Castro has given the green light to China and other nations to drill for oil in the Florida Straits. According to the New York Times,

In 1977, the United States and Cuba signed a treaty that evenly divided the Florida Straits to preserve each country's economic rights. They included access to vast underwater oil and gas fields on both sides of the line. Now, with energy costs soaring, plans are under way to drill this year - but all on the Cuban side. With only modest energy needs and no ability of its own to drill, Cuba has negotiated lease agreements with China and other energy-hungry countries to extract resources for themselves and for Cuba. Cuba's drilling plans have been in place for several years, but now that China, India and others are involved and fuel prices are unusually high, a growing number of lawmakers and business leaders in the United States are starting to complain. They argue that the United States' decades-old ban against drilling in coastal waters is driving up domestic energy costs and, in this case, is giving two of America's chief economic competitors access to energy at the United States' expense.... Cuban officials invited American oil companies to bid for the other leases on the Cuban side of the Florida Straits even though drilling in Cuban waters would violate the United States' longstanding trade embargo against Cuba.

Wonder how good our slant drilling capabilities are nowadays?