SemGroup Selects Thomas R. McDaniel as New Chairman Following Retirement of John Chlebowski


Tulsa based SemGroup Corporation announced the retirement of Chairman John F. Chlebowski from its Board of Directors effective December 31, 2016. He will be succeeded by Director Thomas R. McDaniel effective January 1, 2017.

“For the past seven years, I’ve had the distinct pleasure of leading SemGroup’s Board of Directors as we’ve challenged each other and the company’s management team to deliver shareholder value through financial discipline and focused growth,” said Chlebowski. “I commend my fellow directors, management and employees for the tremendous progress made in the last few years to strengthen SemGroup’s core financial position, manage operational risk, deliver a thoughtful growth strategy and promote an organizational culture centered on safety and integrity.”

Both Chlebowski and McDaniel have served as founding directors of SemGroup since 2009.

McDaniel has extensive operational and financial management experience. He was executive vice president, chief financial officer and treasurer of Edison International before retiring in 2008 after 37 years of service. Prior to 2005, McDaniel served as Chairman, Chief Executive Officer and President of Edison Mission Energy, Edison International’s power generation subsidiary. He also held the position of president and chief executive officer of Edison Capital, a capital and financial services business subsidiary. McDaniel currently serves on the Board of Directors for SunPower Corporation and Aquion Energy, Inc. He is also the Chairman of the Board of Tendril, Inc. McDaniel graduated from UCLA with a Bachelor of Science degree.


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