By Katya Golubkova TOKYO, Feb 5 (Reuters) - Oil prices fell on Thursday after the U.S. and Iran agreed to hold talks in Oman on Friday, easing concerns of a ​potential military conflict between them that could disrupt supply from the key Middle East-producing region. Brent ‌crude futures fell $1, or 1.4%, to $68.47 per barrel at 0152 GMT. U.S. West Texas Intermediate crude prices fell 91 cents, ‌or also 1.4%, to trade at $64.23. Oil prices surged about 3% on Wednesday after a media report suggested the ...