North Dakota's Sen. John Hoeven is pushing the Keystone XL pipeline project to carry oil from Canada to Texas Gulf Coast refineries during the Republicans' weekly radio and Internet address.
President Barack Obama faces a Feb. 21 deadline to decide whether the pipeline is in the national interest.
The GOP has been pounding him on the issue, saying it's a question of whether he wants to create jobs and import energy from a close friend and ally, or lose jobs and see Canadian oil go to Asia.
Hoeven said Saturday the $7 billion pipeline expansion will reduce the nation's dependence on oil from the Middle East and keep down the cost of fuel for Americans.
Plans call for the pipeline to pass through Montana, South Dakota, Nebraska, Kansas and Oklahoma.