CNBC | Gusher of supply keeps pounding oil prices CNBC A tidal wave of U.S. gasoline and diesel supply is weighing on already weak oil prices, driving crude back toward $30 per barrel — and below. At the same time, U.S. government data show no slowdown in the nation's oil production — at 9.23 million ... Oil dips below $30 a barrel, lowest level in 12 years |