Established in 1998 Essar Energy PLC is an India-based energy company with headquarters in Port Louis, Mauritius. The company has diversified itself by entering exploration, production, refinery, and retail business in the power sector. The main business units for Essar Energy are Essar Exploration and Production Business, Essar Oil and Gas Business, and Essar CBM (coalbed methane) Business. The company held state-of-the-art refinery facility at Vadinar in Gujrat. It is India’s second largest refinery located at a single location with a production capacity of 20 million tons per annum.