Process Safety

Marathon applies process safety management for hazards associated with using highly hazardous chemicals in its facilities worldwide. In the U.S., eight Downstream and two Upstream facilities are subject to OSHA's standard for Process Safety Management of Highly Hazardous Chemicals.

Upstream also operates government-regulated international facilities that follow process safety management elements. Marathon manages its unregulated facilities, including those in Africa, using process safety principles. Marathon takes an integrated team approach to continually improve process safety globally. The strengths of the Company's worldwide process safety program are its risk management programs, compliance audits, safety culture and use of structured management systems.

In 2007, the Company will continue to improve its focus on process safety management by initiating annual internal process safety inspections at regulated facilities, redefining corporate oversight for process safety programs and establishing corporate metrics for performance.