Check out the ocean floor map in this article. Apparently, other companies (than US) have been gathering seismic data about Cuban offshore potential. Interesting. Notice however none of these Latin American companies have much ability to drill in deep water. Shallow may be,deep no. http://www.bloomberg.com/news/2014-12-17/obama-s-unambiguous-message-to-putin-about-cuba-we-win-and-you-lose.html