India will see an investment of about USD 300 billion over the next decade in setting up of refineries, oil and gas pipelines and expansion of city gas distribution network as it builds infrastructure to cope with the massive demand surge, Oil Minister Dharmendra Pradhan said Tuesday. Speaking at KPMG's ENRich 2018 energy conference here, he said India is the third largest energy consumer in the world after the US and China and its energy demand will grow three-fold by 2040.