Turkish procurement of liquefied natural gas has seen a sudden uptick this month, as the East Mediterranean hub seeks LNG for supply security in the event that Russian pipeline flows are disrupted this winter, sources said. The Biden administration sanctioned Russia's Gazprombank, its six foreign subsidiaries, and numerous other financial institutions and officials to support Ukraine's war effort on Nov. 21. Gazprombank, Russia's largest non-designated bank, plays a key role in processing payments for the country's natural gas exports. Turkey was seeking an exemption from US sanctions on Russia's Gazprombank to continue importing Russian gas, according to Energy Minister Alparslan Bayraktar on Nov. 26. The Turkish foreign ministry is negotiating with the US for a waiver ahead of the winter peak demand.