Oil India Limited (OIL), Grade A, B & C (Executive) Various Posts Recruitment - 2026 (32 Vacancies)

Educational Qualification & Experience

A. Grade C Posts

• Superintending Research Scientist [Post Code : CH-01] (5 Vacancies)

  • Educational Qualification : Candidates must possess a Ph.D. in Chemistry with an M.Sc. in Chemistry (minimum 2 years duration with 60% marks) OR Ph.D. in Geology with a Degree in Geology/Applied Geology (minimum 2 years duration with 60% marks) OR Ph.D. in Chemical Engineering with a Master's Degree in Chemical Engineering (minimum 2 years duration with 60% marks) OR Ph.D. in Petroleum Engineering with a Master's Degree in Petroleum Engineering (minimum 2 years duration with 60% marks).

  • Work Experience: Minimum 04 years of post-qualification relevant work experience in scientific, engineering, R&D, technology development, or applied engineering roles in domains relevant to oil & gas, energy, chemicals, or materials.

B. Grade B Posts

• Senior Officer (Mechanical) [Post Code : ME-02] (14 Vacancies)

  • Educational Qualification: Bachelor's Degree in Mechanical Engineering of minimum 04 years duration with minimum 65% marks (excluding Automation/Automobile/Industrial/Power Manufacturing/Production/Mechatronics/Mining/Marine/Robotics Engineering, etc.).   

  • Work Experience: Not prescribed (Fresh graduates meeting criteria can apply).

• Senior Officer (Petroleum) [Post Code : PE-03] (4 Vacancies)

  • Educational Qualification : Master's degree in Petroleum Engineering / Technology of minimum 02 years duration with minimum 60% marks and having Engineering at the graduation level.

  • Work Experience : Not prescribed.

• Senior Accounts Officer / Senior Internal Auditor [Post Code : AC-04] (6 Vacancies)

  • Educational Qualification : Must be an Associate Member of ICAI / ICMAI. (Candidates without the membership certificate are not eligible).

  • Work Experience : Must have minimum two years' experience in the next lower pay scale or equivalent if coming from Government/PSUs.

C. Grade A Posts

• Hindi Officer (Official Language) [Post Code : HO-05] (2 Vacancies)

  • Educational Qualification : (a) Post Graduate Degree in Hindi.

  • Work Experience : Minimum 03 years of post-qualification relevant work experience handling matters relating to official language implementation/promotion, translation, etc..

• Confidential Secretary [Post Code : CS-06] (1 Vacancy)

  • Educational Qualification : Graduate with 01/02 years Diploma in Secretarial Practice / Modern Office Management / Secretarial Practice / Executive Assistant Diploma or equivalent, with knowledge of computer applications.

  • Work Experience : Minimum 02 years of post-qualification relevant experience working in secretarial functions.

How to Apply?

• Step-1 : Read Instructions and Advertisement — Read the instructions carefully and click on the "Click Here" hyperlink next to the "To Register" bullet point, and review the detailed advertisement before starting.

• Step-2 : Keep Required Documents Ready — Keep ready a valid email ID, mobile number, scanned passport-size color photograph (white background, max 3 months old, 100–200 KB, JPG/JPEG), and a scanned signature (signed in black ink on white paper, 80–150 KB, JPG/JPEG).

• Step-3 : Initiate Registration (Step-I) — Access the OIL online application portal, fill in your personal and contact details, and click "Generate OTP" to verify your mobile number and email ID.

• Step-4 : Submit Registration — Agree to the terms and conditions by ticking the checkbox, click "Re-verify" to check your entered values, check the verification boxes, and press "Submit" to receive your Application Sequence Number (User ID) and password via email/SMS.

• Step-5 : Access the Application Form (Step-II) — Click the "Go To Application" button (or re-login later using your User ID and password) to proceed with filling out the remaining personal, additional, communication, and qualification details.

• Step-6 : Upload Documents and Preview — Upload your scanned photograph and signature, then click the "Preview" tab to check that all particulars are correct before final submission (note that information cannot be edited after submission).

• Step-7 : Pay Application Fee Online — Submit the application form to be automatically redirected to the SBI e-Pay Lite payment gateway to pay the non-refundable application fee of ₹500 plus applicable taxes (SC/ST/PwBD/EWS/Ex-Servicemen are exempt).

• Step-8 : Print Application Form — Upon successful submission and fee payment, click the "Print" button to save and print a PDF copy of your submitted application form for future reference.

Selection Process

A. Selection Process for Grade C & Grade B Posts

(Applicable to : Superintending Research Scientist [CH-01], Senior Officer (Mechanical) [ME-02], Senior Officer (Petroleum) [PE-03], and Senior Accounts Officer/Senior Internal Auditor [AC-04])

The selection process comprises a Computer Based Test (CBT) and a Personal Interview (PI).

• Phase-I : Computer Based Test (CBT)

  • Total Marks : 100 marks.

  • Contribution to Final Score : Carries 85% weightage (contributes a maximum of 85 marks to the final score).

  • Duration : 1 hour and 30 minutes (Compensatory time of 20 minutes per hour is allowed for PwBD candidates).

  • Qualifying Marks :

    • 50 out of 100 for UR posts and posts reserved for OBC (NCL) & EWS.

    • 40 out of 100 for posts reserved for SC, ST & PwBD.

  • Shortlisting Ratio: Candidates who qualify in the CBT are called for the Personal Interview in the ratio of 1:5 based on CBT merit.

• Phase-II: Personal Interview (PI)

  • Total Marks : 15 marks.   

  • Contribution to Final Score : Carries 15% weightage (15 marks).

  • Qualifying Marks : No minimum qualifying marks are prescribed for the PI.

• Final Score Calculation (Out of 100) :

  Final Score = (CBT Marks obtained out of 100 x 0.85) + PI Marks obtained out of 15

  (Note : No percentage-based calculation, scaling, or alternative conversion is applied to PI marks).

B. Selection Process for Grade A Posts

(Applicable to : Hindi Officer (Official Language) [HO-05] and Confidential Secretary [CS-06])

The selection process consists of a Computer Based Test (CBT) followed by a Proficiency Test / Skill Test.

• Phase-I : Computer Based Test (CBT)

  • Total Marks : 100 marks.

  • Contribution to Final Selection : Carries 100% weightage (sole basis for final merit preparation, subject to qualifying Phase-II).
    

  • Duration : 1 hour and 30 minutes (with compensatory time for PwBD candidates).

  • Qualifying Marks :

    • 50 out of 100 for UR posts and posts reserved for OBC (NCL).

    • 40 out of 100 for posts reserved for PwBD.

  • Shortlisting Ratio : Candidates qualifying in the CBT are shortlisted for the Skill Test in the ratio of 1:2 in order of merit.

• Phase-II: Proficiency Test / Skill Test

  • Nature : Qualifying only; it carries no weightage in final merit determination.

  • Qualifying Marks : Minimum 50 out of 100 marks are required to pass. Candidates failing to secure this are disqualified irrespective of CBT scores.

  • Components :

    • For Confidential Secretary [CS-06] : Shorthand & Transcription.

    • For Hindi Officer (Official Language) [HO-05] : Translation, Essay Writing, Computer Application, and Bilingual Typing skill/proficiency components.

• Final Merit Preparation : Prepared solely based on CBT marks (out of 100) for candidates who successfully clear the Proficiency/Skill Test, arranged in descending order of merit.