment54

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Impairment of Oil and Gas Properties	$ 0	$ 828,905	$ 0	$ 828,905
Drilling Cost	3,491,437		3,491,437		$ 3,452,989
Unproven gas properties	1,422,991		1,422,991		1,421,083
Gas gathering equipment	1,128,278		1,128,278		1,147,173
Gas wells and related equipment	819,408		819,408		785,744
Other gas assets	127,645		127,645		125,691
Gas advance royalties	15,278		15,278		19,745
Proven gas properties	1,928,917		1,928,917		1,922,602
Coal and other plant and equipment	2,856,928		2,856,928		2,853,436
Coal Lands and or Surface Rights	805,011		805,011		769,537
Property, Plant and Equipment, Other, Gross	371,064		371,064		361,872
Mine development	344,138		344,138		344,298
Coal advance mining royalties	330,738		330,738		328,715
Leased coal lands	224,304		224,304		262,022
Property, Plant and Equipment	13,866,137		13,866,137		13,794,907
Less Accumulated depreciation, depletion and amortization	5,360,046		5,360,046		5,062,201
Total Property, Plant and Equipment-Net	8,609,176		8,609,176		9,669,376
Property, Plant, and Equipment, Owned, Net	8,506,091		8,506,091		8,732,706
Proven Properties [Member]
Property, Plant and Equipment [Line Items]
Impairment of Oil and Gas Properties		824,742
Unproven Properties [Member]
Property, Plant and Equipment [Line Items]
Impairment of Oil and Gas Properties		$ 4,163
Gas Segment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	8,933,954		8,933,954		8,875,027
Less Accumulated depreciation, depletion and amortization	2,902,470		2,902,470		2,695,674
Total Property, Plant and Equipment-Net	6,031,484		6,031,484		6,179,353
Coal Segment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	4,932,183		4,932,183		4,919,880
Less Accumulated depreciation, depletion and amortization	2,457,576		2,457,576		2,366,527
Total Property, Plant and Equipment-Net	$ 2,474,607		$ 2,474,607		$ 2,553,353

Property, Plant and Equipment J

Property, Plant and Equipment Joint Venture Activity (Details) a in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)a
Noble JV [Member]
Property, Plant and Equipment [Line Items]
drill carry remaining	$ 1,624,448
Drilling commitment carry	1,846,000
Maximum Drilling Commitment Carry	$ 400,000
Gas and Oil Acreage, Unproved, Net | a	700
Hess [Member]
Property, Plant and Equipment [Line Items]
drill carry remaining	$ 6,616
Maximum Drilling Commitment Carry	$ 335,000
Gas and Oil Acreage, Unproved, Net | a	155

Short-Term Notes Payable (Detai

Short-Term Notes Payable (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)	Dec. 31, 2015USD ($)
Short-term Debt [Line Items]
Credit facility, face amount	$ 400,000
Notes and Loans Payable, Current	466,000	$ 952,000
Revolving Credit Facility [Member]
Short-term Debt [Line Items]
Credit facility, face amount		2,000,000
Line of Credit Facility, Maximum Borrowing Capacity	750,000
Additional Capacity Available On Credit Lines At Request	$ 500,000
Minimum interest coverage ratio	2.50
Interest coverage ratio	4.79
Current Ratio	2.75
Senior secured leverage ratio, maximum	1
Current secured leverage ratio	2.75
Short-term Debt	$ 466,000
Letters of credit outstanding	309,011	258,177
Borrowings and issuance of letters of credit remaining capacity	$ 1,224,989	$ 789,823

Long-Term Debt (Details)

Long-Term Debt (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Debt Instrument [Line Items]
Debt Issuance Costs, current	$ 4,422,000		$ 4,422,000
Payments of Debt Issuance Costs				$ 18,257,000
Capital Lease Obligations, Current	6,946,000		6,946,000		$ 7,590,000
Debt Issuance Costs, noncurrent	25,935,000		25,935,000		28,595,000
Long-term debt	(2,720,426,000)	$ (2,508,000)	(2,720,426,000)	(2,508,000)	(2,705,718,000)
Unamortized Debt Issuance Expense	30,357,000		30,357,000		33,017,000
Long-term Line of Credit, Noncurrent	198,000,000		198,000,000
Long-Term Debt	2,723,004,000		2,723,004,000		2,708,320,000
Less amounts due in one year	1,844,000		1,844,000		1,820,000
Long Term Debt, Current Maturities - Net of unamortized debt issuance costs	(2,578,000)		(2,578,000)		(2,602,000)
Gains (Losses) on Extinguishment of Debt	0	17,000	0	67,751,000
Senior notes due April 2020 at 8.25%
Debt Instrument [Line Items]
Long-term debt	(74,470,000)		(74,470,000)		(74,470,000)
Long-term Debt, Percentage Bearing Fixed Interest, Amount		0.0825		0.0825
Gains (Losses) on Extinguishment of Debt				67,734,000
Senior Secured Notes Due March 2021 Par Value Amount Purchased [Member]
Debt Instrument [Line Items]
Long-term debt	(229,176,000)		(229,176,000)
Senior notes due March 2021 at 6.375%
Debt Instrument [Line Items]
Long-term debt	(20,611,000)	(213,000)	(20,611,000)	(213,000)	(20,611,000)
Long-term Debt, Percentage Bearing Fixed Interest, Amount		0.06375		0.06375
Senior Secured Notes Due March 2021 Par Value [Member] [Member] [Member]
Debt Instrument [Line Items]
Long-term debt	(1,855,175,000)		(1,855,175,000)		(1,855,617,000)
Senior Notes due April 2023 at 8.0% [Member]
Debt Instrument [Line Items]
Long-term debt	(493,891,000)		(493,891,000)		(493,439,000)
Long-term Debt, Percentage Bearing Fixed Interest, Amount		0.0800		0.0800
Long-term Debt, Gross		500,000,000		500,000,000
Debt Instrument, Unamortized Discount		7,240,000		7,240,000
Senior Notes 8.25 Percent Due April 2020 Amount Purchased [Member]
Debt Instrument [Line Items]
Long-term debt		$ (937,822,000)		$ (937,822,000)
Baltimore Port Facility revenue bonds in series due September 2025 at 5.75%
Debt Instrument [Line Items]
Long-term debt	(102,865,000)		(102,865,000)		(102,865,000)
Advance royalty commitments
Debt Instrument [Line Items]
Long-term debt	(3,482,000)		(3,482,000)		(3,964,000)
Other long-term notes maturing at various dates through 2031
Debt Instrument [Line Items]
Long-term debt	(2,289,000)		(2,289,000)		(2,769,000)
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt	$ (198,000,000)		$ (198,000,000)		(185,000,000)
Line of Credit Facility, Maximum Borrowing Capacity					$ 400,000,000

Commitments and Contingencies A

Commitments and Contingencies Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Line Items]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 613,344
Murray Energy [Member]
Commitments and Contingencies Disclosure [Line Items]
Contractual Obligation	$ 1,463	$ 1,228

Unrecorded Unconditional Purcha

Unrecorded Unconditional Purchase Obligation (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 1,099,616
Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	986,571
More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	93,660
More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	14,399
Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	4,986
Standby Letters of Credit [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	309,011
Standby Letters of Credit [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	245,525
Standby Letters of Credit [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	63,486
Standby Letters of Credit [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Standby Letters of Credit [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Surety Bonds [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	693,349
Surety Bonds [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	682,163
Surety Bonds [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	11,184
Surety Bonds [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	2
Surety Bonds [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Guarantees [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	97,256
Guarantees [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	58,883
Guarantees [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	18,990
Guarantees [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	14,397
Guarantees [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	4,986
Employee Related Commitments [Member] | Standby Letters of Credit [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	67,523
Employee Related Commitments [Member] | Standby Letters of Credit [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	39,934
Employee Related Commitments [Member] | Standby Letters of Credit [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	27,589
Employee Related Commitments [Member] | Standby Letters of Credit [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Employee Related Commitments [Member] | Standby Letters of Credit [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Employee Related Commitments [Member] | Surety Bonds [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	115,352
Employee Related Commitments [Member] | Surety Bonds [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	115,352
Employee Related Commitments [Member] | Surety Bonds [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Employee Related Commitments [Member] | Surety Bonds [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Employee Related Commitments [Member] | Surety Bonds [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Environment Related Commitments [Member] | Standby Letters of Credit [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	998
Environment Related Commitments [Member] | Standby Letters of Credit [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	998
Environment Related Commitments [Member] | Standby Letters of Credit [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Environment Related Commitments [Member] | Standby Letters of Credit [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Environment Related Commitments [Member] | Standby Letters of Credit [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Environment Related Commitments [Member] | Surety Bonds [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	551,830
Environment Related Commitments [Member] | Surety Bonds [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	542,859
Environment Related Commitments [Member] | Surety Bonds [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	8,971
Environment Related Commitments [Member] | Surety Bonds [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Environment Related Commitments [Member] | Surety Bonds [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Other Commitments [Member] | Standby Letters of Credit [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	240,490
Other Commitments [Member] | Standby Letters of Credit [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	204,593
Other Commitments [Member] | Standby Letters of Credit [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	35,897
Other Commitments [Member] | Standby Letters of Credit [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Other Commitments [Member] | Standby Letters of Credit [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Other Commitments [Member] | Surety Bonds [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	26,167
Other Commitments [Member] | Surety Bonds [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	23,952
Other Commitments [Member] | Surety Bonds [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	2,213
Other Commitments [Member] | Surety Bonds [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	2
Other Commitments [Member] | Surety Bonds [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Other Commitments [Member] | Guarantees [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	80,556
Other Commitments [Member] | Guarantees [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	42,183
Other Commitments [Member] | Guarantees [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	18,990
Other Commitments [Member] | Guarantees [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	14,397
Other Commitments [Member] | Guarantees [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	4,986
Coal Segment [Member] | Guarantees [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	16,700
Coal Segment [Member] | Guarantees [Member] | Balance on First Anniversary [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	16,700
Coal Segment [Member] | Guarantees [Member] | More Than One And Within Three Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Coal Segment [Member] | Guarantees [Member] | More Than Three And Within Five Years From Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Coal Segment [Member] | Guarantees [Member] | Beyond Five Years of Balance Sheet Date [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	0
Murray Energy [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Contractual Obligation	1,463	$ 1,228
Purchase Commitment [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Less than 1 year	193,389
1 - 3 years	278,664
3 - 5 years	224,537
More than 5 years	608,816
Total Purchase Obligations	$ 1,305,406

Derivative Instruments (Details

Derivative Instruments (Details) $ in Thousands, MMcf in Billions	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2016USD ($)	Jun. 30, 2016USD ($)MMcf	Dec. 31, 2014MMcf	Dec. 31, 2015USD ($)
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	$ 22,453
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, tax effect		$ 12,866
Commodity Member [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume | MMcf		615.3	456.1
Derivative Liability, Current	76,458	$ 76,458		$ 5,137
Derivative Liability, Noncurrent	66,104	66,104		0
Derivative Asset, Noncurrent	$ 13,126	$ 13,126		$ 44,539
Basis Member [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume | MMcf		283.8	124.4
Propane [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume | MMcf		0.2

The Effect of Derivative Instru

The Effect of Derivative Instruments on the Consolidated Statement of Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2014
Derivative [Line Items]
Derivative, Cash Received on Hedge	$ 80,335	$ 42,258	$ 164,666	$ 72,399
Unrealized Gain (Loss) on Commodity Derivatives	(199,380)	17,322	(144,320)	107,467
Accumulated Other Comprehensive Income (Loss), Net of Tax	(331,054)		(331,054)		$ (315,598)
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	(11,203)	(20,804)	(21,017)	(40,118)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(11,203)	(20,804)	(21,017)	(40,118)
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	(279,715)	(24,936)	(308,986)	35,068
Gain (Loss) on Hedging Activity	(199,380)	17,322	(144,320)	107,467
Swap [Member]
Derivative [Line Items]
Derivative, Cash Received on Hedge	(91,302)	(42,097)	(173,449)	(72,356)
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	(306,376)	(60,277)	(344,398)	(29,173)
Gain (Loss) on Hedging Activity	(215,074)	(18,180)	(170,949)	43,183
Swap [Member] | Cash Flow Hedging [Member] | Natural Gas [Member]
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax		33,656		33,656	$ 43,470	$ 121,521	$ 102,207
Propane [Member]
Derivative [Line Items]
Derivative, Cash Received on Hedge	114	0	114	0
Basis Swap [Member]
Derivative [Line Items]
Derivative, Cash Received on Hedge		(161)		(43)
Derivative, Cost of Hedge Net of Cash Received	(10,853)		(8,669)
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	9,463	2,434	3,042	807
Gain (Loss) on Hedging Activity	(1,390)	2,595	(5,627)	850
Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative [Line Items]
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	17,724	32,907	33,162	63,434
Gain (Loss) on Hedging Activity	17,724	32,907	33,162	63,434
Natural Gas Liquids [Member]
Derivative [Line Items]
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	(526)	0	(792)	0
Gain (Loss) on Hedging Activity	(640)	0	(906)	0
Revenue Mineral Sales [Member] | Swap [Member] | Cash Flow Hedging [Member] | Natural Gas [Member]
Derivative [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 22,453	$ 81,403	$ 22,453	$ 81,403

Derivative Instruments Asset_Li

Derivative Instruments Asset/Liability Derivative Table (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Commodity Member [Member]
Derivative [Line Items]
Derivative Asset, Current	$ 58,057	$ 234,409
Derivative Liability, Noncurrent	66,104	0
Derivative Asset, Noncurrent	13,126	44,539
Derivative Liability, Current	76,458	5,137
Gas Cash Flow hedges	71,183	278,948
Derivative Liability	142,562	5,137
Basis Swap [Member]
Derivative [Line Items]
Derivative Asset, Current	9,188	5,429
Derivative Liability, Noncurrent	12,704	12,206
Derivative Asset, Noncurrent	6,999	1,093
Derivative Liability, Current	7,693	1,569
Gas Cash Flow hedges	16,187	6,522
Derivative Liability	$ 20,397	$ 13,775

Financial Instruments Measured

Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Gas Cash Flow hedges	$ 0	$ 0
Guarantees, Fair Value Disclosure	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Gas Cash Flow hedges	(75,589)	266,558
Guarantees, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Gas Cash Flow hedges	0	0
Guarantees, Fair Value Disclosure	$ (1,463)	$ (1,228)

Fair Value of Financial Instr64

Fair Value of Financial Instruments Fair Value Disclosures (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	$ 97,626	$ 72,574	$ 10,027	$ 176,985
Notes and Loans Payable, Current	466,000	952,000
Long-term Debt	2,720,426	2,705,718	$ 2,508
Portion at Fair Value Measurement [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	97,626	72,574
Long-term Debt	2,374,724	1,808,936
Reported Value Measurement [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash and Cash Equivalents	97,626	72,574
Long-term Debt	$ 2,750,784	$ 2,738,735

Industry Segment Results (Detai

Industry Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total Revenue and Other Income	$ 285,800	$ 545,574	$ 818,571	$ 1,306,423
Natural Gas, NGLs and Oil Sales	167,933	159,654	349,188	384,092
Revenue, Net	247,154	506,575	739,070	1,228,929
Sales-Outside	419,099	478,649	826,518	1,089,113
Gain (Loss) on Hedging Activity	(199,380)	17,322	(144,320)	107,467
Sales Revenue, Services, Other	8,059	6,337	15,768	19,467
Revenue from Purchased Oil and Gas	7,929	1,517	16,547	5,114
Freight-Outside	11,447	2,750	24,557	7,768
Segment Reporting - Intersegment Transfers		0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(333,364)	(878,892)	(399,292)	(840,679)
Total Assets	9,784,757	10,965,861	9,784,757	10,965,861	$ 10,929,902
Depreciation, Depletion and Amortization	135,221	138,135	290,209	280,288
Segment Reporting - Capital Expenditures	37,593	329,878	115,257	616,484
Income (Loss) from Equity Method Investments			25,884	23,250
XCoal Energy and Resources [Member]
Segment Reporting Information [Line Items]
Total Revenue and Other Income		51,676
Total Reportable Segments [Member]
Segment Reporting Information [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(271,084)	(819,933)	(286,591)	(651,643)
Total Assets	9,191,529	9,786,489	9,191,529	9,786,489
Coal Segment [Member]
Segment Reporting Information [Line Items]
Revenue, Net	270,672	328,082	517,655	732,256
Sales-Outside	251,166	318,995	477,330	705,021
Gain (Loss) on Hedging Activity	0	0	0	0
Sales Revenue, Services, Other	8,059	6,337	15,768	19,467
Revenue from Purchased Oil and Gas	0	0	0	0
Freight-Outside	11,447	2,750	24,557	7,768
Segment Reporting - Intersegment Transfers		0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	23,415	71,439	31,449	163,738
Total Assets	2,680,177	3,024,789	2,680,177	3,024,789
Depreciation, Depletion and Amortization	30,069	48,280	79,342	102,982
Segment Reporting - Capital Expenditures	13,523	36,904	27,044	70,271
Income (Loss) from Equity Method Investments	56	1,895	1,123	4,840
Equity Method Investments	3,650	35,477	3,650	35,477
Coal Segment [Member] | Other Coal [Member]
Segment Reporting Information [Line Items]
Revenue, Net	8,924	6,381	16,667	23,749
Sales-Outside	604	0	604	1,589
Gain (Loss) on Hedging Activity	0	0	0	0
Sales Revenue, Services, Other	8,059	6,337	15,768	19,467
Revenue from Purchased Oil and Gas	0	0	0	0
Freight-Outside	261	44	295	2,693
Segment Reporting - Intersegment Transfers		0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	642	9,635	(14,398)	3,533
Total Assets	650,870	934,115	650,870	934,115
Depreciation, Depletion and Amortization	(11,629)	945	(3,622)	9,903
Segment Reporting - Capital Expenditures	424	1,489	1,041	2,310
Coal Segment [Member] | PA Operations [Member]
Segment Reporting Information [Line Items]
Revenue, Net	261,748	321,701	500,988	708,507
Sales-Outside	250,562	318,995	476,726	703,432
Gain (Loss) on Hedging Activity	0	0	0	0
Sales Revenue, Services, Other	0	0	0	0
Revenue from Purchased Oil and Gas	0	0	0	0
Freight-Outside	11,186	2,706	24,262	5,075
Segment Reporting - Intersegment Transfers		0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	22,773	61,804	45,847	160,205
Total Assets	2,029,307	2,090,674	2,029,307	2,090,674
Depreciation, Depletion and Amortization	41,698	47,335	82,964	93,079
Segment Reporting - Capital Expenditures	13,099	35,415	26,003	67,961
Gas Segment [Member]
Segment Reporting Information [Line Items]
Natural Gas, NGLs and Oil Sales	167,933	159,654	349,188	384,092
Revenue, Net	(23,518)	178,842	221,839	497,569
Gain (Loss) on Hedging Activity	(199,380)	17,322	(144,320)	107,467
Sales Revenue, Services, Other	0	0	0	0
Revenue from Purchased Oil and Gas	7,929	1,517	16,547	5,114
Freight-Outside	0	0	0	0
Segment Reporting - Intersegment Transfers		349	424	896
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(294,499)	(891,372)	(318,040)	(815,381)
Total Assets	6,511,352	6,761,700	6,511,352	6,761,700
Depreciation, Depletion and Amortization	105,151	89,850	210,866	177,294
Segment Reporting - Capital Expenditures	23,452	289,152	86,314	539,455
Income (Loss) from Equity Method Investments	9,163	10,032	24,761	18,410
Equity Method Investments	252,517	181,106	252,517	181,106
Gas Segment [Member] | Marcellus Shale [Member]
Segment Reporting Information [Line Items]
Natural Gas, NGLs and Oil Sales	83,651	81,321	179,789	207,622
Revenue, Net	132,521	99,581	277,223	238,673
Gain (Loss) on Hedging Activity	48,870	18,260	97,434	31,051
Sales Revenue, Services, Other	0	0	0	0
Revenue from Purchased Oil and Gas	0	0	0	0
Freight-Outside	0	0	0	0
Segment Reporting - Intersegment Transfers		0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	13,304	(1,528)	32,786	45,649
Gas Segment [Member] | Utica Shale [Member]
Segment Reporting Information [Line Items]
Natural Gas, NGLs and Oil Sales	41,037		75,298	36,264
Revenue, Net	51,056	17,661	95,326	36,264
Gain (Loss) on Hedging Activity	10,019	0	20,028	0
Sales Revenue, Services, Other	0	0	0	0
Revenue from Purchased Oil and Gas	0	0	0	0
Freight-Outside	0	0	0	0
Segment Reporting - Intersegment Transfers		0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	9,923	(6,710)	13,179	(10,831)
Gas Segment [Member] | Coalbed Methane [Member]
Segment Reporting Information [Line Items]
Natural Gas, NGLs and Oil Sales	33,574	46,640	75,493	107,967
Revenue, Net	50,052	65,741	111,516	141,273
Gain (Loss) on Hedging Activity	16,478	18,752	35,599	32,410
Sales Revenue, Services, Other	0	0	0	0
Revenue from Purchased Oil and Gas	0	0	0	0
Freight-Outside	0	0	0	0
Segment Reporting - Intersegment Transfers		349	424	896
Income (Loss) from Continuing Operations before Income Taxes, Domestic	5,218	13,997	17,824	32,566
Gas Segment [Member] | Other Gas [Member]
Segment Reporting Information [Line Items]
Natural Gas, NGLs and Oil Sales	9,671	14,032	18,608	32,239
Revenue, Net	(257,147)	(4,141)	(262,226)	81,359
Gain (Loss) on Hedging Activity	(274,747)	(19,690)	(297,381)	44,006
Sales Revenue, Services, Other	0	0	0	0
Revenue from Purchased Oil and Gas	7,929	1,517	16,547	5,114
Freight-Outside	0	0	0	0
Segment Reporting - Intersegment Transfers		0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(322,944)	(897,131)	(381,829)	(882,765)
Other Segments [Member]
Segment Reporting Information [Line Items]
Revenue, Net	0	0	0	0
Sales-Outside	0	0	0	0
Gain (Loss) on Hedging Activity	0	0	0	0
Sales Revenue, Services, Other	0	0	0	0
Revenue from Purchased Oil and Gas	0	0	0	0
Freight-Outside	0	0	0	0
Segment Reporting - Intersegment Transfers		0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(62,280)	(58,610)	(112,277)	(188,140)
Total Assets	470,809	180,931	470,809	180,931
Depreciation, Depletion and Amortization	1	5	1	12
Segment Reporting - Capital Expenditures	618	3,822	1,899	6,758
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue, Net	0	(349)	(424)	(896)
Sales-Outside	0	0	0	0
Gain (Loss) on Hedging Activity	0	0	0	0
Sales Revenue, Services, Other	0	0	0	0
Revenue from Purchased Oil and Gas	0	0	0	0
Freight-Outside	0	0	0	0
Segment Reporting - Intersegment Transfers		(349)	(424)	(896)
Income (Loss) from Continuing Operations before Income Taxes, Domestic	0	(349)	(424)	(896)
Total Assets	122,419	998,441	122,419	998,441
Depreciation, Depletion and Amortization	0	0	0	0
Segment Reporting - Capital Expenditures	$ 0	$ 0	$ 0	$ 0

Reconciliation of Segment Infor

Reconciliation of Segment Information, Revenue and Other Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	$ 8,059	$ 6,337	$ 15,768	$ 19,467
Revenue, Net	247,154	506,575	739,070	1,228,929
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(333,364)	(878,892)	(399,292)	(840,679)
Depreciation, Depletion and Amortization	135,221	138,135	290,209	280,288
Segment Reporting - Capital Expenditures	37,593	329,878	115,257	616,484
Total Reportable Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(271,084)	(819,933)	(286,591)	(651,643)
Other Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	0	0	0	0
Revenue, Net	0	0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(62,280)	(58,610)	(112,277)	(188,140)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(14,853)	(12,087)	(14,985)	(18,762)
Depreciation, Depletion and Amortization	1	5	1	12
Segment Reporting - Capital Expenditures	618	3,822	1,899	6,758
Excludes Gas Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest Income (Expense), Net and Other Non-operating Activity	(47,427)	(46,506)	(97,292)	(101,627)
Asset Management Costs	0	(349)	424	(896)
Corporate Adjustments And Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gain (Loss) Estimates on Extinguishment of Debt	0	(17)	0		$ (67,751)
Intersegment Eliminations [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	0	0	0	0
Revenue, Net	0	(349)	(424)	(896)
Income (Loss) from Continuing Operations before Income Taxes, Domestic	0	(349)	(424)	(896)
Depreciation, Depletion and Amortization	0	0	0	0
Segment Reporting - Capital Expenditures	0	0	0	0
Gas Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	0	0	0	0
Revenue, Net	(23,518)	178,842	221,839	497,569
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(294,499)	(891,372)	(318,040)	(815,381)
Depreciation, Depletion and Amortization	105,151	89,850	210,866	177,294
Segment Reporting - Capital Expenditures	23,452	289,152	86,314	539,455
Coal Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	8,059	6,337	15,768	19,467
Revenue, Net	270,672	328,082	517,655	732,256
Income (Loss) from Continuing Operations before Income Taxes, Domestic	23,415	71,439	31,449	163,738
Depreciation, Depletion and Amortization	30,069	48,280	79,342	102,982
Segment Reporting - Capital Expenditures	13,523	36,904	27,044	70,271
Coalbed Methane [Member] | Gas Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	0	0	0	0
Revenue, Net	50,052	65,741	111,516	141,273
Income (Loss) from Continuing Operations before Income Taxes, Domestic	5,218	13,997	17,824	32,566
Utica Shale [Member] | Gas Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	0	0	0	0
Revenue, Net	51,056	17,661	95,326	36,264
Income (Loss) from Continuing Operations before Income Taxes, Domestic	9,923	(6,710)	13,179	(10,831)
Other Gas [Member] | Gas Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	0	0	0	0
Revenue, Net	(257,147)	(4,141)	(262,226)	81,359
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(322,944)	(897,131)	(381,829)	(882,765)
PA Operations [Member] | Coal Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	0	0	0	0
Revenue, Net	261,748	321,701	500,988	708,507
Income (Loss) from Continuing Operations before Income Taxes, Domestic	22,773	61,804	45,847	160,205
Depreciation, Depletion and Amortization	41,698	47,335	82,964	93,079
Segment Reporting - Capital Expenditures	13,099	35,415	26,003	67,961
Other Coal [Member] | Coal Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Sales Revenue, Services, Other	8,059	6,337	15,768	19,467
Revenue, Net	8,924	6,381	16,667	23,749
Income (Loss) from Continuing Operations before Income Taxes, Domestic	642	9,635	(14,398)	3,533
Depreciation, Depletion and Amortization	(11,629)	945	(3,622)	9,903
Segment Reporting - Capital Expenditures	$ 424	$ 1,489	$ 1,041	$ 2,310

Reconciliation of Segment Inf67

Reconciliation of Segment Information, Total Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Assets:
Total Assets	$ 9,784,757	$ 10,929,902	$ 10,965,861
Total Other Assets	649,341	455,762
Items excluded from segment assets:
Recoverable Income Taxes	0	$ 13,887
Total Reportable Segments [Member]
Assets:
Total Assets	9,191,529		9,786,489
Coal Segment [Member]
Assets:
Total Assets	2,680,177		3,024,789
Gas Segment [Member]
Assets:
Total Assets	6,511,352		6,761,700
Other Segments [Member]
Assets:
Total Assets	470,809		180,931
Total Other Assets	197,333		80,358
Items excluded from segment assets:
Cash and Other Investments	97,547
Excludes Gas Segment [Member]
Items excluded from segment assets:
Cash and Other Investments			9,942
Intersegment Eliminations [Member]
Assets:
Total Assets	122,419		998,441
Items excluded from segment assets:
Cash and Other Investments	0
Recoverable Income Taxes			21,211
Deferred Tax Assets, Net of Valuation Allowance	175,929		69,420
Disposal Group, Including Discontinued Operation, Assets	$ 122,419		$ 998,441

Guarantor Subsidiaries Financ68

Guarantor Subsidiaries Financial Information Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Cash and Cash Equivalents	$ 97,626	$ 72,574	$ 10,027	$ 176,985
Long-term Debt	2,720,426	2,705,718	2,508
Accounts and Notes Receivable:
Trade	153,977	151,383
Inventories	$ 60,818	66,792
Senior Notes 8 Percent Due April 2017 Par Value [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.25%
Senior notes due April 2020 at 8.25%
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.375%
Long-term Debt	$ 74,470	74,470
Senior Secured Notes Due March 2021 Par Value [Member] [Member] [Member]
Condensed Financial Statements, Captions [Line Items]
Long-term Debt	$ 1,855,175	1,855,617
Senior notes due March 2021 at 6.375%
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.875%
Long-term Debt	$ 20,611	20,611	$ 213
Senior Notes due April 2023 at 8.0% [Member]
Condensed Financial Statements, Captions [Line Items]
Long-term Debt	$ 493,891	$ 493,439
Senior Notes 8 Percent Due April 2023 Par Value [Member] [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.00%

Guarantor Subsidiaries Income S

Guarantor Subsidiaries Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Natural Gas, NGLs and Oil Sales	$ 167,933	$ 159,654	$ 349,188	$ 384,092
Unrealized Gain (Loss) on Commodity Derivatives	(199,380)	17,322	(144,320)	107,467
Coal Sales	251,166	318,995	477,330	705,021
Other Revenue, Net	8,059	6,337	15,768	19,467
Purchased Gas Sales	7,929	1,517	16,547	5,114
Freight-Outside	11,447	2,750	24,557	7,768
Other Income (including equity earnings)	33,032	34,687	81,163	71,208
Gain (Loss) on Sale of Assets	5,614	4,312	(1,662)	6,286
Total Revenue and Other Income	285,800	545,574	818,571	1,306,423
Oil and Gas Property, Lease Operating Expense	23,655	29,521	51,394	66,777
Gas Gathering, Transportation, Marketing and Processing Costs	90,983	83,196	184,957	158,717
Production Tax Expense	6,402	6,938	14,705	16,130
E&P Depreciation, Depletion, and Amortization	105,151	89,850	210,866	177,294
Exploration and Production Costs	2,823	2,324	5,231	4,364
Production Royalty Interests and Purchased Gas Costs	8,884	1,061	16,752	4,018
Other Expenses	30,656	20,622	58,350	39,718
Impairment of Oil and Gas Properties	0	828,905	0	828,905
Results of Operations, General and Administrative Related to Oil and Gas Producing Activities	16,175	21,070	33,738	42,894
Oil and Gas Production Expense	284,729	1,083,487	575,993	1,338,817
Operating Expenses	217,465	213,022	401,834	474,765
Coal Depreciation, Depletion, Amortization	30,069	48,280	79,342	102,982
Freight Expense	11,447	2,750	24,557	7,768
General and Administrative Expense	6,174	6,147	10,660	12,678
Other Cost and Expense, Operating	4,355	10,207	7,498	16,282
Cost of Coal Products and Services	269,510	280,406	523,891	614,475
Other Nonoperating Expense	17,497	14,045	20,686	24,420
Depreciation, Depletion and Amortization, Nonproduction	1	5	1	12
Gains (Losses) on Extinguishment of Debt	0	17	0	67,751
Interest Expense	47,427	46,506	97,292	101,627
Other General Expense	64,925	60,573	117,979	193,810
Total Costs	619,164	1,424,466	1,217,863	2,147,102
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(333,364)	(878,892)	(399,292)	(840,679)
Income Tax Expense (Benefit)	(100,354)	(301,669)	(123,571)	(316,652)
Income (Loss) from Continuing Operations Attributable to Parent	(233,010)	(577,223)	(275,721)	(524,027)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(235,639)	(26,078)	(289,391)	(244)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(468,649)	(603,301)	(565,112)	(524,271)
Net Income (Loss) Attributable to Noncontrolling Interest	1,179	0	2,293	0
Net Income (Loss) Attributable to Parent	(469,828)	(603,301)	(567,405)	(524,271)
Parent Issuer [Member]
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Natural Gas, NGLs and Oil Sales	0	0	0	0
Unrealized Gain (Loss) on Commodity Derivatives	0	0	0	0
Coal Sales	0	0	0	0
Other Revenue, Net	0	0	0	0
Purchased Gas Sales	0	0	0	0
Freight-Outside	0	0	0	0
Other Income (including equity earnings)	(431,586)	(565,923)	(498,206)	(403,747)
Gain (Loss) on Sale of Assets	0	0	0	0
Total Revenue and Other Income	(431,586)	(565,923)	(498,206)	(403,747)
Oil and Gas Property, Lease Operating Expense	0	0	0	0
Gas Gathering, Transportation, Marketing and Processing Costs	0	0	0	0
Production Tax Expense	0	0	0	0
E&P Depreciation, Depletion, and Amortization	0	0	0	0
Exploration and Production Costs	0	0	0	0
Production Royalty Interests and Purchased Gas Costs	0	0	0	0
Other Expenses	0	0	0	0
Impairment of Oil and Gas Properties		0		0
Results of Operations, General and Administrative Related to Oil and Gas Producing Activities	0	0	0	0
Oil and Gas Production Expense	0	0	0	0
Operating Expenses	932	1,946	1,935	3,594
Coal Depreciation, Depletion, Amortization	149	147	302	293
Freight Expense	0	0	0	0
General and Administrative Expense	0	0	0	0
Other Cost and Expense, Operating	0	0	0	0
Cost of Coal Products and Services	1,081	2,093	2,237	3,887
Other Nonoperating Expense	17,442	13,140	20,450	23,202
Depreciation, Depletion and Amortization, Nonproduction	0	0	0	2
Gains (Losses) on Extinguishment of Debt		17		67,751
Interest Expense	42,991	44,264	88,619	97,110
Other General Expense	60,433	57,421	109,069	188,065
Total Costs	61,514	59,514	111,306	191,952
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(493,100)	(625,437)	(609,512)	(595,699)
Income Tax Expense (Benefit)	(23,272)	(22,136)	(42,107)	(71,428)
Income (Loss) from Continuing Operations Attributable to Parent	(469,828)	(603,301)	(567,405)	(524,271)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(469,828)	(603,301)	(567,405)	(524,271)
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	(469,828)		(567,405)
CNX Gas Guarantor [Member]
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Natural Gas, NGLs and Oil Sales	167,933	160,004	349,611	384,989
Unrealized Gain (Loss) on Commodity Derivatives	(199,380)	17,322	(144,320)	107,467
Coal Sales	0	0	0	0
Other Revenue, Net	0	0	0	0
Purchased Gas Sales	7,929	1,517	16,547	5,114
Freight-Outside	0	0	0	0
Other Income (including equity earnings)	12,256	13,214	42,419	27,820
Gain (Loss) on Sale of Assets	2,247	1,545	(4,896)	2,186
Total Revenue and Other Income	(9,015)	193,602	259,361	527,576
Oil and Gas Property, Lease Operating Expense	23,655	29,521	51,394	66,777
Gas Gathering, Transportation, Marketing and Processing Costs	90,983	83,196	184,957	158,717
Production Tax Expense	6,402	6,938	14,705	16,130
E&P Depreciation, Depletion, and Amortization	105,151	89,850	210,866	177,294
Exploration and Production Costs	2,823	2,324	5,231	4,364
Production Royalty Interests and Purchased Gas Costs	8,884	1,061	16,752	4,018
Other Expenses	30,656	20,622	58,350	39,718
Impairment of Oil and Gas Properties		828,905		828,905
Results of Operations, General and Administrative Related to Oil and Gas Producing Activities	16,175	21,070	33,738	42,894
Oil and Gas Production Expense	284,729	1,083,487	575,993	1,338,817
Operating Expenses	0	0	0	0
Coal Depreciation, Depletion, Amortization	0	0	0	0
Freight Expense	0	0	0	0
General and Administrative Expense	0	0	0	0
Other Cost and Expense, Operating	0	0	0	0
Cost of Coal Products and Services	0	0	0	0
Other Nonoperating Expense	0	0	0	0
Depreciation, Depletion and Amortization, Nonproduction	0	0	0	0
Gains (Losses) on Extinguishment of Debt		0		0
Interest Expense	755	1,484	1,408	4,139
Other General Expense	755	1,484	1,408	4,139
Total Costs	285,484	1,084,971	577,401	1,342,956
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(294,499)	(891,369)	(318,040)	(815,380)
Income Tax Expense (Benefit)	(117,034)	(351,270)	(126,389)	(306,176)
Income (Loss) from Continuing Operations Attributable to Parent	(177,465)	(540,099)	(191,651)	(509,204)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(177,465)	(540,099)	(191,651)	(509,204)
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	(177,465)		(191,651)
Other Guarantors Subsidiaries [Member]
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Natural Gas, NGLs and Oil Sales	0	0	0	0
Unrealized Gain (Loss) on Commodity Derivatives	0	0	0	0
Coal Sales	201,054	255,196	381,985	564,335
Other Revenue, Net	8,059	6,337	15,768	19,467
Purchased Gas Sales	0	0	0	0
Freight-Outside	9,210	2,209	19,705	6,753
Other Income (including equity earnings)	19,352	21,588	37,321	43,217
Gain (Loss) on Sale of Assets	3,366	2,757	3,243	4,075
Total Revenue and Other Income	241,041	288,087	458,022	637,847
Oil and Gas Property, Lease Operating Expense	0	0	0	0
Gas Gathering, Transportation, Marketing and Processing Costs	0	0	0	0
Production Tax Expense	0	0	0	0
E&P Depreciation, Depletion, and Amortization	0	0	0	0
Exploration and Production Costs	0	0	0	0
Production Royalty Interests and Purchased Gas Costs	0	0	0	0
Other Expenses	0	0	0	0
Impairment of Oil and Gas Properties		0		0
Results of Operations, General and Administrative Related to Oil and Gas Producing Activities	0	0	0	0
Oil and Gas Production Expense	0	0	0	0
Operating Expenses	179,696	171,820	332,268	385,801
Coal Depreciation, Depletion, Amortization	21,581	38,666	62,448	84,073
Freight Expense	9,210	2,209	19,705	6,753
General and Administrative Expense	4,975	5,002	8,229	10,334
Other Cost and Expense, Operating	3,892	8,435	6,583	13,584
Cost of Coal Products and Services	219,354	226,132	429,233	500,545
Other Nonoperating Expense	47	680	206	766
Depreciation, Depletion and Amortization, Nonproduction	1	5	1	10
Gains (Losses) on Extinguishment of Debt		0		0
Interest Expense	1,590	1,626	3,180	3,186
Other General Expense	1,638	2,311	3,387	3,962
Total Costs	220,992	228,443	432,620	504,507
Income (Loss) from Continuing Operations before Income Taxes, Domestic	20,049	59,644	25,402	133,340
Income Tax Expense (Benefit)	39,955	71,081	44,936	59,531
Income (Loss) from Continuing Operations Attributable to Parent	(19,906)	(11,437)	(19,534)	73,809
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(19,906)	(11,437)	(19,534)	73,809
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	(19,906)		(19,534)
CNX Coal Resources LP [Member]
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Natural Gas, NGLs and Oil Sales	0	0	0	0
Unrealized Gain (Loss) on Commodity Derivatives	0	0	0	0
Coal Sales	50,112	63,799	95,345	140,686
Other Revenue, Net	0	0	0	0
Purchased Gas Sales	0	0	0	0
Freight-Outside	2,237	541	4,852	1,015
Other Income (including equity earnings)	1,423	135	1,424	351
Gain (Loss) on Sale of Assets	1	10	(9)	25
Total Revenue and Other Income	53,773	64,485	101,612	142,077
Oil and Gas Property, Lease Operating Expense	0	0	0	0
Gas Gathering, Transportation, Marketing and Processing Costs	0	0	0	0
Production Tax Expense	0	0	0	0
E&P Depreciation, Depletion, and Amortization	0	0	0	0
Exploration and Production Costs	0	0	0	0
Production Royalty Interests and Purchased Gas Costs	0	0	0	0
Other Expenses	0	0	0	0
Impairment of Oil and Gas Properties		0		0
Results of Operations, General and Administrative Related to Oil and Gas Producing Activities	0	0	0	0
Oil and Gas Production Expense	0	0	0	0
Operating Expenses	36,837	39,256	67,631	85,370
Coal Depreciation, Depletion, Amortization	8,339	9,467	16,592	18,616
Freight Expense	2,237	541	4,852	1,015
General and Administrative Expense	1,199	1,145	2,431	2,344
Other Cost and Expense, Operating	463	1,772	915	2,698
Cost of Coal Products and Services	49,075	52,181	92,421	110,043
Other Nonoperating Expense	0	0	0	0
Depreciation, Depletion and Amortization, Nonproduction	0	0	0	0
Gains (Losses) on Extinguishment of Debt		0		0
Interest Expense	2,091	2,328	4,085	4,709
Other General Expense	2,091	2,328	4,085	4,709
Total Costs	51,166	54,509	96,506	114,752
Income (Loss) from Continuing Operations before Income Taxes, Domestic	2,607	9,976	5,106	27,325
Income Tax Expense (Benefit)	0	0	0	0
Income (Loss) from Continuing Operations Attributable to Parent	2,607	9,976	5,106	27,325
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	2,607	9,976	5,106	27,325
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	2,607		5,106
Non-Guarantors [Member]
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Natural Gas, NGLs and Oil Sales	0	0	0	0
Unrealized Gain (Loss) on Commodity Derivatives	0	0	0	0
Coal Sales	0	0	0	0
Other Revenue, Net	0	0	0	0
Purchased Gas Sales	0	0	0	0
Freight-Outside	0	0	0	0
Other Income (including equity earnings)	0	1,976	0	4,276
Gain (Loss) on Sale of Assets	0	0	0	0
Total Revenue and Other Income	0	1,976	0	4,276
Oil and Gas Property, Lease Operating Expense	0	0	0	0
Gas Gathering, Transportation, Marketing and Processing Costs	0	0	0	0
Production Tax Expense	0	0	0	0
E&P Depreciation, Depletion, and Amortization	0	0	0	0
Exploration and Production Costs	0	(11)	0	(6)
Production Royalty Interests and Purchased Gas Costs	0	0	0	0
Other Expenses	0	0	0	0
Impairment of Oil and Gas Properties		0		0
Results of Operations, General and Administrative Related to Oil and Gas Producing Activities	0	0	0	0
Oil and Gas Production Expense	0	(11)	0	(6)
Operating Expenses	0	0	0	0
Coal Depreciation, Depletion, Amortization	0	0	0	0
Freight Expense	0	0	0	0
General and Administrative Expense	0	0	0	0
Other Cost and Expense, Operating	0	0	0	0
Cost of Coal Products and Services	0	0	0	0
Other Nonoperating Expense	8	225	30	452
Depreciation, Depletion and Amortization, Nonproduction	0	0	0	0
Gains (Losses) on Extinguishment of Debt		0		0
Interest Expense	0	30	0	76
Other General Expense	8	255	30	528
Total Costs	8	244	30	522
Income (Loss) from Continuing Operations before Income Taxes, Domestic	(8)	1,732	(30)	3,754
Income Tax Expense (Benefit)	(3)	656	(11)	1,421
Income (Loss) from Continuing Operations Attributable to Parent	(5)	1,076	(19)	2,333
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(235,639)	(26,078)	(289,391)	(244)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(235,644)	(25,002)	(289,410)	2,089
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	(235,644)		(289,410)
Consolidation, Eliminations [Member]
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Natural Gas, NGLs and Oil Sales	0	(350)	(423)	(897)
Unrealized Gain (Loss) on Commodity Derivatives	0	0	0	0
Coal Sales	0	0	0	0
Other Revenue, Net	0	0	0	0
Purchased Gas Sales	0	0	0	0
Freight-Outside	0	0	0	0
Other Income (including equity earnings)	431,587	563,697	498,205	399,291
Gain (Loss) on Sale of Assets	0	0	0	0
Total Revenue and Other Income	431,587	563,347	497,782	398,394
Oil and Gas Property, Lease Operating Expense	0	0	0	0
Gas Gathering, Transportation, Marketing and Processing Costs	0	0	0	0
Production Tax Expense	0	0	0	0
E&P Depreciation, Depletion, and Amortization	0	0	0	0
Exploration and Production Costs	0	11	0	6
Production Royalty Interests and Purchased Gas Costs	0	0	0	0
Other Expenses	0	0	0	0
Impairment of Oil and Gas Properties		0		0
Results of Operations, General and Administrative Related to Oil and Gas Producing Activities	0	0	0	0
Oil and Gas Production Expense	0	11	0	6
Operating Expenses	0	0	0	0
Coal Depreciation, Depletion, Amortization	0	0	0	0
Freight Expense	0	0	0	0
General and Administrative Expense	0	0	0	0
Other Cost and Expense, Operating	0	0	0	0
Cost of Coal Products and Services	0	0	0	0
Other Nonoperating Expense	0	0	0	0
Depreciation, Depletion and Amortization, Nonproduction	0	0	0	0
Gains (Losses) on Extinguishment of Debt		0		0
Interest Expense	0	(3,226)	0	(7,593)
Other General Expense	0	(3,226)	0	(7,593)
Total Costs	0	(3,215)	0	(7,587)
Income (Loss) from Continuing Operations before Income Taxes, Domestic	431,587	566,562	497,782	405,981
Income Tax Expense (Benefit)	0	0	0	0
Income (Loss) from Continuing Operations Attributable to Parent	431,587	566,562	497,782	405,981
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	431,587	$ 566,562	497,782	$ 405,981
Net Income (Loss) Attributable to Noncontrolling Interest	1,179		2,293
Net Income (Loss) Attributable to Parent	$ 430,408		$ 495,489

Guarantor Subsidiaries Balance

Guarantor Subsidiaries Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Schedule of Condensed Consolidating Balance Sheets [Line Items]
Other Receivables, Net, Current	$ 94,125	$ 121,735
Current Assets:
Cash and Cash Equivalents	97,626	72,574	$ 10,027	$ 176,985
Accounts and Notes Receivable:
Trade	153,977	151,383
Inventories	60,818	66,792
Recoverable Income Taxes	0	13,887
Prepaid Expenses	103,526	297,287
Disposal Group, Including Discontinued Operation, Assets, Current	16,168	81,106
Total Current Assets	526,240	804,764
Property, Plant and Equipment:
Property, Plant and Equipment	13,866,137	13,794,907
Less-Accumulated Depreciation, Depletion and Amortization	5,360,046	5,062,201
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	103,085	936,670
Total Property, Plant and Equipment-Net	8,609,176	9,669,376
Other Assets:
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	256,167	237,330
Other	214,079	214,388
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	3,166	4,044
Total Other Assets	649,341	455,762
Total Assets	9,784,757	10,929,902	10,965,861
Current Liabilities:
Accounts Payable	171,359	250,609
Accounts Payable (Recoverable)- Related Parties	0	0
Current Portion of Long-Term Debt	4,368	4,988
Other Accrued Liabilities	479,255	421,827
Disposal Group, Including Discontinued Operation, Liabilities, Current	24,938	51,514
Total Current Liabilities	1,151,379	1,680,938
Long-Term Debt:	2,755,752	2,748,205
Deferred Credits and Other Liabilities
Deferred Tax Liabilities, Net, Noncurrent	0	74,629
Postretirement Benefits Other Than Pensions	619,220	630,892
Pneumoconiosis	117,984	111,903
Mine Closing	214,344	227,339
Gas Well Closing	164,195	163,842
Workers' Compensation	68,687	69,812
Salary Retirement	87,321	91,596
Reclamation	246	25
Other Liabilities, Noncurrent	244,354	166,957
Disposal Group, Including Discontinued Operation, Other Liabilities	89,845	107,988
Total Deferred Credits and Other Liabilities	1,606,196	1,644,983
Total CONSOL Energy Inc. Stockholders' Equity	4,125,598	4,702,027
Stockholders' Equity Attributable to Noncontrolling Interest	145,832	153,749
TOTAL LIABILITIES AND EQUITY	9,784,757	10,929,902
Notes and Loans Payable, Current	466,000	952,000
Deferred Income Taxes	175,929	0
Accrued Income Taxes, Current	5,459	0
Consolidation, Eliminations [Member]
Schedule of Condensed Consolidating Balance Sheets [Line Items]
Other Receivables, Net, Current	0	0
Current Assets:
Cash and Cash Equivalents	0	0
Accounts and Notes Receivable:
Trade	0	0
Inventories	0	0
Recoverable Income Taxes		0
Prepaid Expenses	0	0
Disposal Group, Including Discontinued Operation, Assets, Current	0	0
Total Current Assets	0	0
Property, Plant and Equipment:
Property, Plant and Equipment	0	0
Less-Accumulated Depreciation, Depletion and Amortization	0	0
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	0	0
Total Property, Plant and Equipment-Net	0	0
Other Assets:
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(9,899,316)	(9,704,911)
Other	0	0
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	0	0
Total Other Assets	(9,899,316)	(9,704,911)
Total Assets	(9,899,316)	(9,704,911)
Current Liabilities:
Accounts Payable	8,947	13,817
Accounts Payable (Recoverable)- Related Parties	(8,947)	(13,817)
Current Portion of Long-Term Debt	0	0
Other Accrued Liabilities	0	0
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	0
Total Current Liabilities	0	0
Long-Term Debt:	0	0
Deferred Credits and Other Liabilities
Deferred Tax Liabilities, Net, Noncurrent		0
Postretirement Benefits Other Than Pensions	0	0
Pneumoconiosis	0	0
Mine Closing	0	0
Gas Well Closing	0	0
Workers' Compensation	0	0
Salary Retirement	0	0
Reclamation	0	0
Other Liabilities, Noncurrent	0	0
Disposal Group, Including Discontinued Operation, Other Liabilities	0	0
Total Deferred Credits and Other Liabilities	0	0
Total CONSOL Energy Inc. Stockholders' Equity	(10,045,148)	(9,858,660)
Stockholders' Equity Attributable to Noncontrolling Interest	145,832	153,749
TOTAL LIABILITIES AND EQUITY	(9,899,316)	(9,704,911)
Notes and Loans Payable, Current	0	0
Deferred Income Taxes	0
Accrued Income Taxes, Current	0
Parent Issuer [Member]
Schedule of Condensed Consolidating Balance Sheets [Line Items]
Other Receivables, Net, Current	35,224	18,933
Current Assets:
Cash and Cash Equivalents	87,638	64,995
Accounts and Notes Receivable:
Trade	0	0
Inventories	0	0
Recoverable Income Taxes		72,913
Prepaid Expenses	16,398	27,245
Disposal Group, Including Discontinued Operation, Assets, Current	0	0
Total Current Assets	139,260	184,086
Property, Plant and Equipment:
Property, Plant and Equipment	143,526	156,348
Less-Accumulated Depreciation, Depletion and Amortization	105,447	111,367
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	0	0
Total Property, Plant and Equipment-Net	38,079	44,981
Other Assets:
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	9,883,209	9,701,145
Other	63,051	53,529
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	0	0
Total Other Assets	10,180,832	9,754,674
Total Assets	10,358,171	9,983,741
Current Liabilities:
Accounts Payable	19,794	33,427
Accounts Payable (Recoverable)- Related Parties	3,175,959	1,786,710
Current Portion of Long-Term Debt	(2,732)	(2,777)
Other Accrued Liabilities	57,701	63,668
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	0
Total Current Liabilities	3,663,155	2,833,028
Long-Term Debt:	2,424,590	2,423,247
Deferred Credits and Other Liabilities
Deferred Tax Liabilities, Net, Noncurrent		(122,547)
Postretirement Benefits Other Than Pensions	0	0
Pneumoconiosis	0	0
Mine Closing	0	0
Gas Well Closing	0	0
Workers' Compensation	0	0
Salary Retirement	87,321	91,596
Reclamation	0	0
Other Liabilities, Noncurrent	57,507	56,390
Disposal Group, Including Discontinued Operation, Other Liabilities	0	0
Total Deferred Credits and Other Liabilities	144,828	25,439
Total CONSOL Energy Inc. Stockholders' Equity	4,125,598	4,702,027
Stockholders' Equity Attributable to Noncontrolling Interest	0	0
TOTAL LIABILITIES AND EQUITY	10,358,171	9,983,741
Notes and Loans Payable, Current	466,000	952,000
Deferred Income Taxes	234,572
Accrued Income Taxes, Current	(53,567)
CNX Gas Guarantor [Member]
Schedule of Condensed Consolidating Balance Sheets [Line Items]
Other Receivables, Net, Current	54,548	99,001
Current Assets:
Cash and Cash Equivalents	75	75
Accounts and Notes Receivable:
Trade	65,067	72,664
Inventories	12,079	13,815
Recoverable Income Taxes		(59,026)
Prepaid Expenses	70,994	244,680
Disposal Group, Including Discontinued Operation, Assets, Current	0	0
Total Current Assets	202,763	371,209
Property, Plant and Equipment:
Property, Plant and Equipment	8,933,954	8,875,027
Less-Accumulated Depreciation, Depletion and Amortization	2,902,470	2,695,674
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	0	0
Total Property, Plant and Equipment-Net	6,031,484	6,179,353
Other Assets:
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	252,517	234,803
Other	24,588	47,892
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	0	0
Total Other Assets	218,462	282,695
Total Assets	6,452,709	6,833,257
Current Liabilities:
Accounts Payable	85,410	149,930
Accounts Payable (Recoverable)- Related Parties	1,426,279	1,521,444
Current Portion of Long-Term Debt	6,244	6,798
Other Accrued Liabilities	160,024	102,753
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	0
Total Current Liabilities	1,736,983	1,780,925
Long-Term Debt:	30,110	33,141
Deferred Credits and Other Liabilities
Deferred Tax Liabilities, Net, Noncurrent		197,176
Postretirement Benefits Other Than Pensions	0	0
Pneumoconiosis	0	0
Mine Closing	0	0
Gas Well Closing	134,790	135,174
Workers' Compensation	0	0
Salary Retirement	0	0
Reclamation	0	0
Other Liabilities, Noncurrent	182,240	105,588
Disposal Group, Including Discontinued Operation, Other Liabilities	0	0
Total Deferred Credits and Other Liabilities	317,030	437,938
Total CONSOL Energy Inc. Stockholders' Equity	4,368,586	4,581,253
Stockholders' Equity Attributable to Noncontrolling Interest	0	0
TOTAL LIABILITIES AND EQUITY	6,452,709	6,833,257
Notes and Loans Payable, Current	0	0
Deferred Income Taxes	(58,643)
Accrued Income Taxes, Current	59,026
Other Guarantors Subsidiaries [Member]
Schedule of Condensed Consolidating Balance Sheets [Line Items]
Other Receivables, Net, Current	4,261	3,424
Current Assets:
Cash and Cash Equivalents	137	0
Accounts and Notes Receivable:
Trade	70,762	63,201
Inventories	39,846	43,186
Recoverable Income Taxes		0
Prepaid Expenses	13,452	21,282
Disposal Group, Including Discontinued Operation, Assets, Current	0	0
Total Current Assets	128,458	131,093
Property, Plant and Equipment:
Property, Plant and Equipment	4,092,675	4,071,050
Less-Accumulated Depreciation, Depletion and Amortization	2,015,107	1,934,431
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	0	0
Total Property, Plant and Equipment-Net	2,077,568	2,136,619
Other Assets:
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	19,757	6,293
Other	109,255	98,888
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	0	0
Total Other Assets	129,012	105,181
Total Assets	2,335,038	2,372,893
Current Liabilities:
Accounts Payable	45,968	39,412
Accounts Payable (Recoverable)- Related Parties	(4,384,694)	(3,088,340)
Current Portion of Long-Term Debt	797	918
Other Accrued Liabilities	229,257	225,477
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	0
Total Current Liabilities	(4,108,672)	(2,822,533)
Long-Term Debt:	105,293	105,770
Deferred Credits and Other Liabilities
Deferred Tax Liabilities, Net, Noncurrent		0
Postretirement Benefits Other Than Pensions	619,220	630,892
Pneumoconiosis	116,118	110,356
Mine Closing	207,148	220,617
Gas Well Closing	29,326	28,591
Workers' Compensation	66,267	67,469
Salary Retirement	0	0
Reclamation	246	25
Other Liabilities, Noncurrent	4,071	4,408
Disposal Group, Including Discontinued Operation, Other Liabilities	0	0
Total Deferred Credits and Other Liabilities	1,042,396	1,062,358
Total CONSOL Energy Inc. Stockholders' Equity	5,296,021	4,027,298
Stockholders' Equity Attributable to Noncontrolling Interest	0	0
TOTAL LIABILITIES AND EQUITY	2,335,038	2,372,893
Notes and Loans Payable, Current	0	0
Deferred Income Taxes	0
Accrued Income Taxes, Current	0
CNX Coal Resources LP [Member]
Schedule of Condensed Consolidating Balance Sheets [Line Items]
Other Receivables, Net, Current	92	377
Current Assets:
Cash and Cash Equivalents	8,961	6,531
Accounts and Notes Receivable:
Trade	18,148	15,518
Inventories	8,893	9,791
Recoverable Income Taxes		0
Prepaid Expenses	2,682	4,080
Disposal Group, Including Discontinued Operation, Assets, Current	0	0
Total Current Assets	38,776	36,297
Property, Plant and Equipment:
Property, Plant and Equipment	695,982	692,482
Less-Accumulated Depreciation, Depletion and Amortization	337,022	320,729
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment		0	$ 0
Total Property, Plant and Equipment-Net	358,960	371,753
Other Assets:
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Other	17,185	14,079
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	0	0
Total Other Assets	17,185	14,079
Total Assets	414,921	422,129
Current Liabilities:
Accounts Payable	11,240	14,023
Accounts Payable (Recoverable)- Related Parties	981	3,452
Current Portion of Long-Term Debt	59	49
Other Accrued Liabilities	32,273	29,929
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	0
Total Current Liabilities	44,553	47,453
Long-Term Debt:	194,505	181,046
Deferred Credits and Other Liabilities
Deferred Tax Liabilities, Net, Noncurrent		0
Postretirement Benefits Other Than Pensions	0	0
Pneumoconiosis	1,866	1,547
Mine Closing	7,196	6,722
Gas Well Closing	79	77
Workers' Compensation	2,420	2,343
Salary Retirement	0	0
Reclamation	0	0
Other Liabilities, Noncurrent	536	571
Disposal Group, Including Discontinued Operation, Other Liabilities	0	0
Total Deferred Credits and Other Liabilities	12,097	11,260
Total CONSOL Energy Inc. Stockholders' Equity	163,766	182,370
Stockholders' Equity Attributable to Noncontrolling Interest	0	0
TOTAL LIABILITIES AND EQUITY	414,921	422,129
Notes and Loans Payable, Current	0	0
Deferred Income Taxes	0
Accrued Income Taxes, Current	0
Non-Guarantors [Member]
Schedule of Condensed Consolidating Balance Sheets [Line Items]
Other Receivables, Net, Current	0	0
Current Assets:
Cash and Cash Equivalents	815	973
Accounts and Notes Receivable:
Trade	0	0
Inventories	0	0
Recoverable Income Taxes		0
Prepaid Expenses	0	0
Disposal Group, Including Discontinued Operation, Assets, Current	16,168	81,106
Total Current Assets	16,983	82,079
Property, Plant and Equipment:
Property, Plant and Equipment	0	0
Less-Accumulated Depreciation, Depletion and Amortization	0	0
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	103,085	936,670
Total Property, Plant and Equipment-Net	103,085	936,670
Other Assets:
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Other	0	0
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	3,166	4,044
Total Other Assets	3,166	4,044
Total Assets	123,234	1,022,793
Current Liabilities:
Accounts Payable	0	0
Accounts Payable (Recoverable)- Related Parties	(209,578)	(209,449)
Current Portion of Long-Term Debt	0	0
Other Accrued Liabilities	0	0
Disposal Group, Including Discontinued Operation, Liabilities, Current	24,938	51,514
Total Current Liabilities	(184,640)	(157,935)
Long-Term Debt:	1,254	5,001
Deferred Credits and Other Liabilities
Deferred Tax Liabilities, Net, Noncurrent		0
Postretirement Benefits Other Than Pensions	0	0
Pneumoconiosis	0	0
Mine Closing	0	0
Gas Well Closing	0	0
Workers' Compensation	0	0
Salary Retirement	0	0
Reclamation	0	0
Other Liabilities, Noncurrent	0	0
Disposal Group, Including Discontinued Operation, Other Liabilities	89,845	107,988
Total Deferred Credits and Other Liabilities	89,845	107,988
Total CONSOL Energy Inc. Stockholders' Equity	216,775	1,067,739
Stockholders' Equity Attributable to Noncontrolling Interest	0	0
TOTAL LIABILITIES AND EQUITY	123,234	1,022,793
Notes and Loans Payable, Current	0	$ 0
Deferred Income Taxes	0
Accrued Income Taxes, Current	$ 0

Guarantor Subsidiaries, Condens

Guarantor Subsidiaries, Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		$ 206,308	$ 247,703
Cash Provided by (Used in) Operating Activities, Discontinued Operations		17,433	46,512
Net Cash Provided by Operating Activities		223,741	294,215
Investing Activities:
Capital Expenditures		(115,257)	(616,484)
Proceeds from Sale of Productive Assets		18,284	6,931
Payments for (Proceeds from) Businesses and Interest in Affiliates		(5,578)	(43,761)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations		(102,551)	(653,314)
Cash Provided by (Used in) Investing Activities, Discontinued Operations		394,511	(19,301)
Financing Activities:
Repayments of Other Debt		(4,459)	(4,029)
(Payments on) Proceeds from Short-Term Borrowings		(486,000)	1,058,000
Tax Benefit from Stock-Based Compensation		0	198
Repayments of Secured Debt			38,669
Payments of Dividends		(2,294)	(28,711)
Proceeds from Issuance of Common Stock		4	8,288
Net Cash Provided by (Used in) Financing Activities, Continuing Operations		(490,574)	211,525
Proceeds from Sale of Treasury Stock			(71,674)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	$ (83)	(75)	(83)
Proceeds from Issuance of Long-Term Notes		0	492,760
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		(10,825)	0
Incentive Distribution, Distribution			0
Net Cash Provided by (Used in) Investing Activities		291,960	(672,615)
Payments On Long Term Notes Including Redemption Premium		0	(1,263,719)
Net Proceeds from Revolver - MLP		13,000	0
Payments of Debt Issuance Costs			(18,257)
Net Cash (Used in) Provided by Financing Activities	211,442	(490,649)	211,442
Parent Issuer [Member]
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		513,635	(362,496)
Cash Provided by (Used in) Operating Activities, Discontinued Operations		0	0
Net Cash Provided by Operating Activities		513,635	(362,496)
Investing Activities:
Capital Expenditures		(1,899)	(6,758)
Proceeds from Sale of Productive Assets		0	0
Payments for (Proceeds from) Businesses and Interest in Affiliates		0	0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations		(1,899)	(6,758)
Cash Provided by (Used in) Investing Activities, Discontinued Operations		0	0
Financing Activities:
Repayments of Other Debt		(803)	(788)
(Payments on) Proceeds from Short-Term Borrowings		(486,000)	1,058,000
Tax Benefit from Stock-Based Compensation			198
Repayments of Secured Debt			38,669
Payments of Dividends		(2,294)	(28,711)
Proceeds from Issuance of Common Stock		4	8,288
Net Cash Provided by (Used in) Financing Activities, Continuing Operations		(489,093)	233,023
Proceeds from Sale of Treasury Stock			(71,674)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	0	0
Proceeds from Issuance of Long-Term Notes			492,760
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		0
Incentive Distribution, Distribution			0
Net Cash Provided by (Used in) Investing Activities		(1,899)	(6,758)
Payments On Long Term Notes Including Redemption Premium			(1,263,719)
Net Proceeds from Revolver - MLP		0
Payments of Debt Issuance Costs			0
Net Cash (Used in) Provided by Financing Activities	233,023	(489,093)
CNX Gas Guarantor [Member]
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		77,812	475,631
Cash Provided by (Used in) Operating Activities, Discontinued Operations		0	0
Net Cash Provided by Operating Activities		77,812	475,631
Investing Activities:
Capital Expenditures		(86,314)	(539,455)
Proceeds from Sale of Productive Assets		13,700	2,607
Payments for (Proceeds from) Businesses and Interest in Affiliates		(2,145)	(36,201)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations		(74,759)	(573,049)
Cash Provided by (Used in) Investing Activities, Discontinued Operations		0	0
Financing Activities:
Repayments of Other Debt		(3,053)	(3,180)
(Payments on) Proceeds from Short-Term Borrowings		0	70,000
Tax Benefit from Stock-Based Compensation			0
Repayments of Secured Debt			0
Payments of Dividends		0	0
Proceeds from Issuance of Common Stock		0	0
Net Cash Provided by (Used in) Financing Activities, Continuing Operations		(3,053)	66,820
Proceeds from Sale of Treasury Stock			0
Cash Provided by (Used in) Financing Activities, Discontinued Operations		0	0
Proceeds from Issuance of Long-Term Notes			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		0
Incentive Distribution, Distribution			0
Net Cash Provided by (Used in) Investing Activities		(74,759)	(573,049)
Payments On Long Term Notes Including Redemption Premium			0
Net Proceeds from Revolver - MLP		0
Payments of Debt Issuance Costs			0
Net Cash (Used in) Provided by Financing Activities		(3,053)	66,820
Other Guarantors Subsidiaries [Member]
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		21,417	83,091
Cash Provided by (Used in) Operating Activities, Discontinued Operations		0	0
Net Cash Provided by Operating Activities		21,417	83,091
Investing Activities:
Capital Expenditures		(21,842)	(56,678)
Proceeds from Sale of Productive Assets		4,569	4,279
Payments for (Proceeds from) Businesses and Interest in Affiliates		(3,433)	(7,560)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations		(20,706)	(59,959)
Cash Provided by (Used in) Investing Activities, Discontinued Operations		0	0
Financing Activities:
Repayments of Other Debt		(574)	(4,875)
(Payments on) Proceeds from Short-Term Borrowings		0	0
Tax Benefit from Stock-Based Compensation			0
Repayments of Secured Debt			0
Payments of Dividends		0	0
Proceeds from Issuance of Common Stock		0	0
Net Cash Provided by (Used in) Financing Activities, Continuing Operations		(574)	(23,132)
Proceeds from Sale of Treasury Stock			0
Cash Provided by (Used in) Financing Activities, Discontinued Operations	0	0
Proceeds from Issuance of Long-Term Notes			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		0
Incentive Distribution, Distribution			0
Net Cash Provided by (Used in) Investing Activities		(20,706)	(59,959)
Payments On Long Term Notes Including Redemption Premium			0
Net Proceeds from Revolver - MLP		0
Payments of Debt Issuance Costs			(18,257)
Net Cash (Used in) Provided by Financing Activities	(23,132)	(574)
CNX Coal Resources LP [Member]
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		18,934	38,538
Cash Provided by (Used in) Operating Activities, Discontinued Operations		0	0
Net Cash Provided by Operating Activities		18,934	38,538
Investing Activities:
Capital Expenditures		(5,202)	(13,593)
Proceeds from Sale of Productive Assets		15	45
Payments for (Proceeds from) Businesses and Interest in Affiliates		0	0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations		(5,187)	(13,548)
Cash Provided by (Used in) Investing Activities, Discontinued Operations		0	0
Financing Activities:
Repayments of Other Debt		(29)	4,814
(Payments on) Proceeds from Short-Term Borrowings		0	0
Tax Benefit from Stock-Based Compensation			0
Repayments of Secured Debt			0
Payments of Dividends		0	0
Proceeds from Issuance of Common Stock		0	0
Net Cash Provided by (Used in) Financing Activities, Continuing Operations		(11,317)	(24,990)
Proceeds from Sale of Treasury Stock			0
Cash Provided by (Used in) Financing Activities, Discontinued Operations		0	0
Proceeds from Issuance of Long-Term Notes			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		(24,288)
Incentive Distribution, Distribution			(29,804)
Net Cash Provided by (Used in) Investing Activities		(5,187)	(13,548)
Payments On Long Term Notes Including Redemption Premium			0
Net Proceeds from Revolver - MLP		13,000
Payments of Debt Issuance Costs			0
Net Cash (Used in) Provided by Financing Activities		(11,317)	(24,990)
Non-Guarantors [Member]
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		(412,027)	(27,257)
Cash Provided by (Used in) Operating Activities, Discontinued Operations		17,433	46,512
Net Cash Provided by Operating Activities		(394,594)	19,255
Investing Activities:
Capital Expenditures		0	0
Proceeds from Sale of Productive Assets		0	0
Payments for (Proceeds from) Businesses and Interest in Affiliates		0	0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations		0	0
Cash Provided by (Used in) Investing Activities, Discontinued Operations		394,511	(19,301)
Financing Activities:
Repayments of Other Debt		0	0
(Payments on) Proceeds from Short-Term Borrowings		0	0
Tax Benefit from Stock-Based Compensation			0
Repayments of Secured Debt			0
Payments of Dividends		0	0
Proceeds from Issuance of Common Stock		0	0
Net Cash Provided by (Used in) Financing Activities, Continuing Operations		0	0
Proceeds from Sale of Treasury Stock			0
Cash Provided by (Used in) Financing Activities, Discontinued Operations	(83)	(75)
Proceeds from Issuance of Long-Term Notes			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		0
Incentive Distribution, Distribution			0
Net Cash Provided by (Used in) Investing Activities		394,511	(19,301)
Payments On Long Term Notes Including Redemption Premium			0
Net Proceeds from Revolver - MLP		0
Payments of Debt Issuance Costs			0
Net Cash (Used in) Provided by Financing Activities	(83)	(75)
Consolidation, Eliminations [Member]
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		(13,463)	40,196
Cash Provided by (Used in) Operating Activities, Discontinued Operations		0	0
Net Cash Provided by Operating Activities		(13,463)	40,196
Investing Activities:
Capital Expenditures		0	0
Proceeds from Sale of Productive Assets		0	0
Payments for (Proceeds from) Businesses and Interest in Affiliates		0	0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations		0	0
Cash Provided by (Used in) Investing Activities, Discontinued Operations		0	0
Financing Activities:
Repayments of Other Debt		0	0
(Payments on) Proceeds from Short-Term Borrowings		0	(70,000)
Tax Benefit from Stock-Based Compensation			0
Repayments of Secured Debt			0
Payments of Dividends		0	0
Proceeds from Issuance of Common Stock		0	0
Net Cash Provided by (Used in) Financing Activities, Continuing Operations		13,463	(40,196)
Proceeds from Sale of Treasury Stock			0
Cash Provided by (Used in) Financing Activities, Discontinued Operations	0	0
Proceeds from Issuance of Long-Term Notes			0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		13,463
Incentive Distribution, Distribution			29,804
Net Cash Provided by (Used in) Investing Activities		0	0
Payments On Long Term Notes Including Redemption Premium			0
Net Proceeds from Revolver - MLP		0
Payments of Debt Issuance Costs			$ 0
Net Cash (Used in) Provided by Financing Activities	$ (40,196)	$ 13,463

Guarantor Subsidiaries Financ72

Guarantor Subsidiaries Financial Information Gurantor Subsidiaries Statement of Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Condensed Financial Statements, Captions [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ (11,203)	$ (20,804)	$ (21,017)	$ (40,118)
Other Comprehensive Income (Loss), Net of Tax	(3,158)	(11,337)	(15,456)	(30,800)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(468,649)	(603,301)	(565,112)	(524,271)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	8,045	9,467	5,561	9,318
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(471,807)	(614,638)	(580,568)	(555,071)
Net Income (Loss) Attributable to Noncontrolling Interest	1,179	0	2,293	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(472,986)	(614,638)	(582,861)	(555,071)
Parent Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(11,203)		(21,017)	(40,118)
Other Comprehensive Income (Loss), Net of Tax	(3,158)	(11,337)	(15,456)	(30,800)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(469,828)	(603,301)	(567,405)	(524,271)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	8,045	9,467	5,561	9,318
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(472,986)		(582,861)
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(472,986)	(614,638)	(582,861)	(555,071)
CNX Gas Guarantor [Member]
Condensed Financial Statements, Captions [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(11,203)	(20,804)	(21,017)	(40,118)
Other Comprehensive Income (Loss), Net of Tax	(11,203)	(20,804)	(21,017)	(40,118)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(177,465)	(540,099)	(191,651)	(509,204)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	0	0	0	0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(188,668)		(212,668)
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(188,668)	(560,903)	(212,668)	(549,322)
Other Guarantors Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	8,062	9,854	5,598	10,707
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(19,906)	(11,437)	(19,534)	73,809
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	8,062	9,854	5,598	10,707
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(11,844)		(13,936)
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(11,844)	(1,583)	(13,936)	84,516
CNX Coal Resources LP [Member]
Condensed Financial Statements, Captions [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	(17)	(387)	(37)	(1,389)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	2,607	9,976	5,106	27,325
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(17)	(387)	(37)	(1,389)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	2,590		5,069
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	2,590	9,589	5,069	25,936
Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	0	0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(235,644)	(25,002)	(289,410)	2,089
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	0	0	0	0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(235,644)		(289,410)
Net Income (Loss) Attributable to Noncontrolling Interest			0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(235,644)	(25,002)	(289,410)	2,089
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	11,203	20,804	21,017	40,118
Other Comprehensive Income (Loss), Net of Tax	3,158	11,337	15,456	30,800
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	431,587	566,562	497,782	405,981
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(8,045)	(9,467)	(5,561)	(9,318)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	434,745		513,238
Net Income (Loss) Attributable to Noncontrolling Interest	1,179		2,293
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 433,566	$ 577,899	$ 510,945	$ 436,781

Related Party Transaction (Deta

Related Party Transaction (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Related Party Transaction [Line Items]
Other General Expense	$ 64,925	$ 60,573	$ 117,979	$ 193,810
Income (Loss) from Equity Method Investments			25,884	23,250
Related Party Transaction, Expenses from Transactions with Related Party	29,976	24,926	$ 61,993	47,286
Partners' Capital Account, Units, Sold in Public Offering			5,000,000
Initial Public Offering Share Price			$ 15
Initial Public Offering overallotment			561,067
Debt Instrument, Face Amount	400,000		$ 400,000
Long-term Debt	2,720,426	2,508	2,720,426	2,508	$ 2,705,718
Financing Related Fees		207	3,000	403
Long-term debt, net of fees	197,000		197,000
Net Proceeds from Initial Public Offering			342,711
Accounts Payable, Related Parties	981,000		981,000		3,452,000
CONE Gathering [Member]
Related Party Transaction [Line Items]
Limited Partners' Contributed Capital	94	8,387	94	8,387
Income (Loss) from Equity Method Investments	753	4,538	7,146	7,676
CONE Midstream [Member]
Related Party Transaction [Line Items]
Limited Partners' Contributed Capital	2,051	42,750	2,051	42,750
Distribution Made to Limited Partner, Cash Distributions Paid			9,192	8,162
Income (Loss) from Equity Method Investments	(7,452)	(4,843)	(15,410)	(9,361)
CONE [Member]
Related Party Transaction [Line Items]
Due from Related Parties	7,542		7,542		$ 12,216
CNX Coal Resources LP [Member]
Related Party Transaction [Line Items]
Proceeds from Issuance Initial Public Offering			75,000
Long-term Debt	200,000		200,000
Operating and Other Costs [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	1,016	1,155	2,029	1,795
Selling and Direct Administrative Expenses [Member] [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 962	$ 1,897	$ 1,896	$ 3,525

Stock Repurchase Stock Repurcha

Stock Repurchase Stock Repurchase Details (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Equity [Abstract]
Stock Repurchase Program, Authorized Amount		$ 250,000
Stock Repurchased During Period, Shares	2,213,100
Treasury Stock Acquired, Average Cost Per Share	$ 32.37

Subsequent Event (Details)

Subsequent Event (Details) $ / shares in Units, T in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2016USD ($)$ / shares	Jun. 30, 2016USD ($)T
Subsequent Events [Abstract]
Production tons | T		2,100
Coal Reserves | T		114,000
Mine Reclamation and Closing Liability, Noncurrent		$ 102,803
Cash Paid to Close Deal		27,000
Cash Installment to be paid		$ 17,200
Gain (Loss) on Sale of Assets and Asset Impairment Charges	$ 44,200
Distribution Made to Limited Partner, Distributions Paid, Per Unit | $ / shares	$ 0.5125

Uncategorized Items - cnx-20160

Label	Element	Value
Cash and Cash Equivalents, Period Increase (Decrease)	us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease	$ (166,958,000)