Exhibit 99.1 Plains All American Reports Fourth-Quarter and Full-Year 2025 Results Houston, TX – February 6, 2026 – Plains All American Pipeline, L.P. (Nasdaq: PAA) and Plains GP Holdings (Nasdaq: PAGP) today reported fourth-quarter and full-year 2025 results, announced 2026 guidance and provided the following highlights: Fourth Quarter and Full-Year 2025 Results 2026 Outlook and Key Highlights Financial Reporting Considerations for Pending Sale of Canadian NGL Business On June 17, 2025, we entered into a d ...