Unnamed sources familiar with the decision have told Reuters that the Obama administration will announce Friday that it is extending the government comment period for the Keystone XL pipeline. This will likely delay any decision on whether to build the pipeline until after the November midterms: President Barack Obama has said he will make a final decision on whether to allow the pipeline connecting Canada's oil sands region to Texas refiners but several government agencies were expected to weigh-in by the end of May. A dispute over the proposed route of the pipeline has stalled the project in Nebraska, though, and officials will cite that uncertainty in its announcement on Friday justifying the delay. A judge ruled in February that the state had unconstitutionally transferred authority to the governor's office to approve the revised route that TransCanada, the pipeline builder, has chosen for Nebraska.