Blue Earth Resources, Inc., through its subsidiary, PetroResources, Inc., engages in the acquisition and asset management of royalty and override royalty interests, and/or non-operating working interests in producing oil and gas properties in the United States. It holds minority interests in approximately 300 wells located in 8 states. The company was formerly known as Century Controls International, Inc. and changed its name to Blue Earth Resources, Inc. in September 2010. Blue Earth Resources, Inc. is based in Inver Grove Heights, Minnesota.