SINGAPORE: Oil prices nudged higher on Friday and are on track for a weekly gain of more than 1 percent, as tensions in the world’s top oil-producing region, the Middle East, and a restart in Gaza ceasefire talks in the coming days kept traders on edge. Brent crude futures climbed 18 cents, or 0.2 percent, to $74.56 a barrel by 6:42 a.m. Saudi time while US West Texas Intermediate crude was at $70.34 a barrel, up 15 cents, or 0.2 percent.