Premier Alison Redford says a review of the massive pipeline from Alberta to Texas won't kill the project. Redford stands behind the project after the U.S. State Department announced plans to re-examine the Keystone XL Pipeline's route after protests on both sides of the border.

Groups in Canada and the U.S. are concerned about the source of the oil and the safety of the pipeline -- especially in Nebraska's Sandhills region.

"It is disappointing. Alberta is steadfastly committed to this project," said Redford. "My government will continue to advocate that we are the safest and most secure responsible source of oil for the United States."

Redford will lead a delegation to Washington and New York next week to talk about the oilsands, but they won't be promoting the pipeline project.

Prime Minister Stephen Harper weighed in saying he's "disappointed" with news that the U.S. State Department is delaying its decision on whether to approve the pipeline project.

It's estimated the review won't be done until 2013.