Results of Operations and Financial Condition. On July 29, 2026, Patterson-UTI Energy, Inc. announced financial results for the three and six months ended June 30, 2026. The press release, dated July 29, 2026, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, shall not otherwise…

Other Events. On June 4, 2026, the Company completed its previously announced redemption of all the approximately $482.5 million aggregate principal amount of its outstanding 3.95% Senior Notes due 2028 (the “2028 Notes”). The 2028 Notes were redeemed at a redemption price of 100.00% of the principal amount of the 2028 Notes outstanding, plus accrued and unpaid interest to the redemption date. The redemption of the 2028 Notes was funded using a portion of the net proceeds from the Company’s p…

The filing describes an amendment to the long-term incentive plan, not a management change.

Entry into a Material Definitive Agreement. On May 19, 2026, Patterson-UTI Energy, Inc. (the “Company”) completed its previously announced offering (the “Offering”) of $500 million aggregate principal amount of the Company’s 6.050% Senior Notes due 2036 (the “Notes”). The Company intends to use the net proceeds from the Offering to redeem its outstanding 3.95% Senior Notes due 2028 and for general corporate purposes. The Notes were issued pursuant to the base indenture, dated as of November 1…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information described in

Other Events. On May 5, 2026, Patterson-UTI Energy, Inc. (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Goldman Sachs & Co. LLC, Wells Fargo Securities, LLC and Scotia Capital (USA) Inc., as representatives of the underwriters listed therein, relating to the sale by the Company (the “Offering”) of $500 million aggregate principal amount of the Company’s 6.050% Senior Notes due 2036 (the “Notes”). The Company intends to use the net proceeds from the…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information described in

Entry into a Material Definitive Agreement. On April 24, 2026, Patterson-UTI Energy, Inc. (the “Company”) entered into the Assignment and Amendment No. 1 to Second Amended and Restated Credit Agreement (the “Amendment”), which amends the Second Amended and Restated Credit Agreement, dated as of January 31, 2025, by and among the Company, Wells Fargo Bank, National Association, as administrative agent, and the letter of credit issuers and lenders party thereto (as amended, the “Credit Agreemen…

Results of Operations and Financial Condition. On April 22, 2026, Patterson-UTI Energy, Inc. announced financial results for the three months ended March 31, 2026. The press release, dated April 22, 2026, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, shall not otherwise be s…

Results of Operations and Financial Condition. On February 4, 2026, Patterson-UTI Energy, Inc. (the “Company” or “Patterson-UTI”) announced financial results for the three and twelve months ended December 31, 2025. The press release, dated February 4, 2026, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchan…

Results of Operations and Financial Condition. Patterson-UTI Energy, Inc. (the “Company”) will deliver an investor presentation that includes the slides attached as Exhibit 99.1 to this Current Report on Form 8-K, which include certain updates to the Company’s previously issued guidance for the fourth quarter of 2025, and which are incorporated herein by reference. The information furnished pursuant to Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Sectio…

Results of Operations and Financial Condition. On October 22, 2025, Patterson-UTI Energy, Inc. (the “Company” or “Patterson-UTI”) announced financial results for the three and nine months ended September 30, 2025. The press release, dated October 22, 2025, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchang…

Director — Leslie A. Beyer: The director resigned to accept a confirmed federal government position, which is a standard external career move rather than a negative corporate event.

Chief Operating Officer — James M. Holcomb: The filing discloses the internal promotion of a long-tenured executive to the role of Chief Operating Officer, which is a standard succession or role change rather than a departure.

Results of Operations and Financial Condition. On July 23, 2025, Patterson-UTI Energy, Inc. (the “Company” or “Patterson-UTI”) announced financial results for the three and six months ended June 30, 2025. The press release, dated July 23, 2025, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 193…

Results of Operations and Financial Condition. On April 23, 2025, Patterson-UTI Energy, Inc. (the “Company” or “Patterson-UTI”) announced financial results for the three months ended March 31, 2025. The press release, dated April 23, 2025, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as…

Chief Accounting Officer — Forrest Robinson: The filing discloses the internal promotion of the Corporate Controller to Chief Accounting Officer, which is a standard succession event rather than a departure.

Results of Operations and Financial Condition. On February 5, 2025, Patterson-UTI Energy, Inc. (the “Company” or “Patterson-UTI”) announced financial results for the three and twelve months ended December 31, 2024. The press release, dated February 5, 2025, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchan…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information described in

Entry into a Material Definitive Agreement. On January 31, 2025, we entered into the Second Amended and Restated Credit Agreement with the lenders party thereto and Wells Fargo Bank, National Association, as administrative agent, and the other parties thereto (the “Credit Agreement”). The Credit Agreement amends and restates our Amended and Restated Credit Agreement dated as of March 27, 2018. The commitments under the Credit Agreement are $500 million, and the loans and commitments under the…

Results of Operations and Financial Condition. On October 23, 2024, Patterson-UTI Energy, Inc. (the “Company” or “Patterson-UTI”) announced financial results for the three and nine months ended September 30, 2024. The press release, dated October 23, 2024, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchang…

Other Events. On September 30, 2024, Patterson-UTI Energy, Inc. issued a press release announcing that one of its subsidiaries had signed a previously announced joint venture agreement with a subsidiary of ADNOC Drilling. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Executive Vice President and Chief Business Officer — James M. Holcomb: The filing discloses a negotiated transition agreement for a senior executive to remain in his current role until 2026 or 2027, rather than an immediate departure or routine appointment.

Results of Operations and Financial Condition. On July 24, 2024, Patterson-UTI Energy, Inc. (the “Company” or “Patterson-UTI”) announced financial results for the three and six months ended June 30, 2024. The press release, dated July 24, 2024, is furnished as Exhibit 99.1 to this report and incorporated by reference herein. The information furnished pursuant to Item 2.02, including Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 193…

The filing describes the stockholder approval of an amendment to the company's long-term incentive plan, which is a compensatory arrangement rather than a change in management personnel.