STB Keeps the Union Pacific–Norfolk Southern Merger Alive: Build a Shipper Competition Baseline Now

The Surface Transportation Board's refusal to dismiss the proposed Union Pacific–Norfolk Southern merger does not predict final approval. It does start a more urgent clock for shippers. Chemical, fertilizer, and agricultural companies should document today's rates, service, interchange performance, and competitive alternatives now—before a transaction or its remedies changes the network they are trying to measure.

The proposed combination would create the first end-to-end transcontinental U.S. freight railroad, joining more than 50,000 route miles across 43 states. Union Pacific and Norfolk Southern argue that a unified network would eliminate handoffs, improve reliability, and shift freight from highway to rail. Their stated benefits are substantial: an estimated $3.5 billion in shipper savings, about 2.1 million trucks removed from roads, and the elimination of interchange steps that can add 24 to 48 hours to transit time.

Those projections deserve testing against a clean pre-merger record—not against memories, anecdotes, or blended annual averages.

What the STB Decision Means for Shippers

Supply Chain Dive reports that the STB denied requests from shipper groups to dismiss the application, allowing the review to continue. Chemical and fertilizer interests are among those warning that the combination could reduce competition. The procedural decision keeps the proposal alive, but it does not settle whether promised public benefits outweigh competitive risks.

That distinction matters. A shipper does not need to predict the STB's verdict to prepare. It needs evidence showing which origins and destinations have genuine carrier choice today, what that choice costs, and how reliably each option performs.

Historical experience makes the exercise more than paperwork. SupplyChainBrain notes that the combined system could control roughly half of U.S. rail shipments. It also cites a Wayne State University analysis finding that the 1996 Union Pacific–Southern Pacific merger doubled rail transit times and degraded performance across nearly every metric. Today's operating plans and regulatory rules differ, but the lesson is durable: once disruption begins, reconstructing a credible "before" picture is painfully difficult.

Build the Baseline at Lane Level

A useful competition baseline is not a network map with colored lines. It is a lane-level operating record tied to contracts, invoices, shipment events, and feasible alternatives. Start with the highest-spend and most operationally sensitive lanes, then capture the following five dimensions.

1. Rates and Commercial Terms

Record the base line-haul rate, fuel surcharge formula, switching charges, demurrage, accessorials, minimum-volume commitments, escalation clauses, and contract expiration date. Normalize the total to a common unit such as dollars per car or dollars per ton. Preserve the original tariff or contract version so a future comparison cannot be dismissed as an accounting change.

Spot quotes and truck alternatives belong in the file too. They establish the actual cost of avoiding a rail service failure, not an abstract modal benchmark.

2. Carrier and Switching Options

For every facility, identify the serving railroad, any physically connected second carrier, the nearest practical interchange, and whether reciprocal switching is available or could be requested. Separate a technically possible route from a commercially usable one. An alternate carrier that requires new track, lacks equipment, or cannot quote the commodity within the required window is not effective competition.

This point may become central to remedies. FreightWaves reports that the applicants proposed a mechanism allowing customers to seek STB relief through reciprocal switching if service deteriorates during integration. A shipper will be better positioned to use any such protection if it can prove the prior service level and the operational feasibility of the alternate route.

3. Service Frequency and Reliability

Capture scheduled and actual train frequency, pickup consistency, loaded and empty-car cycle time, transit-time distribution, missed switches, and exception duration. Medians alone conceal damaging tail performance, so report the 90th percentile and the share of shipments arriving outside the committed window.

For plants with limited track capacity, record inventory consequences as well: production curtailments, storage overflow, emergency trucking, and customer penalties. This connects a rail metric to an economic impact.

4. Interchange and Terminal Dwell

Document each handoff, gateway, terminal, and average dwell period using shipment event data. The applicants' promise to remove 24 to 48 hours of interchange time can then be tested lane by lane. Some through lanes may benefit from a single-line move; others could experience congestion or lose the leverage created by competing gateways.

Do not aggregate all interchanges. Averages across dozens of terminals will obscure the precise junction where a chemical tank car or grain hopper repeatedly stalls.

5. Alternative-Carrier Access

Map the next-best rail, truck, transload, barge, and intermodal option for each critical lane. Include capacity, lead time, equipment compatibility, hazardous-material restrictions, and the incremental delivered cost. For fertilizer and grain, seasonality is essential: an alternative that works in February may have no capacity during planting or harvest peaks.

Model the Exposures That Matter Most

Chemical shippers should prioritize captive plants, hazardous-material routing, tank-car cycle time, and emergency response constraints. Fertilizer companies should test spring demand surges, unit-train capacity, and access to competing gateways. Agricultural shippers should model harvest peaks, export-terminal windows, storage limits, and the cost of missed vessel cutoffs.

For each lane, run three cases: the promised single-line improvement, a neutral integration, and a disruption case. Translate changes in transit and dwell into working capital, fleet requirements, inventory buffers, and truck conversion costs. That turns the merger question from a political debate into an executable contingency plan.

Preserve Evidence Before the Network Changes

Create a dated snapshot now and refresh it monthly through the STB review. Assign owners across transportation, procurement, plant operations, finance, and legal. Keep source documents alongside calculated metrics, define every field, and flag missing event data. If a remedy, rate challenge, or service complaint becomes necessary, contemporaneous evidence will carry more weight than a spreadsheet rebuilt after the fact.

The merger may produce faster routes for some shippers and weaker leverage for others. Most companies will experience a mix. The winning posture is neither blanket support nor blanket opposition; it is the ability to prove what changed, where it changed, and what the change cost.

CXTMS brings rates, shipment milestones, carrier performance, and exception costs into one operational record so logistics teams can build that evidence before network conditions move. Request a CXTMS demo to create a lane-level competition baseline and turn rail uncertainty into measurable decisions.