Crude prices edged higher Tuesday as concerns over Iranian tensions continued.

Iran said on Sunday that it would limit cooperation with the United Nations and resolved not to halt atomic work after the Security Council voted to impose new sanctions.

The U.S. navy launched on Tuesday a military exercise involving two aircraft carrier strike groups in Persian Gulf spurred the tension between Iran and west countries.

Light, sweet crude for May delivery rose 2 cents to 62.93 dollars on the New York Mercantile Exchange.

Brent crude for May was down 12 cents at 64.29 dollars a barrel on the ICE Futures exchange in London.