Oil traders tighten grip with 5-year profit surgeFinancial TimesThe big five have captured a greater slice of the market, the report finds, squeezing out smaller rivals and starting to match the trading volumes handled by some of the world's biggest oi …

US shares fall as oil prices ease, Caterpillar stompedABC OnlineOil prices slipped further on speculation that Russia will not join the Organisation of Petroleum Exporting Countries (OPEC) in curbing production. Shares in heavy machinery maker, Caterpillar …