Oil India Limited (OIL), a Maharatna Public Sector Undertaking under the Ministry of Petroleum and Natural Gas, Government of India, has released Advertisement No. HRAQ/REC-EX-B/2026-02 dated 11 September 2026 inviting applications from Indian Nationals for 3 posts in Grade D/E/F: Deputy Chief Chemist (CHEM-01), Deputy Chief Engineer – Reservoir (RES-02) and Economist (ECO-03). The online application window opened on 11 September 2026 at 11:00 hrs and closes on 10 October 2026 at 11:00 hrs. All three are senior-level positions requiring 9 or more years of post-qualification relevant work experience. Selection is through Personal Interview only. The cut-off date for all eligibility conditions including age, experience and qualification is 10 October 2026.
Important Note: Four things every applicant must verify before applying. First, the experience requirement is stringent and very specifically defined. Academic, teaching, research fellowship, JRF/SRF, PhD scholar, project-based, consultancy, internship and similar engagements are explicitly excluded from the definition of “Post Qualification Relevant Work Experience.” Only full-time employment in Executive cadre in Government departments, PSUs, autonomous bodies or reputed private sector (with annual turnover of Rs. 500 crores or more) counts. Second, candidates in permanent employment with Government or PSUs must produce a valid No Objection Certificate (NOC) from their employer at the time of Personal Interview without which they will not be allowed to appear. Third, the Economist post offers entry at Grade D, E or F depending on years of experience (9, 13 or 17 years respectively) – candidates must apply for the specific grade they are eligible for. Fourth, the maximum upper age limit for any candidate including all relaxations shall not exceed 54 years.
Oil India Recruitment 2026: Overview
| Particulars | Details |
|---|---|
| Organisation | Oil India Limited (OIL), Maharatna PSU |
| Ministry | Ministry of Petroleum and Natural Gas, Government of India |
| Advertisement No. | HRAQ/REC-EX-B/2026-02 |
| Advertisement Date | 11 September 2026 |
| Posts | Deputy Chief Chemist, Deputy Chief Engineer (Reservoir), Economist |
| Total Posts | 03 |
| Grades | Grade D / Grade E / Grade F |
| Cut-off Date | 10 October 2026 (for age, experience, qualification, pay scale) |
| Application Mode | Online only at oil-india.com |
| Application Opens | 11 September 2026 at 11:00 hrs |
| Application Closes | 10 October 2026 at 11:00 hrs |
| Selection Process | Personal Interview (PI) only |
| Primary Posting | Field Headquarters, Duliajan, Assam |
| Official Website | oil-india.com |
Oil India Recruitment 2026: Important Dates
| Event | Date/Time |
|---|---|
| Application Opens | 11 September 2026 at 11:00 hrs |
| Application Closes | 10 October 2026 at 11:00 hrs |
| Cut-off Date (Age, Experience, Qualification) | 10 October 2026 |
| Personal Interview Date | To be communicated by email to shortlisted candidates |
Oil India Recruitment 2026: Post-wise Vacancy Details
| SN | Post Name | Post Code | Posts | Category | Grade | Pay Scale | Upper Age Limit |
|---|---|---|---|---|---|---|---|
| 1 | Deputy Chief Chemist | CHEM-01 | 01 | OBC(NCL)-01 | D | Rs. 90,000 to Rs. 2,40,000 | 42 years |
| 2 | Deputy Chief Engineer (Reservoir) | RES-02 | 01 | UR-01 | D | Rs. 90,000 to Rs. 2,40,000 | 37/39 years |
| 3 | Economist | ECO-03 | 01 | UR-01 | D/E/F | Grade D: Rs. 90,000 to Rs. 2,40,000; Grade E/F: Rs. 1,00,000 to Rs. 2,60,000 | Grade D: 39 yrs; Grade E: 44 yrs; Grade F: 49 yrs |
Oil India Recruitment 2026: Pay and Emoluments
| Grade | Pay Scale | Approximate Gross Emoluments |
|---|---|---|
| Grade D | Rs. 90,000 to Rs. 2,40,000 | Approximately Rs. 1,70,000 per month at minimum of scale |
| Grade E | Rs. 1,00,000 to Rs. 2,60,000 | Approximately Rs. 2,00,000 per month at minimum of scale |
| Grade F | Rs. 1,00,000 to Rs. 2,60,000 | Approximately Rs. 2,00,000 per month at minimum of scale |
In addition to basic pay: Industrial pattern DA, HRA or company leased/self-lease accommodation, free medical benefits for self and dependents, Gratuity/PF, House Building Loan, Vehicle Loan, Group Insurance and other benefits as per company rules.
Oil India Recruitment 2026: Eligibility
Post 1: Deputy Chief Chemist (CHEM-01) – Grade D, OBC(NCL)
| Criteria | Details |
|---|---|
| Essential Qualification | Postgraduate Degree in Chemistry of minimum 2 years duration with minimum 60% marks or equivalent CGPA/Grade; must have studied Physics, Chemistry and Mathematics at the graduation level |
| Minimum Post-Qualification Experience | 9 years as a Chemist engaged in Drilling and/or Workover Operations or as a Drilling Fluid Specialist, or in-line functional work experience in Executive cadre in Government/PSU/autonomous body/reputed private sector |
| Preferred | Experience in Oil and Gas Sector |
| Upper Age Limit | 42 years (as on 10/10/2026) |
| PwBD Suitability | Dw, AAV |
Job Responsibilities include: Preparation, testing, maintenance and quality control of drilling/workover fluids; ensuring HSE compliance; managing wellsite chemicals, equipment and inventory; monitoring fluid supply; supporting cementing, oil spotting, loss control and well kick management; supervising recycling/reuse of drilling fluids; maintaining operational records and documentation.
Post 2: Deputy Chief Engineer (Reservoir) (RES-02) – Grade D, UR
| Criteria | Details |
|---|---|
| Essential Qualification (Option A) | Bachelor’s Degree in Petroleum Engineering of minimum 4 years duration with minimum 65% marks or equivalent CGPA/Grade |
| Essential Qualification (Option B) | Master’s Degree in Petroleum Engineering or Petroleum Technology of minimum 2 years duration with minimum 60% marks or equivalent CGPA/Grade along with a Bachelor’s Degree in Engineering in any discipline of minimum 4 years duration |
| Minimum Post-Qualification Experience | 9 years as a Reservoir Engineer or in-line functional work experience in Executive cadre in Government/PSU/autonomous body/reputed private sector |
| Preferred | Experience in upstream Oil and Gas Sector |
| Upper Age Limit | 37 years (B.Tech route) / 39 years (M.Tech route with PG degree benefit) as on 10/10/2026 |
| PwBD Suitability | HH; OA, OL, CP, LC, Dw, AAV; SLD, MI; MD involving above |
Job Responsibilities include: Reservoir characterisation and modelling; hydrocarbon reserve estimation using volumetric analysis, decline curve analysis, material balance and SPE/PRMS guidelines; dynamic reservoir simulation using ECLIPSE, CMG or equivalent; field development planning; well placement, completion strategy and production forecasting; well and reservoir performance monitoring; enhanced oil recovery studies; preparation of technical reports and presentations.
Post 3: Economist (ECO-03) – Grade D/E/F, UR
| Criteria | Details |
|---|---|
| Essential Qualification | Postgraduate Degree in Economics or Business Economics with minimum 60% marks or equivalent CGPA/Grade |
| Experience for Grade D | 9 years post-qualification relevant work experience |
| Experience for Grade E | 13 years post-qualification relevant work experience |
| Experience for Grade F | 17 years post-qualification relevant work experience |
| Experience Nature | As an Economist or in-line functional work experience in Executive cadre; relevant experience must include exposure in macroeconomic analysis, sector-specific policy research/regulatory analysis, economic modelling using econometric software, economic project evaluation or data analysis |
| Upper Age Limit | Grade D: 39 yrs; Grade E: 44 yrs; Grade F: 49 yrs (as on 10/10/2026) |
| PwBD Suitability | LV; HH; OA, BL, OL, OAL, CP, Dw, AAV, MDy; MD involving above |
Job Responsibilities include: Identification, assessment and recommendation of new business/investment opportunities in India and overseas; monitoring domestic and global economic and policy developments; conducting due diligence for prospective ventures; managing regulatory requirements for overseas ventures; developing stakeholder relationships with Government Ministries, embassies and industry bodies; creating and managing risk-weighted investment portfolios; preparing briefing papers and presentations for management and Government.
Age Relaxation
| Category | Relaxation |
|---|---|
| OBC (NCL) | As per Government of India norms |
| SC / ST | As per Government of India norms |
| PwBD | As per Government of India directives |
| Ex-Servicemen | 5 years |
| J&K domicile (01.01.1980 to 31.12.1989) | 5 years |
| PhD in relevant discipline | 3 years |
| OIL internal candidates (otherwise eligible) | Up to 54 years |
| Maximum age limit (all relaxations included) | 54 years (absolute ceiling) |
What Counts as Post-Qualification Relevant Work Experience
Only full-time employment in Executive cadre after obtaining the minimum essential qualification counts. The following are explicitly EXCLUDED:
| Not Counted as Experience |
|---|
| Academic/teaching/research/training/fellowship/stipend-based engagements |
| JRF, SRF, PhD Scholar, Research Associate, Project Associate, Project Assistant, Teaching Assistant, Post-Doctoral Fellow |
| Visiting Faculty, Guest Faculty, Consultant on retainership/stipendiary basis |
| Apprenticeship, internship, observership, ad-hoc or part-time engagements |
| Honorary engagements of any nature |
For private sector experience to be counted, the company must have a minimum annual turnover of Rs. 500 crores.
Experience Certificate Requirements
For past employment: Experience letter/service certificate on official letterhead stating name, designation, date of joining, date of relieving and roles/responsibilities, plus any 2 of: last pay slip, annual increment letter, promotion/transfer order, PF statement, offer/appointment letter.
For current employment: Offer/appointment letter plus current pay slip/employment proof plus any 2 of: employer identity card, annual increment letter, promotion/transfer order, PF statement; plus a document detailing roles and responsibilities.
Selection Process
| Stage | Details |
|---|---|
| Shortlisting | Based on eligibility criteria; company may raise minimum standards if applications are large in number |
| Personal Interview (PI) | Selection solely on the basis of PI marks, subject to eligibility and document verification |
| Pre-Employment Medical Examination (PEME) | At OIL Hospital, Duliajan or authorised Government/Company hospital |
| Probation | 1 year probation period; confirmation in writing after successful completion |
Travel Reimbursement for Interview
| Grade | Reimbursement |
|---|---|
| Grade D and Grade E candidates | AC-II Tier rail fare (base fare only, excluding Premier Trains); Economy class air fare for travel within Northeast region and up to Kolkata |
| Grade F candidates | Economy class air fare |
How to Apply for Oil India Recruitment 2026
- Visit oil-india.com and go to the Careers section under Current Openings – Advertisement List.
- Click on the link for Advt. No. HRAQ/REC-EX-B/2026-02 for the post you wish to apply for.
- Register (Sign-Up) by selecting your post and providing personal details, valid email ID and mobile number. Complete OTP authentication.
- After registration, fill in Basic Details (Address), Qualification Details, Eligibility Details and Experience Details.
- Upload photograph (recent passport-size colour), signature (black ink on white paper) and all relevant scanned certificates (JPG/JPEG/PNG/PDF format, max 5 MB per file, total max 200 MB).
- Preview all entered information carefully before proceeding. Once the General Details section is locked (after clicking Next), it cannot be edited.
- Submit the application. Save the confirmation with your Application Number.
- Candidates applying for more than one post must submit separate applications for each post.
- No printout or hard copy needs to be sent to OIL. Keep email ID and mobile number active throughout.
- Apply well before 10 October 2026 at 11:00 hrs. Do not wait until the last day.
Oil India Recruitment 2026: Important Links
| Description | Link |
|---|---|
| Apply Online and Official Advertisement | Click Here |
| Oil India Limited Official Website | Click Here |
Oil India Recruitment 2026: FAQs
Q1. How many posts are there in Oil India Recruitment 2026 (Advt. HRAQ/REC-EX-B/2026-02)?
3 posts: Deputy Chief Chemist – CHEM-01 (1, OBC-NCL, Grade D), Deputy Chief Engineer Reservoir – RES-02 (1, UR, Grade D) and Economist – ECO-03 (1, UR, Grade D/E/F).
Q2. What is the last date to apply?
10 October 2026 at 11:00 hrs through the online portal at oil-india.com.
Q3. What is the selection process?
Only Personal Interview (PI). There is no written examination. Shortlisted candidates are called for PI and the decision is based solely on PI performance.
Q4. What experience is required?
Minimum 9 years of Post-Qualification Relevant Work Experience in Executive cadre in the relevant field. JRF/SRF/PhD Scholar/Research Associate/Project Assistant/internship/fellowship experiences are not counted.
Q5. What is the cut-off date?
10 October 2026 for all eligibility conditions including age, experience, qualification and pay scale equivalency.
Q6. What is the Economist post grade?
The Economist post (ECO-03) is offered in Grade D (9 yrs experience), Grade E (13 yrs) or Grade F (17 yrs). Candidates must apply for the specific grade they are eligible for.
Q7. What is the salary for Grade D posts?
Pay scale Rs. 90,000 to Rs. 2,40,000 with approximate gross emoluments of Rs. 1,70,000 per month at the minimum of the scale.
Q8. Can private sector candidates apply?
Yes, but only from companies with a minimum annual turnover of Rs. 500 crores. Documentary proof of turnover must be submitted.
Q9. What should candidates in Government/PSU employment do?
They must produce a valid No Objection Certificate (NOC) from their current employer at the time of Personal Interview. Without this, they will not be permitted to appear.
Disclaimer
The information in this article is based on the official Advertisement No. HRAQ/REC-EX-B/2026-02 dated 11 September 2026 published by Oil India Limited on oil-india.com. Candidates must read the complete official notification and verify all eligibility conditions before applying online at oil-india.com. OIL reserves the right to cancel, modify or alter the recruitment process at any stage. JobShouter is not associated with Oil India Limited. This article is for informational purposes only.
