May 31, 2020

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Tracey Gardiner succeeds Cary Knuth as vice president of Chevron Base Oils
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Tracey Gardiner, photo courtesy of

Chevron Products Company, a division of Chevron U.S.A Inc., announced that Tracey Gardiner, formerly downstream digital advisor in the Digital Innovation & Acceleration Office, has succeeded Cary Knuth as vice president, Base Oils on 1 January 2019.

Gardiner is excited to be leading Chevron Base Oils in a time of dynamic change and opportunity. “Tightening specifications have increased the complexity of base oil supply and formulating economics for most of our customers.

“I am excited to be part of the Chevron team providing quality products and supply reliability to deliver great value to our customers,” she said.

Gardiner has been at the forefront of implementing and using technology to improve business processes for Chevron and its customers. Her vision and background make her uniquely qualified to lead the base oil business as Chevron focuses on reducing complexity and ensuring supply reliability for all of its customers.

Gardiner joined Chevron in 1996 in New Zealand as commercial development manager. In 2000 she relocated to Caltex’s global headquarters in Singapore working in research and planning, and marketing with responsibilities covering Asia, Africa, and Australasia. Since moving to Chevron’s global headquarters in San Ramon, California, U.S.A., in 2009 Tracey has been actively involved in marketing and developed a Business Technology Innovation organization. Most recently she was the downstream advisor for Chevron’s Digital Initiative.

Luyen Vo, formerly base oil sales manager for the Americas, is the new marketing and business development manager following Brent Lok’s impending retirement. Vo brings more than 15 years of base oil experience to her new role as manager, Base Oil Marketing and Business Development. Like her predecessor, Brent Lok, she has a strong background in refining technology. Her career with Chevron began in 2002 as a process engineer at the Richmond Lube Oil Plant (RLOP). Vo led catalyst designs for ISODEWAXING technologies globally and also led the commercial integration of Pascagoula’s production into Chevron’s global slate.

“I hope to bring my broad background in refining, technology, supply chain and sales to improve collaboration across our organization as we move towards optimizing and reducing complexity in our business.”

Lok will remain with Chevron, leading strategic projects, until his retirement in April 2019.

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