The growing involvement of U.S. energy companies in the extraction of oil and natural gas from the South China Sea has added another layer to the United States’ strategy. According to a recent report from the U.S. Department of Energy, major firms such as Chevron, ConocoPhillips, and ExxonMobil have partnered with the state-owned oil companies of Malaysia, Vietnam, and the Philippines to develop promising reserves in maritime territories claimed by these countries as well as China. In October 2011, for example, Exxon announced a major gas find in waters claimed by Vietnam that are also said to be part of China’s own maritime territory.