The bias could be towards the downside, as a wave C from the April 6 high of $60.90 looks incomplete. It is expected to travel below the March 23 low of $57.25.
Brent crude futures for June fell 32 cents, or 0.32%, to $62.88 a barrel.
Both contracts are on track for a 2%-3% drop this week but still far from a low of $60.47 hit two weeks ago. Exerting downward pressure is the decision by the Organization of the Petroleum Exporting Countries (OPEC) and its allies, known as OPEC+, to increase supplies by 2 million barrels per day between May and July.
"If a fulsome framework can be crafted in the coming weeks, significant quantities of Iranian oil will likely hit the market in H2 2021," RBC Capital analyst Helima Croft said in a note this week.
All three major U.S. stock indexes gained some ground and the S&P 500 and the Dow were last in positive territory, with economically-sensitive small caps and transports lagging.