Union Pacific and Norfolk Southern are strengthening their case for a historic rail combination by introducing a new package of customer protections as the Surface Transportation Board (STB) continues reviewing their merger application.
The companies submitted a supplemental regulatory filing late Monday, responding to additional information requests from the STB while adding what they describe as an unprecedented level of customer assurances compared with previous rail mergers.
The latest filing shifts part of the merger argument away from broader strategic advantages and toward more specific protections for shippers. This is a critical aspect of the regulatory process, as the STB evaluates not only competition concerns but also service reliability, customer access to alternatives and whether promised benefits will effectively reach rail users.
The filing represents the second of two submission phases and addresses information requested by the STB after it conditionally accepted the companies’ second merger application in late May.
Four new customer commitments
The more than 400-page filing introduces or expands four major commitments:
- Expanded pricing protections, including a larger Committed Gateway Pricing program and broader coverage for bulk unit train customers.
- Additional customer safeguards designed to preserve Class I railroad options for both 3-to-2 and 2-to-1 shipper situations where legally possible.
- Temporary alternative rail access if service disruptions occur during the integration process.
- A new rate relief mechanism if the merger’s expected public benefits are not delivered within the promised timeframe.
Together, these measures aim to address two of the main concerns traditionally associated with major rail mergers: reduced competition and potential service disruptions following integration.
Union Pacific (NYSE: UNP) said the commitments were developed after discussions with customers and consideration of feedback from the STB. CEO Jim Vena argued that the combination would create faster and more reliable coast-to-coast rail service while generating savings that could ultimately benefit consumers.
Positioning the merger as pro-competitive
Union Pacific and Norfolk Southern (NYSE: NSC) are also seeking to present the transaction as an opportunity to improve competition rather than simply increase industry consolidation.
The companies highlight limited route overlap, more direct freight movements, fewer handoffs between rail operators and improved access to ports and international gateways. Their goal is to create a single rail network connecting the U.S. West Coast to the East Coast.
Another key part of the merger package focuses on resolving concerns around terminals and strategic gateways. The companies said they have completed responses to additional STB requests, while a separate binding agreement with Canadian National (NYSE: CNI) is intended to resolve ownership issues involving the Terminal Railroad Association of St. Louis and Kansas City Terminal Railway.
Growing opposition adds pressure
The new commitments come as opposition to the proposed merger continues to increase.
In a July 24 letter to the STB, 24 U.S. senators urged regulators to carefully examine Union Pacific’s acquisition of Norfolk Southern. They raised concerns about potential impacts on consumer costs, service quality and safety.
The STB must now determine whether the voluntary commitments provided by the two railroads are sufficient to address concerns surrounding what would become a major 2-to-1 transcontinental rail merger.
If approved, Union Pacific and Norfolk Southern still expect the transaction to close in mid-2027. However, the final decision will depend heavily on whether regulators believe the proposed competition protections are effective, enforceable and sustainable over time.
For shippers, the most important elements of the filing are not only the strategic arguments behind the merger, but the practical guarantees: additional routing options, backup service solutions during disruptions and a mechanism for rate relief if expected benefits fail to materialize.
The latest filing shows that both railroads understand the outcome of the regulatory battle will ultimately depend on the impact the merger has on customers rather than simply the scale of the combined network.
