Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement onForm S-3 ofPatterson-UTI Energy, Inc. of our report dated February 13, 2019 relating to the consolidated financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears inPatterson-UTI Energy Inc.’s Annual Report on Form10-K for the year ended December 31, 2018. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
Houston, Texas
November 7, 2019