Nigerian oil output rose last month following repairs to infrastructure that had been damaged by militant attacks. An average of 1.53 million barrels a day was pumped in June, up about 90,000 a day from May. Militants have resurfaced this month, with the Niger Delta Avengers group claiming attacks on five crude-pumping facilities overnight Sunday. West Texas Intermediate oil for August delivery slipped $1.59 or 3.2 percent, to $47.40 a barrel on the New York Mercantile Exchange. There was no settlement on the Nymex Monday because of the U.S. Independence Day holiday. Brent for September settlement fell $1.40, or 2.8 percent to $48.70 a barrel on the London-based ICE Futures Europe exchange. The global benchmark crude traded at a 61-cent premium to WTI for the same month. Gasoline stockpiles along the U.S. East Coast surged to a record 72.5 million barrels in the week ended June 24, according to […]