[UNP] Union Pacific: Truck-to-Rail Freight and the Fuel Surcharge Lag Ahead of Q3 2026 Earnings

Union Pacific (NYSE: UNP) runs a freight railroad across 23 states in the western two-thirds of the United States, a 32,889-route-mile network that moves grain, coal, chemicals, finished vehicles and intermodal containers across the West and to and from Mexico[1]. This Union Pacific Q3 2026 earnings preview looks ahead to the results and conference call scheduled for 2026-10-22, covering the third quarter of 2026, ending September 30, 2026[2]. In the latest reported period, the second quarter of 2026, operating revenue rose 12% to $6,864 million and freight revenue rose 12% to $6,518 million, but freight revenue excluding fuel surcharge grew only 4%; carloads increased 2% to 2,163 thousand and average revenue per car rose 9% to $3,014[3][4][5]. The operating ratio was 59.7%, 0.7 points worse than a year earlier, or 59.2% excluding $35 million of merger costs; diluted EPS rose 7% to $3.36 and adjusted EPS rose 13% to $3.41[5]. On July 23 management raised its 2026 guidance for reported EPS growth from mid-single digits to high-single digits and reaffirmed operating ratio improvement, pricing dollars in excess of inflation dollars and a $3.3 billion capital plan[5], while lifting expected full-year compensation per employee growth to around 6% and warning that recent diesel purchases had exceeded $4 per gallon[6]. Analyst consensus compiled by Drillr puts third-quarter revenue at $6,969 million (12 analysts, range $6,899 million to $7,079 million) and EPS at $3.45 (14 analysts, range $3.43 to $3.50), with full-year revenue of $26.83 billion and EPS of $13.08[7]; the earnings-calendar estimate is EPS of $3.428 on revenue of $6,946 million[2]. On September 16 the company added that soaring diesel prices were prompting some shippers to move freight from trucks to rail[8].

Three things in this report matter most. First, intermodal carloads: the second quarter's 853 thousand units were up 4%, with domestic up 19% and international down 14%, and the company attributed the domestic gain to business development and reduced truck market capacity[9][4]; the third quarter is the first with a normalized international base, so whether total growth exceeds 4% directly tests whether truck-to-rail conversion is a durable operating fact or a temporary product of diesel prices. Second, the operating ratio and the fuel ledger: fuel expense rose 63% to $938 million while fuel surcharge revenue reached $1.0 billion against $569 million a year earlier[10][11], and management said fuel hurt the operating ratio by 120 basis points but netted 14 cents per share once matched with surcharge revenue[6]; the direction of the third-quarter operating ratio from 59.7%, and whether compensation and benefits turns positive year over year from $1,240 million, decide whether the full-year promise of operating ratio improvement can be kept. Third, the bulk seesaw: grain carloads rose 12% to 242 thousand while coal and renewables carloads fell 14% to 176 thousand, and bulk revenue grew 7% to $2,043 million only because coal's retreat lifted the average price per car[4]; the third quarter runs into coal's 2025 high base, so whether grain can keep outweighing coal decides whether bulk revenue stays positive.

Company Background and Business Structure

Union Pacific Corporation was founded in 1862, is headquartered in Omaha, Nebraska, and operates a freight railroad covering 23 states in the western two-thirds of the United States through its wholly owned subsidiary Union Pacific Railroad. At the end of 2025 the network included 32,889 route miles, of which the company owns 26,294 and operates the rest under trackage rights or leases[1]. Average employees in 2025 were 29,287, down 3% from 2024, while carloads rose 1% and freight car velocity and terminal dwell both set records[12]. The railroad and its subsidiaries form the single reportable segment, and the company discloses freight revenue, carloads and average revenue per car (ARC) for three commodity groups, bulk, industrial and premium; freight revenue to and from Mexico was $828 million in the second quarter of 2026, about 13% of that quarter's freight revenue[13].

On the revenue side, 2025 freight revenue of $23,220 million fell into three groups: bulk $7,586 million (2,056 thousand carloads, ARC $3,690), including grain and grain products, coal and renewables at $1,786 million, fertilizer at $856 million and food and refrigerated; industrial $8,604 million (2,241 thousand carloads, ARC $3,840), including industrial chemicals and plastics at $2,512 million, energy and specialized markets at $2,609 million, metals and minerals and forest products; and premium $7,030 million (4,150 thousand carloads, ARC $1,694), including intermodal at $4,632 million and automotive[14]. Each intermodal container or trailer counts as one carload, so the 3,357 thousand intermodal units of 2025 were 40% of all carloads while their $1,380 ARC was the lowest of the three groups[14]. Beyond freight, other revenue from the logistics subsidiaries and accessorial charges was $346 million in the second quarter of 2026[3]. Customers pay under contracts or tariffs, revenue is recognized over transit time, and every commodity group carries fuel surcharge revenue that follows diesel prices with a lag of generally up to two months[11][15].

On the cost side, 2025 operating expenses were $14,664 million: compensation and benefits $4,897 million, purchased services and materials $2,626 million, depreciation $2,465 million, fuel $2,390 million, equipment and other rents $912 million and other $1,374 million[16]. A railroad must build and maintain its own track: capital investments were $3,791 million in 2025, $3,452 million in 2024 and $3,606 million in 2023[17], and the 2026 capital plan is approximately $3.3 billion for locomotive modernization, freight cars, terminals and second-mainline projects[18]. In the third quarter of 2025 the company announced the acquisition of eastern Class I railroad Norfolk Southern[19]: each Norfolk Southern share converts into one Union Pacific share plus $88.82 in cash, about 225 million shares will be issued and about $20 billion of cash paid, funded by new debt and accumulated operating cash[20]. The combination would create America's first transcontinental railroad spanning more than 50,000 miles across 43 states; shareholders of both companies approved it on November 14, 2025, the deal still requires Surface Transportation Board (STB) approval, and the company expects completion in 2027[21].

Financial History and Current Position

Union Pacific's revenue has been roughly flat for three years while its operating ratio improved. Operating expenses were $15,037 million in 2023, $14,537 million in 2024 and $14,664 million in 2025, and the operating ratio fell from 62.3% in 2023 to 59.9% in 2024 and 59.8% in 2025, which implies 2025 operating revenue of about $24.5 billion[16][12]. Freight revenue of $23,220 million in 2025 grew 2% on core pricing gains and a 1% carload increase, partly offset by traffic mix and fuel surcharge revenue falling from $2.6 billion to $2.3 billion; carloads were 8,447 thousand and ARC of $2,749 was essentially flat[22][14]. Net income was $7,138 million in 2025, $6,747 million in 2024 and $6,379 million in 2023[17], and 2025 included $250 million of industrial park land sales with an effective tax rate of 22.1%[23].

On the cash side, 2025 operating cash flow was $9,290 million, capital investments $3,791 million, dividends $3,236 million, share repurchases $2,679 million, debt repaid $1,428 million and debt issued $1,995 million, leaving $1,280 million of cash at year end[17]. After announcing the Norfolk Southern acquisition the company paused its share repurchase program[24].

In the first half of 2026 operating revenue rose 7% to $13,081 million, operating income rose 7% to $5,221 million, net income rose 5% to $3,694 million and diluted EPS rose 6% to $6.22[3]. The two quarters looked very different. First-quarter operating revenue of $6.2 billion grew only 3%, carloads fell 1% with international intermodal down 28%, the operating ratio was 60.5%, and EPS of $2.87 included $36 million of merger costs, or $2.93 adjusted[25][15]. Second-quarter operating revenue rose 12% to $6,864 million, freight revenue rose 12% to $6,518 million but only 4% excluding fuel surcharge, carloads rose 2% to 2,163 thousand and ARC rose 9% to $3,014[3][4][5].

Fuel dominated second-quarter costs. Fuel expense rose 63% to $938 million as locomotive diesel averaged $3.86 per gallon against $2.42 a year earlier; compensation and benefits fell 1% to $1,240 million, purchased services and materials rose 10% to $709 million, depreciation rose 4% to $638 million, and total operating expenses rose 13% to $4,101 million[10]. Fuel surcharge revenue in the same quarter was $1.0 billion against $569 million a year earlier[11]. The operating ratio of 59.7% deteriorated 0.7 points, or 59.2% excluding $35 million of merger costs; net income rose 6% to $1,993 million, diluted EPS rose 7% to $3.36 and adjusted EPS rose 13% to $3.41[5][26].

First-half operating cash flow was $5,516 million, up 21% from $4,543 million, helped by cash taxes falling from $785 million to $236 million; capital investments were $1,810 million, dividends $1,640 million, debt repaid $1,506 million and share repurchases only $26 million against $2,679 million a year earlier[19]. Free cash flow after investing and dividends was $1,812 million against $1,105 million[27]. At June 30 the company held $1,614 million of cash and $500 million of short-term investments, with a $2.0 billion revolving credit facility and a $600 million receivables facility undrawn[19]; management said adjusted debt to EBITDA stood at 2.5x after repaying $1.5 billion of long-term debt in the first half[6]. In August the board raised the quarterly dividend 3% to $1.42 per share, payable September 30, the twentieth consecutive annual increase[28].

Operating Model

Freight revenue equals carloads multiplied by average revenue per car: the second quarter's $6,518 million of freight revenue was 2,163 thousand carloads at $3,014 each[4], plus $346 million of other revenue[3]. Carloads follow end demand in the three groups: bulk tracks export grain and coal burn at power plants, industrial tracks chemical, construction and metals output, and premium tracks vehicle production and intermodal, where a tight truck market diverts domestic freight to rail and West Coast imports drive international boxes[9][29]. ARC has three parts, core price, traffic mix and fuel surcharge, and the surcharge lags diesel prices by generally up to two months[11][15]. Because an intermodal unit earns less than half of a bulk or industrial carload, a rising intermodal share mechanically lowers average ARC, which is what the second-quarter 10-Q called unfavorable business mix[30].

Operating income equals operating revenue minus six expense lines: compensation, fuel, purchased services and materials, depreciation, equipment rents and other. Compensation was about one-third of 2025 operating expenses and moves with headcount and pay per employee; fuel moves with diesel prices and gross ton-miles but is hedged by the surcharge; depreciation rises steadily with capital spending[16]. The company measures margin by operating ratio, 59.8% in 2025 and 59.7% in the second quarter of 2026, or 59.2% excluding merger costs[12][5]. Volume growth within existing capacity adds almost no fixed cost: in the second quarter train length rose 2% and employees fell 3% while carloads rose 2%, and CFO Hamann said second-half incremental volume was being handled very efficiently with existing capacity at low incremental cost, so most of the gain from volume and core pricing falls to operating income[26][6].

Operating cash flow roughly equals net income plus depreciation: in 2025, $7,138 million of net income plus $2,465 million of depreciation produced $9,290 million of operating cash flow; after $3.3 billion to $3.8 billion of capital investment and about $3.2 billion of dividends, the remainder historically funded buybacks[17]. Buybacks were paused when the acquisition was announced in the third quarter of 2025[19], the roughly $20 billion cash consideration is to be funded by new debt and accumulated operating cash[20], and in the first half of 2026 the company repaid $1,506 million of debt and lifted cash to $1,614 million[19]; until the merger closes, free cash flow goes to deleveraging and cash accumulation.

The model has blind spots. The company does not disclose profit by commodity, so line-level margins can only be inferred from ARC and the cost structure; domestic and international intermodal carloads are not listed separately and appear only as growth rates in the 10-Q text; fuel surcharge is disclosed only in total, not by commodity or contract; the third-quarter comparison base will appear only in the comparative columns of the third-quarter 10-Q, so quarterly comparisons here use the second quarter of 2026 as the reference point; and the STB's timetable is outside the company's control.

Industry and Competitive Position

Only two Class I railroads serve the western United States, Union Pacific and Berkshire Hathaway's BNSF, which the 10-K names as the main railroad competitor operating parallel routes in many principal corridors; motor carriers compete in all three commodity groups, and barges are particularly competitive for grain and bulk near inland and Gulf Coast waterways[31]. Rail's relative advantage is unit cost on long-haul bulk moves; its disadvantage is transit time and timeliness, where trucks generally win, and the railroad must build and maintain its own system while trucks and barges use public rights-of-way[31]. Customers can also switch carriers by switching products, such as natural gas for coal or sorghum for corn, which directly shapes the coal and grain lines[31].

The company's operating metrics over the past two years are the best in its own history. In 2025 freight car velocity rose 8% to 225 daily miles per car, terminal dwell improved 8% to 20.9 hours, train length reached 9,678 feet, workforce productivity rose 7% to 1,132 car miles per employee, the two service performance indexes were 99% and 100%, and the operating ratio of 59.8% was 2.5 points below the 62.3% of the congested 2023 network[12]. The second quarter of 2026 set new marks: velocity 231 daily miles per car, up 5%, dwell 19.7 hours, improved 7%, train length 9,890 feet, workforce productivity 1,176, up 5%; but both service performance indexes slipped to 95% from 99% and 97% a year earlier, which the company attributed to a higher benchmark standard[26]. These metrics underpin the company's claim of an industry-leading operating ratio and are among the few hard data points comparable with BNSF[5].

Two things are reshaping the industry. First, the Norfolk Southern acquisition would create the first single transcontinental railroad[21]; in early September BNSF told the STB that no combination of conditions can solve the merger's problems, listed opposition from shipper associations, seven state attorneys general, six labor unions and more than 100 members of Congress, and said it would seek trackage rights over about 824 route miles of Norfolk Southern lines from Chicago to eastern Pennsylvania if the deal is approved[32]. Second, the 2026 surge in diesel prices has changed the relative cost of truck and rail: domestic intermodal grew 19% in the second quarter on business development and reduced truck market capacity[9], and in mid-September the company said soaring diesel prices were pushing truck freight to rail[8].

Core Debates

With diesel this expensive, is freight really moving from trucks onto Union Pacific's trains?

Intermodal is Union Pacific's largest category by carload, 3,357 thousand units or 40% of the 2025 network, yet the lowest priced: $1,626 per unit in the second quarter of 2026, less than half the $3,971 bulk and $4,075 industrial ARC[14][4]. Domestic intermodal's 19% growth was the main source of the quarter's 2% carload gain[30] and the main basis for the guidance raise: the CFO attributed the raise to stronger-than-expected second-half volume across most business segments and singled out domestic intermodal driven by over-the-road truck conversions[6]. The same story is the core of the company's public-interest case to the STB, converting millions of truck containers to rail, and it is exactly where BNSF has aimed, calling large-scale truck-to-rail conversion not credible[32].

Second-quarter intermodal carloads rose 4% to 853 thousand, intermodal revenue rose 26% to $1,386 million, ARC rose 21% to $1,626, and premium revenue rose 21% to $2,089 million[4]. The 10-Q split the 4% into domestic up 19% (business development and reduced truck market capacity) and international down (the high base of elevated West Coast imports in the first half of 2025), with year-to-date intermodal still down 3% and international down 21%[9]; the call added that domestic posted its fourth consecutive record quarter with private asset, rail asset and parcel volumes all up double digits, that international was down 14% but West Coast imports improved by quarter end, and that management guided international to turn positive in the second half[6]. The 21% ARC increase came mainly from fuel surcharge and fewer low-priced international boxes rather than core price[9]. The opposing reading is that this growth is a temporary product of diesel prices and freight will return to the highway once truck rates fall with fuel; BNSF cites the CPKC merger, where similar but much more modest promises have not come close to coming true[32]. The 2025 record shows how volatile international boxes can be: up 17% in the first half, down 24% in the second[29].

The transmission runs from high diesel and tight truck capacity to shippers shifting linehaul freight from highway to domestic intermodal, lifting carloads into premium revenue; domestic boxes carry below-average ARC, so a rising share depresses premium ARC while fuel surcharge and core price pull it up; intermodal loads onto existing trains, and with train length up 2% and employees down 3% in the second quarter, incremental cost is low and most of the revenue gain reaches operating income[26][30]. Management itself acknowledged that stronger-than-expected domestic intermodal will keep pressuring pricing mix in the second half, while calling it high-quality, profitable growth[6]. What remains unresolved: the third quarter is the first with a normalized international base, so if total intermodal growth falls below the second quarter's 4% the story looks more like a diesel-driven diversion, and if it exceeds 4% with ARC still rising year over year, truck-to-rail conversion is becoming a durable operating fact.

Three things to watch: whether third-quarter intermodal carload growth exceeds the second quarter's 4%, and how the 10-Q describes domestic and international growth separately; whether intermodal ARC is still rising year over year and premium revenue grows faster than carloads; and whether the 10-Q attributes intermodal growth to truck capacity and diesel or to new contracts and price concessions. Two falsifiers: truck rates fall with diesel and domestic intermodal growth returns to single digits; or the company trades price for volume to capture truck freight and intermodal ARC turns negative year over year.

Diesel has more than doubled: is Union Pacific a winner or a loser from it?

Fuel is Union Pacific's second-largest cost, $938 million in the second quarter of 2026, and fuel surcharge revenue of $1.0 billion in the same quarter more than offset it[10][11]. That offset depends on the contractual lag of generally up to two months: when diesel rises the company fronts the cost, when it plateaus the company over-recovers, and when it falls the surcharge drops first[15]. The second quarter looked like a plateau: the operating ratio deteriorated 0.7 points on the surface and the company said higher fuel prices hurt it by 120 basis points[5], but the CFO said fuel netted 14 cents per share once matched with surcharge revenue[6], and a filing with the STB showed surcharges exceeded fuel spend by $91.1 million[33]. The third quarter decides which way this ledger runs and whether the full-year guidance of operating ratio improvement can be met: the first-half operating ratio was 60.1%, 0.3 points worse than a year earlier, against 59.8% for full-year 2025, leaving no room in the second half[26][12].

Second-quarter locomotive diesel averaged $3.86 per gallon, up 60%, on 237 million gallons consumed, up 2%, with the consumption rate improving 1%[34]; fuel expense rose 63% to $938 million[10] and surcharge revenue was $1.0 billion against $569 million[11]. Operating expenses rose 13%, and the operating ratio was 59.7%, or 59.2% excluding $35 million of merger costs[5]. Compensation and benefits fell 1% to $1,240 million, thanks to the base effect of a $55 million crew staffing agreement charge in 2025 and 3% fewer employees[10]; management nevertheless raised expected full-year compensation per employee growth to around 6%, citing hotter-than-expected health and welfare cost inflation on top of scheduled union wage increases, and said recent diesel purchases above $4 per gallon would keep pressuring the second-half operating ratio[6]. The wire-service reading treats fuel as an industry-wide margin squeeze: U.S.-Israeli strikes on Iran sent energy prices sharply higher, U.S. gasoline has averaged above $4 a gallon since March, and the company's second-quarter operating expenses rose 13% to $4.1 billion on a 63% surge in fuel expense[35].

The optimistic reading is that diesel stabilizes at a high level, the surcharge is priced off diesel from two months earlier, the third quarter keeps over-recovering, and volume leverage brings the operating ratio back toward 59%. The pessimistic reading is that falling diesel cuts the surcharge before the cost, compensation turns positive and merger costs of about $35 million a quarter stack on top, and the operating ratio slides toward 60.5%. The chain runs from diesel prices to same-quarter fuel expense, to surcharge recovery lagged about two months, to the net fuel effect plus compensation (about +6% per employee against 3% fewer employees) plus merger costs, to the operating ratio, and then to operating income and EPS[26][6]. The three causes of the second-quarter deterioration, higher fuel, inflation and merger costs, will all still be present in the third quarter; the only variables are the direction of surcharge recovery and the size of the volume leverage[26].

Three things to watch: the direction of the third-quarter operating ratio from 59.7% and the basis-point fuel impact disclosed in the 8-K; whether the year-over-year increase in surcharge revenue still exceeds the increase in fuel expense; and whether compensation and benefits turns positive year over year and whether the increase exceeds 4%. Falsifiers: surcharge falls ahead of cost as diesel retreats and the operating ratio deteriorates by more than 1 point; or health benefits and union raises push compensation growth above 6%, offsetting lower headcount.

How long can the grain-export tailwind keep covering the coal headwind?

Bulk contributes about one-third of Union Pacific's freight revenue, $7,586 million of $23,220 million in 2025[14], and it holds two lines running in opposite directions. In the second quarter of 2026 grain and grain products revenue rose 15% to $1,106 million on carloads up 12% to 242 thousand, while coal and renewables revenue fell 4% to $448 million on carloads down 14% to 176 thousand[4]. Because coal's $2,546 ARC is little more than half of grain's $4,568, coal's retreat actually lifted bulk ARC 9% to $3,971, so bulk revenue rose 7% to $2,043 million while carloads fell 1% to 514 thousand[4]; this is mix-driven growth that hides falling volume. Coal trains are long and carry very low marginal cost, and part of 2025's train-length gain came from longer coal trains[12], so losing coal hurts profit more than it hurts revenue.

The 10-Q attributed the second-quarter coal decline to lower natural gas prices, milder weather and mine maintenance and outages, which increased export grain and continued growth in renewable fuels and feedstocks could not fully offset; year-to-date bulk revenue rose 9% on 5% more carloads, thanks to coal still growing in the first quarter[9]. First-quarter bulk carloads rose 12% and revenue 10%[25]; in the second quarter coal and renewables revenue ton-miles fell 12% while grain rose 12%[34], and on the 10-Q's coal-only basis carloads fell 17%[30]. The base problem is spelled out in the 10-K: coal and renewables carloads rose 14% in 2025, a high base created by expensive natural gas, more coal burn at power plants and business wins[14][29], and the second half of 2026 laps that base quarter by quarter. Management's July outlook was that grain keeps growing on strong export demand and new facility openings, renewable fuels retain upside, and coal stays challenged by elevated inventories and lower natural gas prices[6].

The transmission runs from export demand and new loading facilities to grain carloads, and from natural gas prices, weather and utility stockpiles to coal carloads, with the two entering bulk revenue at ARCs nearly double apart; a falling coal share mechanically lifts bulk ARC, but coal trains are long and cheap to run, so lost coal hurts profit more than revenue[4][12]. The other possibility is that grain exports carry their own risk: they depend on the pace of exports to Mexico and Asia and on harvests, and 2025's grain growth came from exports to Mexico and soybean crush[29], so a slowdown in exports would take both of bulk's legs at once. The third quarter will show whether the grain end of the seesaw can still hold coal down.

Three things to watch: the separate year-over-year change in grain and coal carloads, and whether total bulk carloads fall for a second consecutive quarter; whether bulk revenue is still positive year over year and whether growth still comes mainly from ARC rather than carloads; and whether the 10-Q's coal attribution shifts from weather and maintenance to a structural decline driven by utility inventories and natural gas prices. Falsifiers: the coal carload decline widens beyond 25% and bulk revenue turns negative year over year; or grain exports slow and grain carloads turn negative.

Until the STB says yes, how much does Union Pacific spend and save each quarter for this deal?

The roughly $85 billion acquisition of Norfolk Southern is the company's largest variable for the next five years[35], but the STB's decision is not in the quarterly report. What the report does show is three things: the cost of the review ($35 million in the second quarter, or 5 cents per share)[5][20], the cash saved and debt repaid toward the roughly $20 billion cash consideration ($1,506 million of debt repaid in the first half and cash up to $1,614 million)[20][19], and the paused buyback ($26 million in the first half against $2,679 million a year earlier)[19]. These determine the gap between reported and adjusted EPS and the shape of shareholder returns during the review.

The 10-Q's procedural record: the joint application was filed December 19, 2025, found incomplete January 16, 2026, refiled April 30, and accepted as complete May 28 with proceedings held in abeyance and supplemental information due by July 27, with the first portion delivered July 7; the company expects completion in 2027[20]. On the first-quarter call CEO Vena said he expected approval in the second quarter of 2027[36]. Merger costs were $36 million in the first quarter and $35 million in the second, $71 million for the half, almost entirely in purchased services and materials; either party may owe the other a $2.5 billion termination fee under certain circumstances[20][37]. In July the company reached a settlement with CN addressing competitive concerns in the Kansas City and St. Louis region, and management said it does not reduce projected synergies and CN will pay for access[6]. The day before the results the STB ordered both companies to make employee-impact data public, having paused its review in May to request more information on competitive effects[35]; in early September BNSF filed its opposition, said it would detail its full case on November 18, and said it would seek trackage rights over about 824 miles of Norfolk Southern lines[32].

The optimistic reading is that the process proceeds on schedule, costs stay around $30 million a quarter, and cash and deleveraging keep paving the way for 2027 financing. The pessimistic reading is that structural conditions from opponents stretch the timetable and erode synergies: the 10-K states that regulators may impose conditions and that the company has agreed to accept them even if significant, subject only to the materially burdensome regulatory condition limitation[38], so if the company judged a condition materially burdensome it could walk away, and a resumed buyback would be the earliest signal. The chain runs from STB progress to advisory and legal costs (excluded from adjusted EPS), to paused buybacks, debt repayment and cash accumulation during the review; if the process advances, costs continue, cash builds and leverage falls; if it stalls or ends, costs stop, the $2.5 billion termination fee becomes a risk and buybacks resume[20][19].

Three things to watch: the amount of third-quarter merger costs and any new STB dates added to the 10-Q notes; nine-month operating cash flow, debt repayment and the cash balance; and whether buybacks remain near zero and the dividend is paid at $1.42 per share. Falsifiers: the company deems STB conditions such as trackage rights materially burdensome, the deal terminates and a termination-fee dispute follows; or a longer process pushes merger costs up quarter after quarter while synergies stay out of reach.

Risks and Falsifiers

The first risk is that operating metrics already sit at the best levels in the company's history, leaving more room to slip than to improve. Second-quarter terminal dwell of 19.7 hours, workforce productivity of 1,176 car miles per employee and train length of 9,890 feet were all records, yet both service performance indexes had already fallen to 95% from 99% and 97%[26]; with volume accelerating and merger preparation running in parallel, any loss of network fluidity would raise labor, rent and accident costs at once. The exposed line is 2025 operating expenses of $14,664 million[16]: each step down in service performance usually comes with rising headcount and active locomotives, and the congested 2023 network ran a 62.3% operating ratio, 2.5 points above 2025[12], equivalent to about $170 million of expense per quarter at second-quarter revenue. The falsifier is third-quarter terminal dwell no higher than 20 hours, freight car velocity no lower than 225 daily miles per car, and both service performance indexes no lower than 95%.

The second risk is that domestic intermodal growth depends on two external conditions, a tight truck market and high diesel; if they reverse, freight flows back to the highway and the terminal and train-length capacity added to absorb the growth becomes idle. The exposed line is intermodal revenue, $4,632 million in 2025[14] and $1,386 million in the second quarter of 2026[4]; at the second quarter's 853 thousand carloads and $1,626 ARC, each percentage point of year-over-year intermodal carloads is worth about $14 million of quarterly revenue, and because incremental cost is so low, lost volume falls almost entirely to operating income[4]. The falsifier is third-quarter intermodal carload growth of at least 4% with the 10-Q still attributing domestic growth to truck conversion.

The third risk is that the two-month fuel surcharge lag reverses when diesel turns down: surcharge revenue falls first, fuel expense later, and the revenue base built during high fuel prices disappears, pulling nominal freight revenue growth from double digits back to single digits. Second-quarter surcharge revenue was $1.0 billion and fuel expense $938 million[11][10]; at the second quarter's 237 million gallons, every $0.10 per gallon change in diesel is worth about $24 million of quarterly fuel expense, with the matching surcharge change showing up roughly a quarter later[34][15]. The falsifier is a third-quarter year-over-year increase in surcharge revenue at least as large as the increase in fuel expense, with the 8-K reporting a neutral or favorable fuel impact on the operating ratio.

The fourth risk is that coal demand steps down structurally from its 2025 high base, and because coal trains are the lowest-marginal-cost business, the hit to operating income exceeds what the $448 million of quarterly revenue suggests. Coal and renewables revenue was $1,786 million in 2025 on 797 thousand carloads[14]; at the second quarter's $2,546 ARC and 176 thousand carloads, every 10 percentage points of year-over-year coal carload decline is worth about $45 million of quarterly revenue[4]. The falsifier is a third-quarter coal carload decline no worse than 14% with bulk revenue growth of at least 3%.

The fifth risk is that structural conditions sought by BNSF, CN and short-line railroads in the STB review (trackage rights, gateway pricing commitments and neutral terminal operation) stretch the process and erode merger synergies, leaving the company caught between completing a diminished deal and walking away with a $2.5 billion termination fee at risk[32][38]. The exposed lines are merger costs of $71 million in the first half[20]; a $2.5 billion termination fee in a termination scenario, about 27% of 2025 operating cash flow of $9,290 million[17]; and the paused buyback, which was $2,679 million in 2025[24]. The falsifier is an STB procedural schedule issued after the deadline that places the final decision in 2027, with the company not describing any proposed condition as materially burdensome.

What to Watch Next

• Truck-to-rail: intermodal carloads, 853 thousand in the second quarter of 2026, up 4%. Watch whether third-quarter growth exceeds 4% and how domestic and international each grow. Growth above 4% with ARC positive year over year confirms; domestic back to single digits or ARC negative falsifies.
• Truck-to-rail: premium revenue of $2,089 million and intermodal ARC of $1,626 in the second quarter. Watch whether revenue grows faster than carloads. Intermodal ARC turning negative year over year falsifies.
• Fuel and operating ratio: reported operating ratio of 59.7% in the second quarter and 60.1% for the first half. Watch the direction from 59.7% and the basis-point fuel impact in the 8-K. A neutral or favorable fuel impact confirms; deterioration of more than 1 point falsifies.
• Fuel and operating ratio: surcharge revenue of $1.0 billion against fuel expense of $938 million. Watch which year-over-year increase is larger. A surcharge increase at least as large as the fuel increase confirms.
• Fuel and operating ratio: compensation and benefits of $1,240 million, down 1% year over year. Watch whether it turns positive and whether growth exceeds 4%. Growth above 6% falsifies.
• Grain versus coal: grain carloads of 242 thousand (up 12%) and coal carloads of 176 thousand (down 14%). Watch each line's year-over-year change and whether total bulk carloads fall for a second consecutive quarter. A coal decline no worse than 14% confirms; a decline beyond 25% or grain turning negative falsifies.
• Grain versus coal: bulk revenue of $2,043 million, up 7%. Watch whether it stays positive and whether growth comes from ARC or carloads. Growth of at least 3% confirms; a decline falsifies.
• Merger review: merger costs of $35 million in the second quarter. Watch the amount and any new STB dates in the notes. Costs around $30 million with no materially burdensome language confirm; costs rising quarter after quarter falsify.
• Merger review: first-half operating cash flow of $5,516 million and buybacks of $26 million. Watch nine-month cash accumulation and debt repayment, and whether buybacks stay near zero. A buyback resumed before the STB decides is the earliest signal of a stalled deal.
• Network fluidity: terminal dwell of 19.7 hours, velocity of 231 daily miles per car and service performance indexes of 95% and 95%. Watch whether all three hold. Dwell no higher than 20 hours, velocity no lower than 225 and indexes no lower than 95% confirm.

Conclusion

Union Pacific's business is carloads times price per car, minus a cost sheet dominated by labor and fuel. Revenue has been flat for three years while the operating ratio fell from 62.3% to 59.8%[12]; in the first half of 2026 fuel surcharge, core pricing and the second quarter's 2% carload growth lifted revenue 7% and EPS 6%[3], while operating cash flow reached $5,516 million, debt repayment $1,506 million, buybacks fell to almost nothing and cash rose to $1,614 million[19]. The current financial position is record revenue and profit paired with an operating ratio pushed 0.7 points higher by fuel[5]. The unresolved core relationship is whether three lines, domestic intermodal growth from truck-to-rail conversion, the lagged recovery of fuel cost through surcharges, and the structural substitution of grain for coal, all continue through the third quarter or one of them starts to reverse; meanwhile the merger review shows up in the accounts only as about $35 million of quarterly cost and a paused buyback[20].

Independent commentary since the results splits in two directions. Jeff Berman of Logistics Management relayed BNSF's submission to the STB: no combination of conditions can solve the merger's problems, the application's public-interest case of converting millions of truck containers to rail rests on a company-commissioned consultant's report, similar and far more modest promises in the CPKC merger have not come close to coming true, and BNSF would seek trackage rights over about 824 route miles if the deal were approved[32]. The wire-service roundup compiled by the Arkansas Democrat-Gazette characterized the second quarter as higher freight rates and strong demand overshadowing rising operating costs, placed it within a broader trend of U.S. railroads benefiting from pricing strength and operational discipline, noted that elevated fuel costs remain a shared pressure across transportation, and recorded the STB's order to publish employee-impact data and its May pause of the review[35]. The two disagree not on the numbers but on their interpretation: the wire services treat the quarter's volume and pricing as a tailwind for railroads, while BNSF treats the truck-to-rail narrative behind the same volume data as an unreliable promise; the former maps to the fuel and operating ratio debate, the latter directly to the intermodal and merger debates. The company's own two statements, the STB filing showing surcharges exceeded fuel spend by $91.1 million[33] and the mid-September comment that soaring diesel is pushing truck freight to rail[8], are the words of an interested party and cannot substitute for independent assessment; no other external view meeting the independence requirement was available for this period, and sell-side research is excluded by the rules of this column.

The combination that would strengthen the current understanding: third-quarter intermodal carload growth above 4% with ARC still positive year over year, a surcharge increase at least as large as the fuel expense increase with the operating ratio no higher than 59.7%, a coal carload decline no worse than 14% with bulk revenue still up more than 3%, and merger costs holding around $30 million with no materially burdensome language in the notes. The combination that would weaken it: intermodal growth back in single digits with ARC negative, surcharge falling ahead of fuel expense with the operating ratio deteriorating more than 1 point, the coal decline widening beyond 25% with bulk revenue negative, or buybacks resuming before the STB decides. The third-quarter 10-Q will also provide the full 2025 third-quarter base for the first time, and every reference point here will need to be restated on that year-over-year basis.

Sources

[1] UNP 10-K filed 2026-02-06 · properties and route miles · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[2] Drillr earnings_calendar (updated 2026-09-21) · UNP 2026-10-22 event and estimates · 2026-09-21 · Drillr earnings_calendar (fmp) · https://gateway.drillr.ai/mcp/private

[3] UNP 8-K filed 2026-07-23 · 2Q26 income statement · 2026-07-23 · 8-K · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=8-K&dateb=&owner=include&count=40

[4] UNP 8-K filed 2026-07-23 · 2Q26 freight revenue, carloads and ARC by commodity · 2026-07-23 · 8-K · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=8-K&dateb=&owner=include&count=40

[5] UNP 8-K filed 2026-07-23 · 2Q26 results press release · 2026-07-23 · 8-K · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=8-K&dateb=&owner=include&count=40

[6] UNP 2Q26 earnings call 2026-07-23 · Drillr structured summary · 2026-07-23 · earnings-call · https://investor.unionpacific.com/events-and-presentations

[7] Drillr analyst_financial_estimates (updated 2026-09-21) · 3Q26 and FY2026 estimates · 2026-09-21 · Drillr analyst_financial_estimates · https://gateway.drillr.ai/mcp/private

[8] Reuters 2026-09-16 · Union Pacific says high diesel prices shifting freight from trucks to rail (Drillr news_search summary) · 2026-09-16 · Reuters (Drillr news_search summary) · https://www.reuters.com/business/energy/union-pacific-says-high-diesel-prices-shifting-freight-trucks-rail-2026-09-16/

[9] UNP 10-Q filed 2026-07-23 · 2Q26 commodity group commentary · 2026-07-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[10] UNP 10-Q filed 2026-07-23 · 2Q26 operating expenses by line · 2026-07-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[11] UNP 10-Q filed 2026-07-23 · how freight revenues are generated and 2Q26 fuel surcharge · 2026-07-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[12] UNP 10-K filed 2026-02-06 · FY2025 operating and performance statistics · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[13] UNP 10-Q filed 2026-07-23 · 2Q26 segment revenues and expenses · 2026-07-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[14] UNP 10-K filed 2026-02-06 · FY2025 freight revenue by commodity group · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[15] UNP 10-Q filed 2026-04-23 · 1Q26 quarterly summary · 2026-04-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[16] UNP 10-K filed 2026-02-06 · FY2025 operating expenses · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[17] UNP 10-K filed 2026-02-06 · FY2025 cash flows · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[18] UNP 10-K filed 2026-02-06 · 2026 capital plan · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[19] UNP 10-Q filed 2026-07-23 · liquidity and 1H26 cash flows · 2026-07-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[20] UNP 10-Q filed 2026-07-23 · pending acquisition status and costs · 2026-07-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[21] UNP 10-K filed 2026-02-06 · pending acquisition of Norfolk Southern · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[22] UNP 10-K filed 2026-02-06 · FY2025 freight revenue drivers and fuel surcharge · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[23] UNP 10-K filed 2026-02-06 · FY2025 non-operating items · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[24] UNP 10-K filed 2026-02-06 · liquidity and paused share repurchases · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[25] UNP 8-K filed 2026-04-23 · 1Q26 results press release · 2026-04-23 · 8-K · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=8-K&dateb=&owner=include&count=40

[26] UNP 10-Q filed 2026-07-23 · 2Q26 operating ratio and workforce productivity · 2026-07-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[27] UNP 8-K filed 2026-07-23 · 1H26 cash flow and free cash flow · 2026-07-23 · 8-K · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=8-K&dateb=&owner=include&count=40

[28] Baystreet.ca via Yahoo Finance 2026-08-05 · Union Pacific boosts dividend · 2026-08-05 · Baystreet.ca via Yahoo Finance · https://ca.finance.yahoo.com/news/union-pacific-boosts-dividend-stock-135800791.html

[29] UNP 10-K filed 2026-02-06 · FY2025 commodity group commentary · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[30] UNP 10-Q filed 2026-07-23 · 2Q26 quarterly summary · 2026-07-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[31] UNP 10-K filed 2026-02-06 · competition · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/

[32] Logistics Management 2026-09-11 · BNSF pushes back on proposed UP-NS merger as CN outlines competitive access demands · 2026-09-11 · Logistics Management · https://www.logisticsmgmt.com/article/bnsf_pushes_back_on_proposed_up_ns_merger_as_cn_outlines_competitive_access_demands

[33] Reuters 2026-08-17 · Union Pacific fuel surcharge exceeded fuel spend by $91.1 million in 2Q26 (Drillr news_search summary) · 2026-08-17 · Reuters (Drillr news_search summary) · https://www.reuters.com/business/energy/us-railroad-union-pacific-turned-charges-meant-cover-fuel-cost-spike-iran-war-2026-08-17/

[34] UNP 8-K filed 2026-07-23 · 2Q26 operating statistics and fuel · 2026-07-23 · 8-K · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=8-K&dateb=&owner=include&count=40

[35] Arkansas Democrat-Gazette 2026-07-24 · Union Pacific beats 2Q forecasts on strong demand, higher rates · 2026-07-24 · Arkansas Democrat-Gazette · https://www.arkansasonline.com/news/2026/jul/24/union-pacific-beats-2q-forecasts-on-strong-demand/

[36] UNP 1Q26 earnings call 2026-04-23 · Drillr structured summary · 2026-04-23 · earnings-call · https://investor.unionpacific.com/events-and-presentations

[37] UNP 10-Q filed 2026-04-23 · 1Q26 acquisition-related expense and STB timeline · 2026-04-23 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000100885&type=10-Q&dateb=&owner=include&count=40

[38] UNP 10-K filed 2026-02-06 · pending acquisition risks · 2026-02-06 · 10-K · https://www.sec.gov/Archives/edgar/data/100885/000010088526000037/