The merger would create the United States’ first coast-to-coast rail network, spanning 50,000 miles and 43 states.
https://www.nytimes.com/2025/07/29/busi ... erger.html
Because of this, speculation is that BNSF will try and buy CSX. Odds seem to slightly lean towards the UP-NS deal going through. But one thing is for certain….. a lot of scrutiny will happen in the meantime.