Bulgaria vs Iceland: Annual change in primary energy from oil
Bulgaria
0.1667 terawatt-hours
in 2025
Iceland
0.0782 terawatt-hours
in 2025
Bulgaria rank
41st
Iceland rank
44th
Annual change in primary energy from oil over time
- Bulgaria
- Iceland
How they compare
Bulgaria currently reports 0.1667 terawatt-hours against 0.0782 terawatt-hours in Iceland, a difference of 0.0885 terawatt-hours.
That makes Bulgaria's figure about 2.1 times Iceland's.
The two have swapped places 28 times across 60 shared years of data; in 1966 it was Bulgaria ahead.
Bulgaria ranks 41st and Iceland ranks 44th of 80 countries.
Across the 7 decades both report, Bulgaria averaged higher in 4 and Iceland in 3.
Head to head by decade
| Decade | Bulgaria | Iceland | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 11.89 terawatt-hours | 0.0343 terawatt-hours | 11.86 terawatt-hours | Bulgaria |
| 1970s | 7.03 terawatt-hours | 0.1733 terawatt-hours | 6.85 terawatt-hours | Bulgaria |
| 1980s | -3.34 terawatt-hours | 0.0214 terawatt-hours | 3.36 terawatt-hours | Iceland |
| 1990s | -7.44 terawatt-hours | 0.2842 terawatt-hours | 7.72 terawatt-hours | Iceland |
| 2000s | -0.0949 terawatt-hours | 0.1965 terawatt-hours | 0.2914 terawatt-hours | Iceland |
| 2010s | 0.6592 terawatt-hours | -0.1404 terawatt-hours | 0.7996 terawatt-hours | Bulgaria |
| 2020s | 0.4983 terawatt-hours | 0.0973 terawatt-hours | 0.401 terawatt-hours | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from oil, Bulgaria or Iceland?
- Bulgaria, at 0.1667 terawatt-hours against 0.0782 terawatt-hours in Iceland as of 2025.
- What is the difference in annual change in primary energy from oil between Bulgaria and Iceland?
- 0.0885 terawatt-hours, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Iceland?
- 60 years are reported by both, from 1966 to 2025.
- How do Bulgaria and Iceland rank globally for annual change in primary energy from oil?
- Bulgaria ranks 41st and Iceland ranks 44th of 80 countries.
- Where does this data come from?
- Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Annual change in primary energy from oil. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.