• Texas American Resources Inc
• Thor Energy Resources Inc
• Amerac Energy Corp
• Nano World Projects Corp
• Apache Corp
• Argonaut Energy Corp
• Southwestern Energy Company
• Barnwell Industries Inc.
• Earthstone Energy Inc
• Brock Exploration Corp
• Brodie Exploration Corp
• Brown Tom Inc
• Callon Petroleum Co/Ms
• Canada Southern Petroleum Ltd
• Nexen Inc
• Central Ohio Coal Co
• Chaparral Resources Inc
• Coastal Caribbean Oils & Minerals Ltd
• Avalon Corp
• Tri Valley Corp
• Comstock Resources Inc.
• Consolidation Coal Co
• Discovery Oil Ltd
• Escalera Resources Co.
• Matrixx Resource Holdings, Inc.
• Hunter Resources Inc
• Global Online India Inc
• Energy Corp of America
• Energy Reserves Group Inc
• EQT Corporation
• Equity Oil Co
• Sabine Oil & Gas Corp
• Fortune Natural Resources Corp
• Georesources Inc
• Gladstone Energy Inc
• Gnc Energy Corp
• Hiko Bell Mining & Oil Co
• Husky Energy Inc
• Bargo Energy Co
• Customer Sports Inc
• Island Creek Coal Co
• Kerr McGee Chemical Worldwide LLC
• PrimeEnergy Resources Corporation
• Louisiana Land & Exploration Co
• Tellurian Inc.
• Maynard Oil Co
• McFarland Energy Inc
• McMoran Exploration Co
• Mexco Energy Corporation
• Moran Energy Inc

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