W&T Offshore, Inc. is an independent oil and natural gas producer. The Company is engaged in the exploration, development and acquisition of oil and natural gas properties in the Gulf of Mexico. As of December 31, 2016, the Company had interests in offshore leases covering approximately 750,000 gross acres (450,000 net acres) spanning across the Outer Continental Shelf (OCS) off the coasts of Louisiana, Texas, Mississippi and Alabama. Its producing fields are located in federal and state waters in the Gulf of Mexico in water depths ranging from less than 10 feet up to 7,300 feet. Its fields include Ship Shoal 349 Field (Mahogany), Fairway Field, Viosca Knoll 783 Field (Viosca Knoll 783 (Tahoe) and Viosca Knoll 784 (SE Tahoe)), Mississippi Canyon 782 Field (Dantzler), Mississippi Canyon 698 Field (Big Bend), Mississippi Canyon 243 Field (Matterhorn), Ewing Bank 910, Brazos A-133 Field and Viosca Knoll 823 Field (Virgo).