Oil India Senior Officer Exam Guide 2026
Oil India Senior Officer 2026 notification updates and complete exam guide. Check exam dates, vacancies, eligibility criteria, selection process, syllabus, and application details.
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📊 Oil India Senior Officer Recruitment 2025: Overview
| Name of Organization | Oil India Limited (OIL) |
|---|---|
| Posts | Senior Officer (Mechanical, Civil, Electrical, IT, HR, Finance, Legal) |
| Year | 2025 |
| Vacancy | 97 |
| Apply Online Start Date | August 26, 2025 (3:00 PM) |
| Apply Online Last Date | September 26, 2025 (11:59 PM) |
| Exam Date | 3rd November 2025 |
| Mode of Exam | Online (Computer-Based Test) + Personal Interview / Skill Test (as per post) |
| Selection Process | Computer Based Test (CBT) Personal Interview (for most posts) Skill/Proficiency Test (for some posts) |
| Official Website | www.oil-india.com |
📊 Post Details & Salary Structure
| Post Name & Post Code | Number of Vacancy |
|---|---|
| Senior Officer (Chemical) (CH-02) | 06 |
| Senior Officer (Chemical Engineering) (CE-03) | 06 |
| Senior Officer (Civil) (CIV-04) | 05 |
| Senior Officer (Electrical) (EE-05) | 06 |
| Senior Officer (Petroleum) (PE-06) | 01 |
| Senior Accounts Officer / Senior Internal Auditor (AC-07) | 05 |
| Senior Officer (IT) (IT-08) | 03 |
| Senior Officer (Mechanical) (ME-09) | 35 |
| Senior Officer (Fire & Safety) (FS-10) | 01 |
| Senior Officer (Public Affairs) (PA-11) | 02 |
| Senior Officer (HSE) (S&E-12) | 01 |
| Senior Officer (Geophysics) (GP-13) | 04 |
| Senior Officer (Geology) (GEO-14) | 03 |
| Senior Officer (Legal / Land) (LL-15) | 05 |
| Senior Officer (HR) (HR-16) | 03 |
| Senior Officer (Security) (SO-17) | 01 |
| Senior Officer (Company Secretary) (COS-18) | 01 |
| Senior Officer (Electronics & Communication) (E&C-19) | 09 |
| Total | 97 |
📊 Important Dates & Schedule
- SC
- Nil
- ST
- Nil
- EWS
- Nil
- General
- ₹500 + Applicable Taxes
- Category
- Application Fee
- OBC (NCL)
- ₹500 + Applicable Taxes
- PWD (PwBD)
- Nil
- Ex-Servicemen
- Nil
📊 Exam Pattern & Marking Scheme
| Phase | Selection Test | Total Marks | Qualifying Marks % |
|---|---|---|---|
| Phase-I | Computer Based Test (CBT) | 100 (Weightage 85%) | 50% for UR / OBC (NCL) / EWS 40% for SC / ST / PwBD |
| Phase-II | Personal Interview (PI) | 15 (Weightage 15%) | No Qualifying Marks |
📊 Exam Pattern & Marking Scheme
| Post Name | Educational Qualification |
|---|---|
| Senior Officer (Chemical) (CH-02) | Postgraduate in Chemistry (2 years) with minimum 60% marks and Physics, Chemistry & Mathematics at Graduation level. |
| Senior Officer (Chemical Engineering) (CE-03) | Bachelor’s Degree in Chemical Engineering (4 years) with minimum 65% marks. |
| Senior Officer (Civil) (CIV-04) | Bachelor’s Degree in Civil Engineering (4 years) with minimum 65% marks. |
| Senior Officer (Electrical) (EE-05) | Bachelor’s Degree in Electrical Engineering (4 years) with minimum 65% marks (Excluding Electrical & Electronics/Communication/Instrumentation). |
| Senior Officer (Petroleum) (PE-06) | Bachelor’s Degree in Petroleum Engineering (4 years) with minimum 65% marks. |
| Senior Accounts Officer / Sr. Internal Auditor (AC-07) | Associate Member of ICAI/ICMAI. |
| Senior Officer (IT) (IT-08) | Bachelor’s Degree in Computer Science/IT Engineering (4 years) with minimum 65% marks. |
| Senior Officer (Mechanical) (ME-09) | Bachelor’s Degree in Mechanical Engineering (4 years) with minimum 65% marks (Excluding Automation/Automobile/Production/Marine/Mining etc.). |
| Senior Officer (Fire & Safety) (FS-10) | Bachelor’s Degree in Fire & Safety Engineering / Fire Engineering (4 years) with minimum 65% marks. |
| Senior Officer (Public Affairs) (PA-11) | Postgraduate Degree in Social Work (2 years) with minimum 60% marks. |
| Senior Officer (HSE) (S&E-12) | Bachelor’s Degree in Environmental Engineering / HSE (4 years) with minimum 65% marks OR B.E./B.Tech in any discipline + Master’s in Environmental Engg./HSE with 60% marks OR Master’s in Environmental Science with 60% marks. |
| Senior Officer (Geophysics) (GP-13) | Postgraduate in Geophysics/Applied Geophysics/Exploration Geophysics (2 years) with minimum 60% marks. |
| Senior Officer (Geology) (GEO-14) | Postgraduate in Geology/Applied Geology (2 years) with minimum 60% marks and Mathematics at Graduation level. |
| Senior Officer (Legal/Land) (LL-15) | Bachelor’s Degree in Law (LLB) with minimum 60% marks. |
| Senior Officer (HR) (HR-16) | MBA/PGDM/PG in HR/PM/IR/Labour Welfare (2 years) with minimum 60% marks. |
| Senior Officer (Security) (SO-17) | Graduate (3 years) in any discipline + Minimum 2 years relevant experience in Defence/Paramilitary/Police (Captain/Asst. Commandant/DSP rank or equivalent). |
| Senior Officer (Company Secretary) (COS-18) | Associate Member of ICSI (Company Secretary). |
| Senior Officer (Electronics & Communication) (E&C-19) | Bachelor’s Degree in Electronics & Communication / Electronics & Telecommunication Engineering (4 years) with minimum 65% marks. |
📊 Post Details & Salary Structure
| OIL Senior Officer Post Name | Age Limit for UR / EWS | Age Limit for OBC | Age Limit for SC/ST |
|---|---|---|---|
| Senior Officer (Chemical) (CH-02) | 29 Years | 32 Years | 34 Years |
| Senior Officer (Chemical Engineering) (CE-03) | 27 Years | 30 Years | 32 Years |
| Senior Officer (Civil) (CIV-04) | 27 Years | 30 Years | 32 Years |
| Senior Officer (Electrical) (EE-05) | 27 Years | 30 Years | 32 Years |
| Senior Officer (Petroleum) (PE-06) | 27 Years | 30 Years | 32 Years |
| Senior Accounts Officer / Sr. Internal Auditor (AC-07) | 29 Years | 32 Years | 34 Years |
| Senior Officer (IT) (IT-08) | 27 Years | 30 Years | 32 Years |
| Senior Officer (Mechanical) (ME-09) | 27 Years | 30 Years | 32 Years |
| Senior Officer (Fire & Safety) (FS-10) | 27 Years | 30 Years | 32 Years |
| Senior Officer (Public Affairs) (PA-11) | 29 Years | 32 Years | 34 Years |
| Senior Officer (HSE) (S&E-12) | 27 Years | 30 Years | 32 Years |
| Senior Officer (Geophysics) (GP-13) | 29 Years | 32 Years | 34 Years |
| Senior Officer (Geology) (GEO-14) | 29 Years | 32 Years | 34 Years |
| Senior Officer (Legal/Land) (LL-15) | 29 Years | 32 Years | 34 Years |
| Senior Officer (HR) (HR-16) | 29 Years | 32 Years | 34 Years |
| Senior Officer (Security) (SO-17) | 29 Years | 32 Years | 34 Years |
| Senior Officer (Company Secretary) (COS-18) | 29 Years | 32 Years | 34 Years |
| Senior Officer (Electronics & Communication) (E&C-19) | 27 Years | 30 Years | 32 Years |
📊 Exam Pattern & Marking Scheme
| Subject | No. of Questions | Marks |
|---|---|---|
| General Awareness | 10 | 10 |
| English | 10 | 10 |
| Aptitude | 15 | 15 |
| Reasoning | 15 | 15 |
| Concerned Subjects | 50 | 50 |
| Total | 100 | 100 |
📊 Post Name & Classification Details
| Subject | Topics Covered |
|---|---|
| Reasoning | Number Ranking, Figurative Classification, Analogies, Coding-Decoding, Directions, Blood Relations, Arrangements, Number Series, Venn Diagrams, Arithmetical Reasoning, etc. |
| English | Synonyms & Antonyms, Idioms & Phrases, One-Word Substitution, Vocabulary, Fill in the Blanks, Comprehension, Tenses, Sentence Transformation, Active–Passive Voice, Direct–Indirect Speech. |
| General Awareness | Current Affairs (National & International), History, Science & Technology, Indian Economy, Important Days, Awards & Honors, Abbreviations, Books & Authors, Capitals, Policies, etc. |
| Aptitude | Races & Games, Percentages, Time & Work, Simple & Compound Interest, Ratio & Proportion, Mensuration, Algebra, Probability, Permutation & Combination, Time & Distance, LCM/HCF, Areas, Volumes, etc. |
| Concerned Subjects | Engineering Mathematics, Applied Mechanics & Design, Fluid Mechanics, Thermal Sciences, Materials, Manufacturing & Industrial Engineering, Geology, Geophysics, and other discipline-specific topics. |
📊 Salary & Pay Scale Details
- Post
- Senior Officer (All Disciplines)
- Pay Scale
- Rs 60,000 to Rs 1,80,000
- Starting Basic Pay
- Rs 60,000 per month
- Total Emoluments (at Minimum Scale)
- Rs 1,20,000 per month (including allowances)
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