Iran vs South Africa: Annual change in primary energy from oil
Iran
6.07 terawatt-hours
in 2025
South Africa
6.7 terawatt-hours
in 2025
Iran rank
21st
South Africa rank
19th
Annual change in primary energy from oil over time
- Iran
- South Africa
How they compare
South Africa currently reports 6.7 terawatt-hours against 6.07 terawatt-hours in Iran, a difference of 0.63 terawatt-hours.
That makes South Africa's figure about 1.1 times Iran's.
The two have swapped places 19 times across 60 shared years of data; in 1966 it was Iran ahead.
Iran ranks 21st and South Africa ranks 19th of 79 countries.
Across the 7 decades both report, Iran averaged higher in 6 and South Africa in 1.
Head to head by decade
| Decade | Iran | South Africa | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 9.41 terawatt-hours | 6.99 terawatt-hours | 2.41 terawatt-hours | Iran |
| 1970s | 23.84 terawatt-hours | 4.48 terawatt-hours | 19.36 terawatt-hours | Iran |
| 1980s | 17.87 terawatt-hours | 5.81 terawatt-hours | 12.06 terawatt-hours | Iran |
| 1990s | 21.56 terawatt-hours | 6.18 terawatt-hours | 15.38 terawatt-hours | Iran |
| 2000s | 25.04 terawatt-hours | 2.86 terawatt-hours | 22.18 terawatt-hours | Iran |
| 2010s | -1.72 terawatt-hours | 3.42 terawatt-hours | 5.13 terawatt-hours | South Africa |
| 2020s | 14.87 terawatt-hours | -8.38 terawatt-hours | 23.25 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 South Africa?
- South Africa, at 6.7 terawatt-hours against 6.07 terawatt-hours in Iran as of 2025.
- What is the difference in annual change in primary energy from oil between Iran and South Africa?
- 0.63 terawatt-hours, with South Africa ahead.
- How many years of comparable data are there for Iran and South Africa?
- 60 years are reported by both, from 1966 to 2025.
- How do Iran and South Africa rank globally for annual change in primary energy from oil?
- Iran ranks 21st and South Africa ranks 19th 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.