Tidewater Inc. provides offshore service vessels and marine support services. The Company operates through four segments: Americas, Asia/Pacific, Middle East/North Africa and Sub-Saharan Africa/Europe. Its Americas segment includes the activities of the Company's North American operations, which include operations in the United States Gulf of Mexico (GOM), and the United States and Canadian coastal waters of the Pacific and Atlantic oceans, as well as operations of offshore Mexico, Trinidad and Brazil. The Asia/Pacific segment includes its Australian and Southeast Asian and Western Pacific operations. The Middle East/North Africa segment includes its operations in the Mediterranean and Red Seas, the Black Sea, the Arabian Gulf and offshore India. The Company's Sub-Saharan Africa/Europe segment includes operations conducted along the East and West Coasts of Africa, as well as operations in and around the Caspian Sea, the North Sea, and certain other arctic/cold water markets.