Something that I noticed but I haven’t see it mentioned. CMQ has track rights on the northern Maine railroad north of Millinocket. Guessing that means CP has track right on the entire NBSR system.
"...As to the Rockford [sic - should be Rockland] subdivision, a non-contiguous line to the rest of the CMQR, the immediate intent will be to maintain the present services between Rockland, ME and Brunswick ME. Changes will be considered in the event of a significant change in the volume of interchange traffic with Springfield Terminal/Pan-Am at Brunswick, or a change in the Amtrak agreement...The only passenger service operating on lines owned or operated by CMQR is the Amtrak service operating on the Rockland subdivision. Amtrak terminates at the Brunswick Terminal at the west end of the line and does not operate over the line. The Rockland line is owned by the State of Maine, and CMQR is under contract to operate and maintain the track between Brunswick, ME and Rockland, ME. There are no plans to make any changes to the operations or management of the Rockland operation that would alter Amtrak's future ability to operate..."