Quicksilver Resources Inc. (Quicksilver) is an independent energy company. The Company is primarily engaged in exploration, development and production of unconventional natural gas onshore in North America. Quicksilver owns producing oil and natural gas properties in the United States, principally in Texas, Wyoming and Montana, and in Alberta, Canada. As of December 31, 2008, it had total proved reserves of approximately 2.2 trillion cubic feet equivalents (Tcfe) of natural gas. It also owns approximately 73% of Quicksilver Gas Services LP (KGS), a midstream master limited partnership controlled by Quicksilver. It owns approximately 41% of the limited partner units of BreitBurn Energy Partners L.P. (BBEP), an oil and natural gas exploration and production master limited partnership. In December 2008, Quicksilver announced that it has completed the sale of the Lake Arlington Dry System.