Hey, Geography boy, I'm pretty sure that the Gulf of Mexico is considered a part of the Atlantic Ocean

From the Smithsonian....
Atlantic Ocean Geography
excerpted from: THE WORLD FACTBOOK 1994, ELECTRONIC VERSION produced by the Central Intelligence Agency.
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Geography
Location: body of water between the Western Hemisphere and Europe/Africa
Map references: Africa, Antarctic Region, Arctic Region, Central America and the Caribbean, Europe, North America, South America, Standard Time Zones of the World
Area:
total area 82.217 million sq km
comparative area slightly less than nine times the size of the US; second-largest of the world's four oceans (after the Pacific Ocean, but larger than Indian Ocean or Arctic Ocean)
note includes Baltic Sea, Black Sea, Caribbean Sea, Davis Strait, Denmark Strait, Drake Passage,
Gulf of Mexico, Mediterranean Sea, North Sea, Norwegian Sea, Scotia Sea, Weddell Sea, and other tributary water bodies.
http://seawifs.gsfc.nasa.gov/OCEAN_PLAN ... antic.htmlCoastline: 111,866 km