Longtime shale boss and North Texas energy magnate Scott Sheffield said he’s no longer interested in joining Exxon Mobil Corp.’s board after the U.S.

Former Pioneer Natural Resources CEO Scott Sheffield told Hart Energy, “For now, I remain one of Exxon’s largest individual shareholders and as such will consider other options.”

The U.S. Federal Trade Commission on Thursday reversed bans on the CEOs of takeover targets joining the boards of Chevron and Exxon Mobil that the Biden administration made a condition of clearing the oil giants' deals to buy two oil producers.