TransCanada Corp announced Monday it would go ahead with construction of part of its Keystone XL oil pipeline that does not require US presidential approval, a stretch from the state of Oklahoma to the US Gulf Coast.

The company also said it will resubmit its proposal for the entirety of the pipeline from Canada’s oil sands to US Gulf Coast refineries that was rejected last month by US President Barack Obama, a move that sparked an election-year row over energy policy and the environment.

The new presidential permit application would include “an alternative route in Nebraska as soon as that route is selected,” as well as an “already reviewed route” in Montana and South Dakota, TransCanada said.

Company president Russ Girling said he also hoped the lengthy environmental review of the original project will mean a shorter approvals process for the rest of the pipeline once a new route in Nebraska is determined that avoids the ecologically sensitive Sandhills area.