OIL Multi-Post Recruitment 2026

OIL Multi-Post Recruitment 2026: Overview

Oil India Limited (OIL), a Maharatna public sector company, is recruiting for regular executive positions in chemistry, reservoir engineering and economics. The expected work base is Field Headquarters, Duliajan, Assam, although the company can assign you to other operational areas or offices. The notice brings together field operations and investment planning, with a separate professional focus for each role.

Posts and Disciplines

• Deputy Chief Chemist: work connected with drilling and workover fluids, chemical operations and wellsite support.
• Deputy Chief Engineer (Reservoir): reservoir evaluation, hydrocarbon resources and field development planning.
• Economist: economic analysis, investment assessment and business opportunities in India and overseas.

Post-wise Duties

Deputy Chief Chemist

You will help keep drilling and workover fluids ready for field use, check their properties and manage chemical quality. The work also covers wellsite supplies, equipment calibration and chemical stocks. You will support critical well operations while keeping safety, regulatory compliance and fluid reuse in view.

Deputy Chief Engineer (Reservoir)

You will combine geological, production and other field data to build a clearer picture of reservoir performance. The role includes estimating reserves, using simulation models and supporting decisions about well placement and recovery methods. Your analysis will help teams compare development plans and identify where wells need attention.

Economist

You will assess new business and investment opportunities, including existing ventures and possible exits. The work connects economic trends, policy developments and project analysis with management decisions. You will also help examine commercial risks, coordinate with stakeholders and prepare reports for company leadership.

Service Conditions and Caveats

• Posting flexibility: Duliajan is the main location currently envisaged. You may be posted or transferred to another OIL operational area or office according to company needs.
• Probation: You will serve a one-year probation period. Confirmation follows successful completion and must be issued in writing.
• Recruitment scope: The advertised openings are provisional. OIL can change the recruitment scope or cancel the exercise according to its requirements.
• Application accuracy: Your submitted details are treated as final. Incorrect information or false records can lead to cancellation, including after joining.
• Travel arrangements: Interview travel reimbursement follows the grade-specific rules in the notice. You must arrange your own lodging and meals, and the company will not provide storage for belongings.
• Communication: Keep your registered email address and mobile number active throughout recruitment. OIL uses these details to contact you and does not allow changes to them during the process.
• Multiple applications: If you apply more than once for the same post, OIL considers the latest application. Separate applications are needed when you seek consideration for different posts.

• Test drilling and workover fluids and monitor their quality for the Chemist role.
• Manage wellsite chemical stocks, equipment and safety records.
• Analyse reservoir data and estimate hydrocarbon reserves for the Reservoir Engineer role.
• Build reservoir simulation models and support field development decisions.
• Assess investment opportunities and economic trends for the Economist role.
• Prepare technical reports, business proposals and management presentations relevant to the assigned post.