India, June 4 -- Oil prices were slightly lower on Wednesday after gaining for two days amid escalating geopolitical tensions, stuttering U.S.-Iran nuclear talks and wildfires in Canada's energy heartland of Alberta.

Benchmark Brent crude futures slipped 0.3 percent to $65.44 a barrel in European trade while WTI crude futures were down 0.3 percent at $63.24.

Supply concerns eased somewhat as rains slowed the growth of some blazes that had disrupted Canadian crude production.

According to Bloomberg, one Canadian operator restarted a site after shutting down last week.

Meanwhile, data from the American Petroleum Institute proved to be a mixed bag, with oil stocks falling again last week, while fuel inventories gained.

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