NuVista Energy Ltd., together with its subsidiaries, engages in the exploration, development, and production of oil and natural gas reserves in the Western Canadian Sedimentary Basin. The company is also involved in the development, delineation, and production of condensate, natural gas liquids, and natural gas reserves. It focuses on the condensate-rich Montney formation in the Pipestone and Wapiti areas of the Alberta Deep Basin. NuVista Energy Ltd. was formerly known as 1040491 Alberta Ltd. and changed its name to NuVista Energy Ltd. in May 2003. The company was incorporated in 2003 and is headquartered in Calgary, Canada.