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Eimear Bonner

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Editorial infographic showing Chevron Corporation’s 2027 executive reshuffle, with an energy industry backdrop, refinery and boardroom visuals, and summary panels highlighting Eimear Bonner’s move to global oil, products and gas, Jeff Gustavson’s appointment to finance, Mark Nelson’s shift toward strategy and business development, and the January 1, 2027 effective date.
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Chevron just put its CFO in charge of oil and gas. Is Eimear Bonner being tested for the top job?

Chevron Corporation is reshuffling three senior executives from January 1, 2027, moving Chief Financial Officer Eimear Bonner into responsibility for its global oil, products and gas business while Jeff Gustavson takes over finance. Vice Chairman Mark Nelson will shift toward strategy and business development. The changes arrive as investors increasingly focus on eventual succession to Chief Executive Officer Mike Wirth, making the appointments strategically important beyond their immediate operating responsibilities.