Crude-oil futures fell slightly in Asia Friday, giving up part of overnight gains as the U.S. dollar's rise against the Japanese yen crimped buying interest, while investors remained cautious pending resolution of the U.S. budget crisis. On the New York Mercantile Exchange, light, sweet crude futures for delivery in January traded at $87.88 a barrel at 0654 GMT, down $0.19 in the Globex electronic session. January Brent crude on London's ICE Futures exchange fell $0.06 to $110.70 a barrel
Crude-oil futures fell slightly in Asia Friday, giving up part of overnight gains as the U.S. dollar's rise against the Japanese yen crimped buying interest, while investors remained cautious pending resolution of the U.S. budget crisis.

On the New York Mercantile Exchange, light, sweet crude futures for delivery in January traded at $87.88 a barrel at 0654 GMT, down $0.19 in the Globex electronic session. January Brent crude on London's ICE Futures exchange fell $0.06 to $110.70 a barrel.

The yen fell against major currencies Friday as expectations of a bolder anti-deflation policy from a post-election government continued to fuel sales of the Japanese currency.

A stronger U.S. dollar versus major currencies like the yen or the euro tends to weaken oil prices as its makes oil more expensive for investors holding those currencies.

Crude futures closed higher overnight, for the first time this week, riding piggyback on equities on hopes that U.S. lawmakers can reach an agreement to avoid a so-called fiscal cliff.

While the fiscal debate has dominated price movements of several assets in recent days, some analysts question whether a resolution will have a sustainable effect on oil prices that remain pressured by a global supply glut and declining demand.

"We feel that avoidance of fiscal cliff has been largely discounted and that any major breakthroughs may simply see a 'buy the rumor sell the news' scenario unfold," Jim Ritterbusch at Ritterbusch and Associates said in a note to clients.

Despite a bleak fundamental outlook, Brent crude prices are currently about 1.80% above last month's closing levels, partly due to tensions between Israel and Hamas in Gaza in mid-November fueling supply concerns that have since dissipated after a negotiated settlement between the two sides.

Nymex reformulated gasoline blendstock for December--the benchmark gasoline contract--fell 136 points to $2.7734 a gallon, while December heating oil traded at $3.0375, 31 points lower.

ICE gasoil for December changed hands at $948.00 a metric ton, down $0.75 from Thursday's settlement.