Union Pacific Grew Revenue 15% — and 63% of That Increase Came From a Fuel Surcharge

Union Pacific posted operating revenue of $7.20 billion, up 15%, with diluted EPS of $3.49, an adjusted operating ratio of 58.8% and net income of $2.08 billion. The headline overstates the freight recovery and understates the operational improvement at the same time: strip out fuel-surcharge programs and revenue grew 6%, not 15%.

Diesel is the reason. The national on-highway average reached $6.276 a gallon in the week ending Oct. 19, 2026, against $2.656 a year earlier, and rail surcharge programs are indexed off almost exactly that series. Fuel surcharge revenue nearly doubled to $1.2 billion, and it carries almost no incremental cost — which is why it flatters revenue without flattering the ratio. Higher fuel prices cost the railroad 140 basis points of operating ratio in the quarter.

Strip the fuel noise out and the underlying business got better, not worse. The reported operating ratio improved 10 basis points to 59.1%, and the adjusted ratio of 58.8% was 30 basis points worse than a year earlier — while carrying a 140 basis point fuel headwind. Back that headwind out and the core ratio lands near 57.4%, which beats the 58.5% posted a year earlier by more than 100 basis points. Treat57.4% as an estimate, not a company figure.

CSX is the sharper comparison. It grew revenue 12% to $4.02 billion and lifted operating income to $1.57 billion from $1.09 billion a year earlier, taking its operating ratio to 60.9% from 69.7%. Norfolk Southern went the other way: operating income of $1.15 billion rose just 5% on 14% revenue growth, pushing its ratio to 67.4%. Union Pacific sits between the two, which matters for a merger that would blend the best network in the West with the weakest of the three.

This is the part of the quarter most likely to be misread. With diesel at record levels, freight did not have to be demanded to move — it had to be rerouted. Domestic intermodal volume rose 13% at Union Pacific, 7% at CSX and 3% at Norfolk Southern, and intermodal drove roughly three-quarters of the quarterly volume gain at Union Pacific.

Union Pacific's chief executive has been blunt about the mechanism: railroads cost far less per ton than trucks, so when fuel prices rise, rail becomes the cheaper lane by default. Independent freight consultants report long-haul truckload shifting into intermodal and rail-served distribution centers, while the American Trucking Associations warns that the truck market's rebound reflects reduced capacity rather than robust demand. That distinction is the whole argument: a capacity-driven truck market keeps rail volumes elevated, but it does not last forever.

The fear was that modal shift would compress rail pricing. It did not. Intermodal revenue per car rose 14% to $1,586, premium pricing — intermodal and automotive together — rose 11%, and coal and renewables pricing rose 15%. Rail is pricing into a constrained truck market rather than giving volume away, which is the opposite of the classic modal-shift outcome.

The counterweight to the modal-shift story is that the trucks are coming back. Knight-Swift grew revenue 14.2% to $2.20 billion and improved its consolidated adjusted operating ratio 450 basis points to 89.3%, with truckload adjusted operating income tripling to $124.6 million and an89.2% adjusted ratio against 96.2% a year earlier. J.B. Hunt grew revenue 20% to $3.68 billion, but operating income rose just 2% to $247.1 million, because $670.8 million of fuel surcharge revenue masked a cost base that moved nearly as fast.

That combination is the warning. Trucks were the marginal cost setter in a loose market, and diesel is what culls capacity: once enough carriers and drivers leave, truck rates recover and rail loses the price umbrella it has been borrowing. Knight-Swift already guides to a fourth-quarter adjusted EPS range of $0.78 to $0.84 against $0.83 delivered in the third. A rail volume cycle financed by truck distress has a natural expiry date.

Union Pacific raised 2026 capital spending to $3.5 billion from $3.3 billion, explicitly to pull forward infrastructure and locomotive work originally scheduled for 2027, and said it is using buffer resources — locomotives included — to meet demand. That is a company betting on duration. It is also a company telling you what it thinks 2027 looks like: busy enough to move work forward, not so busy that it can add $200 million without watching its own cost base.

The commodity table gives the thesis its texture. Bulk volume was flat and coal and renewables fell 3% as cheap natural gas and heavy utility inventories kept coal off the rail, even as coal pricing rose 15% on fuel and scarcity. Premium — intermodal plus automotive — did the heavy lifting with 9% volume and 21% revenue growth. A railroad whose growth is concentrated in one fuel-sensitive, price-elastic lane is more exposed to a diesel reversal than one balanced across commodities.

The Union Pacific merger has slipped twice. The Surface Transportation Board found the application incomplete in January 2026, tentatively accepted it in May while pausing the proceeding, then lifted the pause in August and set a schedule that now puts the final decision in the second quarter of 2027. Management says it is ready to close in 2027 and expects to report a first merged quarter roughly a year from now.

The cycle moved while the paperwork waited, and it did not move in the merger partner's favor. Norfolk Southern grew revenue 14% to $3.53 billion in the third quarter but lifted operating income just 5% to $1.15 billion, pushing its operating ratio to 67.4% while absorbing $42 million of merger expenses and $28 million of costs from the Eastern Ohio incident. Its domestic intermodal grew 3% against Union Pacific's 13%. A transcontinental railroad assembled now would link the strongest franchise in the West to the weakest of the three, at a moment when the West is compounding and the East is not.

The near-term question is how much of this quarter survives the fourth quarter. Fuel is guided to roughly $4.85 a gallon against $4.21 realized in the third, the operating ratio steps back seasonally, and the guidance was reaffirmed rather than raised despite a 15% revenue quarter.

The facts: revenue rose 15%, ex-fuel revenue rose 6%, the adjusted operating ratio was 30 basis points worse while carrying a 140 basis point fuel headwind, and fuel surcharge revenue supplied 63% of the revenue increase. The inference: this is a cost-shock cycle, not a demand cycle — railroads are renting volume from a truck market that diesel has broken, and pricing into that constraint rather than into a demand boom. The speculation, which the fourth quarter will test, is whether the cost advantage survives the recovery in truck capacity that every truckload margin in the chain is now signaling. Union Pacific is the best-run way to own that question, but at 22.8 times trailing earnings on a 3.8% free cash flow yield, the market is already paying for the right answer.