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