| Post Name | Total Post | IOCL Apprentice Eligibility |
| Data Entry Operator – Fresher (Trade Apprentice) | 41 | 10+2 Intermediate Passed from Any Recognized Board. |
| Secretariat Assistant (Trade Apprentice) | 39 | Bachelor Degree BA / B.Sc / B.Com from Any Recognized University. |
| Accountant (Trade Apprentice) | 45 | Bachelor Degree in Commerce B.Com from Any Recognized University. |
| Fitter (Mechanical) (Trade Apprentice) | 161 | Class 10th High School Passed with 2 Years ITI in Fitter. |
| Data Entry Operator (Skill Certificate) (Trade Apprentice) | 32 | 10+2 Intermediate Passed with Skill Certificate Holder in Domestic Data Entry Operator. |
| Mechanical (Technician Apprentice) | 163 | Diploma in Mechanical Engineering Any Recognized Institute in India. |
| Electrical (Technician Apprentice) | 198 | Diploma in Electrical Engineering in Any Recognized Institute in India. |
| Instrumentation (Technician Apprentice) | 74 | Diploma in Instrumentation / Instrumentation & Electronics / Instrumentation & Control Engineering Any Recognized Institute in India. |
| Boiler – Mechanical (Trade Apprentice) | 54 | Bachelor Degree in Science B.Sc (PCM / Industrial Chemistry). |
| Attendant Operator – Chemical Plant (Trade Apprentice) | 396 | Bachelor Degree in Science B.Sc (PCM / Industrial Chemistry). |
| Chemical (Technician Apprentice) | 332 | Diploma in Chemical Engineering / Refinery & Petro Chemical Engineering Any Recognized Institute in India. |
