- Alliance Gas Products Corp
- Amarillo Natural Gas Gathering
- Bayou Bend Petroleum Corp
- Bayou Bend Petroleum Corp
- BP America Production Co
- Charro Operating LLC
- Charro Operating LLC
- Chase Avenue Corp
- Chevron Texaco
- Chic Beautique
- Chic Bella Boutique
- Conoco
- Conoco Phillips
- Conocophillips Co
- Conocophillips Co
- Damson Gas Processing Corp
- Devon Energy Corp
- Devon Energy Corp
- Dome Pipeline Co
- Dome Pipeline Co
- Dorchester Minerals OP
- Duke Energy Field Svc
- Duke Gas Corp
- Duke Gas Corp
- End Users Inc
- End Users Inc
- Energytec Inc
- Enertex Limited
- Enron Transportation & Storage
- Exoko Gas Technologies Inc
- Exxon Mobil Corp
- GHK Co
- Glacier Gas Co
- Hyquest Energy Inc
- Indian Rock Gathering Co LP
- J D Gas Inc
- J D Gas Inc
- Kansas Natural Gas Inc
- KAT Energy Corp
- KAT Energy Corp
- Kinder Morgan Tejas
- Kinder Morgan Tejas
- MCB Energy Inc
- Meador Construction
- Mercury Exploration Co
- Moleo Gas Corp
- Mustang Gas Products
- MUSTANG Gas Products
- Mustang Gas Products
- Mustang Gas Products
- National Energy Group Inc
- National Energy Group Inc
- National Energy Group Inc
- Natural Gas Pipeline Co
- Nuke Energy Field Svr
- Oneok Field Svc
- Oneok Westex Transmission
- Panenergy Field Svc
- Petro MAX Operating Co
- Petrohawk Energy
- Phillips Petroleum Co
- Prospective Investment & Trdng
- Redessa Operating Co
- Seminole Gas
- St Lawrence Gas Co
- Westhoma Oil Co
- Wichita Gas Producers
- Woodlawn Pipeline Co
- Xto Energy Inc
- Xto Energy Inc
