Far from being a villain, big oil is perhaps one of the most important allies for renewable energy. The world’s oil supermajors generate significant levels of cash flow, boost infrastructure networks that span the globe and have the most to lose from falling behind the technology curve. It’s still early in the oil and gas industry’s transition, but the companies that lead this industry are the biggest funders of renewables in the world at the moment. From investing in solar panels to designing genetically engineered algae, take a look here to see where big oil is investing its money.