Ken Callahan

Officer

President at Williston Basin Chapter of the American Petroleum Institute

Fiscal year ended December 31, 2019. Published on January 24, 2026.

2019

Total compensation

Ken Callahan has been listed as an employee of Williston Basin Chapter of the American Petroleum Institute in Form 990 filings since fiscal year 2018.

Annual compensation details

President

2019

President

2018

2019

Other employees at Williston Basin Chapter of the American Petroleum Institute

Dewey Bailey

Board Member

Kerri Espeland

Treasurer

Jonathan Iblings

Vice President

Crysie Hendershot

Secretary

Brom Lutz

Board Member

Carl Hirsch

Board Member

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Revisions to this profile

January 24, 2026:

2020 Williston Basin Chapter of the American Petroleum Institute 990 published

January 24, 2026:

2019 Williston Basin Chapter of the American Petroleum Institute 990 published

January 24, 2026:

2018 Williston Basin Chapter of the American Petroleum Institute 990 published

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Ken Callahan

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Ken Callahan

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Other employees at Williston Basin Chapter of the American Petroleum Institute

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