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.

📊 Oil India Senior Officer Recruitment 2025: Overview
Name of OrganizationOil India Limited (OIL)
PostsSenior Officer (Mechanical, Civil, Electrical, IT, HR, Finance, Legal)
Year2025
Vacancy97
Apply Online Start DateAugust 26, 2025 (3:00 PM)
Apply Online Last DateSeptember 26, 2025 (11:59 PM)
Exam Date3rd November 2025
Mode of ExamOnline (Computer-Based Test) + Personal Interview / Skill Test (as per post)
Selection ProcessComputer Based Test (CBT) Personal Interview (for most posts) Skill/Proficiency Test (for some posts)
Official Websitewww.oil-india.com
📊 Post Details & Salary Structure
Post Name & Post CodeNumber 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
Total97
📊 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
PhaseSelection TestTotal MarksQualifying Marks %
Phase-IComputer Based Test (CBT)100 (Weightage 85%)50% for UR / OBC (NCL) / EWS 40% for SC / ST / PwBD
Phase-IIPersonal Interview (PI)15 (Weightage 15%)No Qualifying Marks
📊 Exam Pattern & Marking Scheme
Post NameEducational 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 NameAge Limit for UR / EWSAge Limit for OBCAge Limit for SC/ST
Senior Officer (Chemical) (CH-02)29 Years32 Years34 Years
Senior Officer (Chemical Engineering) (CE-03)27 Years30 Years32 Years
Senior Officer (Civil) (CIV-04)27 Years30 Years32 Years
Senior Officer (Electrical) (EE-05)27 Years30 Years32 Years
Senior Officer (Petroleum) (PE-06)27 Years30 Years32 Years
Senior Accounts Officer / Sr. Internal Auditor (AC-07)29 Years32 Years34 Years
Senior Officer (IT) (IT-08)27 Years30 Years32 Years
Senior Officer (Mechanical) (ME-09)27 Years30 Years32 Years
Senior Officer (Fire & Safety) (FS-10)27 Years30 Years32 Years
Senior Officer (Public Affairs) (PA-11)29 Years32 Years34 Years
Senior Officer (HSE) (S&E-12)27 Years30 Years32 Years
Senior Officer (Geophysics) (GP-13)29 Years32 Years34 Years
Senior Officer (Geology) (GEO-14)29 Years32 Years34 Years
Senior Officer (Legal/Land) (LL-15)29 Years32 Years34 Years
Senior Officer (HR) (HR-16)29 Years32 Years34 Years
Senior Officer (Security) (SO-17)29 Years32 Years34 Years
Senior Officer (Company Secretary) (COS-18)29 Years32 Years34 Years
Senior Officer (Electronics & Communication) (E&C-19)27 Years30 Years32 Years
📊 Exam Pattern & Marking Scheme
SubjectNo. of QuestionsMarks
General Awareness1010
English1010
Aptitude1515
Reasoning1515
Concerned Subjects5050
Total100100
📊 Post Name & Classification Details
SubjectTopics Covered
ReasoningNumber Ranking, Figurative Classification, Analogies, Coding-Decoding, Directions, Blood Relations, Arrangements, Number Series, Venn Diagrams, Arithmetical Reasoning, etc.
EnglishSynonyms & Antonyms, Idioms & Phrases, One-Word Substitution, Vocabulary, Fill in the Blanks, Comprehension, Tenses, Sentence Transformation, Active–Passive Voice, Direct–Indirect Speech.
General AwarenessCurrent Affairs (National & International), History, Science & Technology, Indian Economy, Important Days, Awards & Honors, Abbreviations, Books & Authors, Capitals, Policies, etc.
AptitudeRaces & Games, Percentages, Time & Work, Simple & Compound Interest, Ratio & Proportion, Mensuration, Algebra, Probability, Permutation & Combination, Time & Distance, LCM/HCF, Areas, Volumes, etc.
Concerned SubjectsEngineering 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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