Exploration & Production
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Alta Mesa Holdings, LP
(Private)
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Americas Petrogas, Inc.
(TSXV: BOE)
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Anadarko Petroleum Corporation
(APC)
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Approach Resources, Inc.
(AREX)
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Bellatrix Exploration
(TSX: BXE)
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Callon Petroleum Co.
(CPE)
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Carrizo Oil & Gas, Inc.
(CRZO)
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Celtic Exploration Ltd.
(TSX: CLT)
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CGX Energy, Inc.
(TSXV: OYL)
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Chinook Energy Inc.
(TSX: CKE)
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Clayton Williams Energy, Inc.
(CWEI)
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Comstock Resources Inc.
(CRK)
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Continental Resources Inc.
(CLR)
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Crew Energy Inc.
(TSX: CR)
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Crimson Exploration Inc.
(CXPO)
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Crocotta Energy Inc.
(TSX: CTA)
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Endeavour International Corporation
(END)
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Energy Partners, Ltd.
(EPL)
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Energy XXI (Bermuda) Limited
(EXXI)
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Enhanced Oil Resources
(EOR)
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Epsilon Energy Ltd.
(TSX: EPS)
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Evolution Petroleum Corp.
(EPM)
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Fairborne Energy Ltd.
(TSX: FEL)
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GMX Resources Inc.
(GMXR)
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Goodrich Petroleum Corporation
(GDP)
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Guide Exploration Ltd.
(TSX: GO)
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Gulfport Energy Corp.
(GPOR)
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Harvest Natural Resources
(HNR)
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Houston American Energy Corp.
(HUSA)
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Hyperdynamics Corporation
(HDY)
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Northern Oil and Gas, Inc.
(NOG)
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Pace Oil and Gas Ltd.
(TSX: PCE)
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Panhandle Oil & Gas Inc.
(PHX)
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PetroBakken Energy Ltd.
(TSX: PBN)
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PetroQuest Energy, Inc.
(PQ)
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Pinecrest Energy Inc.
(TSXV: PRY)
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Plains Exploration & Production Company
(PXP)
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Quicksilver Resources Inc.
(KWK)
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Range Resources Corporation
(RRC)
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Recovery Energy, Inc.
(RECV)
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Red Mountain Resources, Inc.
(RDMP.OB)
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Renegade Petroleum Ltd.
(TSXV: RPL)
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Rowan Companies Inc.
(RDC)
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SandRidge Energy, Inc.
(SD)
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Shona Energy Company, Inc.
(TSXV: SHO)
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Southwestern Energy Company
(SWN)
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Surge Energy, Inc.
(TSX: SGY)
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Swift Energy Company
(SFY)
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Synergy Resources Corporation
(SYRG)
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TransAtlantic Petroleum Ltd.
(TAT)
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TransGlobe Energy Corp.
(TGA)
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Triangle Petroleum Corporation
(TPLM)
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Tuscany International Drilling Inc.
(TSX: TID)
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Twin Butte Energy Ltd.
(TSX: TBE)
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Underground Energy Corporation
(TSXV: UGE)
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Voyager Oil & Gas, Inc.
(VOG)
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WesternZagros Resources Ltd.
(TSXV: WZR)
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Xtreme Drilling and Coil Services
(TSX: XDC)
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