SINGAPORE, June 17 (Reuters) – Oil prices inched lower on Wednesday, extending the previous session’s declines as investors assessed the U.S.-Iran peace deal, though uncertainty over the full resumption of shipping through the Strait of Hormuz limited further falls. Brent crude futures dipped 16 cents, or 0.2%, to $78.80 a barrel by 0340 GMT, while U.S. West Texas Intermediate fell 25 cents,…