- A D Brannan Jr
- A S Ross
- Ames Financial Inc
- Anderson Oil & Gas
- Arklatex Energy
- Ben R Lay
- Ber-Ex-Co Inc
- Broyles Investments
- Caddo Management Inc
- Caruthers Producing Co
- Chesapeake Operating Inc
- Christopher Franks
- Columbia Ventures Inc
- Copeland Oil Co
- CSC Energy Corp
- Everett Enterprises
- Garner & Takach
- Gene R Robinson
- Goldsberry Operating Co
- Hill Geophysical Consulting
- Hilliard Petroleum Inc
- Huggs Co
- Hunt Petroleum Corp
- Hyatt & Assoc
- J M Exploration Co
- John M Moore
- Johnson Energy Resources
- Johnson Minerals Co
- KCS Resources Inc
- King Oil
- KLH Inc
- LEJ Energy Co
- Lenert & Pettitt Inc
- Louisiana Exploration Inc
- Loutex Production Co
- Malone Oil & Gas Exploration
- Marlin Exploration Inc
- Marshall-Wuellner Inc
- Martin Production Co
- Max Energy
- Midroc Operating Co
- Murphy Land & Exploration
- Oden & Assoc
- Palmer Petroleum Inc
- Paluxy Minerals Corp
- PAR Minerals Corp
- Pride Exploration Inc
- Professional Scouting Svc
- Reliance Drilling
- Reynolds Drilling Co
- Robert A Stacy LTD Lblty Corp
- Robert M Mills Oil & Gas
- Sandstone Exploration
- Saye Oil Co
- Security Exploration Inc
- Sklar Exploration
- Southern Crude Inc
- Spanoil Exploration
- St Mary Land & Exploration Co
- Story Oil & Gas
- Stroud Exploration Co
- Sutton Enterprises
- Team Spirit Petroleum
- Ted W Walters & Assoc
- Treblig Investments Co
- Will Drill Resources
- Williamson Oil & Gas Inc
- Winwell Resources Inc
- Zadeck Energy Group
