Whiting Canadian Holding Company ULC is an independent energy company focused on the exploration, exploitation, acquisition and production of crude oil and natural gas in the United States. The Company has developed an oil and natural gases asset base of proved reserves, as well as a portfolio of development and exploratory drilling opportunities. Its oil and natural gas reserves and operations are concentrated in the Williston Basin of North Dakota. As of December 31 2012, it had approximately 164,700 net acres under lease, of which approximately 154,400 net acres were in the Bakken oil play in the Williston Basin of North Dakota and Montana. As of December 31, 2012, it had estimated proved reserves of 80.9 million barrels (MMBbls) of oil and 83.1 billion cubic feet (Bcf) of natural gas. The Company's Williston Basin acreage is located primarily in Dunn, McKenzie and Williams counties, of North Dakota. The Company's primary geologic target is the Bakken Pool.