Oil markets fell ahead of an OPEC meeting scheduled later today as investors turned their attention to the global growth outlook.

During the meet, a 30-million barrel-a-day cap on output for the first half of the year is expected to be levied for all 12 OPEC members, keeping production near three-year highs.

Brent crude slipped 31 cents to $109.19 a barrel by 0618 GMT, while US crude fell 14 cents to settle at $100.

Earlier the US Federal Reserve warned the agitations in Europe posed a risk to the US economy, reports Reuters.