Oil is likely to stay relatively weak for at least the next year, a Reuters poll forecast on Thursday, suggesting a slowdown in oil production in the United States will not be enough to offset a global supply glut. Reuters monthly survey of 32 analysts predicted North Sea Brent crude would average $60 a barrel in 2015, up 80 cents from the projection in last month’s survey. The North Sea crude oil benchmark has averaged around $56 a barrel so far this year.     Brent prices collapsed to a low just above $45 in January from a high above $115 a barrel, and have recovered gradually over the last three months to trade close to $66 by Wednesday’s close. The price crash has forced some exploration companies to stop drilling for oil and the number of rigs operating in the United States has fallen for 20 weeks […]