Union Pacific's record quarter came from fuel and volume, as cheaper intermodal boxes hid its price gains

Union Pacific's operating revenue rose 15% in the September 2026 quarter, and most of that came from two sources that say little about pricing power: a fuel surcharge that passes higher diesel costs on to shippers, and more cars on the network. Set fuel aside and the railroad earned about the same per car as it did a year earlier. Operating income rose 15%, in step with revenue, as the railroad moved 6% more cars with 1% fewer employees.

The arithmetic is short. Freight revenue excluding the fuel surcharge grew 6%, exactly as fast as revenue carloads. The rest of the rise in freight revenue, about 9 points calculated from the release's growth rates, was surcharge, in line with what the chief financial officer, Jennifer Hamann, said fuel had added. When revenue excluding fuel grows only as fast as the number of cars, revenue per car excluding fuel has stood still.

The company's own explanation is mix. Its release credits core pricing gains but says business mix offset part of the increase. Intermodal traffic, the containers and trailers carried on flatcars for domestic shippers and for imports and exports through ports, supplied about 74% of the extra carloads, calculated from the release's carload table. Each of those units earned $1,586 last quarter, little more than half the average across all traffic, so a quarter heavy with intermodal pulls the average down even if individual contracts are priced higher. The outlook still says pricing dollars exceed inflation dollars, and Hamann said the shift towards intermodal hid the contribution from price.

What changed is the gap between revenue and volume. In the quarter before, freight revenue excluding fuel grew 4% on volume growth of 2%, leaving room for price and mix. Last quarter the two moved together. Asked whether more volume and tighter trucking would let rail pricing accelerate, Kenny Rocker, who runs marketing and sales, answered that "we're going to price to what the market can support". He pointed to contract renewals from the end of this year into the first months of next as the chance for stronger pricing, after truck capacity tightened over the summer.

Profit tells the same story from the other side. The operating margin was 40.9% last quarter against 40.8% a year earlier, almost unchanged despite the jump in revenue. Fuel explains why: the fuel bill rose by more than two-thirds, and a surcharge that recovers a cost adds revenue with little profit attached. The company said higher fuel prices added 140 basis points to its operating ratio, which is operating costs as a share of revenue, so lower is better, while its adjusted operating ratio rose 30 basis points. Take the fuel effect out and the ratio improved by about 110 basis points, calculated from those two figures, the same core improvement the chief executive, Vincenzo Vena, cited after also excluding merger costs.

That gain came from running the railroad harder. Average headcount fell while the railroad carried more cars, and workforce productivity, measured in car miles per employee, rose 5%. Hamann said this volume leverage is what gives the company confidence in its earnings outlook. In January management guided to mid-single-digit growth in reported EPS for the year; in July it raised the outlook to high single digits, and the latest release affirmed that range. Diluted EPS rose 9% in the first nine months, with share repurchases almost stopped as the company builds cash ahead of its planned merger with Norfolk Southern.

Carrying the growth has a cost elsewhere. The capital plan is now $3.5 billion, up from roughly $3.3 billion set in January, with some work brought forward from next year.

Two things could change this picture. Management says high diesel prices are drawing shippers to try rail and that service is what will keep them; both of the company's service performance indexes, for intermodal and for manifest (mixed carload) traffic, were lower than a year earlier, though management said the bar is set at its best monthly performance. And price is hidden in the figures: the company says its pricing gains exceeded inflation, but the shift to cheaper intermodal boxes offset them, leaving revenue per car excluding fuel flat. If the coming bid season works as Rocker described, revenue per car excluding fuel would start rising faster than carloads, which did not happen last quarter. Until it does, this record quarter rests on volume and efficiency.