Oman vs Spain: Fossil fuel supply by source
Oman
328.81 terawatt-hours
in 2025
Spain
313.08 terawatt-hours
in 2025
Oman rank
28th
Spain rank
29th
Fossil fuel supply by source over time
- Oman
- Spain
How they compare
Oman currently reports 328.81 terawatt-hours against 313.08 terawatt-hours in Spain, a difference of 15.73 terawatt-hours.
That makes Oman's figure about 1.1 times Spain's.
The two have swapped places 1 time across 48 shared years of data; in 1978 it was Spain ahead.
Oman ranks 28th and Spain ranks 29th of 76 countries.
Spain has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Oman | Spain | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 4.06 terawatt-hours | 16.22 terawatt-hours | 12.16 terawatt-hours | Spain |
| 1980s | 14.78 terawatt-hours | 29.06 terawatt-hours | 14.27 terawatt-hours | Spain |
| 1990s | 33.26 terawatt-hours | 94.23 terawatt-hours | 60.97 terawatt-hours | Spain |
| 2000s | 105.98 terawatt-hours | 297.54 terawatt-hours | 191.56 terawatt-hours | Spain |
| 2010s | 216.59 terawatt-hours | 317.77 terawatt-hours | 101.18 terawatt-hours | Spain |
| 2020s | 297.72 terawatt-hours | 314.81 terawatt-hours | 17.09 terawatt-hours | Spain |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher fossil fuel supply by source, Oman or Spain?
- Oman, at 328.81 terawatt-hours against 313.08 terawatt-hours in Spain as of 2025.
- What is the difference in fossil fuel supply by source between Oman and Spain?
- 15.73 terawatt-hours, with Oman ahead.
- How many years of comparable data are there for Oman and Spain?
- 48 years are reported by both, from 1978 to 2025.
- How do Oman and Spain rank globally for fossil fuel supply by source?
- Oman ranks 28th and Spain ranks 29th of 76 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 Fossil fuel supply by source. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours of total energy supply.