Exhibit 21
CONSOL Energy Inc.
SUBSIDIARIES
As of January 31, 2012
(In alphabetical order)
| AMVEST Coal & Rail, LLC. (a Virginia limited liability company) | Eighty-Four Mining Company (a Pennsylvania corporation) | |
| AMVEST Coal Sales, Inc. (a Virginia corporation) | Fairmont Supply Company (a Delaware corporation) | |
| AMVEST Corporation (a Virginia corporation) | Fairmont Supply Oil and Gas LLC (formerly North Penn | |
| AMVEST Gas Resources, Inc. (a Virginia corporation) | Pipe & Supply, LLC) (a Pennsylvania limited liability company) | |
| AMVEST Mineral Services, Inc. (a Virginia corporation) | Fola Coal Company, LLC. d/b/a Powellton Coal Company (a West | |
| AMVEST Minerals Company, LLC. (a Virginia limited liability | Virginia limited liability company) | |
| company) | Glamorgan Coal Company, LLC. (a Virginia limited liability | |
| AMVEST Oil & Gas, Inc. (a Virginia corporation) | company) | |
| AMVEST West Virginia Coal, LLC. (a West Virginia limited | Helvetia Coal Company (a Pennsylvania corporation) | |
| liability company) | Island Creek Coal Company (a Delaware corporation) | |
| Braxton-Clay Land & Mineral, Inc. (a West Virginia corporation) | Keystone Coal Mining Corporation (a Pennsylvania corporation) | |
| Cardinal States Gathering Company (a Virginia general partnership) | Knox Energy, LLC. (a Tennessee limited liability company) | |
| Central Ohio Coal Company (an Ohio corporation) | Laurel Run Mining Company (a Virginia corporation) | |
| CNX Funding Corporation (a Delaware corporation) | Leatherwood, Inc. (a Pennsylvania corporation) | |
| CNX Gas Company LLC (a Virginia limited liability company) | Little Eagle Coal Company, L.L.C. (a West Virginia limited liability | |
| CNX Gas Corporation (a Delaware corporation) | company) | |
| CNX Land Resources Inc. (a Delaware corporation) | McElroy Coal Company (a Delaware corporation) | |
| CNX Marine Terminals Inc. (formerly Consolidation | MOB Corporation (a Pennsylvania corporation) | |
| Coal Sales Company) (a Delaware corporation) | Mon River Towing, Inc. (a Pennsylvania corporation) | |
| CNX Water Assets LLC (formerly CONSOL of WV LLC) (a West | Mon-View, LLC (a West Virginia limited liability company) | |
| Virginia limited liability company) | MTB, Inc. (a Delaware corporation) | |
| Coalfield Pipeline Company (a Tennessee corporation) | Nicholas-Clay Land & Mineral, Inc. (a Virginia corporation) | |
| Conrhein Coal Company (a Pennsylvania general partnership) | Peters Creek Mineral Services, Inc. (a Virginia corporation) | |
| CONSOL Energy Canada Ltd. (a Canadian corporation) | Piping and Equipment, Inc. (a Florida corporation) | |
| CONSOL Energy Holdings LLC VI (a Delaware limited liability | Reserve Coal Properties Company (a Delaware corporation) | |
| company) | Rochester & Pittsburgh Coal Company (a Pennsylvania corporation) | |
| CONSOL Energy Sales Company (formerly CONSOL Sales | Southern Ohio Coal Company (a West Virginia corporation) | |
| Company) (a Delaware corporation) | TEAGLE Company, LLC. (a Virginia limited liability company) | |
| CONSOL Financial Inc. (a Delaware corporation) | TECPART Corporation (a Delaware corporation) | |
| CONSOL of Canada Inc. (a Delaware corporation) | Terra Firma Company (a West Virginia corporation) | |
| CONSOL of Central Pennsylvania LLC (a Pennsylvania | Terry Eagle Coal Company, L.L.C. (a West Virginia limited liability | |
| CONSOL of Kentucky Inc. (a Delaware corporation) | company) | |
| CONSOL of Ohio LLC (an Ohio limited liability company) | Terry Eagle Limited Partnership (a West Virginia limited | |
| CONSOL of Wyoming LLC (a Delaware limited liability company) | partnership) | |
| Consol Pennsylvania Coal Company LLC (formerly Consol | Twin Rivers Towing Company (a Delaware corporation) | |
| Pennsylvania Coal Company) (a Delaware limited liability | Vaughan Railroad Company (a West Virginia corporation) | |
| company) | Windsor Coal Company (a West Virginia corporation) | |
| Consolidation Coal Company (a Delaware corporation) | Wolfpen Knob Development Company (a Virginia corporation) | |