Oil prices rose in Asian trade today on bargain hunting after prices hit multi-week lows.New York's main contract, West Texas Intermediate (WTI) light sweet crude for delivery in April added 21 cents to 90.33 US Dollars a barrel and Brent North Sea crude for April delivery increased 34 cents to 110.43 US Dollars.Brent prices yesterday reached 109.61 US Dollars a barrel — the lowest point in six weeks, and WTI prices hit a two-month trough of 89.51 US Dollars a barrel.