OMAHA, Neb. (AP) — The Nebraska Supreme Court has refused to hear a direct challenge to the state’s new pipeline siting law.

The Lincoln Journal Star reports the court declined to take quick action. Pipeline opponents had hoped the court would use its power of original jurisdiction.

They’ll return their focus to the backup lawsuit filed in district court.

Nebraska landowners along TransCanada’s proposed pipeline route argue that the law outlining the review process is unconstitutional.

The pipeline opponents say the law doesn’t allow for judicial review and doesn’t spell out what criteria should be considered when a proposed pipeline is being evaluated.

TransCanada’s proposed Keystone expansion  is designed to carry oil from Canada, Montana and North Dakota to the oil storage center in Cushing, Oklahoma, and eventually, from there to the refining hub on the Gulf Coast.  Another leg of the pipeline already moves hundreds of thousands of barrels per day to the refining hub in southwest Illinois.