Earthstone Energy, Inc. is an independent oil and natural gas exploration and production company. The Company is focused on the acquisition, development, exploration and production of onshore, crude oil and natural gas reserves. The Company's operations are in the upstream segment of the oil and natural gas industry, and are conducted onshore in the United States. The Company's asset portfolio includes activities in the Eagle Ford trend of south Texas and in the Williston Basin of North Dakota and Montana. The Company also owns other operated and non-operated properties in east and south Texas, and eastern Oklahoma. The Company serves as the operator for its Fayette, Gonzales and Karnes acreage with working interests. The Company is a non-operator with respect to its La Salle County acreage with working interests. It is also a non-operator with respect to its properties in the Williston Basin. It is an operator of properties of its oil and natural gas reserves, and PV-10.