Indonesia

Marathon holds approximately 1.8 million net acres (3.3 million acres gross) across the Pasangkayu, Bone Bay and Kumawa blocks in Indonesia.

Pasangkayu

The Company holds a 70 percent working interest in the 870,000 acre Pasangkayu Block, located on and offshore the island of Sulawesi in the Makassar Strait, directly east of the prolific Kutei Basin oil and gas production region.

Approximately 23 percent of the block is located on Sulawesi, with the remaining 77 percent in water depths up to 7,200 feet. Water depths for the prospects range from 1,500 feet to 6,000 feet. Marathon signed a Production Sharing Contract with the Indonesian government in 2006.

The Company completed 3-D seismic acquisition in 2008. Marathon leads a consortium of
six companies, which secured a two-year rig contract for Indonesia, and will commence drilling in 2010. Two wildcat wells are planned for Pasangkayu in 2010. The consortium has the option to extend this rig contract. The block contains more than 1 bboe gross unrisked resource potential.

Bone Bay

Marathon also holds a 49 percent interest and operatorship in the Bone Bay Block offshore South Sulawesi. Following government approval of a transaction already filed, Marathon's participating interest will rise to 55 percent. The block was awarded in November 2008 and covers an area of approximately 1.23 million acres. It is a high-potential, underexplored area with water depths ranging between 165 and 6,500 feet.

The Bone Bay Block is about 200 miles southeast of Marathon's Pasangkayu Block. Marathon began acquiring 2-D seismic data in late 2009. Drilling is planned for 2011.

Kumawa

In May 2009, Marathon entered into a PSC with the Indonesian Government for a 49 percent interest in the Kumawa Block. Following government approval of a transaction already filed, Marathon's participating interest will rise to 55 percent.

The Kumawa Block encompasses approximately 1.24 million acres and is offshore West Papua, Eastern Indonesia, in the Semai region, approximately 180 miles south of the producing Tangguh LNG facility. The Kumawa Block is a highpotential, underexplored area with water depths ranging from 2,400 to more than 4,000 feet. Current exploration plans for the Kumawa Block call for the acquisition of 2-D seismic in early 2010, followed by drilling operations in 2011/2012.

Marathon International Petroleum Indonesia Limited
Beltway Office Park
Building A, 4th Floor
Jalan T.B. Simatupang No. 41
Jakarta 12550 - Indonesia
Phone: +62 21-789-1622
Fax: +62 21-7884-3214

Indonesia Fact Sheet (PDF 2MB)