On February 27, 2019, WLF filed an amicus brief in the U.S. Supreme Court, urging it to overturn a Ninth Circuit wage-and-hour ruling that could result in oil and gas companies facing hundreds of millions of dollars in back-pay liability. WLF argued that the Ninth Circuit improperly rejected a half century of federal law governing the wages paid to employees stationed on off-shore oil platforms. The issue is whether federal law or California law should govern wage payments to employees working on platforms located on the outer continental shelf off the coast of California. Before the Ninth Circuit’s ruling, all courts agreed that federal law applied. The Ninth Circuit applied California law, under which employees who do not leave their job site at night must be paid for all 24 hours in a day, including time spent sleeping. WLF argued that a 1953 federal law dictates application of federal law and that employers have complied fully with federal wage-and-hour standards.