These secretive investment companies have pumped billions of dollars into fossil fuel projects, buying up offshore platforms, building new pipelines and extending lifelines to coal power plants.
Video of the ruptured underwater pipeline that spilled tens of thousands of gallons of crude oil off Southern California shows a thin crack that could indicate a slow leak that was difficult to initially detect.
The latest spill, thought to be from a decades-old pipeline that connected three platforms to a pumping station in Long Beach, has brought scrutiny to California's aging offshore oil and gas infrastructure.
