W&T Offshore, Inc. engages in the production, exploration, development, and acquisition of oil and natural gas properties. The company is headquartered in Houston, Texas and currently employs 400 full-time employees. The company went IPO on 2005-01-28. The firm has working interests in approximately 52 fields in federal and state waters (which include 45 fields in federal waters and seven in state waters). The firm has under lease approximately 646,200 gross acres (502,300 net acres) spanning across the outer continental shelf off the coasts of Louisiana, Texas, Mississippi and Alabama, with approximately 493,000 gross acres on the conventional shelf, approximately 147,700 gross acres in the deepwater and 5,500 gross acres in Alabama state waters. The Company’s interests in fields, leases, structures and equipment are primarily owned by its wholly owned subsidiaries and through its proportionately consolidated interest in Monza Energy LLC. The firm's subsidiaries include Aquasition Energy LLC, Aquasition LLC, Aquasition II, LLC, Aquasition III, LLC, Aquasition IV, LLC, Aquasition V, LLC, and others.