Atwood Oceanics, Inc., along with its international operating subsidiary, Atwood Oceanics Pacific Limited (AOPL) and related subsidiaries, is engaged in the business of international offshore drilling and completion of exploratory and developmental oil and gas wells, and related support, management and consulting services. As of September 30, 2009, the Company’s worldwide operations included nine offshore mobile drilling units located in five regions of the world: offshore Southeast Asia, offshore Africa, offshore Australia, the Mediterranean Sea and the United States Gulf of Mexico. As of September 30, 2009, the submersible Richmond was the only drilling unit working in the United States waters. As of November 24, 2009, the Company’s wholly owned and operating rig fleet included Atwood Eagle, Atwood Hunter, Atwood Falcon, Atwood Southern Cross, Seahawk, Atwood Aurora, Atwood Beacon, Vicksburg and Richmond.