The two main Bakken pipeline markets weakened for the seventh time since April 30, bringing differentials to their lowest levels of the year. Bakken crude oil prices fell across the board on Friday, as high stocks in Canada drove down differentials for both heavy and light grades. Williston Basin Bakken fell 10 cents/barrel, while Bakken at Guernsey and at Clearbrook were assessed down $1.05/b at the calendar month average of NYMEX light sweet crude (WTI CMA 1st month) minus $5/b and WTI CMA minus $7/b, respectively. After rising slightly on April 29, the pipeline markets have fallen by $3.50/b over the past week and a half, bringing each to their largest discount since December 31 when Guernsey hit minus $7.10 and Clearbrook hit minus $9/b. “Bakken weakness at Clearbrook is a reflection of train disruptions causing oil to tend back to the more reliable markets (pipelines), parity in pricing, […]