NSC merger would significantly expand Union Pacific's rail network, potentially challenging the dominance of BNSF Railway, which Berkshire Hathaway acquired in

UNP and NSC are in early merger talks, eyeing a historic West-to-East freight line. However, regulatory hurdles loom large.

Union Pacific Considering a Norfolk Southern Buyout, Report Says. Here’s What Will Matter. Union Pacific is in talks to merge with Norfolk Southern, The Wall Street Journal reported Thursday, in a deal that would shake up the railroad business in America.