Operating Companies
-
AB Resources LLC
Marcellus Shale -
Abraxas Petroleum Corp.
Bakken Shale | Barnett Shale | Eagle Ford Shale | Granite Wash Tight Gas | Niobrara Shale | Permian -
Adams Resources & Energy, Inc.
Cotton Valley Tight Gas | Haynesville Shale | Marcellus Shale | Permian -
Adler Energy, LC
Woodford Shale -
Alta Mesa Holdings, LP
Eagle Ford Shale | Marcellus Shale -
Alta Resources, LLC
Marcellus Shale -
Altai Resources Inc.
Utica Shale -
American Exploration Corp.
Haynesville Shale -
American Oil & Gas, Inc.
Bakken Shale -
Anadarko Petroleum Corporation
Eagle Ford Shale | Haynesville Shale | Marcellus Shale | Niobrara Shale | Permian | Piceance/Uinta Tight Gas | Pinedale/Jonah Tight Gas -
Anschutz Exploration Corporation
Bakken Shale | Marcellus Shale -
Antero Resources Corp.
Barnett Shale | Marcellus Shale | Piceance/Uinta Tight Gas | Woodford Shale -
Apache Corp.
Eagle Ford Shale | Granite Wash Tight Gas | Horn River Shale | Niobrara Shale | Permian | Woodford Shale -
Approach Resources Inc.
Cotton Valley Tight Gas | New Albany Shale | Permian -
Archer Petroleum Corp.
Permian -
Arsenal Energy Inc.
Bakken Shale | Niobrara Shale | Piceance/Uinta Tight Gas -
Aruba Petroleum, Inc.
Barnett Shale | Eagle Ford Shale -
Atlas Energy, L.P.
Marcellus Shale | New Albany Shale | Utica Shale -
Aurora Oil & Gas Limited
Eagle Ford Shale -
Austex Oil Limited
Mississippi Lime -
Badlands Steel, Inc.
Horn River Shale -
Basa Resources, Inc.
Cotton Valley Tight Gas -
Baytex Energy Ltd.
Bakken Shale -
Behm Energy
Bakken Shale -
Berry Petroleum Company
Cotton Valley Tight Gas | Haynesville Shale | Permian | Piceance/Uinta Tight Gas -
BG Group PLC
Haynesville Shale -
BHP Billiton Petroleum
Bakken Shale | Fayetteville Shale | Haynesville Shale -
Bill Barrett Corporation
Niobrara Shale | Piceance/Uinta Tight Gas -
Black Diamond Minerals, LLC
Piceance/Uinta Tight Gas -
BNK Petroleum Inc.
Polish Shale | Woodford Shale -
Bonanza Creek Energy Operating Company LLC
Niobrara Shale -
BP America, Inc.
Cotton Valley Tight Gas | Eagle Ford Shale | Fayetteville Shale | Granite Wash Tight Gas | Haynesville Shale | Pinedale/Jonah Tight Gas | Woodford Shale -
Braden Exploration, LLC
Barnett Shale -
Branta LLC
Piceance/Uinta Tight Gas -
Breitburn Energy Partners L.P.
New Albany Shale | Utica Shale -
Brigham Exploration Co.
Bakken Shale -
Broad Oak Energy, Inc.
Eagle Ford Shale | Permian -
Burnett Oil Co., Inc.
Barnett Shale -
Cabot Oil & Gas Corporation
Eagle Ford Shale | Haynesville Shale | Marcellus Shale -
Callon Petroleum Co.
Haynesville Shale | Permian -
Calyx Energy
Mississippi Lime -
Camterra Resources, Inc.
Haynesville Shale -
Canadian Quantum
Utica Shale -
Canbriam Energy Inc.
Utica Shale -
Carrizo Oil & Gas Inc.
Barnett Shale | Eagle Ford Shale | Fayetteville Shale | Marcellus Shale | New Albany Shale | Niobrara Shale | Woodford Shale -
Caza Oil & Gas, Inc.
Permian -
CEJA Corporation
Mississippi Lime -
Centurion Resources LLC
Granite Wash Tight Gas -
Chaparral Energy, LLC
Barnett Shale | Eagle Ford Shale | Granite Wash Tight Gas | Mississippi Lime | Permian | Woodford Shale -
Chesapeake Energy Corporation
Barnett Shale | Cotton Valley Tight Gas | Eagle Ford Shale | Granite Wash Tight Gas | Haynesville Shale | Marcellus Shale | Mississippi Lime | Niobrara Shale | Permian | Utica Shale | Woodford Shale -
Chevron Corp.
Granite Wash Tight Gas | Haynesville Shale | Marcellus Shale | Niobrara Shale | Permian | Piceance/Uinta Tight Gas | Utica Shale -
Chief Oil & Gas, LLC
Marcellus Shale -
China National Petroleum Corporation (CNPC)
Horn River Shale -
Cimarex Energy Company
Granite Wash Tight Gas | Permian | Woodford Shale -
Cinco Natural Resources Corp.
Eagle Ford Shale | Woodford Shale -
Cirque Resources LP
Bakken Shale | Niobrara Shale -
Citrus Energy Corporation
Barnett Shale | Marcellus Shale -
Clayton Williams Energy, Inc.
Eagle Ford Shale | Permian -
CNX Gas Corporation
Bakken Shale | Marcellus Shale | New Albany Shale -
Collins and Young LLC
Barnett Shale -
Comet Ridge Resources, LLC
Niobrara Shale -
Compton Petroleum Corporation
Bakken Shale -
Comstock Resources, Inc.
Eagle Ford Shale | Haynesville Shale -
Concho Resources Inc.
Permian -
ConocoPhillips
Bakken Shale | Barnett Shale | Bossier Tight Gas | Eagle Ford Shale | Haynesville Shale | Horn River Shale | Niobrara Shale | Permian | Piceance/Uinta Tight Gas | Polish Shale | Woodford Shale -
Consol Energy Inc.
Marcellus Shale | Utica Shale -
Continental Resources, Inc.
Bakken Shale | Marcellus Shale | Mississippi Lime | Niobrara Shale | Permian | Woodford Shale -
Cordillera Energy Partners III, LLC
Granite Wash Tight Gas -
Cornerstone E&P Co.
Barnett Shale -
CREDO Petroleum Corp.
Bakken Shale -
Crescent Point Energy Corp.
Bakken Shale -
Crimson Exploration Inc.
Eagle Ford Shale | Haynesville Shale | Niobrara Shale -
Crusader Energy Group Inc.
Bakken Shale | Barnett Shale -
Cubic Energy Inc
Haynesville Shale -
Cypress Drilling, LLC / Cypress Production Co.
Niobrara Shale -
Dale Resources L.L.C.
Barnett Shale | Haynesville Shale | Marcellus Shale -
David H. Arrington Oil & Gas, Inc.
Barnett Shale | Fayetteville Shale -
Dejour Energy Inc.
Piceance/Uinta Tight Gas -
Delta Petroleum Corporation
Eagle Ford Shale | Haynesville Shale | Niobrara Shale | Piceance/Uinta Tight Gas -
Denbury Resources, Inc.
Bakken Shale | Haynesville Shale -
Denex Petroleum Corp.
Marcellus Shale -
Devon Energy Corporation
Barnett Shale | Granite Wash Tight Gas | Haynesville Shale | Horn River Shale | Niobrara Shale | Permian | Utica Shale | Woodford Shale -
Diversified Operating Corp.
Niobrara Shale -
Dorchester Minerals, L.P.
Bakken Shale | Granite Wash Tight Gas | Marcellus Shale -
Double Eagle Petroleum Company
Niobrara Shale -
DTE Gas Resources
Barnett Shale -
Dune Energy, Inc.
Barnett Shale -
Eagle Rock Energy Partners LP
Granite Wash Tight Gas | Woodford Shale -
EagleRidge Energy LLC
Barnett Shale -
EGPI/Firecreek, Inc.
Barnett Shale -
El Paso Corporation
Cotton Valley Tight Gas | Eagle Ford Shale | Haynesville Shale | New Albany Shale | Permian -
El Paso Exploration & Production Company
Eagle Ford Shale | Niobrara Shale | Piceance/Uinta Tight Gas -
Encana Corporation
Bakken Shale | Bossier Tight Gas | Cotton Valley Tight Gas | Eagle Ford Shale | Haynesville Shale | Horn River Shale | New Albany Shale | Niobrara Shale | Piceance/Uinta Tight Gas | Pinedale/Jonah Tight Gas | Utica Shale -
Endeavor Energy Resources, LP
Barnett Shale | Permian -
Endeavour International Corporation
Haynesville Shale | Marcellus Shale -
Energen Resources
Niobrara Shale | Permian -
Energy Corporation of America
Marcellus Shale -
Enerplus Resources
Bakken Shale | Marcellus Shale -
Enervest Ltd
Barnett Shale | Marcellus Shale | Utica Shale -
EnerVest Operating, LLC
Utica Shale -
Eni S.p.A.
Barnett Shale -
Enseco Energy Services
New Albany Shale -
Entek Energy
Niobrara Shale -
EOG Resources, Inc.
Bakken Shale | Barnett Shale | Cotton Valley Tight Gas | Eagle Ford Shale | Haynesville Shale | Horn River Shale | Marcellus Shale | New Albany Shale | Niobrara Shale | Permian | Piceance/Uinta Tight Gas | Pinedale/Jonah Tight Gas | Woodford Shale -
Epsilon Energy Ltd.
Bakken Shale | Marcellus Shale | Utica Shale -
EQT Corporation
Marcellus Shale | Utica Shale -
Escondido Resources II LLC
Eagle Ford Shale -
Espada Operating LLC
Eagle Ford Shale -
EV Energy Partners, L.P.
Granite Wash Tight Gas | Haynesville Shale | Marcellus Shale | Permian | Utica Shale -
Evertson Companies/Evertson Energy Partners
Bakken Shale -
EXCO Resources, Inc.
Cotton Valley Tight Gas | Haynesville Shale | Marcellus Shale -
Exterra Energy Inc.
Barnett Shale -
ExxonMobil
Bakken Shale | Barnett Shale | Bossier Tight Gas | Cotton Valley Tight Gas | Eagle Ford Shale | Fayetteville Shale | Haynesville Shale | Horn River Shale | Marcellus Shale | Piceance/Uinta Tight Gas | Polish Shale | Woodford Shale -
Fairway Resources LLC
Barnett Shale -
Fasken Oil & Ranch, Ltd.
Permian -
Fidelity Exploration & Production Company
Bakken Shale | Niobrara Shale -
FieldPoint Petroleum Corporation
Permian -
FIML Natural Resources, LLC
Piceance/Uinta Tight Gas -
Forest Oil Corp.
Cotton Valley Tight Gas | Eagle Ford Shale | Granite Wash Tight Gas | Haynesville Shale | New Albany Shale | Permian | Pinedale/Jonah Tight Gas | Utica Shale -
Fossil Creek Resources, LLC
Niobrara Shale -
Fossil Operating Inc.
Haynesville Shale -
FX Energy, Inc.
Bakken Shale -
Gasco Energy Inc.
Piceance/Uinta Tight Gas -
Gastar Exploration , Ltd.
Bossier Tight Gas | Eagle Ford Shale | Marcellus Shale -
Gastem, Inc.
Marcellus Shale | Utica Shale -
GeoResources, Inc.
Bakken Shale | Eagle Ford Shale -
Geosouthern Energy Corp.
Eagle Ford Shale -
GFI Oil & Gas
Marcellus Shale -
GMX Resources Inc.
Bakken Shale | Haynesville Shale -
Goodrich Petroleum Corporation
Cotton Valley Tight Gas | Eagle Ford Shale | Haynesville Shale | Marcellus Shale -
Gulfport Energy Corporation
Bakken Shale | Niobrara Shale | Permian | Utica Shale -
Gulftex Operating, Inc.
Barnett Shale -
Halek Energy LLC
Barnett Shale -
Harvest Natural Resources, Inc.
Piceance/Uinta Tight Gas -
Hess Corporation
Bakken Shale | Eagle Ford Shale | Marcellus Shale | Utica Shale -
Hilcorp Energy Company
Eagle Ford Shale -
Hillwood International Energy
Barnett Shale | Fayetteville Shale -
Huntley & Huntley, Inc.
Marcellus Shale -
Imperial Oil Limited
Horn River Shale -
Indigo Minerals, LLC
Haynesville Shale -
Infinity Oil & Gas, Inc.
Barnett Shale -
J-W Operating Company
Barnett Shale | Haynesville Shale | Marcellus Shale -
J. Howard Bass & Associates
Marcellus Shale -
J.F. Deem Oil and Gas
Marcellus Shale -
Jayhawk Energy Inc
Bakken Shale -
Joint Resources
Barnett Shale -
Jonah Gas Co LLC
Niobrara Shale -
Julander Energy Company
Niobrara Shale -
Junex
Utica Shale -
Keeton Group LLC
Marcellus Shale -
Keystone Exploration Ltd.
Barnett Shale -
Kodiak Energy, Inc.
Horn River Shale -
Kodiak Oil & Gas Corp.
Bakken Shale -
Korea National Oil Corp.
Horn River Shale -
Kornye-Tillman Company
Barnett Shale -
Laramie Energy II, LLC
Niobrara Shale | Piceance/Uinta Tight Gas -
Laredo Energy
Eagle Ford Shale -
Laredo Petroleum, Inc.
Granite Wash Tight Gas -
Lario Oil & Gas Company
Bakken Shale | Niobrara Shale | Woodford Shale -
Lawrence W. Cohen
Pinedale/Jonah Tight Gas -
Legend Natural Gas II, LP
Barnett Shale -
Leor Energy LP
Bossier Tight Gas -
Lewis Energy Group
Eagle Ford Shale -
LINN Energy, LLC
Bakken Shale | Granite Wash Tight Gas | Permian | Utica Shale -
Little Pine Resources
Marcellus Shale -
Lucas Energy, Inc.
Eagle Ford Shale -
Magellan Petroleum Corporation
Bakken Shale -
Magnum Hunter Resources Corp.
Bakken Shale | Eagle Ford Shale | Marcellus Shale | Utica Shale -
Mainland Resources, Inc.
Haynesville Shale -
Maralex Resources, Inc.
Utica Shale -
Marathon Oil Corporation
Bakken Shale | Eagle Ford Shale | Haynesville Shale | Marcellus Shale | Niobrara Shale | Piceance/Uinta Tight Gas | Polish Shale | Woodford Shale -
Matador Resources Company
Haynesville Shale -
MCX Exploration (USA), Ltd.
Horn River Shale -
MDU Resources Group, Inc.
Niobrara Shale -
Metro Energy Group Inc.
Woodford Shale -
Mewbourne Oil Co.
Granite Wash Tight Gas | Permian -
Mid-East Oil Company
Marcellus Shale -
Mitsui E&P USA LLC
Eagle Ford Shale -
Modern Exploration Inc.
Eagle Ford Shale -
Molopo Energy Limited
Utica Shale -
Mooncor Oil & Gas Corp.
Horn River Shale -
Mountain V Oil & Gas, Inc.
Marcellus Shale -
Murex Petroleum Corporation
Bakken Shale -
Murphy Exploration & Production Co.
Eagle Ford Shale -
Murphy Oil Company, Ltd.
Bakken Shale -
Murphy Oil Corp.
Eagle Ford Shale -
Nadel & Gussman
Permian -
National Fuel Gas Company
Marcellus Shale -
New Frontier Energy, Inc. (NFEInc.)
Niobrara Shale -
Newark Energy LLC
Barnett Shale | Marcellus Shale -
Newfield Exploration Co.
Bakken Shale | Eagle Ford Shale | Granite Wash Tight Gas | Marcellus Shale | Piceance/Uinta Tight Gas | Pinedale/Jonah Tight Gas | Woodford Shale -
Nexen Inc.
Horn River Shale -
Noble Energy, Inc.
Haynesville Shale | Marcellus Shale | New Albany Shale | Niobrara Shale | Piceance/Uinta Tight Gas -
Norse Energy Corporation
Marcellus Shale | Utica Shale -
North Finn, LLC
Niobrara Shale -
Northern Oil & Gas, Inc.
Bakken Shale -
Northstar Energy
Eagle Ford Shale -
Novus Operating LLC
Marcellus Shale -
Nuloch Resources Inc.
Bakken Shale -
Oasis Petroleum Inc.
Bakken Shale -
Occidental Petroleum Corp.
Bakken Shale | Permian -
Opon International LLC
Piceance/Uinta Tight Gas -
Oxy USA
Piceance/Uinta Tight Gas -
Pablo Energy II, LLC
Mississippi Lime -
Painted Pony Petroleum Ltd.
Bakken Shale -
Paramount Resources Ltd.
Bakken Shale | Horn River Shale -
PDC Energy
Bakken Shale | Marcellus Shale | Niobrara Shale | Permian | Piceance/Uinta Tight Gas | Utica Shale -
Pengrowth Energy Trust
Horn River Shale -
Penn Virginia Oil & Gas
Cotton Valley Tight Gas | Eagle Ford Shale | Granite Wash Tight Gas | Haynesville Shale | Marcellus Shale | New Albany Shale | Woodford Shale -
Penn West Energy Trust
Horn River Shale -
Penneco Oil Company Inc.
Marcellus Shale -
Pennsylvania General Energy Co., LLC
Marcellus Shale -
Petro-Hunt, L.L.C.
Bakken Shale -
PetroBakken Energy Ltd.
Bakken Shale | Horn River Shale -
PetroEdge Energy LLC
Marcellus Shale -
Petrogulf Corporation
Piceance/Uinta Tight Gas -
Petrohawk Energy Corporation
Bossier Tight Gas | Cotton Valley Tight Gas | Eagle Ford Shale -
Petrolympic
Utica Shale -
PetroQuest Energy, Inc.
Cotton Valley Tight Gas | Eagle Ford Shale | Fayetteville Shale | Haynesville Shale | Niobrara Shale | Woodford Shale -
Phillips Energy Partners
Marcellus Shale -
Pine Ridge Oil & Gas, LLC
Niobrara Shale -
Pioneer Natural Resources Co.
Barnett Shale | Eagle Ford Shale | Permian -
Plains Exploration & Production Company
Eagle Ford Shale | Granite Wash Tight Gas | Haynesville Shale -
PostRock Energy Corp.
Marcellus Shale -
Presco Inc
Piceance/Uinta Tight Gas -
Primary Petroleum
Bakken Shale -
QEP Resources, Inc.
Granite Wash Tight Gas | Haynesville Shale | Niobrara Shale | Woodford Shale -
Questar Corporation
Bakken Shale | Cotton Valley Tight Gas | Niobrara Shale | Pinedale/Jonah Tight Gas | Woodford Shale -
Questerre Energy Corp.
Bakken Shale | Utica Shale -
Quicksilver Resources, Inc.
Bakken Shale | Barnett Shale | Horn River Shale | Niobrara Shale | Permian | Woodford Shale -
R. L. Adkins Corp.
Barnett Shale -
RAM Energy Resources, Inc.
Barnett Shale | Mississippi Lime -
Ramshorn Investments Inc.
Horn River Shale -
Range Resources Corporation
Granite Wash Tight Gas | Marcellus Shale | Mississippi Lime | Permian | Utica Shale | Woodford Shale -
Red Rhino Resources, LLC
Niobrara Shale -
Red Willow Production Co.
Bakken Shale -
Regal Resources Inc.
Marcellus Shale -
Reliance Holding USA, Inc.
Eagle Ford Shale -
Reliance Industries Ltd.
Eagle Ford Shale | Marcellus Shale -
ReoStar Energy Corporation
Barnett Shale | Eagle Ford Shale -
Republic Energy, Inc.
Barnett Shale -
Resolute Energy Corp.
Bakken Shale | Niobrara Shale | Permian -
Retamco Operating, Inc.
Niobrara Shale -
Rex Energy Corporation
Marcellus Shale | New Albany Shale | Niobrara Shale -
Rice Energy LLC
Marcellus Shale -
Rife Energy Operating, Inc.
Barnett Shale -
Rimrock Energy, LLC
Barnett Shale -
Roil Mineral & Land Company, Inc.
Barnett Shale -
Ropa Exploration Corp.
Barnett Shale -
Rose Exploration Associates
Niobrara Shale -
Rosetta Resources Inc.
Bakken Shale | Eagle Ford Shale | Niobrara Shale | Permian | Pinedale/Jonah Tight Gas -
Rubicon Oil & Gas
Niobrara Shale -
Running Foxes Petroleum
Marcellus Shale | Mississippi Lime | Niobrara Shale -
Samson
Bakken Shale | Granite Wash Tight Gas | Haynesville Shale | Niobrara Shale | Permian -
San Isidro Developent Company, LC
Eagle Ford Shale -
SandRidge Energy Inc.
Bakken Shale | Barnett Shale | Eagle Ford Shale | Mississippi Lime | Permian | Woodford Shale -
Sanguine Gas Exploration, LLC
Granite Wash Tight Gas -
Saxon Oil Company Ltd.
Eagle Ford Shale -
Schneider Downs & Co., Inc.
Marcellus Shale -
Shell Energy North America (US), L.P.
Eagle Ford Shale | Haynesville Shale | Marcellus Shale | Utica Shale -
Shell Oil Company
Eagle Ford Shale | Piceance/Uinta Tight Gas -
Slate Holdings Inc.
Barnett Shale -
Slawson Exploration Co., Inc.
Bakken Shale | Niobrara Shale -
SM Energy Company
Bakken Shale | Cotton Valley Tight Gas | Eagle Ford Shale | Granite Wash Tight Gas | Haynesville Shale | Marcellus Shale | Niobrara Shale | Permian | Woodford Shale -
South Jersey Industries
Marcellus Shale -
Southwestern Energy Company
Fayetteville Shale | Haynesville Shale | Marcellus Shale -
Spindletop Oil & Gas Co.
Barnett Shale -
Spyglass Energy Group, LLC
Mississippi Lime -
Statoil USA
Eagle Ford Shale | Marcellus Shale -
Stone Energy Corp.
Bakken Shale | Marcellus Shale | Niobrara Shale -
Stroud Petroleum, Inc.
Haynesville Shale -
Sullivan & Co., L.L.C.
Mississippi Lime -
Summit Petroleum LLC
Permian -
Suncor Energy, Inc.
Piceance/Uinta Tight Gas -
Sundance Energy Company
New Albany Shale -
Sundance Energy, Inc.
Bakken Shale | New Albany Shale | Niobrara Shale -
Swift Energy Co.
Eagle Ford Shale -
Synergy Resources Corporation
Niobrara Shale -
Talisman Energy Inc.
Bakken Shale | Eagle Ford Shale | Marcellus Shale | Polish Shale | Utica Shale -
Talisman Energy USA Inc.
Marcellus Shale -
Talon Oil & Gas LLC
Barnett Shale -
Tenaska
Marcellus Shale -
Territory Resources LLC
Mississippi Lime -
Teton Energy Corporation
Bakken Shale -
Texakoma Operating, LP
Granite Wash Tight Gas -
Texas Keystone Incorporated
Marcellus Shale -
Texon
Marcellus Shale -
Texon Petroleum Ltd.
Eagle Ford Shale | Permian -
The Cumming Co. Inc.
Barnett Shale -
Titan Operating, LLC
Barnett Shale -
Total E&P
Barnett Shale -
Tracker Resource Development, LLC
Bakken Shale -
Trans Energy, Inc.
Marcellus Shale -
TransAmerican Energy Inc.
Utica Shale -
Triana Energy, LLC
Marcellus Shale -
Triangle Petroleum Corporation
Bakken Shale | Barnett Shale | Cotton Valley Tight Gas -
Turm Oil Inc.
Marcellus Shale -
U. S. Energy Corp.
Bakken Shale | Eagle Ford Shale -
Ultra Petroleum Corporation/Ultra Resources
Marcellus Shale | Pinedale/Jonah Tight Gas -
Unit Corporation
Bakken Shale | Eagle Ford Shale | Granite Wash Tight Gas | Haynesville Shale | Marcellus Shale | Woodford Shale -
Upham Oil & Gas Company, L.P.
Barnett Shale -
Ursa Resources Group LLC
Bakken Shale -
US Natural Gas Corp.
Marcellus Shale -
Vanguard Natural Resources LLC
Eagle Ford Shale | Permian -
Vantage Energy LLC
Barnett Shale -
Vavco, LLC
Marcellus Shale -
Vitruvian Exploration, LLC
Mississippi Lime -
Voyager Oil & Gas Inc.
Bakken Shale | Niobrara Shale -
Warren Resources Inc.
Niobrara Shale -
WEJCO Exploration & Production
Eagle Ford Shale -
Wellstar Corporation
Niobrara Shale -
Whiting Petroleum Corp.
Bakken Shale | Niobrara Shale | Permian -
Whitmar Exploration Co.
Bakken Shale | Fayetteville Shale | Marcellus Shale | Piceance/Uinta Tight Gas | Woodford Shale -
Whittle Corporation
Marcellus Shale -
Wiepking-Fullerton Energy, LLC
Niobrara Shale -
Williams
Bakken Shale | Barnett Shale | Marcellus Shale | Niobrara Shale | Piceance/Uinta Tight Gas -
XTO Energy/ExxonMobil
Bakken Shale | Barnett Shale | Eagle Ford Shale | Fayetteville Shale | Haynesville Shale | Marcellus Shale | Piceance/Uinta Tight Gas | Polish Shale | Woodford Shale -
Yates Petroleum Corp.
Niobrara Shale | Permian -
ZaZa Energy, LLC
Eagle Ford Shale -
Zenergy, Inc.
Bakken Shale -
Zerkel Holdings, LLC
Marcellus Shale -
Zone Oil & Gas LLC
Marcellus Shale
Tel: +1.713.260.6400; Fax: +1.713.840.8585
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