Earthstone Energy, Inc. is an independent oil and gas exploration and production company primarily engaged in the exploration, development and production of oil and natural gas properties. Its operating activities are concentrated in the North Dakota and Montana portions of the Williston Basin and south Texas. As of March 31, 2013, the Company�s estimated net proved oil and natural gas reserves were 2,457,000 barrels of oil and condensate and 2,786,000 thousand cubic feet of natural gas. In addition to the Williston Basin, the Company is pursuing a new exploration project in the Nebraska portion of the Denver-Julesburg (DJ) basin. The Company has several areas within the Williston basin where it expects drilling operations to commence and/or continue. These areas are the Banks and Bonetrail Fields in McKenzie County, North Dakota, and the Rush Mountain Field in Sheridan County, Montana.