Get Stock Quote Here Denbury Resources Inc. (DNR) is a petroleum and natural gas exploration and production company headquartered in Plano, Texas. The company's focus is on a method of oil extraction called enhanced oil recovery (tertiary recovery), which utilizes carbon dioxide to extract oil from fields that have been previously exploited. The company's operations are focused in the Gulf Coast and Rocky Mountain regions. As of December 31, 2015 Denbury had 289 million barrels of oil equivalent (1.77×109 GJ) of estimated proved reserves, of which 97.5% waspetroleum and 2.5% was natural gas. The company also has an estimated 1.3 trillion cubic feet of probable carbon dioxide reserves at Jackson Dome. The company's largest producing property is the Cedar Creek Anticline in Montana and North Dakota, which accounted for 25% of daily production in 2015.