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TUESDAY, AUGUST 18, 2026   |   SPECIAL REPORT & ANALYSIS

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STB Restarts UP/Norfolk Southern Merger Review, Opening the Real Competition Fight

Farm shippers now get their best chance to challenge rates, access and service.

Analysis  ·  August 18, 2026

The Surface Transportation Board’s (STB) decision to restart its review of Union Pacific’s proposed acquisition of Norfolk Southern is an important procedural victory for the railroads — but it is not an endorsement of the merger. Bloomberg Government’s Zach Williams reports that the STB on Tuesday lifted the abeyance imposed in May, allowing both the merger review and the environmental process to move forward. The Board’s own merger page confirms that its Aug. 18 decision establishes the procedural schedule and formally removes the proceeding from abeyance.

UP and Norfolk Southern have cleared the paperwork gate; now they have to clear the much higher competition gate. When the STB accepted the revised application in May, it simultaneously demanded more information on whether the combination would enhance competition, protections for shippers losing carrier choices, service assurances, gateway access, market-share projections and the possibility that the deal could trigger further consolidation. Those are not peripheral questions — they go directly to the stricter standards adopted by the STB after the disruptive railroad mergers of the 1990s.

THE COMPETITION TEST THE RAILROADS MUST MEET

The central test is unusually demanding: The companies must demonstrate that the merger enhances competition, not merely that it avoids eliminating too much competition. The 2001 merger rules deliberately raised the bar for additional Class I consolidation and require greater accountability for claimed service improvements and public benefits.

That creates the fundamental contradiction UP and NS must overcome. They describe their combination as essentially an “end-to-end” merger with little overlapping track, arguing that a single railroad stretching from the West Coast through the eastern U.S. would eliminate interchange delays and compete more effectively against trucking. The companies estimate that eliminating handoffs could save 24 to 48 hours on some movements, shift about 2.1 million truckloads to rail and produce roughly $3.5 billion in annual savings for shippers. Those are company projections that regulators and opponents will now have months to challenge.

Figure 1. What the applicants promise. Company projections filed with the STB; none has yet been tested on the record. Source: Union Pacific and Norfolk Southern merger filings and up-nstranscontinental.com.

WHAT THE APPLICANTS ARE TELLING THE BOARD

The railroads have not softened their case. In their second round of supplemental filings on July 27, Union Pacific Chief Executive Jim Vena said the companies were “more confident than ever that creating America’s first transcontinental railroad is good for America,” and that the merger “will provide our customers faster, more reliable and efficient coast-to-coast service from day one.” Norfolk Southern President and CEO Mark George has framed the case in supply-chain and highway terms: “A stronger supply chain makes American businesses more competitive. Shifting freight from road to rail reduces wear on taxpayer-funded roads, improves safety, relieves congestion and lowers emissions.”

The applicants’ answer to the competition problem is voluntary commitments rather than divestiture. The July filing expands Committed Gateway Pricing by “doubling the number of eligible shipments, and extending benefits to bulk unit train shippers,” and pledges to preserve Class I options for 3-to-2 as well as 2-to-1 shippers “where they can legally grant access to another railroad.” The companies say “no prior rail merger has included a similarly broad commitment to preserve 3-to-2 access.” Vena has described the package as “additional assurances” built from customer feedback and the Board’s own comments, alongside a jobs guarantee — “every union employee with a job at the time of the merger will continue to have one” — about 1,200 net new union positions by year three and $5.6 billion of combined annual infrastructure reinvestment. The companies are still targeting a mid-2027 close.

The gap between the two sides is not really about facts yet — it is about who bears the burden of proof. UP and NS are asking the Board to accept forward-looking modeling of network benefits and a set of self-enforcing commitments. Opponents are asking the Board to require evidence, measured at the shipper level, that competitive options survive the transaction. Under the 2001 rules, that burden sits with the applicants.

Table 1. The applicants’ case and the farm-shipper rebuttal, issue by issue. Sources: UP/NS merger filings and news releases; NGFA; AFBF; joint shipper motion of Aug. 6, 2026.

WHY AGRICULTURE IS THE HARDEST PART OF THE CASE

Agriculture may become one of the toughest parts of the case. Farm and grain interests argue that physical track overlap is the wrong measure of competition. Grain elevators, fertilizer plants, ethanol facilities and processors often have one practical railroad at origin, making competition between routes, gateways and connecting carriers unusually important. American Farm Bureau Federation analysis says agriculture already has limited transportation alternatives in many regions and warns that eliminating independent carriers at interchange points could further weaken shipper bargaining power.

That concern has hardened into organized opposition. The National Grain and Feed Association (NGFA) last week concluded that the application does not meet the 2001 merger standard (link). NGFA specifically challenged the railroads’ proposed Committed Gateway Pricing system, which is intended to preserve certain competitive routings through Chicago, St. Louis, Memphis and New Orleans. NGFA argues that the mechanism largely preserves some existing choices rather than creating new rail-to-rail competition — and would apply to only a subset of shippers. The Fertilizer Institute and several chemical, fuel and industrial shipper groups have also urged rejection.

Figure 2. The proposed transcontinental network and the four interchange gateways covered by Committed Gateway Pricing. Route lines are schematic. Source: UP/NS merger application materials; Ag Policy & Markets Daily.

AGRICULTURE’S EXPOSURE, BY THE NUMBERS

The farm sector’s objection rests on concentration data, not on sentiment. American Farm Bureau Federation analysis finds that roughly 95% of U.S. grain elevators are served by only one railroad, and that the combined carrier would originate about 44% of major-commodity carloads and handle more than a third of national grain movements. AFBF also estimates that close to 60% of Union Pacific’s revenue already comes from traffic priced above 180% of variable cost — the threshold at which the STB treats a movement as potentially non-competitive. Farm and food products make up about one-fifth of total U.S. rail tonnage; railroads moved more than 80 million tons of corn, 26 million tons of soybeans and nearly 26 million tons of wheat in 2023. Revenue above variable cost on farm products more than doubled between 2004 and 2023, from $1.08 billion to $2.44 billion, while grain tariffs plus fuel surcharges rose 10% to 50% over the past decade depending on the commodity.

Figure 3. Agriculture’s concentration exposure. Source: American Farm Bureau Federation Market Intel analysis of STB waybill and carload data.

THE OPPOSITION LINES UP

Farm groups are no longer alone. On Aug. 6, a coalition of the American Chemistry Council, the Alliance for Chemical Distribution, American Fuel & Petrochemical Manufacturers, The Fertilizer Institute and the National Industrial Transportation League asked the Board to deny the application outright, arguing the companies “failed to provide enough information about the merger and its impact to enable the Board to find it meets the statutory public-interest standard.” Two rival Class I carriers filed against it as well. BNSF Chief Executive Katie Farmer said UP and NS “have not changed the core of their proposal that fails to demonstrate how combining two major railroads into a single carrier would preserve … competition,” and CPKC’s John Brooks said the merger “would extinguish the independence of two Class I rail competitors.” That alignment matters procedurally: competing railroads can file responsive applications and put operating data in front of the Board that shipper groups cannot obtain on their own.

Table 2. Where the major parties stand entering the evidentiary phase. Sources: company news releases; NGFA; AFBF; TFI; DTN/Progressive Farmer; joint shipper motion of Aug. 6, 2026.

WHO CAPTURES THE EFFICIENCIES?

That is likely to be the key economic question for the STB: Who captures the efficiencies? A coast-to-coast railroad could unquestionably reduce some interchange friction. But if a shipper loses bargaining leverage at the same time, faster service does not automatically mean lower transportation costs. Regulators will have to determine whether savings generated by a larger network would actually flow through to customers or instead become additional railroad margin.

For grain producers, that distinction ultimately shows up in basis. Grain elevators generally cannot absorb permanently higher transportation costs; higher freight tends to be reflected in weaker bids to farmers. Agriculture also has unusually inelastic transportation demand — corn or soybeans harvested in the Plains cannot simply remain on the farm indefinitely because freight rates rise. AFBF notes that rail remains indispensable for moving large volumes of grain, oilseeds, fertilizer and feed over long distances, particularly where barge competition is unavailable.

WHAT IT MEANS FOR THE RAIL MAP

The review is also about the structure of the entire rail industry. Approval would reduce the number of Class I systems operating extensively in the U.S. from six to five and create the first truly coast-to-coast U.S. railroad. The STB has specifically demanded analysis of “downstream merger impacts” — essentially whether creation of one giant transcontinental carrier would place competitive pressure on other railroads to pursue combinations of their own.

Figure 4. Six Class I systems become five. Source: Ag Policy & Markets Daily analysis of STB filings.

THE ROAD AHEAD

There is still a long regulatory road ahead. Under the schedule released Tuesday, notices of intent to participate are due Sept. 4, major comments and responsive applications are due Nov. 18, and preliminary comments from the Justice and Transportation departments are due Dec. 3. Responses extend into February 2027, rebuttals are scheduled for March 29, and final briefs are projected for May 28, 2027. A public hearing and closure of the evidentiary record remain to be scheduled; under the projected timeline, the Board would issue its decision within 90 days after the record closes, subject to completion of the environmental review.

Table 3. The STB’s procedural schedule as set by the Aug. 18 decision. Source: Surface Transportation Board; Bloomberg Government.

ANALYSTS: WHAT TO WATCH

Five markers will tell farm shippers how this case is trending. First, whether the Nov. 18 filings from grain and fertilizer interests put origin-level rate and service data on the record rather than general objections — the 2001 standard rewards evidence. Second, whether the Justice Department’s Dec. 3 comments treat gateway commitments as enforceable remedies or as private contracts the Board cannot police. Third, whether BNSF or CPKC files a responsive application seeking conditions such as trackage rights or forced access at the four gateways, which historically is how captive shippers actually gain protection. Fourth, whether the Board presses the applicants on downstream consolidation, since a finding that this merger forces a defensive BNSF-CSX combination changes the public-interest math. And fifth, the environmental review, which runs on its own clock and can move the closing date regardless of how the competitive case resolves.

Bottom line: Tuesday’s action removes a significant procedural obstacle for UP and Norfolk Southern, but it also starts the phase in which their central argument will be tested under oath, data and shipper testimony. The merger case is no longer primarily about whether the companies supplied enough information. It is now about whether creating a dramatically larger railroad really creates competition — and whether farmers and other captive shippers receive measurable benefits rather than simply being asked to trust that greater scale will eventually help them. Contacts in the grain industry say scars of the 2022 rail system meltdown remain in some minds and there is a feeling it is impossible to look at the merger and not consider what impacts would undoubtedly be on the rail system as a whole. There are six class ones today, but it is a single, integrated national —really North American —system. If you pull on one string, i.e., rail, you impact them all.

AG POLICY & MARKETS DAILY   |   SPECIAL REPORT  |  RAIL CONSOLIDATION & AG FREIGHT — TUESDAY, AUGUST 18, 2026