The US benchmark, West Texas Intermediate (WTI) for delivery in July, added 12 cents to USD 103.86 a barrel.
Brent North Sea crude for July gained four cents to stand at USD 110.40 a barrel in London afternoon trading.
"Brent front month futures held fairly steady above USD 110... And are set for a second consecutive week of gains, mainly supported by ongoing tensions in Libya and Ukraine, and solid German GDP data," said analyst Myrto Sokou at the Sucden brokerage in London.
"We expect further consolidation and sideways trading activity in the oil market today as risk appetite remains limited and investors could be cautious ahead of the Ukrainian and European election results."
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