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Halliburton Appoints Shannon Slocum as Executive Vice President and Chief Operating Officer

Halliburton (HAL) | Dec. 4, 2025

By Fiona Wilson

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Halliburton, a leading oilfield services company, has made a significant executive appointment.

Shannon Slocum has been promoted to the position of executive vice president and COO at Halliburton.

In her new role, Slocum will be responsible for overseeing global operations, business development, and technology initiatives at the company, reflecting Halliburton's strategic goals.

Promotion of Shannon Slocum

Shannon Slocum's appointment as executive vice president and COO brings a wealth of experience in managing global operations to Halliburton's leadership team.

Succession Planning

Rami Yassine is set to succeed Shannon Slocum as president, Eastern Hemisphere, starting Jan. 1, 2026, highlighting Halliburton's commitment to internal talent development and leadership continuity.

Company Strategy

Halliburton aims to enhance customer value by focusing on operational excellence and strategic advancement, aligning with its mission to maximize asset value for clients.

  • Shannon Slocum's promotion reinforces Halliburton's dedication to cultivating internal talents and ensuring a seamless leadership transition.
  • Rami Yassine's succession underscores the company's commitment to nurturing talent and promoting from within for key leadership roles, showcasing a culture of growth and development within Halliburton.

The recent executive appointments at Halliburton mark a strategic shift towards operational excellence and talent development within the organization. With a renewed focus on leadership continuity and internal talent development, Halliburton is well-positioned for sustained growth and success under the new leadership structure.