Men work at an oil pump near the coast on the outskirts of Havana June 10, 2011. China looks ready to play a major role in the development of Cuban oil, including the island’s soon-to-be explored fields in the Gulf of Mexico, after the signing of energy-related accords during a visit this week by Vice President Xi Jinping. The text of the agreements has not been disclosed, but they appear aimed at making China a significant oil partner with its fellow communist-run country, which is likely to raise eyebrows in the nearby United States. REUTERS/Enrique De La Osa (CUBA – Tags: ENERGY BUSINESS POLITICS) – RTR2NJH9