Exhibit 21

CONSOL Energy Inc.

CORPORATE DIRECTORY

As of January 31, 2008

(In alphabetical order reflecting correct capitalization)

AMVEST Coal & Rail, LLC. AMVEST Coal Sales, Inc. AMVEST Corporation AMVEST Gas Resources, Inc. AMVEST Mineral Services, Inc. AMVEST Minerals Company, LLC. AMVEST Oil & Gas, Inc. AMVEST West Virginia Coal, LLC. Braxton-Clay Land & Mineral, Inc. Buchanan Generation, LLC Cardinal States Gathering Company Cargo Dockers Ltd. Central Ohio Coal Company CNX Funding Corporation CNX Gas Company LLC CNX Gas Corporation CNX Land Resources Inc. CNX Marine Terminals Inc. (formerly Consolidation Coal Sales Company) Coalfield Pipeline Company Conrhein Coal Company CONSOL Docks Inc. CONSOL Energy Canada Ltd. CONSOL Energy Inc. CONSOL Energy Sales Company (formerly CONSOL Sales Company) CONSOL Financial Inc. CONSOL Godefroid Europe S.A. CONSOL of Canada Inc. CONSOL of Central Pennsylvania LLC CONSOL of Kentucky Inc. CONSOL of Ohio LLC CONSOL of WV LLC CONSOL of Wyoming LLC Consol Pennsylvania Coal Company LLC (formerly Consol Pennsylvania Coal Company) Consolidation Coal Company Eighty-Four Mining Company Fairmont Supply Company Fola Coal Company, LLC. FutureGen Industrial Alliance, Inc. Glamorgan Coal Company, LLC. Harrison Resources, LLC Helvetia Coal Company Island Creek Coal Company Keystone Coal Mining Corporation Knox Energy, LLC. Laurel Run Mining Company Leatherwood, Inc. Little Eagle Coal Company, LLC. McElroy Coal Company Mon River Towing, Inc. Mon-View, LLC MTB, Inc. Nicholas-Clay Land & Mineral, Inc. Peters Creek Mineral Services, Inc. Piping and Equipment, Inc. Reserve Coal Properties Company Rochester & Pittsburgh Coal Company Southern Ohio Coal Company Southern West Virginia Energy, LLC Southern West Virginia Resources, LLC Supply Chain Management LLC TEAGLE Company, LLC. TECPART Corporation Terra Firma Company Terry Eagle Coal Company, LLC. Terry Eagle Limited Partnership Twin Rivers Towing Company Vaughan Railroad Company Western Allegheny Energy, LLC Windsor Coal Company Wolfpen Knob Development Company Youngs Creek Mining Company, LLC