COMMUNITY AWARENESS ABOUT PIPELINES Our Midstream operations are responsible for pipelines across 17 states and over 230 counties. Our pipeline operators have year-round community awareness, education and listening panels to stay in touch with people who are involved with and affected by our extensive pipeline network. 811: Call Before You Dig! Phillips 66 operates about 12,800 miles of U.S. pipeline systems, and the safety of the people who live and work nearby is a priority. U.S. government and oil industry statistics show that the most common cause of pipeline incidents is improper or unauthorized digging. If someone puts a shovel or heavy machinery in the ground without knowing there's a pipeline buried beneath, they can cause serious damage. That's why our pipeline operations business maintains an 811 call center, and it has handled more than 1.6 million calls since 2012. Phillips 66 also offers specialized programs for farmers, ranchers, emergency officials and schools. In 2020, we began collecting real-time data via the Phillips 66 Damage Information Reporting Tool, known as DIRT, and discovered a high number of unauthorized excavations in specific locations. Because of the potential danger, we launched a media geofencing campaign. TRUCKERS AGAINST TRAFFICKING Phillips 66 is a platinum sponsor of Truckers Against Trafficking, an organization that educates truck drivers on how to spot potential human trafficking and what to do. In 2021, we launched computer-based training to teach field employees to notice and report the signs of potential human trafficking. REACHING OUT TO OUR REFINERY COMMUNITIES Our Refining operations have well-established Community Advisory Councils or Panels (CACs or CAPs) that represent a cooperative and empowering environment for collaboration in the community. CACs and CAPs include company representatives and community members who meet regularly. Leaders from Refining and, in some instances, Midstream and Lubricants operations provide feedback on performance and share insights on plans and activities. The Wood River CAP also serves our Midstream and Marketing and Specialties operations in the area. The Billings CAC covers the Refining and Midstream operations there. CACs and CAPs are also communication channels for safety issues, feedback and grievances. Leaders are focused on their communities and breaking down communication barriers, taking into account members' preferences to respond to community needs. Discussions such as these help us plan for the next five to 10 years and ensure that we keep our communities top of mind. We identified and geofenced home improvement stores, landscapers and nurseries, heavy equipment sales and rental stores, planning and zoning buildings, and road department and public works buildings close to our pipelines. When someone entered geofenced locations, their phones, laptops and tablets received Phillips 66 and 811 Call Before You Dig ads linked to stakeholder-specific portions of the pipeline safety website. The program was a success. In 2021, we implemented geofencing campaigns near the U.S. pipelines that saw the most excavation activity. The campaigns generated over 4 million impressions, increased the traffic to our pipeline safety website by an average of 160% year over year and introduced more than 20,000 new users to our site. We also initiated additional audience-specific e-campaigns during Safe Digging Month, enhanced our school outreach programs to increase pipeline safety awareness and emergency preparedness, and shared access to our response action plans for local emergency responders. We're also spreading the word with a 28-foot tall by 95-foot long 811 message on a highway-adjacent storage tank at our Pasadena Terminal in Texas and through our road transport subsidiary, Sentinel Transportation. We put 811 decals on the Sentinel tankers, and because the fleet travels 24 million miles a year, millions of people see the message. 57 STAKEHOLDER ENGAGEMENT

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