ONEOK, Inc. announced that Stephen B. Allen, senior vice president, general counsel and assistant secretary will retire in mid-August, 2023 after more than 17 years with the company. Allen is leaving ONEOK to join Dallas-based GuideStone, a leading faith-based financial services organization. Allen will continue as an employee through the middle of August as the company focuses on his replacement, and will remain available to ONEOK and its management team in key aspects of the recently announced acquisition of Magellan Midstream Partners, L.P. A native of Massachusetts, Allen earned his juris doctorate from Vanderbilt University and a Bachelor of Arts degree in political science from Oklahoma Baptist University.