- AEDCUSA Inc
- Alcorn Exploration
- Anderson Oil LTD
- Apache Corp
- Apache Corp
- Apache Corp
- BHP Billiton Petroleum Amer
- Black & Gold Resources
- BNP Petroleum
- British Gas
- Cedyco Corp
- Chrome Management Svc
- Claire's
- Crawford Energy Inc
- Crawford Energy Inc
- CSA Exploration Co
- Davis Gulf Coast Inc
- Davis Offshore
- DESCO Oil Co
- Duncan Oil Co
- Duncan Oil Co
- Equitable Production Co
- Equitable Production Co
- ERHC
- ERHC
- ERI Supply & Logistics
- ERI Supply & Logistics
- Escopeta Production Co
- Escopeta Production Co
- Extex Production
- Extex Production
- F Neil Rucker Oil & Gas
- F Neil Rucker Oil & Gas
- Future Petroleum Corp
- Future Petroleum Corp
- George Mejlander
- George Mejlander
- Halex Oil Corp
- Halex Oil Corp
- Indophil International Svc
- Indophil International Svc
- Interactive Exploration Inc
- Interactive Exploration Inc
- Japan National Oil Corp
- Japan National Oil Corp
- KCS Energy Inc
- KCS Energy Inc
- Krescent Energy Co
- Krescent Energy Co
- Lee Hite & Wisda
- Lee Hite & Wisda
- Live Oak
- Live Oak
- Louisiana Dept-Natural Rsrce
- Louisiana Dept-Natural Rsrce
- Lyas Inc
- Lyas Inc
- Marconi Exploration Inc
- Marconi Exploration Inc
- Mc Carthy Oil & Gas Corp
- Mc Carthy Oil & Gas Corp
- Merlon Petroleum Co Inc
- Merlon Petroleum Co Inc
- Michel Bechtel Exploration Co
- Michel Bechtel Exploration Co