Berkshire Hathaway is a dip in commodity prices to load up on some of Buffett's favorite oil and gas investments.
Commodity prices boosted the company's big third-quarter cash flow.
Net zero climate policies have forced oil companies to spend more on buybacks than exploration.
President Biden's climate agenda is on a collision course with the nation's energy security needs.
Seven of the top 10 performers in the S&P 500 are oil stocks, which added to outsized gains last year.
The move comes after years of sustained activism from students calling for fossil-fuel divestment.
Two under-the-radar natural gas plants run by Targa Resources are a persistent source of pollution.
Exxon began a dedicated low-carbon business in February focused on reducing emissions.
The complaint against Chevron is likely the first greenwashing case referred to the FTC.
The company is under pressure from investors to address climate change and weak corporate returns.