Share of primary energy from fossil fuels in OECD (EI)
OECD (EI): Share of primary energy from fossil fuels was 80.7% in 2025. ▼ Falling
Share of primary energy from fossil fuels in OECD (EI), 1965–2025
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data. Measured in %.
Analysis
In 2025, share of primary energy from fossil fuels in OECD (EI) stood at 80.7%. That is the lowest value across all 61 years on record.
Compared with earlier readings it is down 0.1% on the previous year and down 3.6% over ten years.
Over the whole period, share of primary energy from fossil fuels in OECD (EI) peaked at 97.0% in 1965 and was at its lowest, 80.7%, in 2025.
The long-run direction has been consistently falling across the 61 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 96.9% | 96.9% | 97.0% | 5 |
| 1970s | 95.3% | 93.7% | 96.9% | 10 |
| 1980s | 89.7% | 87.3% | 93.2% | 10 |
| 1990s | 86.0% | 85.5% | 86.8% | 10 |
| 2000s | 85.2% | 84.0% | 85.8% | 10 |
| 2010s | 83.7% | 82.8% | 84.5% | 10 |
| 2020s | 81.4% | 80.7% | 82.2% | 6 |
Countries ranked near OECD (EI)
- 1 Turkmenistan 100.0% compare
- 2 Kuwait 100.0% compare
- 3 Algeria 99.9% compare
- 4 Trinidad and Tobago 99.9% compare
- 6 Bangladesh 99.5% compare
More energy & mining data for OECD (EI)
- Gas production 16,830 terawatt-hours (2025)
- Fossil fuel production by fuel 16,830 terawatt-hours (2025)
- Share of electricity generation from fossil fuels 47.5% (2025)
- Primary energy from fossil fuels, nuclear, and renewables 9.3% (2025)
- Gas consumption 18,113 terawatt-hours (2025)
- Fossil fuel consumption by fuel 18,113 terawatt-hours (2025)
- Electricity generation from nuclear 1,879 terawatt-hours (2025)
- Share of primary energy from nuclear 9.3% (2025)
- Coal production 7,718 terawatt-hours (2025)
- Annual change in primary energy use 478.07 terawatt-hours (2025)
Frequently asked questions
- What is share of primary energy from fossil fuels in OECD (EI)?
- Share of primary energy from fossil fuels in OECD (EI) was 80.7% in 2025, according to Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data.
- What is the highest share of primary energy from fossil fuels recorded in OECD (EI)?
- The highest recorded value was 97.0% in 1965.
- What is the lowest share of primary energy from fossil fuels recorded in OECD (EI)?
- The lowest recorded value was 80.7% in 2025.
- How does OECD (EI) rank for share of primary energy from fossil fuels?
- OECD (EI) ranks 3rd out of 3 groups with data for 2025.
- Is share of primary energy from fossil fuels rising or falling in OECD (EI)?
- Over the last ten years it is down 3.6%. The long-run trend across the full record is falling.
- Where does this OECD (EI) data come from?
- The figures come from Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as part of Share of primary energy from fossil fuels. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured as a percentage of total energy supply.