OIL Multi-Post Recruitment 2026 — 32 Vacancies

OIL Multi-Post Recruitment 2026: Overview

Oil India Limited (OIL), a Maharatna public sector undertaking, is recruiting executives across research, engineering, finance, official language and secretarial functions. These are Grade A, B and C appointments under a shared advertisement, with different requirements for each role. The projected openings are mainly for Field Headquarters at Duliajan, Assam, although OIL can post you at another office or operational area.

Posts and Disciplines

• Superintending Research Scientist: A Grade C role connected with scientific research, engineering and technology development in energy-related domains.
• Senior Officer, Mechanical: A Grade B opening in the mechanical engineering stream.
• Senior Officer, Petroleum: A separate Grade B route for the petroleum engineering and technology stream.
• Senior Accounts Officer / Senior Internal Auditor: A combined Grade B recruitment entry covering the finance and audit functions.
• Hindi Officer, Official Language: A Grade A role supporting OIL's Rajbhasha work and bilingual communication.
• Confidential Secretary: A Grade A secretarial role advertised against a backlog vacancy reserved for a person with benchmark disability.

Post-wise Duties

Superintending Research Scientist

You will carry out research and technology development, from laboratory work to pilot studies and field validation. The work includes planning research projects, checking results, managing testing facilities and preparing technical reports.

Hindi Officer

You will help implement Official Language policies, translate between Hindi and English, and prepare bilingual material. You will also track Rajbhasha activity, prepare reports and keep the related records.

Confidential Secretary

You will manage confidential correspondence, coordinate meetings and handle office documentation. The role also includes liaison with people inside and outside OIL and administrative support for senior executives.

Service Conditions and Caveats

• Probation: All selected candidates serve one year of probation. Confirmation is issued in writing after successful completion.
• Service bond: Grade B Mechanical and Petroleum officers must commit to at least three years of service from joining. The Senior Accounts Officer / Senior Internal Auditor post, code AC-04, is exempt from this bond.
• Posting: Duliajan is the main projected location, not a guaranteed permanent station. OIL can place or transfer you wherever its operational needs require.
• Travel: OIL does not reimburse travel for the CBT. For an interview or skill/proficiency test, admissible base AC-II train fare is reimbursable; the notice permits economy airfare for specified journeys within the Northeast and up to Kolkata, with travel evidence.
• Stay arrangements: You must arrange your own accommodation and meals when attending a recruitment stage. OIL does not provide storage for your belongings or documents.
• Application finality: Details become final once you submit the form. If duplicate applications reach OIL for a particular post, the application with the higher sequence number is considered, and fees cannot be transferred between applications.
• Recruitment changes: The company can revise the number of openings or change, restrict or cancel the process. An admit card does not mean OIL has finally accepted your candidature.
• Communication: Keep your registered email address and mobile number active throughout recruitment. OIL will publish further announcements on its own website.

• Conduct laboratory, pilot-scale and field research as Superintending Research Scientist.
• Plan research projects, analyse results and prepare technical reports for the Scientist role.
• Manage research equipment, testing facilities and technical records in the Scientist role.
• Implement Official Language policies and translate Hindi-English material as Hindi Officer.
• Prepare bilingual correspondence and track Rajbhasha activities as Hindi Officer.
• Handle confidential correspondence, meetings, documentation and executive support as Confidential Secretary.