The Obama administration further delayed its decision on the controversial Keystone XL pipeline project Friday, with no conclusion now likely until after midterm elections are held in November.

President Barack Obama has said he will have the final say on whether to allow the pipeline connecting Canada's oil sands region to Texas refiners, and several government agencies had been given until May to weigh in. This had raised expectations of a final decision by midyear.

But the State Department said Friday it is extending that agency comment period, citing a need to wait until the Nebraska Supreme Court settles a dispute over what path the $5.4 billion TransCanada Corp. project should take.