- Antrim Development Corp
- Arbor Resources Inc
- Cima Energy
- Empire Co
- Energy Quest Inc
- Golden Petroleum
- Maverick Exploration
- Pasadena Oil & Gas Corp
- Petrostar Energy
- Quicksilver Resources Inc
- Quicksilver Resources Inc
- Republic Energy Corp
- Rock Oil
- Rokos Consulting Inc
- Rowe & Assoc
- Savoy Exploration Inc
- Scandia Energy Co
- Somoco Inc
- Sturgeon Point Development Co
- Tiger Development
- West Bay Geophysical
