- Abraxas Petroleum Corp
- Act Operating Co
- Anthem Oil & Gas Inc
- ARES Energy
- Battlecat Oil & Gas
- Bill C Burns
- Black Hawk Oil & Gas
- Blaze Petroleum Corp
- BP America Production Co
- Brother's Production Co
- BTA Oil Producers
- BWB Partners I
- C & F Petroleum Inc
- C W Trainer
- Cal-Mon Oil Co
- Cardwell Oil Corp
- Charles Hartwell Consultant
- Chisos Operating Inc
- Cog Operating
- Cov Inc
- Crestridge Drilling-Production
- D K Boyd Oil & Gas Co
- Dalton H Cobb
- Don L Bishop
- Earle M Craig Jr Corp
- Ellis Properties
- Endeavor Energy
- Endeavor Energy
- Endeavor Energy Resources
- Ernest Angelo Office
- Exxon Mobil Pegusis Production
- Falcon Bay Operating
- Fasken Oil & Ranch LTD
- Flow Production Co
- Foy Boyd Assoc Inc
- Fuel Products
- Glorieta Oil Co Inc
- Griffin Petroleum Co
- Halvey Energy Co
- Harris & Walton Oil Oprtrs
- Heck Exploration Co
- Hexad Oil Co
- Incline Energy Inc
- J Hiram Moore LTD
- Jomo Oil Corp
- KERN Co
- Knight Oil Tools Inc
- Las Animals Natural Gas
- Latigo Petroleum Inc
- Laurel Oil Inc
- Laurel Oil Inc
- Leeco Energy Inc
- Leeco Energy Inc
- Lewis Oil & Gas Inc
- Lewis Oil & Gas Inc
- Lion Production Inc
- Lpc Crude Oil Inc
- M & J Energy Inc
- Matador Drilling Corp
- Mewbourne Oil Co
- Michaelson Producing Co
- Miltex Oil Co
- Moore & Gilmore
- Page Exploration
- Patriot Oil Co
- Pech Oil Co
- Penn Enterprises
- Permian Resources Inc
- Perry Bolger Ind Oil&Gas Prod
- Phoenix Hydrocarbons Operating
- Pioneer Natural Resources USA
- Pitts Energy
- Prism Energy
- R Capps Oil Corp
- Ralph Way Oil & Gas
- Raptor Resources Inc
- Richman Petroleum Corp
- Richmond Oil Assn LLC
- Robert A Dean
- Robert A Dean
- Robert E Eubanks
- Robert E Eubanks
- Robert L Glossop
- Robert L Glossop
- Ross Family Trust
- Rubicon Oil & Gas
- Rutter & Wilbanks
- Sahara Operating Co
- Satanta Oil Co
- Shackelford Oil Co
- Stallion Energy Inc
- Stephen C Helbing
- Stephen C Helbing
- Tacor Resources Inc
- Taurus Minerals Inc
- Texas Crude Inc
- Union Royalty Inc
- Uno Mas Oil LTD
- V-F Petroleum Inc
- Vecta Exploration
- Verdad Oil & Gas Corp
- W D Kennedy Co
- Wagner & Brown
- Walsh Petroleum
- Wesley E Pittman
- Whiting Oil & Gas
- Xto Energy Inc