The price cap on Russian oil imposed by the G7 and other countries continues to eat away at Moscow's energy revenues, according to the British government. To the end of July, the International Energy Agency (IEA) calculated an almost $10 billion drop in Russian oil-export earnings year-on-year, the U.K. Treasury said late on August 4. "The oil-price cap is significantly impacting Russia's ability to use oil to finance its illegal war," the Treasury said, referring to the conflict in Ukraine. The Treasury also quoted Russian government sources as saying that revenue from the energy sector in the first quarter of this year was 45 percent lower than a year earlier.