Union Pacific (UNP) Reported a $91M Fuel-Surcharge Surplus. Could That Complicate Its Norfolk Southern Deal?
Union Pacific (NYSE: UNP) reported $91.1 million more in fuel-surcharge revenue than it incurred in fuel costs during the second quarter, according to its Surface Transportation Board filing. Management separately estimated that the net difference between fuel expense and surcharge revenue added about $0.14 to diluted EPS, or roughly $83.2 million based on diluted weighted-average shares. That represents about 4% of quarterly net income.
The comparison with rivals made the figure harder to ignore. Norfolk Southern posted a $3.6 million surplus, and CSX reported $8.4 million. Union Pacific was also the only major U.S. railroad whose fuel surcharges exceeded fuel costs over the first half.
The amount is not large enough to change the long-term earnings picture. The regulatory narrative may be different because Union Pacific is seeking approval for its proposed $85 billion acquisition of Norfolk Southern.
Union Pacific's surcharge programs use benchmark-linked formulas in published tariffs or negotiated customer arrangements, and they can lag fuel-price moves by about two months. That timing has cut both ways. In the first quarter, the company recovered $34.8 million less than its fuel expense. The first-half surplus was $56.4 million, while 2025 ended with surcharge revenue about $48 million below fuel expense. A single quarter, in other words, does not establish a permanent source of earnings.
The railroad also produced broader operating gains. Second-quarter revenue rose 12% to $6.9 billion, and freight revenue excluding fuel surcharges rose 4%. Volume, core pricing, and productivity all contributed, and fuel consumption per thousand gross ton-miles improved 1%. Yet higher fuel prices still pressured the operating ratio by 120 basis points, even as surcharge timing lifted EPS. For Union Pacific, the $0.14 benefit looks more like a timing-related earnings-quality issue than evidence that fuel has become a lasting profit center.
Union Pacific and Norfolk Southern have argued that a combined coast-to-coast network would reduce interchange delays, save shippers an estimated $3.5 billion a year, and shift roughly 2.1 million truckloads a year from road to rail. The issue for Union Pacific is not simply whether its formulas comply with existing rules. Benchmark-based fuel-surcharge programs remain permissible, though the STB has prohibited certain calculation practices. The size of the surplus still dwarfs those of eastern rivals at a politically sensitive stage of the merger review.
Opponents already argue that a combined railroad could raise shipping costs. BNSF has told regulators that the merged company would have the opportunity to apply Union Pacific's high-pricing strategies nationally. The $91.1 million gap gives that argument a concrete figure.
The STB is examining enhanced competition, market-share projections, and downstream merger effects. The surcharge data alone will not decide the case, but it could make Union Pacific spend more time proving that the transcontinental network would benefit customers rather than simply strengthen its pricing power.
Filings available so far reflect positions taken before the August fuel-surcharge report. Insider Monkey's latest quarterly data shows 96 hedge funds held Union Pacific at the end of the first quarter of 2026, down from 106 three months earlier.
The $83.2 million earnings impact is not material to Union Pacific's long-term earnings power. It could matter more as merger optics than as an earnings item. The bullish interpretation is that benchmark-linked formulas temporarily over-recovered fuel costs after an earlier under-recovery. The bearish interpretation is that the surplus gives opponents a visible measure of the pricing leverage they fear.
The disclosure is unlikely to stop the acquisition on its own. It could still raise the regulatory cost of proving that greater network efficiency, not more aggressive customer pricing, will define the combined railroad.