ENVIRONMENTAL, SOCIAL AND GOVERNANCE REPORT • 27 SAFETY COMMUNITY PEOPLE GOVERNANCE ENVIRONMENT REPURPOSING OF MATERIAL RECOVERED FROM TANK CLEANING Recovered material is inserted back into the refining process to create fuels and other products. Alternatively, the recovered material is also used to fuel third-party facilities, avoiding landfill waste. RECYCLING EXHAUST GASES TO REDUCE ENERGY CONSUMPTION Installed at six of our refineries, expanders are designed to convert kinetic energy into electricity by reusing exhaust gases to spin turbines. WASTEWATER MANAGEMENT Process water and stormwater are managed at wastewater treatment plants. We use naturally occurring bacteria to digest oil and treat wastewater streams to purify the water before returning to the ecosystem. WATER RECYCLING With innovative approaches, we use each gallon of water more than 17 times prior to evaporation or return to the environment. ENERGY EFFICIENCY INITIATIVES We are focused on improving process monitoring and control systems to reduce energy consumption, which in turn reduces costs and carbon emissions. HEAT TRANSFER Heat integration technology is used in our refineries to pair high temperature streams that require cooling with lower temperature streams that require heating to facilitate heat transfer and reduce energy consumption.