| Carbon number of carboxylic acid | PB crude oil (%) | HB crude oil (%) | Carbon number of carboxylic acid | PB crude oil (%) | HB crude oil (%) |
| C9 | 0.5 | 2.258 | C20 | 0.591 | 0.621 |
| C10 | 0.696 | 2.858 | C21 | 0.221 | 0.04 |
| C11 | 0.461 | 1.096 | C22 | 0.389 | 0.381 |
| C12 | 9.299 | 14.21 | C23 | 0.196 | 0.19 |
| C13 | 0.431 | 0.757 | C24 | 0.425 | 0.502 |
| C14 | 3.861 | 4.36 | C25 | 0.191 | 0.105 |
| C15 | 2.000 | 1.794 | C26 | 0.275 | 0.203 |
| C16 | 54.416 | 48.806 | C27 | 0.112 | - |
| C17 | 0.924 | 0.77 | C28 | 0.146 | - |
| C18 | 24.455 | 20.893 | C29 | 0.07 | - |
| C19 | 0.257 | 0.155 | C30 | 0.083 | - |