Ernie L. Danner is currently the Chairman at Nine Energy Service, Inc., BCCK Engineering, Inc., and Pipeline Plastics LLC. He is also the Lead Independent Director at Shelf Drilling Ltd. and an Operating Partner at SCF Partners LLC. In the past, he served as the President, Chief Executive Officer & Director at Exterran GP LLC and Archrock, Inc. He was also the Chairman, President & Chief Executive Officer at Archrock Partners LP and Beckman Production Services LLC. Additionally, he held positions as an Independent Director at Copano Energy LLC, Director at Matson Alaska, Inc. and Horizon Lines Holding Corp., and Chief Financial Officer, Treasurer & VP at INDSPEC Chemical Corp. Mr. Danner received his undergraduate and graduate degrees from Rice University.
Ann G. Fox
Ms. Ann G. Fox is an Independent Director at Devon Energy Corp., a President, CEO, Secretary & Director at Nine Energy Service, Inc., a Chief Executive Officer at Big Lake Services LLC, a Chief Executive Officer at CDK Perforating LLC, a Chief Executive Officer at Crest Pumping Technologies LLC, a Chief Executive Officer & Director at Nine Energy Service LLC, a Member at HBS Alumni Association, a Member at James A. Baker III Institute for Public Policy, a Member at The National Petroleum Council and a President & Director at Beckman Production Services LLC. She is on the Board of Directors at Devon Energy Corp., Nine Energy Service, Inc., Nine Energy Service LLC, American Petroleum Institute, Inc., Beckman Production Services LLC and Groton School. Ms. Fox was previously employed as an Analyst by Prudential Securities, a Vice President by SCF Partners LLC, a Principal by United States Marine Corps, and an Analyst by Warburg Dillon Read LLC. She received her undergraduate degree from Georgetown University and an MBA from Harvard Business School.
Curtis F. Harrell
Curtis F. Harrell is an Independent Director at Nine Energy Service, Inc. since 2017. He is also a Director at Citation Oil & Gas Corp. since 2002. Mr. Harrell is a Member of the Young Presidents Organization. Previously, he was a Director at Brigham Exploration Co. LLC from 1993 to 2003. He also served as a Director-Domestic Finance at Enron Capital & Trade Resources Corp. from 1994 to 1996. Mr. Harrell was a Director at Carlile Bancshares, Inc. from 2010 to 2017. He was also a Director at Beckman Production Services LLC from 2014 to 2017. Additionally, Mr. Harrell held the position of Executive Vice President & Partner at R. Chaney & Co., Inc. from 1996 to 1998. He holds an MBA from Southern Methodist University and an undergraduate degree from The University of Texas at Austin.
Darryl K. Willis
Darryl K. Willis is currently an Independent Director at Nine Energy Service, Inc. since 2018, a Director at INROADS, Inc. since 2018, a Director at American Bureau of Shipping, and Vice President-Energy & Resources at Microsoft Corp. since 2019. Former roles include President & Chief Executive Officer-Angola at BP Plc (Texas) in 2017, Independent Director at Dril-Quip, Inc., Senior Vice President-Reservoir Development at BP America, Inc. from 1993 to 2017, Vice President-Technology Operations at TNK-BP Ltd. from 1993 to 2017, General Manager at BP Angola from 1993 to 2017, and Vice President-Oil, Gas & Energy at Google Cloud from 2018 to 2019. Education includes undergraduate studies at Northwestern State University, graduate studies at the University of New Orleans, and graduate studies at Stanford Graduate School of Business.
Patrick Joseph Bartels
Mr. Patrick J. Bartels is an Independent Director at FAT Brands, Inc., an Independent Director at Twin Hospitality Group, Inc., an Independent Director at Millrose Properties, Inc., an Independent Director at Marblegate Acquisition Corp., an Independent Director at Hexion Holdings Corp., an Independent Director at Noble Drilling Services LLC and an Independent Director at Noble Services Co. LLC. He is on the Board of Directors at Nine Energy Service, Inc., FAT Brands, Inc., Twin Hospitality Group, Inc., Millrose Properties, Inc., Pyxus International, Inc., Marblegate Acquisition Corp., Hexion Holdings Corp., LifeCare Holdings LLC, MYT Holding LLC, NPE Winddown LLC, Parker Wellbore, Payless Holdings LLC, Resolute Topco, Inc., Sungard Availability Services LP, Noble Drilling Services LLC, Noble Services Co. LLC and Exide Technologies SAS. Mr. Bartels was previously employed as an Independent Director by View, Inc., a Non-Executive Director by Cineworld Group Plc, an Independent Director by Trinity Place Holdings, Inc., an Independent Director by B. Riley Principal Merger Corp. II, an Independent Director by Alta Equipment Group, Inc., an Independent Director by Parker Drilling Co., an Independent Director by Grizzly Energy LLC, a Managing Member by Redan Advisors LLC, an Independent Director by Arch Resources, Inc., an Independent Director by WCI Communities, Inc., a Managing Principal by Monarch Alternative Capital LP, and a Research Analyst by INVESCO Institutional (N.A.), Inc. He also served on the board at Douglas Elliman, Inc., Noble Holding Corp. Plc, Noble Corp. (Cayman Islands), CEC Entertainment LLC, Libbey, Inc., Centric Brands LLC, BH Security LLC, Hexion, Inc., B. Riley Principal Merger Corp, AgileThought, Inc., CEC Entertainment LLC, Renew Financial Holdings, Inc. (California), SunGard Availability Services (UK) Ltd. and Tuscany International Drilling, Inc. He received his undergraduate degree from Bucknell University.
Alexander Esslemont
Alexander Esslemont was the founder of Abrado, Inc., established in 2009, where the title held was Chief Executive Officer. Current jobs include President, Chief Executive Officer & Director at Parker Wellbore, and Director at Nine Energy Service, Inc. starting in 2026. Former jobs include Chief Executive Officer at SensorTran, Inc. in 2011; President & Chief Executive Officer at Roxar AS from 2001 to 2007; President, Chief Executive Officer & Director at Parker Drilling Co. from 2020 to 2025; Non-Executive Director at Varel International, Inc.; and President at Expro International Group Ltd. Education includes undergraduate studies at Heriot-Watt University.
John Carney Hawks
John Carney Hawks is the founder of Brigade Capital Management LP, founded in 2006. Titles held at Brigade Capital Management LP included Head of Special Situations & Portfolio Manager from 2006 to 2021. Mr. Hawks is also the founder of JC Hawks & Co. Llc.. Mr. Hawks is Chairman at Nine Energy Service, Inc. starting in 2026. Mr. Hawks is Chairman at Cornerstone Chemical Co. LLC. Mr. Hawks is Independent Director at WW International, Inc. starting in 2025. Mr. Hawks is Director at Cenveo Worldwide Ltd. Mr. Hawks is Director at Children's Cardiomyopathy Foundation. Mr. Hawks is Director at Invacare Corp. starting in 2007. Mr. Hawks is Director at GatesAir, Inc. Former jobs include Chairman & Chief Executive Officer at Hawks Acquisition Corp., Chairman at Invacare Holdings Corp., Managing Director at MacKay Shields LLC, Director at Aventine Resources Plc, Independent Director at Extraction Oil & Gas, Inc. in 2021, Director at Aventine, Inc., Independent Director at Ferrellgas LP from 2021 to 2026, Independent Director at Ferrellgas Partners LP from 2021 to 2026, and Independent Director at Ferrellgas, Inc. from 2021 to 2026. Education includes undergraduate studies at the University of Virginia and an undergraduate degree from McIntire School of Commerce conferred in 1996.
John Carney Hawks
John Carney Hawks is the founder of Brigade Capital Management LP, founded in 2006. Titles held at Brigade Capital Management LP included Head of Special Situations & Portfolio Manager from 2006 to 2021. Mr. Hawks is also the founder of JC Hawks & Co. Llc.. Mr. Hawks is Chairman at Nine Energy Service, Inc. starting in 2026. Mr. Hawks is Chairman at Cornerstone Chemical Co. LLC. Mr. Hawks is Independent Director at WW International, Inc. starting in 2025. Mr. Hawks is Director at Cenveo Worldwide Ltd. Mr. Hawks is Director at Children's Cardiomyopathy Foundation. Mr. Hawks is Director at Invacare Corp. starting in 2007. Mr. Hawks is Director at GatesAir, Inc. Former jobs include Chairman & Chief Executive Officer at Hawks Acquisition Corp., Chairman at Invacare Holdings Corp., Managing Director at MacKay Shields LLC, Director at Aventine Resources Plc, Independent Director at Extraction Oil & Gas, Inc. in 2021, Director at Aventine, Inc., Independent Director at Ferrellgas LP from 2021 to 2026, Independent Director at Ferrellgas Partners LP from 2021 to 2026, and Independent Director at Ferrellgas, Inc. from 2021 to 2026. Education includes undergraduate studies at the University of Virginia and an undergraduate degree from McIntire School of Commerce conferred in 1996.