Groups are urging State Dept. scrutiny of an Enbridge pipeline they say is moving twice the amount of tar sands oil into the U.S. than it’s permitted for. By Lisa Song In the wake of the Keystone XL decision, environmental activists are seizing the momentum by calling for the cancellation of another tar sands pipeline that has remained largely below the radar. On Tuesday, local and national groups urged the Obama administration to reject Enbridge’s Alberta Clipper pipeline expansion. The pipeline has a permit to carry 450,000 barrels of oil per day from Alberta to Superior, Wisc., but is effectively moving nearly twice that amount—800,000 barrels—because Enbridge has diverted the flow through another pipeline at the U.S.-Canada border.