Iran vs Sri Lanka: Annual change in primary energy from oil
Iran
6.07 terawatt-hours
in 2025
Sri Lanka
4.33 terawatt-hours
in 2025
Iran rank
21st
Sri Lanka rank
22nd
Annual change in primary energy from oil over time
- Iran
- Sri Lanka
How they compare
Iran currently reports 6.07 terawatt-hours against 4.33 terawatt-hours in Sri Lanka, a difference of 1.74 terawatt-hours.
That makes Iran's figure about 1.4 times Sri Lanka's.
The two have swapped places 14 times across 60 shared years of data; in 1966 it was Iran ahead.
Iran ranks 21st and Sri Lanka ranks 22nd of 79 countries.
Across the 7 decades both report, Iran averaged higher in 6 and Sri Lanka in 1.
Head to head by decade
| Decade | Iran | Sri Lanka | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 9.41 terawatt-hours | 0.2322 terawatt-hours | 9.17 terawatt-hours | Iran |
| 1970s | 23.84 terawatt-hours | 0.8164 terawatt-hours | 23.02 terawatt-hours | Iran |
| 1980s | 17.87 terawatt-hours | 0.0039 terawatt-hours | 17.87 terawatt-hours | Iran |
| 1990s | 21.56 terawatt-hours | 1.98 terawatt-hours | 19.58 terawatt-hours | Iran |
| 2000s | 25.04 terawatt-hours | 1.45 terawatt-hours | 23.6 terawatt-hours | Iran |
| 2010s | -1.72 terawatt-hours | 2.84 terawatt-hours | 4.55 terawatt-hours | Sri Lanka |
| 2020s | 14.87 terawatt-hours | -1.4 terawatt-hours | 16.27 terawatt-hours | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from oil, Iran or Sri Lanka?
- Iran, at 6.07 terawatt-hours against 4.33 terawatt-hours in Sri Lanka as of 2025.
- What is the difference in annual change in primary energy from oil between Iran and Sri Lanka?
- 1.74 terawatt-hours, with Iran ahead.
- How many years of comparable data are there for Iran and Sri Lanka?
- 60 years are reported by both, from 1966 to 2025.
- How do Iran and Sri Lanka rank globally for annual change in primary energy from oil?
- Iran ranks 21st and Sri Lanka ranks 22nd of 79 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – 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.