Principal Reservoir Engineer

Oman Shell; Maskat; On-site; OMR 30,760 - 46,140; Full time

Job summary

Oman Shell is seeking a seasoned petroleum engineer with over 20 years of experience in reservoir engineering, especially in tight gas reservoirs. The role involves providing expert knowledge on reservoir characterization, defining technical workflows, and assuring compliance with safety standards.

Your contributions will directly influence asset development strategies and portfolio management while fostering a culture of technical excellence and continuous improvement.

The ideal candidate holds a degree in Petroleum Engineering with certified expertise in reservoir engineering.

Qualifications

• 20+ years of experience in reservoir engineering.
• Demonstrated expertise in tight gas / unconventional reservoirs.
• Certified Reservoir Engineering TA2 (mandatory).

Responsibilities

• Provide expert guidance on reservoir characterization, stimulation, and production forecasting.
• Lead integration across subsurface, wells, facilities, and operations.
• Ensure compliance with safety standards and Life-Saving Rules.

Skills

Reservoir performance evaluation and forecasting

Resource estimation and reserves reporting

Reservoir simulation modelling

Production forecasting

Education

Degree in Petroleum Engineering or related discipline (Master’s preferred)

Job description

Job Family Group: Petroleum Engineering; Worker Type: Regular; Posting Start Date: June 15, 2026; Business Unit: Upstream; Experience Level: Experienced Professionals.

Key Accountabilities

• Serve as tight gas SME, providing expert guidance on reservoir characterization, stimulation, and production forecasting.
• Act as Technical Authority (TA2) for reservoir engineering, ensuring adherence to Shell standards and technical integrity.
• Define and deploy fit‑for‑purpose workflows, tools, and best practices across assets.
• Provide expert input into well design, fracture diagnostics, and production surveillance.
• Drive technology deployment and innovation, leveraging global learnings.
• Define and assure Well & Reservoir Management and surveillance and data acquisition requirements to support development and safe operations.

Reservoir Engineering Delivery & Assurance

• Hydrocarbon resource estimation, classification, and reporting in line with corporate and regulatory standards.
• Integrated production and injection forecasts with clear uncertainty ranges.
• High‑quality reservoir simulation modelling and analytical evaluations.
• Ensure calibration of models and volumes to actual field performance.
• Deliver robust formation pressure predictions, pore pressure management, and reservoir risk assessments.
• Ensure technical quality through formal peer reviews, assurance processes, and compliance with standards.

HSSE & Risk Management

• Accountable for HSSE‑critical reservoir engineering activities (pore pressure prediction, H₂S prediction, and associated risk management).
• Ensure compliance with safety standards and Life‑Saving Rules.

Strategic Planning & Portfolio Stewardship

• Contribute to and influence asset development strategies and long‑term portfolio plans.
• Support decision‑making and investment cases with robust technical inputs.
• Align subsurface outcomes with portfolio value delivery and business objectives.
• Support JV governance and stakeholder engagements.
• Support portfolio growth opportunities in oil and gas assets under Shell Oman Integration.

Integration & Stakeholder Management

• Lead integration across subsurface, wells, facilities, and operations.
• Act as a key interface with JV partners, regulators, and internal technical authorities.
• Build strong alignment between asset teams and corporate functions.

Leadership & Capability Development

• Lead, coach, and develop reservoir engineering talent and tight gas capability.
• Provide guidance on competency development, succession planning, and resource deployment.
• Foster a culture of technical excellence, assurance, and continuous improvement.
• Promote knowledge sharing and external engagement.

Skills & Competencies

• Strong reservoir engineering skills with mastery‑level competencies in reservoir performance evaluation and forecasting (tight gas and conventional).
• Resource estimation and reserves reporting.
• Reservoir simulation modelling and uncertainty management.
• Evaluation and management of key subsurface uncertainties.
• Reservoir HSE critical activities such as managing pore pressure and H₂S prediction.
• Production forecasting with uncertainty ranges for all fluids.

Experience & Qualifications

• Degree in Petroleum Engineering or related discipline (Master’s preferred).
• 20+ years experience in reservoir engineering.
• Demonstrated expertise in tight gas / unconventional reservoirs.
• Experience in JV environments and complex asset portfolios.
• Certified Reservoir Engineering TA2 (mandatory).

Shell is an Equal Opportunity Employer.