| # | Obiekt | Typ | Kraj | t CO₂e/rok |
|---|---|---|---|---|
| 1 | Obajana Cement Plant | Cementownia | Nigeria | 5 910 670 |
| 2 | Sokoto Cement Plant | Cementownia | Nigeria | 4 320 860 |
| 3 | Ojibawo Cement Plant | Cementownia | Nigeria | 3 202 735 |
| 4 | Port Harcourt Fertilizer Complex | Zakład chemiczny | Nigeria | 3 150 986 |
| 5 | Okpotu Cement Plant | Cementownia | Nigeria | 2 874 721 |
| 6 | Dangote Petroleum Refinery | Rafineria | Nigeria | 2 656 212 |
| 7 | Sagamu Cement Plant | Cementownia | Nigeria | 2 479 710 |
| 8 | Ewekoro 1 Cement Plant | Cementownia | Nigeria | 1 812 170 |
| 9 | Onne (Port Harcourt) Fertilizer Complex | Zakład chemiczny | Nigeria | 1 643 014 |
| 10 | Gboko Cement Plant | Cementownia | Nigeria | 1 223 364 |
| 11 | Ewekoro 2 Cement Plant | Cementownia | Nigeria | 1 037 150 |
| 12 | Iddo Cement Plant | Cementownia | Nigeria | 919 241 |
| 13 | Indorama Eleme Petrochemical, Port Harcourt | Zakład petrochemiczny | Nigeria | 414 464 |
| 14 | Ashaka Cement Plant | Cementownia | Nigeria | 404 790 |
| 15 | NGA-Obio/Akpor_methanol | Zakład chemiczny | Nigeria | 219 041 |
| 16 | PHRC Port Harcourt Refinery | Rafineria | Nigeria | 185 439 |
| 17 | NGA-Port Harcourt_methanol | Zakład chemiczny | Nigeria | 182 360 |
| 18 | Edo Modular Refinery | Rafineria | Nigeria | 78 986 |
| 19 | NNPC Warri Refinery | Rafineria | Nigeria | 76 189 |
| 20 | Kam Industries Kwara steel plant | Huta stali | Nigeria | 69 290 |
| 21 | Aradel Modular Refinery | Rafineria | Nigeria | 48 269 |
| 22 | OPAC Modular Refinery | Rafineria | Nigeria | 43 881 |
| 23 | Waltersmith Modular Refinery | Rafineria | Nigeria | 21 940 |
| 24 | Nigerian Newsprint Manufacturing Company Pulp Mill | Zakład celulozowo-papierniczy | Nigeria | 13 363 |
| 25 | DMCL Modular Refinery | Rafineria | Nigeria | 10 970 |
Metoda: ranking na podstawie otwartych danych — pojemność i emisja CO₂ z Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0). Posortowane po stronie serwera; tylko dane na poziomie firmy.
