Bulgaria vs Nigeria: Coal reserves
Bulgaria
2.17 billion tonnes
in 2023
Nigeria
2.14 billion tonnes
in 2023
Bulgaria rank
32nd
Nigeria rank
33rd
Coal reserves over time
- Bulgaria
- Nigeria
How they compare
Bulgaria currently reports 2.17 billion tonnes against 2.14 billion tonnes in Nigeria, a difference of 30.00 million tonnes.
Across all 16 years both countries report, Bulgaria has been ahead every year.
Bulgaria ranks 32nd and Nigeria ranks 33rd of 216 countries.
Bulgaria has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Bulgaria | Nigeria | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 2.18 billion tonnes | 355.00 million tonnes | 1.83 billion tonnes | Bulgaria |
| 2010s | 2.37 billion tonnes | 1.43 billion tonnes | 939.80 million tonnes | Bulgaria |
| 2020s | 2.27 billion tonnes | 2.14 billion tonnes | 126.00 million tonnes | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher coal reserves, Bulgaria or Nigeria?
- Bulgaria, at 2.17 billion tonnes against 2.14 billion tonnes in Nigeria as of 2023.
- What is the difference in coal reserves between Bulgaria and Nigeria?
- 30.00 million tonnes, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Nigeria?
- 16 years are reported by both, from 2008 to 2023.
- How do Bulgaria and Nigeria rank globally for coal reserves?
- Bulgaria ranks 32nd and Nigeria ranks 33rd of 216 countries.
- Where does this data come from?
- U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as Coal reserves. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Proved reserves, measured in tonnes, are generally those quantities that can be recovered in the future from known reservoirs under existing economic and operating conditions, according to geological and engineering information.