Chevron is reshuffling its top leadership team, moving Chief Financial Officer Eimear Bonner into a major operational role overseeing the company's oil, products and gas business.
Chevron Moves CFO Into Key Oil and Gas Role
Chevron announced that Chief Financial Officer Eimear Bonner will become president of its Oil, Products & Gas business, effective January 1, 2027. In the new position, Bonner will oversee operations across Chevron's upstream, downstream and marketing businesses.
The move represents a significant shift for Bonner, who has led Chevron's financial strategy as CFO and will now take responsibility for one of the company's most important operating divisions.
Chevron is one of the world's largest integrated energy companies, with operations spanning oil and gas production, refining, fuel marketing and emerging energy projects.
- Eimear Bonner moves from CFO to president of Oil, Products & Gas.
- Jeff Gustavson will become Chevron's new CFO.
- Mark Nelson will remain vice chairman and focus on strategy and business development.
- The leadership changes take effect January 1, 2027.
Who Is Eimear Bonner?
Before becoming Chevron's finance chief, Bonner held several leadership positions across the company.
She previously served as Chevron's first female chief technology officer and later led Tengizchevroil, the joint venture responsible for operating Kazakhstan's massive Tengiz oil field.
Her background combines financial expertise with technical and operational experience, giving her a broad understanding of Chevron's global energy business.
The appointment signals Chevron's preference for an executive with both financial discipline and direct operational knowledge to lead its core oil and gas division.
Jeff Gustavson Becomes New CFO
Jeff Gustavson, currently president of Chevron's New Energies business, will succeed Bonner as chief financial officer.
Gustavson's appointment brings experience from Chevron's lower-carbon and emerging energy operations into the company's top finance role.
As CFO, he will oversee areas including financial planning, investor relations, treasury, tax and global financial operations.
The leadership change also reflects Chevron's effort to balance its traditional oil and gas operations with investments in future energy technologies.
Mark Nelson Shifts Toward Strategy
Mark Nelson, currently executive vice president of Oil, Products & Gas, will remain Chevron's vice chairman while taking greater responsibility for strategy and business development.
His new role will focus on identifying opportunities that strengthen Chevron's portfolio and support long-term growth.
The move allows Chevron to maintain continuity while preparing the company for future expansion and changes in the global energy market.
Leadership Change Comes During CEO Succession Planning
The executive reshuffle comes as Chevron prepares for a future leadership transition involving Chief Executive Officer Mike Wirth.
Wirth previously indicated that he was discussing succession planning with Chevron's board and did not expect to remain in the CEO role indefinitely.
The latest appointments could help strengthen Chevron's leadership pipeline as the company prepares for its next phase.
Why This Matters for Chevron
Chevron is operating in a changing energy environment where oil demand, energy security, climate policy and new technologies are all influencing business decisions.
The company continues to invest heavily in its traditional oil and gas operations while also exploring areas such as lower-carbon energy and technology improvements.
Putting an experienced executive like Bonner in charge of Oil, Products & Gas highlights the importance Chevron places on improving operational performance and maintaining competitiveness.
Chevron's leadership reshuffle moves Eimear Bonner from managing the company's finances to running its core oil and gas operations, while Jeff Gustavson takes over as CFO. The changes show Chevron is preparing its leadership team for the future while focusing on operational strength, energy demand and long-term growth.
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