Gulf Coast of the United States Pensacola, St. Petersburg, Tampa, and increasingly, Sarasota. All are the centers of their respective metropolitan areas and contain large ports. (Baton Rouge is relatively far from the Gulf of Mexico; its port is on the Mississippi River, as is the port of New Orleans.) The Gulf Coast is made of many inlets, bays, and lagoons. The coast is also intersected by numerous rivers, the largest of which is the Mississippi River. Much of the land along the Gulf Coast is, or was, marshland. Ringing the Gulf Coast is the Gulf Coastal Plain which reaches from Southern Texas to the western
Offshore oil and gas in the Gulf of Mexico (United States) 1938, but the first oil discovery was not made until 1941, off of Jefferson County. Through 2007, Texas state waters have produced of oil and . In 2007, Texas state waters produced of oil and condensate and gas. The first oil test in offshore Alabama was made in Mobile Bay in 1951. The first discovery in state waters of offshore Alabama was made in 1979. By 2005 a total of 80 wells have been drilled in state water, and production in Alabama state water provided per year, half the state's gas production. The eastern Gulf of Mexico, which includes offshore