On and effective as of March 11, 2021, the Board of Directors of Nuverra Environmental Solutions, Inc. appointed Roger Mendelovitz to the role of principal accounting officer of the Company. Mr. Mendelovitz, age 45, has served as the Company's Corporate Controller since June 2020. He has over 20 years of experience in accounting, auditing, and SEC reporting in the oil field services and midstream sectors, and prior to joining the Company he served as the Corporate Controller of Blue Mountain Midstream from 2018 to 2020, as the Director of SEC Reporting for Ranger Energy Services from 2017 to 2018, and as the Manager of SEC Reporting for PennTex Midstream Partners from 2015 to 2018.