India, June 19 -- Oil prices were slightly higher on Thursday as speculation grew over a possible U.S. involvement in the Israel-Iran conflict.

Benchmark Brent crude futures edged up by 0.2 percent to $76.87 a barrel in European trade while WTI crude futures were up 0.4 percent at $73.76.

It is feared that a direct U.S. involvement in Israel's escalating air assault could trigger a wider regional conflict and impact the energy infrastructure in the West Asia region.

A U.S. attack on Iran would "radically destabilize the entire situation," warned Russia's deputy foreign minister.

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Meanwhile, the conflict in the Middle East continued, with Iran targeting ...