On January 5, 2022, the Board of Directors of NexTier Oilfield Solutions Inc. appointed Dipo Iluyomade, current Finance Director of the Company, as Chief Accounting Officer and Treasurer effective on January 8, 2022, following the separation of service of the current Principal Accounting Officer, Phung Ngo-Burns on January 7, 2022. As previously reported, Mrs. Ngo-Burns is leaving the Company to pursue other opportunities, and her decision was not the result of any disagreement with the Company but rather a desire to pursue other interests and business leadership opportunities.