West Texas Intermediate oil rose on Monday rebounding from its largest drop in a week since September 2012, while Brent's premium to WTI futures was close to the weakest level in 10 months. May WTI futures gained 69 cents to $93.39 a barrel on the NYMEX and were traded at $93.36 earlier on Monday London session, whereas the Brent's premium was at $11.66 to WTI futures on Monday.