Other operators in the area include:
- Largest is EOG Resources listed on the NYSE . Current capitalisation US$58 Billion.
- Statoil
- Repsol
- BHP Billiton
- Sabine Oil
- Marathon Oil listed NYSE. MKT Cap US$12.8 Billion.
- Petrohawk Energy – a subsidiary of BHP Billiton
- Burlington Resources – a subsidiary of ConocoPhillips
- Hunt Oil
- Lucas Energy