MarketWatch | Oil prices extend losses as concern grows over still-heavy MarketWatch Oil futures slid anew on Wednesday, underscoring investors' belief that the extended production caps by major producers and the summer driving season in the U.S. won't do much to crimp still-heavy global supplies. After Thursday's plunge in the wake of ... Oil falls as rising Libyan, US output undermines cuts Oil prices slip further as traders seek bigger production cuts Oil Lingers Below $50 as Market Seeks Sign OPEC Cuts Are Working |