- Cary N Billingsley
- Cary N Billingsley
- Cogent Energy
- D R Lutton & Assoc
- DXN Assoc
- Glenn S Brant
- Hari Prasad Production Inc
- JDA & Assoc
- Joe C Neal & Assoc
- Mc Clurg & Cook Petroleum
- Petrogrowth Advisors
- Petroleum Educational Svc Inc
- Rhett Gist
- Rhett Gist
- Robert H Angevine
- Robert H Angevine
- Steven A Becker
- Steven A Becker
- Storbeck Consulting Inc
- T Scott Hickman & Assoc Inc
- Terry D Clay & Assoc
- Thomas E Gentry
- Thomas E Gentry
- Thunderbolt Petroleum
- Transpetco Engineering-The Sw
