Sr. No. Oil wells Reservoir depth Geological formation/age API gravity Extent of contamination (years) Biodegradation level
1 ChakNaurang (CNG 1-A) 2687 m Sakesar/chorgali/Khewra/Cambrian 18.4 27 Biodegraded (3)
2 Dhakni 4,844  Lockhart/shakesar/chorgali 39.31 24 Biodegraded (3)
3 MissaKeswal 2187m Chorgali/lower cambrian 36.2 21 Non biodegraded (0)
Table 1: The difference in the depth, formation/age, API gravity and biodegradation of crude oil within Potwar plateau.