Marathon: 50 years in Alaska - Timeline of key events for Marathon in Alaska

• 1954: Marathon, then the Ohio Oil Co., and partners file for leases in the Swanson River area

• 1957: Swanson River oil field discovery — Alaska’s first big oil strike

• 1959: Kenai gas field discovery — the largest gas field in Cook Inlet with cumulative production to date of over 2.3 trillion cubic feet

• 1965: Trading Bay and McArthur River oil field discoveries — Marathon’s first offshore oil discoveries in Cook Inlet

• 1967: Beaver Creek gas field discovery — in the Kenai National Wildlife Refuge; and Dolly Varden platform installation — part of the McArthur River field, this was the first Marathon-operated offshore platform in Cook Inlet

• 1969: Kenai LNG facility dedication and first LNG cargo delivery to Japan — the only LNG export facility in the United States, and the first source of LNG to Japanese markets

• 1979: Cannery Loop gas field discovery — operated in quiet coexistence among residents near the city of Kenai

• 1986: Steelhead platform installation — designed and installed by Marathon, this is the largest offshore platform in Cook Inlet

• 1998: Wolf Lake gas field discovery — the first new gas discovery brought to the Cook Inlet market since 1979

• 2000: Glacier drilling rig commissioned — a specially designed drilling rig for Marathon’s Cook Inlet needs, designed to minimize costs and environmental impacts, the Glacier rig has drilled more than 30 wells and 250,000 feet of hole

• 2002: Ninilchik gas field discovery — the largest gas discovery in Cook Inlet in 20 years

• 2004: Marathon’s 50th year on the Last Frontier