Principal Reservoir Engineer

, Oman
Job Family Group:

Petroleum Engineering
Worker Type:

Regular
Posting Start Date:

June 15, 2026
Business Unit:

Upstream
Experience Level:

Experienced Professionals
Job Description:

This role involves developing, directing, and applying advanced technical expertise in petrophysics to support the design, implementation, and optimization of reservoir evaluation processes.

As a Principal Reservoir Engineer, the position provides strategic leadership and technical authority in ensuring that products, technologies, and workflows meet defined performance standards and operational objectives.

Key Accountabilities:

• Technical Authority – Reservoir Engineering & Tight Gas :

• 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, i.e.

• 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 the Portfolio Growth opportunities in Oil and Gas assets under the ambit of Shell Oman

• 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 demonstratable expertise to Mastery level competencies in :

• Reservoir performance evaluation and forecasting with reference to tight gas and conventional oil and gas development related to multiple recovery mechanisms.

• Resource estimation and reserves reporting

• Reservoir Simulation Modelling and Uncertainty Management

• Evaluate/manage impact of key subsurface uncertainties

• Reservoir Engineering HSE Critical activities such as Managing Pore Pressure and H2S prediction

• Production Forecasting: generating production (and injection) forecasts for all fluids produced and injected with uncertainty ranges, using the appropriate tools and techniques

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)

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