Marathon is an integrated international energy company engaged in exploration and production; oil sands mining; integrated gas; and refining, marketing and transportation operations. Marathon has principal operations in the United States, Angola, Canada, Equatorial Guinea, Gabon, Indonesia, Ireland, Libya, Norway and the United Kingdom. Marathon is the fourth largest United States-based integrated oil company and the nation's fifth largest refiner. Living Our Values guides the Company's approach to managing its business--what it believes in, how it behaves, what it invests in, and the projects and issues it influences and promotes. Marathon's actions, decision and operations must be consistent with the letter and spirit of its commitment to health and safety, environmental stewardship, honesty and integrity corporate citizenship, and a high performance team culture.