Reliance Petroleum Limited is an Indian petroleum and gas company that was founded in 2008 as a subsidiary of Reliance Industries Limited, one of India's largest private sector companies. RPL was formed to build a large, complex petroleum refinery and polypropylene plant in Gujarat. The refinery was completed ahead of schedule in 36 months and made Reliance one of the largest global refiners. In 2009, RPL merged with its parent company Reliance Industries Limited to create operational and financial synergies and consolidate its position as an integrated energy company.