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Valero Announces Promotion of Gary K. Simmons to Chief Operating Officer

Valero Energy Corporation (NYSE: VLO, “Valero”) announced today that Gary K. Simmons, Valero’s Executive Vice President and Chief Commercial Officer, has been promoted and elected by the Board of Directors as Executive Vice President and Chief Operating Officer of Valero, effective July 20, 2023.

Gary has led Valero’s commercial organization since 2014 and has served as Executive Vice President and Chief Commercial Officer since January 2020. In his new role as Executive Vice President and Chief Operating Officer, Gary will also have oversight responsibility for all refining operations.

“Gary has done a great job during his long tenure with Valero,” said Lane Riggs, Valero’s Chief Executive Officer, President and member of the Board. “I look forward to continuing to work with him and our team in advancing our strategy of pursuing excellence in operations, maintaining discipline on returns and honoring our commitments to stockholders.”

About Valero

Valero Energy Corporation, through its subsidiaries (collectively, “Valero”), is a multinational manufacturer and marketer of petroleum-based and low-carbon liquid transportation fuels and petrochemical products, and sells its products primarily in the United States (“U.S.”), Canada, the United Kingdom (“U.K.”), Ireland and Latin America. Valero owns 15 petroleum refineries located in the U.S., Canada and the U.K. with a combined throughput capacity of approximately 3.2 million barrels per day. Valero is a joint venture member in Diamond Green Diesel Holdings LLC, which owns two renewable diesel plants located in the U.S. Gulf Coast region with a combined production capacity of approximately 1.2 billion gallons per year, and Valero owns 12 ethanol plants located in the U.S. Mid-Continent region with a combined production capacity of approximately 1.6 billion gallons per year. Valero manages its operations through its Refining, Renewable Diesel, and Ethanol segments. Please visit for more information.



Homer Bhullar, Vice President – Investor Relations and Finance, 210-345-1982

Eric Herbort, Director – Investor Relations and Finance, 210-345-3331

Gautam Srivastava, Director – Investor Relations, 210-345-3992


Lillian Riojas, Executive Director – Media Relations and Communications, 210-345-5002

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