Share of primary energy from fossil fuels in CIS (EI)
CIS (EI): Share of primary energy from fossil fuels was 90.9% in 2025. ▼ Falling
Share of primary energy from fossil fuels in CIS (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 CIS (EI) stood at 90.9%.
The figure is down 0.1% on the previous year and down 0.7% over ten years.
Over the whole period, share of primary energy from fossil fuels in CIS (EI) peaked at 98.7% in 1967 and was at its lowest, 90.7%, in 2020.
The long-run direction has been consistently falling across the 61 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 98.6% | 98.5% | 98.7% | 5 |
| 1970s | 98.0% | 97.3% | 98.4% | 10 |
| 1980s | 95.8% | 95.0% | 96.9% | 10 |
| 1990s | 94.3% | 93.1% | 95.4% | 10 |
| 2000s | 92.5% | 92.0% | 92.8% | 10 |
| 2010s | 91.9% | 91.4% | 92.5% | 10 |
| 2020s | 90.9% | 90.7% | 91.1% | 6 |
Countries ranked near CIS (EI)
- 1 Turkmenistan 100.0% compare
- 2 Kuwait 100.0% compare
- 3 Algeria 99.9% compare
- 4 Trinidad and Tobago 99.9% compare
More energy & mining data for CIS (EI)
- Gas production 7,984 terawatt-hours (2025)
- Fossil fuel production by fuel 7,984 terawatt-hours (2025)
- Share of electricity generation from fossil fuels 66.0% (2025)
- Primary energy from fossil fuels, nuclear, and renewables 6.4% (2025)
- Gas consumption 6,153 terawatt-hours (2025)
- Fossil fuel consumption by fuel 6,153 terawatt-hours (2025)
- Electricity generation from nuclear 238.54 terawatt-hours (2025)
- Share of primary energy from nuclear 6.4% (2025)
- Coal production 3,191 terawatt-hours (2025)
- Annual change in primary energy use 44.06 terawatt-hours (2025)
Frequently asked questions
- What is share of primary energy from fossil fuels in CIS (EI)?
- Share of primary energy from fossil fuels in CIS (EI) was 90.9% 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 CIS (EI)?
- The highest recorded value was 98.7% in 1967.
- What is the lowest share of primary energy from fossil fuels recorded in CIS (EI)?
- The lowest recorded value was 90.7% in 2020.
- How does CIS (EI) rank for share of primary energy from fossil fuels?
- CIS (EI) ranks 2nd out of 3 groups with data for 2025.
- Is share of primary energy from fossil fuels rising or falling in CIS (EI)?
- Over the last ten years it is down 0.7%. The long-run trend across the full record is falling.
- Where does this CIS (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.