> President Obama has signaled his support for increasing the U.S.'s exports of natural gas, saying that the country will probably be a net seller of LNG by 2020. The Department of Energy is assessing applications for 20 projects to export gas to nations with which the U.S. doesn't have a free trade agreement. Companies that could benefit include Dominion Resources (D), Cheniere Energy (LNG), Oiltanking Partners (OILT), Williams Cos. (WMB), Boardwalk Pipeline Partners (BWP) and Sempra Energy (SRE). Dow Chemical (DOW) and Alcoa (AA) are among those to oppose increased LNG exports, as it could raise their costs