X0306 4 2019-02-26 1 0001694028 Liberty Oilfield Services Inc. LBRT 0001160588 DAY ROBERT C/O OAKMONT CORPORATION 865 SOUTH FIGUEROA STREET SUITE 700 LOS ANGELES CA 90017 0 0 0 1 Member of 10% owner group 0000924171 OAKMONT CORP 865 SOUTH FIGUEROA STREET SUITE 700 LOS ANGELES CA 90017 0 0 0 1 Member of 10% owner group 0001705552 LAUREL ROAD LLC C/O OAKMONT CORPORATION 865 SOUTH FIGUEROA STREET SUITE 700 LOS ANGELES CA 90017 0 0 0 1 Member of 10% owner group 0001706009 LAUREL ROAD II, LLC C/O OAKMONT CORPORATION 865 SOUTH FIGUEROA STREET SUITE 700 LOS ANGELES CA 90017 0 0 0 1 Member of 10% owner group Class A Common Stock 2019-02-26 4 J 0 363704 0.00 A 830415 I See Footnotes Class A Common Stock 2019-02-26 4 J 0 1136296 0.00 A 2594412 I See Footnotes Class A Common Stock 2019-02-26 4 S 0 363704 16.03 D 466711 I See Footnotes Class A Common Stock 2019-02-26 4 S 0 1136296 16.03 D 1458116 I See Footnotes Class B Common Stock 2019-02-26 4 J 0 363704 0.00 D 2226015 I See Footnotes Class B Common Stock 2019-02-26 4 J 0 1136296 0.00 D 6954600 I See Footnotes LLC Units 2019-02-26 4 J 0 363704 D Class A Common Stock 363704 2226015 I See Footnotes LLC Units 2019-02-26 4 J 0 1136296 D Class A Common Stock 1136296 6954600 I See Footnotes Pursuant to the terms of the limited liability company agreement of Liberty Oilfield Services New HoldCo LLC ("Liberty LLC"), Liberty LLC redeemed "LLC Units," which represent an ownership interest in Liberty LLC, and an equal number of Class B common stock (the "Class B Common Stock") of Liberty Oilfield Services Inc. (the "Issuer") in exchange for shares of Class A common stock of the Issuer (the "Class A Common Stock") on a one-for-one basis. By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended, each of Robert Day, the sole shareholder of Oakmont Corporation ("Oakmont"), and Oakmont, which is a member and the administrator of each of Laurel Road, LLC ("Laurel 1") and Laurel Road II, LLC ("Laurel 2"), may be deemed to have an indirect pecuniary interest in the securities held directly by Laurel 1 and Laurel 2. In accordance with Instruction 4(b)(iv), the entire amount of the securities held by each of Laurel 1 and Laurel 2 are reported herein. Each reporting person disclaims beneficial ownership of any securities that are not directly owned by such reporting person, except to the extent of their indirect pecuniary interest therein. This report shall not be deemed an admission that such reporting person is a member of a group or the beneficial owner of any securities not directly owned by such reporting person. Shares held directly by Laurel 1. Shares held directly by Laurel 2. /s/ Robert Miller, by Power of Attorney 2019-02-28