New U.S. pipelines and a revival in Libyan supply are increasing the likelihood that oil prices will slump through year-end after climbing in the first six months. Wall Street analysts tracked by Bloomberg predict West Texas Intermediate oil will average $100 a barrel in the fourth quarter, down 5.1 percent from June 30, while Brent drops 4.8 percent to $107. Violence in Iraq sent Brent to $115.71 in June, its highest level since September, on concern supplies would be disrupted. Brent is poised to decline in part on increased output in Libya as key export terminals were reopened. In the U.S., traders are focused on supplies at Cushing, Oklahoma , the delivery point for the WTI futures contract. Tallgrass Energy Partners LP plans to complete the conversion of the Pony Express pipeline to carry crude to Cushing from Wyoming . Enbridge Inc.’s Flanagan South will connect to the hub […]