Explorers added more than 30 oil rigs since start of June U.S. payrolls rose 287,000 in June, most in eight months Oil dropped after U.S. producers increased the number of active rigs to the highest in 12 weeks, raising speculation output declines that have trimmed a global glut may slow. Futures fell as much as 1.3 percent in New York after rising 0.6 percent on Friday. Rigs targeting crude in the U.S. rose by 10 to 351 last week, the highest since April 15, Baker Hughes Inc. said on its website. Money managers cut net long wagers on West Texas Intermediate to the lowest since March in the week ended July 5, Commodity Futures Trading Commission data show. Oil has traded between $44 and $52 a barrel in the last month after almost doubling from a 12-year low in February amid supply disruptions and falling U.S. output. The recovery […]