CNR commercial diesel fuel index

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Icône mise à jour Last updated 17 August 2026

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Definition

The CNR professional diesel fuel index tracks the monthly change in the cost of diesel fuel used by heavy goods vehicles with a maximum permissible weight of 7.5 tonnes or more engaged in road haulage, excluding VAT. It takes account of the different methods of supply (pump and tank) and includes the rates of partial reimbursement of excise duty on road diesel. 

The CNR commercial diesel index is available online at midnight on the penultimate day of the current month (excluding Sundays and public holidays). 

Base 100 = December 2000

Bi-monthly CNR diesel indices

In accordance with the request from the Minister for Transport, Philippe Tabarot, and the professional road transport organisations, the CNR publishes the fortnightly commercial diesel price indices. These fortnightly indices are calculated using the same methodology as the monthly indices. The monthly indices remain the benchmark indices.   

First half of March 2026Second half of March 2026First fortnight of April 2026Second half of April 2026First half of May 2026Second half of May 2026First half of June 2026Second half of June 2026First half of July 2026Second half of July 2026First half of August 2026
CNR index for commercial diesel (TRM)237,97258,19275,94263,04253,78246,22237,55220,51227,68256,62268,82

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Publications

14 Aug
2026

Historical data for the CNR bi-monthly commercial diesel indices TRM and TRV

Historical data for the CNR bi-monthly commercial diesel indices TRM and TRV

View the historical data for the bi-monthly CNR diesel indices dating back to the first fortnight of March 2026.

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6 Jul
2026

Energy price history – annual averages

Energy price history – annual averages

This note sets out the history of the average annual prices used in the CNR indices.

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24 Mar
2026

Excise duties and TRM partial refund mechanisms for diesel in Europe – 16 March 2026

Excise duties and TRM partial refund mechanisms for diesel in Europe – 16 March 2026

The CNR has updated its European overview of the specific taxation of diesel fuel in Europe and details the partial excise duty refund schemes applicable to road haulage that have been introduced in certain countries. Highlights of this overview, published on 16 March 2026: France:

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1 Feb
2026

Fuel indexation: a guide and the relevant regulations

Fuel indexation: a guide and the relevant regulations

Easy indexation: everything you need to know about the indexation mechanism, the calculations, the CNR reference indices to use, the regulations, etc.

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30 Dec
2025

History of diesel fuel prices excluding VAT

History of diesel fuel prices excluding VAT

History of diesel prices excluding VAT since January 1, 2006 Pump price excluding VAT Source: Directorate-General for Energy and Climate (DGEC). Tank price excluding VAT Source: CNR

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