Union Pacific Corporation (UNP)

1. Executive snapshot

2. What the company does

Union Pacific moves heavy freight long distances at a lower cost per ton-mile than a truck. Its customers include grain merchants, chemical and plastics makers, utilities, steel and aggregates users, and automakers. So are the intermodal companies and parcel carriers that load containers onto trains. It runs one network and reports one segment (FY2025 10-K).

Follow one carload. A shipper loads a hopper of grain at a Nebraska elevator, and Union Pacific hauls it to a Pacific Northwest export terminal or a Mexican border crossing. About 40% of daily volume is handed to or received from another railroad at some 260 interchange points (Q2 2026 call). Revenue is recognised over the transit time, and the customer pays after delivery. Volume incentives reduce revenue (FY2025 10-K).

Revenue per car varies more than four-fold across the book. An intermodal container earns $1,380 and an industrial carload $3,840. Intermodal is 40% of units but only 20% of freight revenue (derived). When containers grow faster than carloads, the average falls even while price rises, which was the mix headwind management flagged in Q2 2026. Coal has been shrinking out of the book. It was $4.1 billion and 18% of freight revenue in 2014 (FY2016 10-K); coal and renewables was $1.8 billion and under 8% in 2025, on redefined categories.

Labour is the largest cost: compensation and benefits are a third of the $14.7 billion of operating expense. About 83% of employees belong to 13 unions, and median pay was $107,889 (FY2025 10-K).

3. Industry, competitive position & moat

Freight rail exists because, over long hauls, steel wheels on steel rail move a heavy ton far more cheaply than a truck can. The 10-K cites AAR figures putting railroads at three to four times trucks' fuel efficiency. The scarce asset is the right-of-way, assembled over more than a century and impossible to replicate, so profit accrues to the track owners (inferred). Suppliers have some power at the edges: there are two domestic locomotive builders and few rail steel mills, and wages are set by national bargaining (FY2025 10-K).

The market is the corridor, not the nation. Union Pacific and BNSF name each other as the main rail competitor in the West. What decides price is whether a given plant has a second railroad, or a workable truck or barge option.

Competitor figures are from company filings and releases retrieved from the web.

BNSF earns almost the same revenue and moves more units (9.6 million against 8.4 million). Union Pacific still turns that revenue into about $1.8 billion more operating income (derived). That supports the claim of an industry-leading operating ratio.

Outside evidence on pricing power cuts both ways. The AAR reports that inflation-adjusted rail rates were 44% lower in 2024 than in 1981 [web]. A 2019 analysis of the same data found real rates rose about 30% from 2000 to 2017, after the industry consolidated [web]. Union Pacific fits the later pattern: ex-fuel revenue per car rose every year from 2016 to 2025 except 2020, when it held flat while volume fell 7% (derived). The STB found it revenue adequate for 2022–2024, earning above the industry's 10.68% cost of capital for 2024 [web]. That confirms the returns, and it also gives critics who want rate regulation an argument.

The barriers that bind are the right-of-way, STB control of new lines and mergers, and density on existing lanes. In July 2025 a federal appeals court vacated the STB's reciprocal switching rule, which would have opened forced access by a second railroad; Union Pacific was among the challengers [web]. The real threats are substitution and regulation, not a new railroad: autonomous or bigger trucks on publicly funded roads (FY2025 10-K), and merger conditions.

Claims tested: the industry-leading operating ratio is supported. Serving all six major Mexico gateways is unverified. "Growth" is contradicted in part, because 2025 carloads equalled 2016. The industry rewards the low-cost operator whose service is reliable enough to take freight from trucks. Union Pacific is that operator on cost but has not yet proven it on growth.

4. Growth engine

Freight revenue rose 25% from 2016 to 2025, to $23.2 billion, and none of it came from volume. Carloads were 8.44 million in 2016 and 8.45 million in 2025. Fuel surcharge revenue grew from $0.56 billion to $2.3 billion. Ex-fuel revenue per car rose 16%, about 1.7% a year, a figure that blends price and mix (derived). There were no acquisitions, so reported growth is organic. EPS compounded at 10.0% a year against 6.0% for net income: a 29% lower share count and a better operating ratio account for the gap.

Revenue carloads and ex-fuel freight revenue per carload, indexed to 2016. Source: 10-K FY2016–FY2025; ex-fuel figures derived by removing reported fuel surcharge revenue.

No material acquisitions during the period, so organic equals reported. Sources: 10-Ks, Q2 2026 10-Q.

5. Margin, cash & capital allocation

A 59.8% operating ratio leaves about 40 cents of each revenue dollar as operating profit. Most costs are fixed in the short run, and the 10-K warns that demand drops raise unit costs. Precision Scheduled Railroading made labour more variable: train and yard crews fell 3% in 2025 while volume rose 1%. Fuel distorts the ratio, because surcharges add to revenue and expense equally. Diesel added 120 basis points to Q2 2026's 59.7%, and management put the underlying ratio near 58%.

Operating ratio, 2016–2025. 2016 as restated in later filings (63.5% originally reported). Source: 10-Ks.

2022 revenue includes $3.7B of fuel surcharge, against $0.56B in 2016. Commodity groups were redefined between 2016 and 2020.

Cash from operations was $9.3 billion in 2025 on $7.1 billion of net income, helped by $2.5 billion of depreciation and about $0.3 billion of tax deferred by bonus depreciation. Capex is flat in nominal terms at $2.9–3.8 billion a year, and replacement work took 52% of 2025 spending. The company does not split maintenance from growth capex. It also notes that depreciation at today's replacement costs would be substantially higher, so reported margins understate the cost of keeping the network (FY2025 10-K). Company-defined ROIC was 16.3%.

From 2016 to 2025 Union Pacific generated $86.0 billion of operating cash. It spent $34.0 billion on capex, $27.0 billion on dividends and $43.3 billion on buybacks. Debt rose $16.8 billion, to $31.8 billion (derived). Shareholder returns exceeded operating cash after capex by about $18 billion, and the gap was borrowed. Equity of $18.5 billion at the end of 2025 was below 2016's $19.9 billion despite $66 billion of cumulative net income. That is the record of a management that treated the network as mature and the balance sheet as a lever. The Norfolk Southern deal changed course: buybacks paused, $1.5 billion of debt repaid in H1 2026, and leverage at 2.5x.

6. Cyclicality, constraints & what to monitor

Source: FY2025 10-K. Mexico cross-border traffic, $2.9B (about 12.5%), runs across all groups.

Two downturns show the shape. From 2014 to 2016 freight revenue fell 17.5%, carloads 12% and coal 41%, yet the operating ratio held at 63.5%. In 2020 carloads fell 7% and the ratio improved to 59.9% as cost cuts landed. Both times price held. Earnings are only moderately cyclical: the exposure is to volume and fixed-cost absorption, not to price collapse.

Position now: volume is 12% below the 2014 peak and 9% above the 2020 trough. Ex-fuel revenue per car is at a record, and the operating ratio is 2.6 points from its best. Earnings therefore rest on near-peak price and productivity, not on a volume boom. The clearest downside mechanism is coal: EIA expects power-sector coal use to fall about 8% in 2026 and 6% in 2027 [web]. That would leave fixed track and crew costs on Powder River Basin lines spread over fewer trains. The second is domestic intermodal price falling back with truck rates.

7. Risks, unknowns & open questions

• Merger conditions dilute the franchise. The STB's 2001 rules require a major merger to enhance competition [web]. Union Pacific has already expanded gateway pricing commitments and given CN access between St. Louis and Kansas City and into Mexico (Q2 2026 call). More access conditions would let rivals price against it on its own western lanes, and they would outlast the deal.
• Integration strain on service. Service is the source of pricing. Neither company has done a deal this size (FY2025 10-K).
• Leverage and rating. About $20 billion of new debt with a likely leverage covenant. A downgrade could force redemption of some existing debt (8-K). Leverage peaks just as integration costs do.
• The cost of failure. A possible $2.5 billion fee, plus merger costs ($143 million through June 2026) and two years of paused buybacks. Opponents include BNSF, CSX, a chemical and fertilizer shipper coalition, state attorneys general and seven unions [web]. The STB denied their motions for summary denial on September 18, 2026. Opening comments are due November 18, 2026, and a decision is expected in 2027 [web: STB].
• Rate regulation. Three straight revenue-adequate findings make Union Pacific the obvious test case if the STB turns revenue adequacy into a rate cap.
• Hazardous materials. The common-carrier duty to haul toxic-inhalation materials carries catastrophe risk beyond insurance. Norfolk Southern's Eastern Ohio incident liabilities would come with the merger.
• Labour cost against productivity. Compensation per employee is expected to rise about 6% in 2026, and train length and dwell have physical limits.

These compound: a conditioned approval, an integration stumble and higher leverage would hit price, cost and flexibility together.

The sources could not answer: the contract versus tariff mix and the captive share of traffic; customer concentration; core price percentage; maintenance versus growth capex; profit by commodity; pro forma leverage and synergy phasing; the STB's eventual conditions; and whether 2026 intermodal gains survive looser truck markets.

8. Investor takeaways

• What it is: one of two railroads covering the western U.S., with track that cannot be rebuilt and access to Mexico, keeping about 40 cents of operating profit per revenue dollar.
• The engine: price above cost inflation plus productivity on flat volume, about $1,165 per carload, multiplied per share by $43 billion of buybacks.
• Main growth lever: winning freight from trucks, and, if approved, single-line coast-to-coast service through Norfolk Southern.
• What could break it: merger conditions or an integration failure eroding service-based pricing while leverage rises; secondarily, coal and rate regulation.
• Monitor: STB docket FD 36873, ex-fuel revenue per car against cost per employee, and weekly carloads.