X0306 4 2018-01-17 0 0001694028 Liberty Oilfield Services Inc. LBRT 0001705083 Gusek Ron 950 17TH STREET, SUITE 2400 DENVER CO 80202 0 1 0 0 President Class A Common Stock 2018-01-17 4 A 0 809141 A 809141 D Class A Common Stock 2018-01-17 4 D 0 15628 16.065 D 793513 D Class A Common Stock 2018-01-17 4 A 0 225544 0.00 A 1019057 D Class A Common Stock 2018-01-17 4 A 0 292481 0.00 A 1311538 D The reporting person acquired these securities in accordance with the Master Reorganization Agreement (the "MRA"), dated January 11, 2018, by and among Liberty Oilfield Services Inc. (the "Issuer"), the reporting person and the other parties thereto. Represents securities redeemed by the Issuer pursuant to the MRA in connection with the exercise of the underwriters' over-allotment option. Represents the price to the public less underwriting discounts and commissions in the Issuer's initial public offering of shares of its Class A common stock. These shares of restricted Class A Common Stock, granted pursuant to the Liberty Oilfield Services Inc. Legacy Restricted Stock Plan, will vest on February 20, 2018. These shares of restricted Class A Common Stock, granted pursuant to the Liberty Oilfield Services Inc. Legacy Restricted Stock Plan, will vest in three equal annual installments beginning on October 31, 2018. /s/ Ron Gusek, by Ryan Gosney as attorney-in-fact 2018-01-19