Environment

Marathon is committed to environmental protection and places significant emphasis and resources on minimizing wastes, emissions and releases through our operations. Environmental performance indicators are a key part of Marathon’s corporate and operational performance commitments with targets designed to drive continual improvement.

Spills and Discharges

Upstream and Downstream use a variety of environmental performance metrics based on their operations. Oil spills are a principal measure of environmental performance. Since Upstream handles significant volumes of produced water (water brought to the surface during crude oil and natural gas production), it also tracks total fluid spill volumes. Downstream uses an internal metric, Designated Environmental Incidents (DEI), to track environmental events that are reportable to U.S. federal or state government agencies.  

Wastes and Residual Materials

Marathon complies with all waste regulations throughout its worldwide operations and has programs to reduce the volumes of hazardous and nonhazardous materials it generates.

Emissions

Marathon is committed to reducing all types of air emissions from its operations. The Company evaluates operations periodically to identify process improvements and technology solutions to minimize air emissions.