HI-CRUSH ONCORE PRONGHORN NEXSTAGE PROPDISPATCH Resources Investors About Careers OUR MANAGEMENT TEAM Dirk Hallen Chief Executive Officer Dirk Hallen was named Chief Executive Officer of Hi-Crush Inc. effective November 30, 2020. Prior to his accepting this position with Hi-Crush, Mr. Hallen was Co-founder and Chief Executive Officer of Pronghorn Logistics, LLC, which was acquired by Hi-Crush in May, 2019. Prior to Pronghorn, he was Director of Corporate Development at Rockpile Energy Services and worked as a management consultant at Booz & Company focused on the oil and gas industry. Mr. Hallen also serves on the Board of Directors of Hi-Crush. Stephen White Chief Operating Officer Stephen White was named Chief Operating Officer of Hi-Crush Inc. effective November 30, 2020. Prior to accepting this position with Hi-Crush, Mr. White co-founded Pronghorn and served as Pronghorn’s Chief Operating Officer. After Hi-Crush’s acquisition of Pronghorn, he served as Vice President of Logistics and Field Services at Hi-Crush. Prior to Pronghorn, Mr. White was Director of Business Operations at Rockpile Energy Services. William Barker General Counsel and Chief Commercial Officer William Barker was named General Counsel and Chief Commercial Officer of Hi-Crush Inc. effective November 30, 2020. Prior to his accepting this position with Hi-Crush, Mr. Barker most recently was Associate General Counsel at Insperity, Inc. He previously served in various roles during his prior five years at Hi-Crush, including as Associate General Counsel, Vice President of Midstream Operations, and Principal Strategy Officer. Mr. Barker previously worked for the law firm of Norton Rose Fulbright US LLP. About Operations Our Management Team Board of Directors Corporate Responsibility Community EHS HC Wildlife Protection CR Report Corporate News Corporate Reports © 2021 Hi-Crush Inc., All rights reserved