GulfMark Offshore, Inc. provides offshore marine support and transportation services primarily to companies involved in the offshore exploration and production of oil and natural gas. Its vessels offer various services supporting the construction, positioning, and ongoing operation of offshore oil and natural gas drilling rigs and platforms, and related infrastructure. The company’s vessels transport materials, supplies, and personnel to offshore facilities, as well as move and position drilling structures. Its fleet of offshore supply vessels include anchor handling, towing, and support vessels; platform supply vessels; fast supply or crew vessels; specialty vessels; standby rescue vessels; construction support vessels; and utility vessels. The company also offers management services to other vessel owners. As of February 23, 2012, its active fleet included 73 owned vessels and 18 managed vessels. The company principally serves integrated oil and natural gas companies; independent oil and natural gas exploration and production companies working in international markets; and foreign government-owned or controlled oil and natural gas companies, as well as companies that provide logistic, construction, and other services to such oil and natural gas companies and foreign government organizations. It primarily operates in the North Sea, Southeast Asia, and the Americas. GulfMark Offshore, Inc. was founded in 1996 and is based in Houston, Texas.