Oil prices gained on Tuesday as fresh U.S. sanctions on Russian oil disrupted exports. OPEC+ Plays the Waiting Game as Stock Builds Loom Large - This winter’s LNG markets are unlikely to replicate last year’s tightness as key Asian buyers have built up sufficient inventories ahead of Q4 2025 and have minimized spot purchases in October. - South Korea, having imported a whopping 5 million tonnes LNG in August, has been winding up imports in recent months amidst ample stocks, whilst Chinese LNG imports were 15% lower year-over-year in…