Wentworth Resources Limited, an independent energy company, engages in the exploration, development, production, and transportation of natural gas and other hydrocarbons in Tanzania and Mozambique. It primarily holds 31.94% interest in the Mnazi Bay Concession covering an area of approximately 756 square kilometers in south-eastern Tanzania; and 85% participating interest in the Rovuma Onshore Block in northern Mozambique. The company was formerly known as Artumas Group Inc. and changed its name to Wentworth Resources Limited in September 2010. Wentworth Resources Limited is headquartered in Calgary, Canada.