Atwood Oceanics, Inc., together with its subsidiaries, engages in the offshore drilling and completion of exploratory and developmental oil and gas wells worldwide. It also provides related support, management, and consulting services. The company offers various rigs, such as semisubmersible rigs, semisubmersible tender assist rigs, jack-up drilling rigs, and submersible drilling rigs. As of November 27, 2007, Atwood Oceanics owned and operated eight offshore mobile drilling units located in six regions of the world, including offshore Southeast Asia, offshore Africa, offshore India, offshore Australia, the Black Sea, and the United States Gulf of Mexico. The company was founded in 1968 and is headquartered in Houston, Texas.