Marathon Oil Corporation (Marathon) is a global energy business. We are the fourth largest U.S.-based integrated oil and gas company, with exploration and production operations in the United States, Canada, Angola, Equatorial Guinea, Indonesia, Libya, Norway, Poland and the United Kingdom. Marathon is also the fifth largest refiner in the United States. Our retail marketing system comprises approximately 6,200 retail locations in 18 states.

Marathon has a strong and growing presence in Canada's oil sands through our subsidiary Marathon Oil Canada Corporation. Our oil sands investments include both mining and in situ interests located in the Athabasca region of northern Alberta, as well as upgrading facilities near Edmonton, Alberta.