Brent futures rose 43 cents, or 0.5%, to settle at US$89.35 a barrel, and US West Texas Intermediate futures gained 28 cents, or 0.3%, to US$85.43 a barrel.
Both contracts were up more than a dollar earlier in the session due to growing concerns about the potential for a supply deficit during the peak summer driving season. "If those compensation cuts get implemented, and Russia switches their export cuts to crude cuts, Opec+ production should trend lower in the second quarter – a period when demand seasonally picks up," UBS analyst Giovanni Staunovo said.
In the Middle East, Iran has vowed revenge against Israel for an attack on Monday that killed high-ranking Iranian military personnel. Iran is the third-largest producer in Opec.
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