Linn Energy LLC

LINN Energy's diversified asset base is comprised of four core operating areas—mid-continent, including Granite Wash, Permian Basin, Michigan and California. It has interests in more than 9,000 producing wells across the U.S., as well as a multiyear inventory of development opportunities to maintain and grow production and reserves. LINN's two key organic growth drivers are the Permian Basin, which it grew substantially through 2010 acquisitions and its horizontal drilling program in the Granite Wash trend.