Denbury Resources Inc. is an independent oil and natural gas company. As of December 31, 2011, the Company had 461.9 million barrel of oil equivalent of proved oil and natural gas reserves, of which 77% was oil. The Company's oil and natural gas properties are concentrated in the Gulf Coast and Rocky Mountain regions in the United States. As of December 31, 2011, the Company's properties with proved and producing reserves in the Gulf Coast region were situated in Mississippi, Texas, Louisiana and Alabama, and in the Rocky Mountain region were primarily situated in Montana, North Dakota, Utah and Wyoming. In April 2012, it sold certain non-operated assets in the Greater Aneth Field in the Paradox Basin of Utah to Resolute Energy Corporation and the Navajo Nation Oil and Gas Company. In March 2013, it announced the closing of acquisition of producing property interests in the Cedar Creek Anticline (CCA) of Montana and North Dakota.