Vantage Drilling 

Vantage Drilling Company, through its subsidiaries, provides offshore contract drilling services in the United States and internationally. It offers drilling units, related equipment, and work crews under contract to drill oil and natural gas wells. The company also provides construction supervision and operations management services for drilling units owned by others. As of March 6, 2015, it owned a fleet of seven drilling units, including three ultra-deepwater drillships and four ultra-premium jackup rigs. The company primarily serves multinational oil and natural gas companies, government owned oil and natural gas companies, and independent oil and natural gas producers. Vantage Drilling Company was founded in 2007 and is based in Houston, Texas.