Chevron Corporation, Texaco, Unocal Incorporated and their affiliates agreed to pay the United States $45.6 million to resolve claims that they violated the False Claims Act by knowingly underpaying royalties owed on natural gas produced from federal and Indian leases from March 1988 to November 2008. The government alleged that Chevron, Texaco and Unocal improperly deducted from royalty values the cost of boosting gas up to pipeline pressures, used affiliate transactions to falsely reduce the reported value of gas taken from federal and Indian leases, and improperly reported processed gas as unprocessed gas to reduce royalty payments. See related Exxon Mobil instance, (“U.S. ex rel. Wright v. Chevron (Underpayment of Natural Gas Royalties)”).