| Score | Organism | Count per oil field (x1000) |
| 0 | Malassezia/Yeast | 0 |
| 1 | 1 | |
| 2 | 2 | |
| 3 | 2 - 5 | |
| 4 | >5 | |
| 0 | Cocci | 0 |
| 1 | 0 - 5 | |
| 2 | 5 - 15 | |
| 3 | 16 - 20 | |
| 4 | >20 | |
| 0 | Rods | 0 |
| 1 | 0 - 5 | |
| 2 | 5 - 15 | |
| 3 | 16 - 20 | |
| 4 | >20 | |
| 0 | Neutrophils and chromatin ribbons | 0 |
| 1 | 0 - 5 | |
| 2 | 5 - 15 | |
| 3 | 16 - 20 | |
| 4 | >20 | |
| 0 | Dirty background (debris, amorphous materials) | Clean background |
| 1 | Dirty background in one field | |
| 2 | Dirty background in two fields | |
| 3 | Dirty background in three fields | |
| 4 | Dirty background in all fields |