Oil prices ticked up on Tuesday alongside rising European shares and amid reports of a blast in Saudi Arabia, trading near 11-month highs.
Brent crude was up 32 cents, or 0.6%, at $56.20 by 1433 GMT, while US crude rose 22 cents, or 0.4%, to $52.99.
Both contracts rose nearly 1% on Monday and are set to post the third monthly rise in a row.
Prices edged up after reports of a blast in the Saudi Arabian capital Riyadh, although the cause remains unclear.
In Europe, gains in financial services and chemical sectors helped stocks rise. Risk assets such a equities and oil often move in tandem.
