Gibson, Dunn & Crutcher partner Ted Olson, a former U.S. solicitor general who served under the George W. Bush administration, has registered as a foreign agent advocating for Saudi Arabia to defeat proposed legislation that would allow U.S. antitrust enforcers to target the Organization of the Petroleum Exporting Countries and its members.

Saudi Arabia, through its U.S. embassy, agreed last month to pay Gibson Dunn a flat fee of $250,000 to prepare a “concise white paper, suitable for public dissemination, opposing” the proposed legislation titled “No Oil Producing and Exporting Cartels Act,” which was introduced this year in the U.S. House of Representatives. The law would expose OPEC to U.S. prosecution for any antitrust violations.