Reuters | Oil prices up, US crude at more than two-year high on pipeline outage Reuters PVM Oil Associates strategist Tamas Varga said the spill that shut the Keystone pipeline was helping U.S. crude, flipping prices into backwardation, when front-month prices rise above those for future months, indicating an undersupplied market ... Oil prices are at a two-year high, but out-of-luck Canadian producers are missing out on all the upswing Oil Extends Rally Above $58 as Keystone Outage Cuts US Supply US oil closes at highest in two years |