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.

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.

The FTC has reopened an order involving Chevron’s proposed acquisition of Hess, and another regarding Exxon Mobil’s proposed purchase of Pioneer Natural Resources after its initial complaints failed to plead any antitrust law violation.