
Employees and contractors at our Brae platform add profitable production from the North Sea. Other core regions include the U.S., Canada and Equatorial Guinea.

In 2010, Marathon began leasing in the emerging liquids-rich Niobrara Shale play in the DJ Basin. The Company holds approximately 177,000 net acres in the DJ Basin in northern Colorado and southeast Wyoming. The Niobrara Formation is characterized as interbedded rich source rock and brittle chalk beds. The Formation has been a known oil target for years that is now being exploited by new horizontal drilling and stage fracing completion techniques developed in the Bakken and other resource plays.
In early 2011, Marathon assigned a 30 percent undivided working interest in our acreage position in the Niobrara Shale play to Marubeni Denver Julesburg LLC.
Marathon's leasehold position in the Piceance Basin of Colorado includes approximately 9,000 net acres. The acreage, in Garfield County in the Greater Grand Valley Field Complex, is flanked by, and on-trend with, adjacent production.
The primary reservoir is the Williams Fork Formation of the Mesaverde Group, which is characterized as a massive 3,000-foot thick sequence of stacked over-pressured channel sands in a continuous gas accumulation. The target reservoir is encountered at measured depths of 6,500 to 8,500 feet.
Marathon’s commitment to the community is deeply rooted in our core values. Our employee-run Books for Bioko program collects supplies for schools in Equatorial Guinea.
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