STOP-WORK AUTHORITY Two principles that guide all employees and contractors working within our facilities are taking the time to work safely and having the right to speak up and stop work if a safety concern is identified. Everyone working at or visiting our sites is empowered — and required — to stop any work they believe poses a risk to themselves, the people around them or the environment. We train our workforce to "stop when unsure." No employee or contractor will ever experience negative repercussions for using their stop-work authority in good faith, even if it turns out that there wasn’t a hazard; in fact, employees and contractors who speak up when they spot a potential problem are rewarded through the company’s Good Catch program. It’s another way we hold ourselves accountable for everyone’s safety every day. SAFETY MEETINGS, SUMMITS AND TRAINING Each of our sites conducts a monthly safety committee meeting. Employees, managers and union representatives review goals and safety practices. They also audit results and work together to keep an open dialogue focused on continuous improvement. In addition to providing continuing education opportunities, these meetings enable knowledge- sharing from experts such as industrial hygienists, safety specialists and process safety representatives. We have more frequent meetings within our field staff groups and perform job safety analyses for each field job. We periodically host large-scale company training summits. This is an opportunity to gather people from every health and safety committee in the company to share best practices, goals and performance milestones. In addition, attendees gain new techniques, skills and knowledge they can implement at their home facility. The summits also encourage union leaders and Phillips 66 management to maintain an open dialogue and speak with a unified voice about safety. We also hold periodic contractor safety summits with all our major contracting companies to set expectations and goals, share best practices, and keep lines of communication open. Each Midstream Region holds a regional contractor summit with its primary and secondary contractors. In 2021, in compliance with COVID-19 restrictions, we held a virtual summit with select primary contractors and contractor mentors. AUDITS AND INSPECTIONS Our facilities are subject to rigorous internal, industry and external audits and inspections, and our operations are managed to ensure compliance and asset integrity. There are hundreds of audits each year across our operations. External auditing agencies include OSHA and the U.K. Health and Safety Executive, the EPA and U.K. Environmental Agency, U.S. Coast Guard, Pipeline and Hazardous Materials Safety Administration and the Chemical Safety Board. HSE audits are on a predetermined cycle that covers all operations. Additionally, refinery operating excellence audits, insurance risk assessments, trade association assessments and third-party safety audits happen each year. Audits are documented and include a process for communicating results to management and provisions for periodic review and corrective actions. HSE performance is verified through robust assurance processes that involve corporate staff and business unit employees. Each business unit establishes and maintains auditing processes to assess the adequacy and effectiveness of HSE controls and compliance with legal requirements and standards of operation. Joint ventures, partnerships and contractors are all included in the auditing process. We are also involved in numerous industry improvement and standard-setting committees of American Petroleum Institute (API), American Fuel & Petrochemical Manufacturers (AFPM) and the Association of Oil Pipe Lines. Our facilities follow industry-leading quality management systems, and many are certified to international standards. These efforts have made our sector, and specifically Phillips 66, a safety leader among U.S. industries. Through our occupational health and industrial hygiene program, we evaluate our workplaces for health hazards to ensure that we protect everyone at our facilities. Employees and contractors report both actual incidents and near misses that have or could have resulted in injury, property damage or environmental impact. We learn from these situations, identifying and removing the root causes to reduce the risk of recurrence. 23 ENVIRONMENT AND SAFETY