Senior Engineer- Hydrocarbon Accounting (HCA) & Metering

Job Purpose-

• Strategic focus: Prioritizing PPD initiatives and projects with fixed timelines and budget that can be offloaded from core personnel onto contractors to enable core personnel to focus on strategic and operational objectives.
• Service improvement: Timely and efficient delivery of specific PPD initiatives and projects with single point accountability.
• Cost optimization through in-house and on-the-job knowledge and skills transfer from the implemented initiatives and projects without depending on external vendors.
• Effective vendor and internal functional coordination based on expertise and focused collaboration with relevant stakeholders.

Key Responsibilities-

• Review existing HCA resources and systems within existing structure and recommend areas of improvement to meet industry standards and best practices.
• Review existing HCA processes and procedures with benchmarks from other ADNOC Opcos with similar operations and industry standards.
• Carry out Gap Analysis on HCA processes and procedures and present reports with specific areas of improvement to meet best practices in line with #1 and #2 above.
• Survey Shah Gas Plant and Shah Sulfur Plant metering and instrumentation systems and devices related to production and product export measurements, alongside

Plant Operations & Maintenance team.

• Perform Gap Analysis from #4 above and issue report with specific areas of improvement to meet regulatory and industry requirements and standards.
• Validate and reconcile production, consumption, and transfer data from metering systems, tank gauging, and flow computers.
• Ensure compliance with API, ISO, and company standards for measurement accuracy.
• Investigate and resolve discrepancies between physical and system quantities.
• Perform daily/monthly allocation of hydrocarbons to wells, fields, and stakeholders based on contractual agreements and allocation models.
• Maintain and update allocation methodologies in line with best practices and regulatory requirements.
• Support production planning and forecasting by providing accurate historical data.
• Prepare monthly hydrocarbon statements for internal stakeholders and joint venture partners.
• Perform variance analysis and supports decision-making related to Hydrocarbon Accounting and

production performance.

• Ensure compliance with fiscal metering and reporting obligations to government authorities.
• Support audits (internal, JV, regulatory) by providing transparent and traceable data.
• Administer Hydrocarbon Accounting (HCA) systems such as PHD, HEMS, Aspen AORA, TruPlant IP21.
• Validate system interfaces with SCADA, DCS, and Laboratory Information Management System (LIMS) for seamless data flow.
• Drive automation and digitalization initiatives for hydrocarbon accounting processes.
• Provide daily technical and systems support to validate implementation of the recommendations from the above work items during the contractual period.
• Develop HCA competency framework and training program/plan for ASG PPD team.
• Carry out initial HCA training program for PPD personnel on relevant technical and functional business processes, procedures, and systems developed in line with items #1–#5 above.
• Review historical audit reports by internal and external auditors related to HCA business processes and procedures and provide recommendations for timely close-out of outstanding action items from findings.
• Provide technical support in preparing documentation to close out outstanding audit findings.
• Support with technical input to implementation of existing and new ASG production planning and hydrocarbon accounting systems and other ASG PPD-related projects.
• Participate in management reviews of the periodic progress reports of the contractor services against

performance contract.

• Lead in the implement of AI agents for HCA models and databases.
• Support in PPD projects governance & project management and budgeting alignment
• Driving functionality enhancement initiatives of plant systems, enterprise application.
• Internal coordination in rollout of PPD initiatives and programs.
• Participates in the review of third-party software, ensure smooth implementation and deployment.
• Participate in the documentation including technical documentation, modifications PPD databases and file repository to be AI- compliant.
• Interpret Production Sharing Agreements (PSA), Offtake Agreements, and Sales Contracts for allocation and entitlement calculations.
• Provide input for invoicing and revenue recognition based on accurate hydrocarbon data.
• Develop and maintain Standard Operating Procedures (SOPs) for hydrocarbon accounting.
• Conduct training and mentoring for junior accountants and operations staff.
• Implement best practices for loss management, shrinkage analysis, and reconciliation.
• Assist users in the interpretation of the application operational activities, including answering queries and training user personnel on the use of the system.

Experience- More than 15 years of relevant experience.

Technical Competencies-

• PIn-depth knowledge of metering principles, custody transfer standards, and hydrocarbon measurement.
• Proficiency in mass balance, allocation models, fiscal regimes, and contractual frameworks.
• Hands-on experience with HCA software (e.g., Energy Components, SAP IS-Oil).
• Strong analytical skills for discrepancy resolution and trend analysis.
• Understanding of regulatory compliance and audit requirements.

Working Schedule

• ADNOC normal working hours with weekends and holidays.
• The project duration is 3 years, with an optional extension of an additional 2 years.