| Crude Oil Type | Residue (%) | |
| Modular Refinery | Modified Modular Rrefinery | |
| Nigerian Brass 2012 | 11.22 | 1.29 |
| Brass River 2011 | 11.35 | 1.30 |
| Oso Condensate 2016 | 11.83 | 1.27 |
| Agbami 2012 | 12.09 | 1.39 |
| Erha 2012 | 16.34 | 1.85 |
| Akpo 2014 | 16.59 | 1.77 |
| Akpo Blend 2011 | 17.16 | 1.84 |
| Forcados Blend 2014 | 18.51 | 2.15 |
| Nigerian Brass 2015 | 23.75 | 2.71 |
| Okwori 2011 | 24.38 | 2.62 |
| Amenam Blend 2011 | 25.44 | 2.54 |
| Bonny Light 2011 | 26.81 | 3.08 |
| Qua Iboe 2012 | 27.45 | 3.14 |
| Okwuibome 2014 | 27.96 | 3.22 |
| Nigerian Forcados | 30.30 | 3.54 |
| Bonga 2012 | 31.47 | 3.66 |
| Bonga 2014 | 32.45 | 3.78 |
| Usan 2013 | 33.66 | 3.95 |
| Usan 2015 | 36.19 | 4.22 |
| Okoro 2012 | 42.16 | 4.92 |