ExxonMobil (NYSE: XOM) today announced Liam M. Mallon, president of ExxonMobil Upstream Company and vice president Exxon Mobil Corporation, will retire effective February 1, 2025. The Board of Directors has appointed Dan L. Ammann president, ExxonMobil Upstream Company. Dan will continue as vice president, Exxon Mobil Corporation to succeed Liam. The Board also has appointed Barry L. Engle president, Low Carbon Solutions (LCS) and vice president for Exxon Mobil Corporation effective January 1, 2025.

“We thank Liam for his long-standing, dedicated service to the company, and we wish him all the best in his well-deserved retirement,” said Darren Woods, chairman and chief executive officer.

“These appointments continue the company’s approach of leveraging the diverse skills and experiences of a very accomplished executive team to bring fresh perspectives and approaches to each of our exceptionally talented organizations,” said Woods. “This has served us well over the last several years and is a useful, innovative way to strengthen our leadership teams, challenge conventions and broaden our people.”

Mallon, who has been president of ExxonMobil Upstream Company since 2022, joined the company in 1990 in Aberdeen, Scotland.

Ammann joined ExxonMobil in 2022 as president, Low Carbon Solutions to grow the company’s Low Carbon Solutions business and focus on delivering profitable, large-scale emissions-reduction solutions for key industries. He had previously been chief executive officer of Cruise, which is majority-owned by General Motors (GM), in 2018 and was appointed president of GM in 2014.

Engle joined ExxonMobil in September 2024 with three decades of experience in the automotive industry, including General Motors where he was president of GM North America, GM’s largest business and, before that, president of GM International.

About ExxonMobil

ExxonMobil, one of the largest publicly traded international energy and petrochemical companies, creates solutions that improve quality of life and meet society’s evolving needs.

The corporation’s primary businesses - Upstream, Product Solutions and Low Carbon Solutions – provide products that enable modern life, including energy, chemicals, lubricants, and lower emissions technologies. ExxonMobil holds an industry-leading portfolio of resources, and is one of the largest integrated fuels, lubricants, and chemical companies in the world. ExxonMobil also owns and operates the largest CO₂ pipeline network in the United States. In 2021, ExxonMobil announced Scope 1 and 2 greenhouse gas emission-reduction plans for 2030 for operated assets, compared to 2016 levels. The plans are to achieve a 20-30% reduction in corporate-wide greenhouse gas intensity; a 40-50% reduction in greenhouse gas intensity of upstream operations; a 70-80% reduction in corporate-wide methane intensity; and a 60-70% reduction in corporate-wide flaring intensity.

With advancements in technology and the support of clear and consistent government policies, ExxonMobil aims to achieve net-zero Scope 1 and 2 greenhouse gas emissions from its operated assets by 2050. To learn more, visit exxonmobil.com and ExxonMobil’s Advancing Climate Solutions.

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