About Post
Important scope note: This post covers ONLY the 23 technical posts of Oil India Limited Advertisement No. HRAQ/REC-EX-B/2026-03. The same advertisement has 32 posts in total; the other 9 posts — Senior Accounts Officer / Senior Internal Auditor (6), Hindi Officer (2) and Confidential Secretary (1) — are non-technical and are NOT covered in this post.
Oil India Limited (OIL), a Maharatna public sector undertaking, has invited online applications for 23 technical executive posts: Superintending Research Scientist (5), Senior Officer (Mechanical) (14) and Senior Officer (Petroleum) (4). Online applications run from 15 October 2026, 4:00 PM to 14 November 2026, 11:00 AM. The tentative Computer Based Test (CBT) date is 28 December 2026. The job location is primarily Field Headquarters, Duliajan, Assam, and the posts are transferable.
Short Information & Overview
| Organization | Oil India Limited (OIL) |
| Total Post | 23 (technical posts only; the full advertisement has 32 posts) |
| Post Name | Executive (Technical): Superintending Research Scientist, Senior Officer (Mechanical), Senior Officer (Petroleum) |
| Advertisement Number | HRAQ/REC-EX-B/2026-03 dated 15 October 2026 |
| Education Qualification | Post-wise: Ph.D. with relevant Master’s degree (Scientist); 4-year B.E./B.Tech in Mechanical Engineering with 65% (Mechanical); 2-year Master’s in Petroleum Engineering/Technology with 60% plus an engineering graduation (Petroleum) |
| Age Limit | Post-wise upper age limits as on 14 November 2026: Scientist UR 37 years, OBC-NCL 40 years, SC/ST up to 42 years as applicable; Mechanical UR/EWS 27 years, OBC-NCL 30 years, SC/ST 32 years; Petroleum UR 29 years, OBC-NCL 32 years, SC/ST as per notification |
| Salary Pay Level | Grade C: Rs 80,000–2,20,000; Grade B: Rs 60,000–1,80,000 |
| Start Date | 15 October 2026, 4:00 PM |
| End Date | 14 November 2026, 11:00 AM |
| Official Website | oil-india.com |
| Application Mode | Online |
Application Fee & Important Dates
| Important Dates | Application Fee |
| Notification date: 15 October 2026 Online applications start: 15 October 2026, 4:00 PM Last date to apply online: 14 November 2026, 11:00 AM Tentative CBT: 28 December 2026 Cut-off date for age/qualification/experience: 14 November 2026 | General / OBC-NCL: Rs 500 plus applicable taxes SC / ST / EWS and other exempted categories: Nil |
Post Name & Qualification
| Post Name | Education Qualification |
| Superintending Research Scientist, code CH-01, Grade C | Ph.D. with relevant Master’s degree (Chemistry / Geology / Applied Geology / Chemical Engineering / Petroleum Engineering) with 60% and at least 4 years relevant post-qualification experience |
| Senior Officer (Mechanical), code ME-02, Grade B | 4-year B.E./B.Tech in Mechanical Engineering with minimum 65% marks |
| Senior Officer (Petroleum), code PE-03, Grade B | 2-year Master’s in Petroleum Engineering/Technology with minimum 60% marks plus an engineering graduation |
Total Post
| Post Name | Total Posts |
| Superintending Research Scientist (CH-01) | 5 |
| Senior Officer (Mechanical) (ME-02) | 14 |
| Senior Officer (Petroleum) (PE-03) | 4 |
| Total (technical posts in this post) | 23 |
Category Wise Total Post
| Post Name | UR | OBC-NCL | SC | ST | EWS | Total |
| Superintending Research Scientist | 3 | 1 | 1 | 0 | 0 | 5 |
| Senior Officer (Mechanical) | 7 | 3 | 2 | 1 | 1 | 14 |
| Senior Officer (Petroleum) | 3 | 1 | 0 | 0 | 0 | 4 |
| Total | 13 | 5 | 3 | 1 | 1 | 23 |
Age Limit
Upper age limits are post-wise, as on the cut-off date 14 November 2026. Superintending Research Scientist: UR 37 years, OBC-NCL 40 years, SC/ST up to 42 years as applicable. Senior Officer (Mechanical): UR/EWS 27 years, OBC-NCL 30 years, SC/ST 32 years. Senior Officer (Petroleum): UR 29 years, OBC-NCL 32 years, SC/ST relaxation as per the notification. Other age relaxations apply as per government rules and the notification.
Salary Details
Superintending Research Scientist (Grade C): Rs 80,000–2,20,000. Senior Officer (Mechanical) (Grade B): Rs 60,000–1,80,000. Senior Officer (Petroleum) (Grade B): Rs 60,000–1,80,000. The job location is primarily Field Headquarters, Duliajan, Assam, and the posts are transferable.
Selection Process
Selection is through a Computer Based Test (CBT), followed by a post-wise Personal Interview or Proficiency/Skill Test, as applicable. The CBT is tentatively scheduled for 28 December 2026.
How to Apply
- Read the official notification carefully and confirm that you meet the post-wise qualification, experience and age conditions as on 14 November 2026.
- Open the official Oil India online application portal through the Apply Online link below.
- Register with your correct name, date of birth, mobile number and email address, and note the User ID and password sent to you.
- Log in, fill in the application form, and enter your educational qualifications, experience, category and other required details accurately.
- Upload your photograph, signature and supporting documents in the prescribed format and size.
- Pay the applicable fee, if required, through the online payment gateway, review the form, and submit it before 14 November 2026, 11:00 AM.
- Download or print the final submitted application for future reference.
Related posts: BEL Probationary Engineer Recruitment 2026 — 350 Posts, ECR RDSO Senior Section Engineer S&T Recruitment 2026 — 11 Posts, and more in the Diploma/Engineering Jobs section.
Important Links
| Apply Online | Click Here |
| Official Notification | Click Here |
| Official Website | Click Here |
| Join WhatsApp Channel | Click Here |
| Join Telegram Channel | Click Here |
FAQs
Q1. How many technical posts are covered in this Oil India post?
23 technical posts: Superintending Research Scientist 5, Senior Officer (Mechanical) 14 and Senior Officer (Petroleum) 4. The full advertisement has 32 posts, including 9 non-technical posts not covered here.
Q2. What is the last date to apply online?
14 November 2026, 11:00 AM.
Q3. What is the application fee?
Rs 500 plus applicable taxes for General/OBC-NCL candidates; SC/ST/EWS and other exempted categories pay Nil.
Q4. What is the selection process?
A Computer Based Test, followed by a post-wise Personal Interview or Proficiency/Skill Test. The CBT is tentatively scheduled for 28 December 2026.
Q5. Where will selected candidates be posted?
Primarily at Field Headquarters, Duliajan, Assam, and the posts are transferable.