Acquisitions and Dispositions	12 Months Ended
Dec. 31, 2016
ACQUISITIONS AND DISPOSITIONS: [Abstract]
Acquisitions and Dispositions:	ACQUISITIONS AND DISPOSITIONS: In September 2015, CONSOL Energy sold its 49% interest in Western Allegheny Energy (WAE), a joint venture with Rosebud Mining Company engaged in coal mining activities in Pennsylvania. At closing, CONSOL Energy received $76,297 in cash and a $2,136 reduction in certain liabilities. During the third quarter of 2015, CONSOL Energy also received a cash distribution of $10,780 from WAE. The net gain on the sale was $48,468 and was included in the Gain on Sale of Assets in the Consolidated Statements of Income. In December 2014, CNX Gas Company LLC (CNX Gas Company), 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 was to be paid by CONSOL Energy over a five year period, as drilling occurs, in addition to royalties. CONSOL Energy made payments of $9,000 to CEVCO in the year ended December 31, 2016, while $50,969 of payments were made in the year ended December 31, 2015. At December 31, 2016, the amounts recorded in Other Current Liabilities and Other Long-Term Liabilities both on a discounted basis were $3,947 and $26,461, respectively. At December 31, 2015, the amounts recorded in Other Current Liabilities and Other Long-Term Liabilities on a discounted basis were $8,349 and $29,333, respectively. In December 2014, CONSOL Energy completed the sale of its industrial supplies subsidiary to an unrelated third party for expected net proceeds of approximately $51,000, of which $44,035 was received and included in cash flows from investing activities during the year ended December 31, 2014. In connection with the sale, CONSOL Energy signed a supply agreement under which, among other things, it will continue to purchase certain goods exclusively from the new entity for a period of at least three years. CONSOL Energy recorded a net loss on the sale of $30,845, which was included in Gain on Sale of Assets in the Consolidated Statements of Income. In December 2015, there was $6,258 of expense related to the settlement of working capital adjustments and other matters in conjunction with the sale, which was included in Other Costs - Miscellaneous Operating Costs in the Consolidated Statements of Income.

ACQUISITIONS AND DISPOSITIONS:

In September 2015, CONSOL Energy sold its 49% interest in Western Allegheny Energy (WAE), a joint venture with Rosebud Mining Company engaged in coal mining activities in Pennsylvania. At closing, CONSOL Energy received $76,297 in cash and a $2,136 reduction in certain liabilities. During the third quarter of 2015, CONSOL Energy also received a cash distribution of $10,780 from WAE. The net gain on the sale was $48,468 and was included in the Gain on Sale of Assets in the Consolidated Statements of Income.

In December 2014, CNX Gas Company LLC (CNX Gas Company), 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 was to be paid by CONSOL Energy over a five year period, as drilling occurs, in addition to royalties. CONSOL Energy made payments of $9,000 to CEVCO in the year ended December 31, 2016, while $50,969 of payments were made in the year ended December 31, 2015. At December 31, 2016, the amounts recorded in Other Current Liabilities and Other Long-Term Liabilities both on a discounted basis were $3,947 and $26,461, respectively. At December 31, 2015, the amounts recorded in Other Current Liabilities and Other Long-Term Liabilities on a discounted basis were $8,349 and $29,333, respectively.

In December 2014, CONSOL Energy completed the sale of its industrial supplies subsidiary to an unrelated third party for expected net proceeds of approximately $51,000, of which $44,035 was received and included in cash flows from investing activities during the year ended December 31, 2014. In connection with the sale, CONSOL Energy signed a supply agreement under which, among other things, it will continue to purchase certain goods exclusively from the new entity for a period of at least three years. CONSOL Energy recorded a net loss on the sale of $30,845, which was included in Gain on Sale of Assets in the Consolidated Statements of Income. In December 2015, there was $6,258 of expense related to the settlement of working capital adjustments and other matters in conjunction with the sale, which was included in Other Costs - Miscellaneous Operating Costs in the Consolidated Statements of Income.