Q2 reports that U.S. District Judge Brian Morris of Great Falls says TransCanada Corporation will be allowed to proceed with limited pre-construction activities on its Keystone XL Pipeline until further environmental analysis is finished. On Wednesday, Morris granted the request via teleconference. TransCanada sought the conference in a November 15th court filing. The list of projects was agreed upon by TransCanada and the Billings-based Northern Plains Resource Council, which has sued to block the pipeline.