West Texas Intermediate oil futures bounced off a six-month low struck in the previous session on Monday, as investors monitored geopolitical concerns in Iraq, Libya and Eastern Europe.
On the New York Mercantile Exchange, crude oil for delivery in September picked up 0.3%, or 29 cents, to trade at $98.18 a barrel during European morning hours. Prices held in a narrow range between $97.63 and $98.21.
U.S. oil futures fell to $97.09 a barrel on Friday, the weakest level since February 5, before coming off the lows to settle at $97.88, down 0.3%, or 29 cents.
Nymex oil prices were likely to find support at $97.09, the low from August 1 and resistance at $99.85, the high from July 31.
Elsewhere, on the ICE Futures Exchange in London, Brent oil for September delivery tacked on 0.17%, or 18 cents, to trade at $105.02 a barrel.
London-traded Brent futures hit $104.39 a barrel on Friday, the weakest level since April 2.
In Iraq, rebels from the Islamic State seized control of the Ain Zalah oilfield in the northern part of the country over the weekend after inflicting their first major defeat on Kurdish forces.
Meanwhile, in Libya, eight fuel tanks caught fire amid heavy fighting near Tripoli’s international airport between rival militias over the weekend.
Elsewhere, in Ukraine, government forces seized two towns on the outskirts of Donetsk from pro-Russia separatists on Saturday.