Worries over global oil pricing and pipeline constraints are hanging over the energy sector as U.S. companies begin to report quarterly results, with many producers’ shares trading lower on the year. Crude oil is dispensed into a bottle in this illustration photo June 1, 2017. Third-quarter profits for oil producers generally should be higher than a year ago, because the average price per barrel was up about 44 percent over the same period last year. But now oil prices are headed for their third straight weekly decline, extending a slide on concerns that slower global economic growth and the U.S.-China trade war could dent demand. U.S. crude CLc1 is on track for a decline of roughly 9 percent for the month, while the S&P 500 energy index .SPNY is down about 12 percent so far in October compared with the benchmark S&P 500’s […]