Oil prices edged lower on Tuesday but remained near three-week highs on heightened Middle East tensions and as China showed some signs of economic recovery.
Brent futures dipped 29 cents or 0.35% to $83.27 a barrel by 0912 GMT.
U.S. West Texas Intermediate (WTI) crude for April delivery fell 38 cents, or 0.38%, to $78.08 a barrel. The March WTI contract rose 8 cents or 0.1% to $79.27 a barrel ahead of its expiry during the session.
There was no settlement for WTI on Monday due to a U.S. public holiday.
