Segment Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Schedule of Industry Segment Results

Industry segment results for the year ended December 31, 2017 are:

	PAMC		Other			Adjustments and Eliminations		Consolidated
Coal Revenue	$	1,187,654	$	—		$	—	$	1,187,654	(A)
Terminal Revenue	—		60,066			—		60,066
Freight Revenue	73,692		—			—		73,692
Total Revenue and Freight	$	1,261,346	$	60,066		$	—	$	1,321,412
Earnings (Loss) Before Income Tax	$	189,162	$	(19,365	)	$	—	$	169,797
Segment Assets	$	1,971,268	$	735,831		$	—	$	2,707,099
Depreciation, Depletion and Amortization	$	166,628	$	5,374		$	—	$	172,002
Capital Expenditures	$	77,981	$	3,432		$	—	$	81,413

(A) Included in the PAMC segment are sales of $222,354 to Duke Energy and sales of $145,248 to Xcoal, each comprising over 10% of sales.

Industry segment results for the year ended December 31, 2016 are:

	PAMC		Other			Adjustments and Eliminations		Consolidated
Coal Revenue	$	1,065,582	$	—		$	—	$	1,065,582	(B)
Terminal Revenue	—		31,464			—		31,464
Freight Revenue	46,468		—			—		46,468
Total Revenue and Freight	$	1,112,050	$	31,464		$	—	$	1,143,514
Earnings (Loss) Before Income Tax	$	130,708	$	(65,693	)	$	—	$	65,015
Segment Assets	$	1,982,206	$	705,228		$	—	$	2,687,434
Depreciation, Depletion and Amortization	$	168,195	$	9,927		$	—	$	178,122
Capital Expenditures	$	50,809	$	2,791		$	—	$	53,600

(B) Included in the PAMC segment are sales of $160,818 to Duke Energy and sales of $116,849 to GenOn Energy Management, LLC, each comprising over 10% of sales.

Industry segment results for the year ended December 31, 2015 are:

	PAMC		Other		Adjustments and Eliminations		Consolidated
Coal Revenue	$	1,289,036	$	—	$	—	$	1,289,036	(C)
Terminal Revenue	—		30,967		—		30,967
Freight Revenue	20,499		—		—		20,499
Total Revenue and Freight	$	1,309,535	$	30,967	$	—	$	1,340,502
Earnings Before Income Tax	$	404,994	$	38,032	$	—	$	443,026
Segment Assets	$	2,076,301	$	791,432	$	—	$	2,867,733
Depreciation, Depletion and Amortization	$	176,864	$	18,473	$	—	$	195,337
Capital Expenditures	$	136,291	$	6,762	$	—	$	143,053

(C) Included in the PAMC segment are sales of $242,020 to Duke Energy, sales of $157,174 to GenOn Energy Management, LLC, and sales of $150,199 to Xcoal, each comprising over 10% of sales.

Schedule of Revenue and Other Income

Revenue and Other Income:

	For the Years Ended December 31,
	2017		2016		2015
Total Segment Revenue and Freight from External Customers	$	1,321,412	$	1,143,514	$	1,340,502
Other Income not Allocated to Segments (Note 3)	73,279		82,120		68,193
Gain on Sale of Assets	17,212		5,228		13,025
Total Consolidated Revenue and Other Income	$	1,411,903	$	1,230,862	$	1,421,720

Schedule of Reconciliation of Total Assets

Total Assets:

	December 31,
	2017		2016
Segment assets for total reportable business segments	$	1,971,268	$	1,982,206
Segment assets for all other business segments	508,334		520,586
Items excluded from segment assets:
Cash and other investments	152,432		63
Deferred tax assets	75,065		184,579
Total Consolidated Assets	$	2,707,099	$	2,687,434

Schedule of Property, Plant and Equipment by Geographical Location

CONSOL Energy's Property, Plant and Equipment by geographical location:

	December 31,
	2017		2016		2015
United States	$	2,111,273	$	2,169,246	$	2,314,157
Canada	11,024		11,024		11,024
Total Property, Plant and Equipment, net	$	2,122,297	$	2,180,270	$	2,325,181