US Oil prices rose 5%, their biggest advance in three weeks, after the US government reported a surprise draw in domestic crude stockpiles versus market expectations for a new record high. 
Crude's front-month contract settled up $1.86 at $37.75 a barrel. It rallied to $37.90 earlier, after falling to $35.24 a day ago, its lowest since March 4. The 5.2% gain was the biggest in a day since March 16. 
The front-month in Brent, the European benchmark, settled up $1.97 at $39.84 a barrel. Its session peak was $39.94