Position
Executive Vice President
Company
Halliburton
HoustonEnergyOil And GasRenewable EnergyDescription
Halliburton has announced the promotion of Shannon Slocum to executive vice president and chief operating officer, effective January 1, 2026. Rami Yassine will succeed him as president, Eastern Hemisphere.
Quick answer
Halliburton Promotes Shannon Slocum to Chief Operating Officer (December 4, 2025). Halliburton is based in Houston, Texas, United States.
- Who is the new Executive Vice President at Halliburton?
- Halliburton named Shannon Slocum Executive Vice President, announced December 4, 2025.
- What did Halliburton announce on December 4, 2025?
- Halliburton has announced the promotion of Shannon Slocum to executive vice president and chief operating officer, effective January 1, 2026. Rami Yassine will succeed him as president, Eastern Hemisphere.
- What does Halliburton do?
- Halliburton is one of the world’s leading providers of products and services to the energy industry.
- Where is Halliburton based?
- Halliburton is based in Houston, Texas, United States.
- Which similar companies made leadership changes around the same time?
- Element One Hydrogen & Critical Minerals (December 3, 2025), Greenlane Renewables (November 29, 2025), Vallourec (November 29, 2025) and Whitebark Energy (December 14, 2025) also announced leadership changes within 45 days of Halliburton.
Source: Fundz verified event record.
Other recent leadership changes in Energy and Oil And Gas
Executive moves at companies in the same sectors within 45 days, from Fundz verified event records.
- Element One Appoints Timothy Johnson as Chief Operating Officer (December 3, 2025)
- Greenlane Promotes Dale Goudie to Chief Technology Officer (November 29, 2025)
- Vallourec Appoints Nathalie Delbreuve as Chief Financial Officer (November 29, 2025)
- Whitebark Energy Appoints Nik Sykiotis as Chief Executive Officer (December 14, 2025)
- Focused Energy Appoints Debbie Callahan as Chief Strategic Officer and Omar Biabani as Chief Technology Officer (December 17, 2025)
- Constellation Energy Appoints Shane Smith as Chief Financial Officer (November 21, 2025)
Who to call at Halliburton, and when
A new leader at Halliburton brings new priorities and often new vendors. The first weeks are when they listen.
- An alert the day Halliburton raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at Halliburton, from your own LinkedIn network
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Fundz sees it the moment Halliburton changes its leadership, hires an exec or expands, usually minutes after it happens, and tells you who to reach.
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