Money Mngrs stacked the most upside bets in oil since last June.
"Oil price jumped with both WTI and Brent reaching $30 in another volatile day of market positioning. U.S. CFTC report released today showed that money managers stacked the most upside bets in oil since last June. The return of risk sentiment today and any oil gains in the near future may have much to do with these short term bets."