Encana Corp. operates as a natural gas company. It focuses on developing its portfolio of diverse resource plays producing natural gas, oil and natural gas liquids. The company operates through three segments: Canadian, the United States of America and Market Optimization. The Canadian operations segment engages in the exploration, development, and production of natural gas, oil and natural gas liquids within Canada. The United States of America operations segment engages in the exploration, development, and production of natural gas, oil and natural gas liquids within the United States of America. The Market Optimization segment includes third party purchases and sales of product to provide operational flexibility for transportation commitments, product type, delivery points and customer diversification. Encana was founded in April 5, 2002 and is headquartered in Calgary, Canada.