| Unit | Standard Form | Name | Scale | Offset |
| BBL/BBL | bbl/bbl | barrel per barrel | 1.00E+000 | 0.00E+000 |
| bbl/STB | bbl/bbl | barrel per standard barrel | 1.00E+000 | 0.00E+000 |
| m3/m3 | m3/m3 | cubic meter per cubic meter | 1.00E+000 | 0.00E+000 |
| mL/mL | mL/mL | milliliter per milliliter | 1.00E+000 | 0.00E+000 |
