October 2026 | FuelEU Index & Market Commentary
Executive Summary FuelEU Index & Market Commentary | October 2026
October extended the downward trajectory in the FuelEU surplus market, with prices declining further despite sustained liquidity and a narrowing window for alternative compliance measures. The non-volume-weighted monthly average decreased by 11% to 85.02 EUR/t CO₂e, while the volume-weighted average declined to 84.09 EUR/t CO₂e. On 30 October, the market closed at 80.00 EUR/t CO₂e on a non-weighted basis and 73.72 EUR/t CO₂e on a volume-weighted basis.
The continued weakness reflects persistent pressure from elevated conventional fuel prices and increasingly cautious buyer behaviour. While liquidity remains available, execution cycles have lengthened, suggesting that buyers continue to position for further downside despite the approaching end of the 2026 fuel consumption period.
Beyond near-term pricing, October increasingly raises questions around the market's longer-term balance. Persistently favourable surplus generation economics, combined with the ability to bank excess compliance balances across reporting periods, could create long-term structural imbalances.
Market Dynamics & Trends
October trading remained characterised by sustained selling interest and increasingly prolonged buyer decision-making. Despite available liquidity, buyers continued to delay execution, seemingly anticipating further price concessions. This behaviour is particularly notable given the progressively narrowing window for biofuel-based mitigation, as any fuel consumption contributing to 2026 compliance must occur before year-end.
The underlying fuel-cost environment remained largely unchanged. Continued disruption and geopolitical uncertainty around the Strait of Hormuz maintained elevated conventional fuel prices, preserving favourable economics for biofuel-based surplus generation.
On the supply side, prolonged price weakness has increasingly challenged seller expectations. Surplus providers appear increasingly reluctant to release significant volumes at prevailing market levels, instead selectively pursuing opportunities to achieve higher valuations, particularly in buyer segments with less established price transparency. However, these isolated pricing strategies have not materially altered the broader downward trend.
Price developments throughout October reflect this continued imbalance in negotiating leverage. Following a brief recovery in the first half of the month, a result of geopolitical rumours, prices softened again toward month-end, with the volume-weighted index closing at 73.72 EUR/t CO₂e.
Market Context
The persistence of low surplus prices increasingly raises a broader question regarding the resilience of FuelEU's market mechanisms to prolonged external energy-market disruptions.
Under current fuel-price conditions, relatively favourable biofuel switching economics may continue to incentivise surplus generation beyond immediate compliance requirements. Should these conditions persist, the resulting accumulation of excess compliance balances could lead to a more pronounced supply-demand imbalance across subsequent reporting periods.
Importantly, the existing regulatory framework permits the banking of surplus compliance balances into future reporting periods without expiry. In a scenario of sustained surplus accumulation, this mechanism could reduce incremental demand for fresh biofuel consumption in subsequent years, even if conventional fuel prices eventually normalise.
While such developments remain conditional, they highlight a potential structural vulnerability in the interaction between external fuel-market shocks and FuelEU's flexibility mechanisms. A prolonged period of unusually favourable surplus generation economics may warrant closer regulatory attention, particularly regarding the treatment of banked balances and their implications for future decarbonisation incentives.
For now, October confirms that the FuelEU surplus market remains firmly anchored in a lower-price environment. Despite approaching year-end operational constraints, price formation continues to be dominated by favourable mitigation economics, disciplined demand, and sellers' limited ability to restore pricing power.
FuelEU Index & Market Commentary | October 2026 | 01/11/2026
Track the monthly surplus index here. Do you need access to averages across specific time periods or daily prices? Reach out to us by clicking here.
Comments