MarketWatch | Oil tallies third session gain ahead of weekly data on US supplies MarketWatch Oil prices tallied a gain for a third-straight session Tuesday, ahead of a weekly U.S. government data that are expected to reveal a decline in crude supplies. Daily gains have been modest, however, as investors remain skeptical that production cuts ... OPEC oil production jumps in May despite cartel's output agreement as Iraq, Libya pump more Conflicting News Keeps Oil Prices Down OPEC sees oil market rebalancing at slower pace, says output rises |