High Quality Content by WIKIPEDIA articles! XTO Energy is an American Fortune 500 and S&P 500 energy producing company. Its primary products are oil and natural gas. It is based in Downtown Fort Worth, Texas. Its current CEO is Keith Hutton. The company was founded in 1985 as Cross Timbers Oil Company. It changed its name in 2001. In 2007, it paid Dominion Resources $2.5 billion for 1 trillion cubic feet of oil and gas reserves in the Rocky Mountains, Texas and southern Louisiana, In 2008 XTO acquired Hunt Petroleum Corporation for $4.2 billion. At the end of the second quarter of 2009 XTO Energy became the largest producer of natural gas in the United States. The Fortune 500 is an annual list compiled and published by Fortune magazine that ranks the top 500 U.S. closely held and public corporations as ranked by their gross revenue after adjustments made by Fortune to exclude the impact of excise taxes companies collect.