Based in Houston, Texas, Marathon Oil has activity in North America, Europe and Africa. The Company has three reportable operating segments, each of which is organized and managed based primarily upon geographic location and the nature of the products and services it offers. The three segments are as follows:

• North America Exploration and Production (E&P) - explores for, produces and markets liquid hydrocarbons and natural gas in North America.
• International E&P – explores for, produces and markets liquid hydrocarbons and natural gas outside of North America and produces and markets products manufactured from natural gas, such as liquefied natural gas (LNG) and methanol in Equatorial Guinea.
• Oil Sands Mining – mines, extracts and transports bitumen from oil sands deposits in Alberta, Canada, and upgrades the bitumen to produce and market synthetic crude oil and vacuum gas oil.