Rep. Greg Pence (R-IN), brother of the former vice president, worked for Marathon Oil, and his household owns up to half a million dollars of Marathon Oil stock.
Pence introduced a bill, passed in H.R. 1, that would allow the EPA to waive Clean Air Act requirements.
https://readsludge.com/2023/04/24/gop-energy-bill-authors-stand-to-profit-from-oil-and-gas-stocks/