EnCana’s U.S. operations are focused on exploiting long-life unconventional natural gas formations in the Jonah field in southwest Wyoming, the Piceance Basin in northwest Colorado and the East Texas, Fort Worth and Maverick Basins in Texas. The majority of the production in the USA Division is from the four key resource plays at Jonah, Piceance, East Texas and Fort Worth. Together, these four key resource plays accounted for approximately 87 percent of the total U.S. natural gas production in 2007. In 2007, EnCana's U.S. natural gas production averaged 1,345 million cubic feet per day (MMcf/d).

The USA Division also has interests in natural gas gathering and processing assets, primarily in Colorado, Wyoming, Texas and Utah.