Oil prices tumbled on Tuesday as the market reassessed the latest pricing announcement from Saudi Arabia and banks scrambled to hedge outstanding derivative positions. Brent, the global oil marker, hit a four-year intraday low, while West Texas Intermediate, the US benchmark, declined to its lowest level since October 2011. More On this story Game time at last in the global oil market Oil companies fall as crude prices slide Oil slides after Saudi cuts prices in US Video Opec resists falling oil prices action Oil news headlines On this topic Trading Post Oil slide makes for ‘messy’ October The Monday Interview Eyal Aronoff Izabella Kaminska Oil’s game of chicken Oil price fall hits Eni operating profit IN Commodities China fines slow progress on shale gas Irish beef set to overcome ‘mad cow’ bans Stevia adds spice to sugar ‘fat’ debate JPMorgan ‘still in physical commodities’ ICE December Brent […]