Brent crude advanced for a second day after Iran and six world powers ended a meeting in Geneva without coming to an agreement on the Persian Gulf nation’s nuclear program, tempering projections of a resolution to the dispute that has cut Iranian oil exports.

Futures rose as much as 1.2 percent in London while West Texas Intermediate oil in New York gained 0.8 percent. International Atomic Energy Agency chief Yukiya Amano is leading inspectors today to Tehran for negotiations. Iran’s talks with permanent members of the United Nations Security Council and Germany over the weekend in Geneva ended without a deal.

Brent for December settlement climbed $1.05, or 1 percent, to $106.17 a barrel on the London-based ICE Futures Europe exchange at 10:54 a.m. in New York. The volume of all futures traded was 19 percent more than the 100-day average. The contract touched $102.98 on Nov. 8, the least since July 2.

WTI for December delivery rose 60 cents, or 0.6 percent, to $95.20 a barrel on the New York Mercantile Exchange. Volume was 37 percent lower than the 100-day average. Futures slipped to $93.07 on Nov. 5, the lowest intraday price since June 24.