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Operations Integrity Management System

ExxonMobil's policies on safety, health, the environment, and product safety reflect our commitment to highest operational standards and performance. We employ a disciplined, systematic approach that we call OIMS - our Operations Integrity Management System. ExxonMobil developed this system to provide a robust framework for managing safety, security, health and environmental risks. It is used in our facilities worldwide and enables us to measure progress and ensure management accountability for results in these areas.

We are pleased that the independent assessors Lloyd's Register Quality Assurance has recognised OIMS as meeting all requirements of the International Organisation for Standardisation's standard for environmental management systems - ISO 14001.

How does OIMS work?

The OIMS process requires continuous evaluation and improvement of management systems and standards as well as the involvement of every employee. It has established a common language for discussion and sharing of successful systems and practices among different parts of ExxonMobil's business.

The OIMS framework has 11 elements, each with clearly defined expectations, that every operation must fulfill. Management systems put into place to meet OIMS expectations must show documented evidence of the following five characteristics:

  • The scope must be clear and the objectives must fully define the purpose and expected results;
  • Well-qualified people are accountable to execute the system;
  • Documented procedures are in place to ensure the system functions properly;
  • Results are measured and verified that the intent of the system is fulfilled; and
  • Performance feedback from verification and measurement drives continuous improvement of the system.

OIMS requires each operating unit to be assessed by experienced employee teams from outside that particular unit approximately every three years. Self assessments are required in the other years.

OIMS elements in action

1. Management, leadership, commitment and accountability.
Employees at all levels are held accountable for safety, health and environmental performance.

2. Risk assessment and management.
Systematic reviews evaluate risks to help prevent accidents from happening.

3. Facilities design and construction.
All construction projects from small improvements to major new expansions are evaluated early in their design for safety, health and environmental impact.

4. Information and documentation.
Information that is accurate, complete and accessible is essential to safe and reliable operations.

5. Personnel and training.
Meeting high standards of performance requires that employees are well trained.

6. Operations and maintenance.
Operations and maintenance procedures are frequently assessed and modified to improve safety and environmental performance.

7. Management of change.
Any change in procedure is tested for safety, health and environmental impact.

8. Third-party services.
Contractors are important to safe operations.

9. Incident investigation and analysis.
Any incident, including a "near miss," is investigated.

10. Community awareness and emergency preparedness.
Good preparation can significantly reduce the impact of an accident.

11. Operations integrity assessment and improvement.
A process that measures performance relative to expectations is essential to improved operations integrity.

For a more detailed explanation of how these elements work in practice, see our publication Operations Integrity Management System.