Liberty Energy (LBRT) 10-K 2022 FY Annual report

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER UNDER

18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer of Liberty Energy Inc. (the “Company”), does hereby certify, to such officer’s knowledge, that:

The Annual Report on Form 10-K for the year ended December 31, 2022 (“Form 10-K”) of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company, as of, and for, the periods presented in the Form 10-K.

Date: February 10, 2023

By: /s/ Michael Stock

Michael Stock

Chief Financial Officer

(Principal Financial Officer)