Oil prices fell Monday as traders refrained from big moves ahead of a critical meeting of U.S. central bank policymakers later in the week.

Benchmark oil for July delivery fell 33 cents to $97.52 a barrel at midday Bangkok time in electronic trading on the New York Mercantile Exchange. The contract for July delivery rose $1.16 to close at $97.85 a barrel on the Nymex amid concerns about a possible escalation in Syria's civil war.

The Fed has been supporting the U.S. economy by buying $85 billion in bonds every month as part of a plan to keep interest rates low and encourage borrowing, spending and investing. Recent signs of a recovery, however, have raised questions about whether the Fed might start to pull back.

Some investors worry that long-term interest rates could spike when the Fed pulls back, threatening the economic recovery. The Fed will start a two-day meeting Tuesday to discuss the central bank's next steps.

"Ultimately markets are likely to successfully transition to a world of reduced Fed asset purchases but this may take a while. In the meantime market stress is set to remain elevated," said analysts at Credit Agricole CIB in a market commentary.

President Barack Obama's decision last week to provide weapons to rebels fighting the forces of Syrian President Bashar Assad pushed up oil prices Friday. The Middle East is a key source of crude oil and important transit routes cross the region, so conflicts which threaten disruptions in crude production or supply usually push oil prices higher.

Brent crude, a benchmark for many international oil varieties, fell 47 cents to $105.46 a barrel on the ICE Futures exchange in London.

In other energy futures trading on the Nymex:

— Wholesale gasoline fell 0.1 cent to $2.8890 a gallon.

— Heating oil added 1.3 cents to $2.96526 per gallon.

— Natural gas rose 2.4 cents to $3.757 per 1,000 cubic feet.