# Mark Lashier

> Mark E. Lashier is the Houston-based chairman and CEO of Phillips 66, a chemical engineer with 13 U.S. patents. He began at Phillips Petroleum in 1989, led Chevron Phillips Chemical from 2017 to 2021 and became Phillips 66 CEO in July 2022. His career spans research, plant operations, international assignments and corporate leadership.

- **Role:** Chairman and Chief Executive Officer at Phillips 66
- **Organizations:** Phillips 66, Chevron Phillips Chemical Company, Phillips Petroleum Company, Motorola Solutions, American Petroleum Institute, American Fuel and Petrochemical Manufacturers, Greater Houston Partnership, Iowa State University College of Engineering Industrial Advisory Council, Junior Achievement of Southeast Texas, Barbara Bush Houston Literacy Foundation, Business Roundtable, Business Council, National Petroleum Council
- **Nationality:** American
- **Education:** B.S., Chemical Engineering, Iowa State University, Ph.D., Chemical Engineering, Iowa State University
- **Known for:** Holds 13 U.S. patents, as reported by Phillips 66 and Rice University., Helped optimize a catalyst and develop and commercialize its production process early in his career., Received Iowa State University College of Engineering’s Professional Achievement Citation in Engineering in 2013.

## Career timeline

- **1989** — Joined Phillips Petroleum as an associate research engineer in Bartlesville, Oklahoma.
- **1994** — Became a senior production engineer at the Sweeny Petrochemical Complex in Old Ocean, Texas.
- **1996** — Moved into commercial development in Bartlesville.
- **1997** — Named olefins manager in chemicals and plastics.
- **2000** — Became Asia region general manager at the newly formed Chevron Phillips Chemical joint venture, based in Singapore.
- **2017** — Became president and CEO of Chevron Phillips Chemical on August 1.
- **2021** — Became president and COO of Phillips 66 on April 1.
- **2022** — Became president and CEO of Phillips 66 on July 1, succeeding Greg Garland.
- **2024** — Added the chairmanship of Phillips 66.

## Achievements

- Holds 13 U.S. patents, as reported by Phillips 66 and Rice University.
- Helped optimize a catalyst and develop and commercialize its production process early in his career.
- Received Iowa State University College of Engineering’s Professional Achievement Citation in Engineering in 2013.
- Led Chevron Phillips Chemical as president and CEO from 2017 to 2021.

## Latest updates

- **2026-10** — On October 16, Phillips 66 announced a quarterly dividend increase to $1.33 per share; Lashier linked it to business resilience and shareholder returns.
- **2026-10** — Phillips 66 announced Chris Chandler as strategic advisor to the CEO effective October 6, ahead of taking over Refining on January 1, 2027.
- **2026-05** — Appeared on Houston Business Journal’s HBJ On the Record podcast to discuss market disruption, conventional and renewable fuels, logistics and his Iowa background.
- **2026-01** — Phillips 66 highlighted his At Barron’s interview with Andy Serwer on energy markets and company strategy.
- **2025-09** — Spoke at Rice University’s Engineers in the C-Suite event on September 15.

## Links

- Website: https://investor.phillips66.com/corporate-governance/person-details/default.aspx?ItemId=ffb76783-53a4-4a75-aedb-e527b27622fa
- LinkedIn: https://www.linkedin.com/in/mark-lashier-8a86a34

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Profile page: https://yespress.io/mark-lashier
Published by YesPress — https://yespress.io
Last updated: 2026-10-21