France gas benchmark to rise 6.3% in October to 182.88 euros per MWh

October benchmark price adjustment

France's Energy Regulatory Commission (CRE) announced on Thursday, 10 September 2026, that the reference selling price of gas will increase by 6.3% on 1 October 2026. The adjustment elevates the average benchmark rate, known as the Prix Repère de Vente de Gaz (PRVG), to 182.88 euros per megawatt-hour including all taxes. The regulator stated that the upcoming adjustment is the direct consequence of wholesale gas market price increases recorded throughout August compared to July.

The 6.3% hike applies to roughly six million households in France that have contracted variable-rate supply deals linked directly to the monthly reference index. These consumers make up approximately 60% of all residential gas subscribers across the country. According to calculations released by the CRE, the tariff change will add an average of 5.28 euros including tax to the monthly energy bills of indexed households during October. Residential customers enrolled in fixed-price energy contracts will experience no price adjustments from this decision.

Summer fluctuations and market role

The planned October increase represents the latest shift in a turbulent period for French retail gas prices across the second half of 2026. The benchmark rose by 7.4% in July, recorded a minor decline of 0.8% in August, and climbed by 5.6% in September before this latest 6.3% announcement.

The PRVG serves as an official market indicator published monthly by the CRE to guide both suppliers and residential consumers. Established following the formal abolition of state-regulated gas tariffs in 2023, the metric functions as a transparent price reference to assist commercial providers in calibrating their retail tariffs and to provide households with a reliable benchmark to compare offers.

Impact of Strait of Hormuz disruption

The price surge on wholesale markets reflects supply shocks linked to the military conflict in the Middle East, which began on 28 February 2026 with an offensive by the United States and Israel against Iran. In reaction to the offensive, Tehran implemented a blockade of the Strait of Hormuz. The waterway is an essential transit corridor through which approximately 20% of worldwide petroleum supplies and 20% of global liquefied natural gas (LNG) exports normally travel.

Nicolas Goldberg, an energy sector specialist at Colombus Consulting and Terra Nova, described the fundamental market driver behind the latest French tariff adjustments.

This increase is almost exclusively due to the war and the blocked gas delivery routes.

Wholesale European market escalation

The shutdown of the Persian Gulf maritime route has forced energy importing countries to compete for alternative LNG shipments on global markets. This tightening of supply has driven sustained price increases on wholesale hubs across the continent. On the Dutch Title Transfer Facility (TTF) exchange, which operates as the European benchmark for natural gas pricing, contracts increased from 31.470 euros per MWh on 27 February 2026 to 81.910 euros per MWh for October 2026 delivery contracts.

The wholesale increases recorded on international exchanges feed directly into the regulatory formula used by the CRE to recalculate the French retail reference index at the start of each calendar month.