It's the first time below the century mark for U.S.crude since July and is at least partly being blamed on dull demand thanks to refinery maintenance work. At the same time, domestic output is surging thanks to shale production.
November crude is off nearly $1 this morning and more than $10 since Labor Day to $99.85 per barrel.
AAA's daily report has national regular gasoline prices down to $3.349 per gallon vs. $3.486 a month ago and $3.676 a year ago.
USO -0.9% premarket.