Union Pacific Corporation (NYSE: UNP) and Norfolk Southern Corporation (NYSE: NSC) submitted an amended merger application to the Surface Transportation Board seeking approval to create a transcontinental railroad. The companies estimate the combination would generate $3.5 billion in annual savings for shippers.

The revised application uses traffic data from all six North American Class I railroads rather than sample data, representing what the companies describe as the most comprehensive analysis in rail merger history. The merger would connect eastern and western United States rail networks with minimal overlap.

Union Pacific CEO Jim Vena stated that the merger "enhances competition and delivers real public benefits that make America's supply chain stronger." Norfolk Southern President and CEO Mark George emphasized that the combination focuses on growth through single-line rail service.

The companies project the merger would remove approximately 2.1 million trucks from roads by shifting freight to rail transport. The amended application increases anticipated premium intermodal lanes from six to seven, adding a new route connecting Northern California and the Southeast.

Employment projections estimate 1,200 net new union jobs by the third year, up from 900 in the original application. The companies commit to preserving all existing union positions at the time of merger completion.

Regarding the Terminal Railroad Association of St. Louis, where Union Pacific owns 42.84% and Norfolk Southern owns 14.29%, the companies committed to divest or relinquish control as a merger condition.

The transaction remains subject to STB review and approval. The companies expect completion in the first half of 2027, according to the press release statement.