MarketWatch | Oil prices slammed as US crude supply rises MarketWatch Oil prices have traded within a tight range since the start of the year, with investors monitoring the extent to which OPEC members have reduced production. The cartel, along with other key producers including Russia, agreed last year to cut around 1.8 ... Oil prices slip as high stocks overshadow OPEC cuts US crude settles at $53.36, up 25 cents, as OPEC signals possible output deal extension Oil rises modestly in tight trade, boosted by OPEC hopes |