On-highway diesel (HDF) reference used this cycle: $5.0238/gal. Mileage-based programs multiply these factors by the miles your car runs, so a 51¢/mile factor on a 1,500-mile move is roughly $765 per car.

Railroad	Factor	Effective	Next revision	Basis
BNSF Railway	51¢	Aug 1, 2026	Sep 1, 2026	Formula-derived
Union Pacific	59¢	Aug 1, 2026	Sep 1, 2026	Formula-derived
CSX Transportation	32¢	Aug 1, 2026	Sep 1, 2026	Formula-derived
Norfolk Southern	64¢	Aug 1, 2026	Sep 1, 2026	Formula-derived
Canadian National	65¢	Aug 1, 2026	Sep 1, 2026	Formula-derived
Canadian Pacific Kansas City	69¢	Jul 1, 2026	Jul 1 - Jul 15, 2026	Published table

How to read this. Most Class I fuel surcharges are mileage-based: a cents-per-mile factor that resets monthly against the average on-highway diesel price two months prior. Programs differ by strike price, rounding, and whether your traffic moves under public tariff or contract, which is why several carriers below show more than one factor. Where a row is marked formula-derived, we calculate it from the carrier's published formula rather than reading a posted table — check the carrier source before you invoice against it. These figures are for planning; we do not guarantee rates.

BNSF Railway Fuel Surcharge

51¢ per mile · effective Aug 1, 2026

$1.25 strike76¢ per mile
$2.50 strike51¢ per mile
$3.25 strike36¢ per mile

How it is set: BNSF Rules Book 6100-B Item 3376 Section B (mileage, $2.50 strike): 1c/mi per each 5c/gal HDF over $2.50, ceiling rounding
Diesel basis (HDF): $5.0238/gal (month 2026-06)
Baseline / strike: $2.50/gal
Next revision: 2026-09-01
Basis: Formula-derived — Calculated from the carrier's published formula and this month's average on-highway diesel price. Not a quoted tariff table — confirm against the carrier source before invoicing.
Carrier source: BNSF published terms

Union Pacific Fuel Surcharge

59¢ per mile · effective Aug 1, 2026

How it is set: UP-6004 Carload Mileage-Based Standard HDF Fuel Surcharge: 5c/mi at HDF $2.30, +1c/mi per each 5c/gal increment above, floor rounding
Diesel basis (HDF): $5.0238/gal (month 2026-06)
Baseline / strike: $2.30/gal
Next revision: 2026-09-01
Basis: Formula-derived — Calculated from the carrier's published formula and this month's average on-highway diesel price. Not a quoted tariff table — confirm against the carrier source before invoicing.
Carrier source: UP published terms

CSX Transportation Fuel Surcharge

32¢ per mile · effective Aug 1, 2026

CSXT 8662 (public)32¢ per mile
CSXT 8661 (contract)75¢ per mile

How it is set: CSXT 8662 (public): 1c/mi per each 4c/gal HDF over $3.749, ceiling rounding. CSXT 8661 (contract): 1c/mi per 4c/gal HDF over $2.00, floor.
Diesel basis (HDF): $5.0238/gal (month 2026-06)
Baseline / strike: $3.75/gal
Next revision: 2026-09-01
Basis: Formula-derived — Calculated from the carrier's published formula and this month's average on-highway diesel price. Not a quoted tariff table — confirm against the carrier source before invoicing.
Carrier source: CSXT published terms

Norfolk Southern Fuel Surcharge

64¢ per mile · effective Aug 1, 2026

How it is set: NS $2.50 Mileage-Based Fuel Surcharge Program: 1c/mi per each 4c/gal HDF over $2.50, ceiling rounding (or portion thereof)
Diesel basis (HDF): $5.0238/gal (month 2026-06)
Baseline / strike: $2.50/gal
Next revision: 2026-09-01
Basis: Formula-derived — Calculated from the carrier's published formula and this month's average on-highway diesel price. Not a quoted tariff table — confirm against the carrier source before invoicing.
Carrier source: NS published terms

Canadian National Fuel Surcharge

65¢ per mile · effective Aug 1, 2026

Carload65¢ per mile
Bulk62¢ per mile

How it is set: CN 7403 U.S. Carload Mileage Fuel Surcharge: $0.0060/mi (carload, all-other) or $0.00575/mi (bulk) per $0.025/gal HDF over $2.30, floor rounding
Diesel basis (HDF): $5.0238/gal (month 2026-06)
Baseline / strike: $2.30/gal
Next revision: 2026-09-01
Basis: Formula-derived — Calculated from the carrier's published formula and this month's average on-highway diesel price. Not a quoted tariff table — confirm against the carrier source before invoicing.
Carrier source: CN published terms

Canadian Pacific Kansas City Fuel Surcharge

69¢ per mile · effective Jul 1, 2026

Carload69¢ per mile
Bulk64¢ per mile

How it is set: CPKC Tariff 9700 (PDF-published bi-weekly table). Active period Jul 1 - Jul 15, 2026 carload USD = $0.6900/mi at OHD $5.280/gal.
Diesel basis (HDF): $5.2800/gal (month 2026-07)
Baseline / strike: —
Next revision: Jul 1 - Jul 15, 2026
Basis: Published table — Parsed directly from the carrier's published fuel surcharge table.
Carrier source: CPKC published terms

Working a specific lane? Fuel is one line on the invoice. Our rail rate estimator puts line-haul, fuel, and switching together for your origin and destination, or talk through your lane with us.