Oil India Executive Cadre Recruitment 2026

Oil India Limited (OIL) is recruiting for 33 regular executive cadre positions across Grades A, B and C. Applicants with the specified qualifications and experience for research, engineering, finance, official-language or secretarial work should review the requirements for their chosen post before applying.

Applications are accepted online from 15 October 2026 at 16:00 hours until 14 November 2026 at 11:00 hours. The selection process includes a Computer Based Test (CBT), followed by a Personal Interview for Grade B and C posts or a Proficiency Test/Skill Test for Grade A posts; provisionally selected candidates must also clear a pre-employment medical examination.

Important Dates

Vacancy Details

OIL has announced 33 vacancies across six posts. The number of positions is provisional and may change according to the Company’s requirements. The notification also states that one vacancy among the notified posts is reserved for PwBD candidates in Grade B.

Eligibility Criteria

Educational Qualification

Qualifications and experience are specific to each post. The stated qualification and relevant work experience must be held by the cut-off date of 14 November 2026.

• Superintending Research Scientist [CH-01]: PhD in Chemistry with an MSc in Chemistry of at least two years’ duration and 60% marks; or a PhD in Geology with a Master’s degree in Geology/Applied Geology of at least two years’ duration and 60% marks; or a PhD in Chemical Engineering with a Master’s degree in Chemical Engineering of at least two years’ duration and 60% marks; or a PhD in Petroleum Engineering with a Master’s degree in Petroleum Engineering of at least two years’ duration and 60% marks. A minimum of four years of relevant post-qualification work experience is also required.
• Senior Officer (Mechanical) [ME-02]: A minimum four-year Bachelor’s degree in Mechanical Engineering with at least 65% marks. Degrees in Automation, Automobile, Industrial, Power, Manufacturing, Production, Mechatronics, Mining, Marine or Robotics Engineering, among other listed disciplines, are excluded.
• Senior Officer (Petroleum) [PE-03]: A Master’s degree in Petroleum Engineering/Technology of at least two years’ duration with at least 60% marks, along with Engineering at graduation level.
• Senior Internal Auditor [AC-04]: Associate membership of ICAI or ICMAI.
• Hindi Officer (Official Language) [HO-05]: A postgraduate degree in Hindi and at least three years of relevant post-qualification work experience.
• Confidential Secretary [CS-06]: Graduation plus a one- or two-year diploma in Secretarial Practice, Modern Office Management/Secretarial Practice, Executive Assistant Diploma or an equivalent qualification. Knowledge of computer applications and at least two years of post-qualification experience are required.

Age Limit

The age limits below are upper limits in years and are assessed on 14 November 2026. The applicable limit depends on the post and category; a dash means that no limit for that category is listed in the post-wise age table.

Age relaxations include five years for candidates domiciled in Jammu and Kashmir during 1 January 1980 to 31 December 1989, five years for Ex-Servicemen, and relaxation for PwBD candidates as per Government directives. Candidates with a PhD in the relevant discipline receive three years’ relaxation for posts under Tables II and III of the notification. The upper age limit for OIL internal candidates is 54 years, and the maximum age after all applicable relaxations cannot exceed 54 years.

Application Fee

The fee is paid online through the SBI e-Pay Lite Payment Gateway, where applicable. Once paid, the application fee is non-refundable, so candidates should check their eligibility before making payment.

How to Apply

Applications must be submitted through OIL’s online recruitment portal by the stated deadline. Keep the supporting documents and scanned files ready before starting the form.

1. Visit the Oil India Limited website and open the recruitment information for this notification, or use the online application portal.
2. Select the registration link and register using a valid email address and mobile number.
3. Sign in with the credentials created during registration.
4. Complete the personal, additional, communication, qualification and experience details, and the declaration.
5. Upload a recent colour passport-size photograph, taken within the last three months, and a scanned signature in JPG/JPEG format.
6. Pay the applicable fee online through SBI e-Pay Lite. Candidates in fee-exempt categories do not pay an application fee.
7. Review the information entered, submit the application and save or print a copy for future reference.

Applicants should have a valid email address and mobile number, a photograph and signature, and the relevant certificates available. These include the Class 10 admit card/pass certificate/marksheet for date of birth; degree or diploma certificates and marksheets; relevant post-qualification experience certificates; prescribed SC/ST/OBC-NCL/EWS certificates; a valid disability certificate for PwBD candidates; an Ex-Servicemen discharge certificate/book where applicable; and an employer’s NOC where applicable.

Salary & Pay Scale

Selected candidates will be placed on the following grade pay scales. The scales include a 3% increment component as stated in the notification.

Approximate gross monthly emoluments at the minimum of the scale are 150000 for Grade C, 120000 for Grade B and 90000 for Grade A. Benefits include industrial-pattern dearness allowance, HRA or company-leased/self-lease accommodation, medical benefits for the employee and dependants, gratuity, PF, house-building and vehicle loans, and group insurance. Post-Retirement Medical Benefits under the Defined Contributory Scheme are available to employees who retire from OIL after at least 20 years of continuous service.

Provisionally selected Grade B candidates are appointed under the Scheme for Induction Level Engineers/Officers on Probation and serve a one-year probation. Grade B candidates must also execute a bond to serve OIL for a minimum of three years from joining; the notification exempts post code AC-04 from the service bond.

Role Responsibilities

• Superintending Research Scientist: Conduct research, analytical and experimental work and technology development; design, run, monitor and evaluate research projects; manage laboratory, pilot-plant and testing facilities; prepare technical reports, SOPs, project documents, publications and patents; follow HSE, statutory and GLP requirements; and coordinate multidisciplinary R&D, field trials and external collaborations.
• Hindi Officer (Official Language): Implement and promote Official Language (Rajbhasha) policies, translate documents and communications between Hindi and English, monitor and report on implementation, and prepare or vet bilingual documents, terminology and correspondence.
• Confidential Secretary: Manage confidential correspondence, schedule and coordinate meetings, handle office documentation, liaise with internal and external stakeholders, support senior executives and use shorthand and transcription skills.

Selection Process

The CBT is an online test of objective questions carrying 100 marks, with a duration of one hour and 30 minutes. It covers General/Financial Awareness, General English, Reasoning Ability and Computer Aptitude, and Quantitative Aptitude, with 25 questions and 25 marks for each subject. Compensatory time is allowed for Persons with Benchmark Disabilities in accordance with Government guidelines.

For Grade B and Grade C posts, the process is a CBT followed by a Personal Interview. The CBT carries 85% of the final score and the interview carries 15%; the final score is calculated as (CBT marks out of 100 × 0.85) + interview marks out of 15. Candidates qualifying in the CBT are called for interview in a 1:5 ratio. The stated CBT qualifying marks are 50 out of 100 for UR posts and posts reserved for OBC-NCL and EWS, and 40 out of 100 for posts reserved for SC, ST and PwBD candidates.

For Grade A posts, the CBT is followed by a Proficiency Test/Skill Test. Candidates qualifying in the CBT are shortlisted for that test in a 1:2 ratio. The skill or proficiency test is qualifying only, carries no weight in the final score, and requires 50 out of 100 to qualify. The final merit list is based solely on CBT marks for candidates who pass the test. The notification states a CBT qualifying score of 50 out of 100 for UR and OBC-NCL posts.

Appointment is conditional on passing a Pre-Employment Medical Examination (PEME). The examination may be conducted at OIL Hospital, Duliajan, Assam, by a Government Medical Officer not below the rank of Civil Surgeon, or by an authorised medical officer at a company-empanelled hospital. Candidates must meet the physical fitness standards published on OIL’s website.

Selected candidates may be posted at any OIL operational area or office according to Company requirements. Although projected vacancies are primarily for Field Headquarters at Duliajan, Assam, OIL may assign candidates elsewhere.

Eligible candidates should check the detailed notification and submit their online application, including the required documents and any applicable fee, before 11:00 hours on 14 November 2026.