Principal Reservoir Engineer

About the role

, 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) - DISCLAIMER: Please note: We occasionally amend or withdraw Shell jobs and reserve the right to do so at any time, including prior to the advertised closing date. Before applying, you are advised to read our data protection policy. This policy describes the processing that may be associated with your personal data and informs you that your personal data may be transferred to Shell/Shell Group companies around the world. The Shell Group and its approved recruitment consultants will never ask you for a fee to process or consider your application for a career with Shell. Anyone who demands such a fee is not an authorised Shell representative and you are strongly advised to refuse any such demand. Shell is an Equal Opportunity Employer.

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