Groundstar Resources Limited explores for, develops, and produces oil and gas properties in Canada. The company was formerly known as Gramara Mercantile Corporation Ltd. and changed its name to Groundstar Resources Limited in July 1973. Groundstar Resources Limited was incorporated in 1968 and is headquartered in Calgary, Canada. Address: 430 - 440 2nd Avenue SW, Calgary, AB, Canada, T2P 5E9