Effective March 20, 2020, NexTier Oilfield Solutions Inc. appointed Phung Ngo-Burns as Chief Accounting Officer of the company. Due to current market conditions, in addition to the role of Chief Accounting Officer, Ms. Ngo-Burns will take an expanded role and will be responsible for treasury, tax, finance and business system integration, as well as oversight on the company's financial transactional services activities. Ms. Ngo-Burns replaces Michael Galvan, who departed the Company from his role as Chief Accounting Officer of the Company effective as of March 20, 2020, to pursue other opportunities.