Nexen Inc. operates in the Crude petroleum and natural gas sector. Nexen Inc. (Nexen) is an independent, Canada-based global energy company. It operates in two segments: Oil and Gas, and Energy Marketing. Nexen's oil sands investments include interests in the Long Lake project and the Syncrude joint venture. The Company explores for, develops and produces crude oil, natural gas and related products worldwide. During the year ended December 31, 2010, the Company added 101 million barrels of oil equivalent of proved reserves (107 after royalties), sold 36 million barrels of oil equivalent (30 after royalties) associated with its heavy oil properties and produced 89 million barrels of oil equivalent. In May 2010, Nexen sold its natural gas trading operations to a unit of The Goldman Sachs Group, Inc. In February 2011, the Company disposed of 62.7% investment in Canexus Limited Partnership and its subsidiaries (Canexus), which consisted of the Company's Chemical business. In July 2010, Nexen sold its heavy oil properties in Canada. In our complete report available for purchase the company is compared to: Talisman Energy Inc, Canadian Oil Sands Ltd and Encana Corporation.