NEW DELHI, June 19 : Oil prices fell on Friday as prospects brightened for more supply after oil tankers began moving through the reopening Strait of Hormuz following a peace deal between the United States and Iran. By 0328 GMT, Brent crude futures fell 43 cents, or 0.54 per cent, to $79.42 a barrel and U.S. West Texas Intermediate crude slipped 17 cents, or 0.22 per cent, to $76.43 a barrel, with the front-month July contract expiring on Monday. The more actively traded August contract was