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Curtis Dinan is Senior Vice President, Chief Commercial Officer for ONE Gas, Inc. He was formerly Senior Vice President, Chief Financial Officer and Treasurer.

Prior to ONE Gas becoming a standalone publicly traded company separated from ONEOK, Curtis served as Senior Vice President, Natural Gas, responsible for the commercial activities in its natural gas gathering and processing and natural gas pipelines segments. Before that, Curtis was Senior Vice President, Chief Financial Officer and Treasurer of ONEOK and ONEOK Partners from 2007 - 2011. He served on the ONEOK Partners Board of Directors from October 2007 to March 2011.

He joined ONEOK in 2004 as Vice President and Chief Accounting Officer after being an audit partner with both Arthur Andersen LLP and Grant Thornton LLP.

Dinan is a member of the Leadership Council for the American Gas Association and has served on the boards of directors for the Interstate Natural Gas Association of America and the Texas Pipeline Association. He has served on the campaign cabinet for the Tulsa Area United Way and is a past director of the Tulsa Regional Chamber, Tulsa’s Court Appointed Special Advocates (CASA) and Child Abuse Network. He is a graduate of Leadership Oklahoma, and a graduate and past director of Leadership Tulsa. Curtis is a member of the board of directors of Paul Mueller Company in Springfield, Missouri.

Curtis earned Bachelor of Arts degrees in Accounting and Business Administration in 1989 from Drury University. He also is a graduate of Harvard Business School’s Advanced Management program.

Curtis and his wife, Brenda, have three children and reside in Tulsa, Oklahoma.