and in Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, and shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

CFO — Heather Schmidt: The filing announces the permanent appointment of an existing senior executive (SVP) as CFO, which is an internal promotion rather than a departure.

The filing discloses the adoption of a new long-term incentive plan for employee retention, not a change in management personnel.

and in Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, and shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

CFO — Guy Sirkes: The CFO is resigning to join another company, but an internal successor (Heather Schmidt) is appointed as Interim CFO, indicating an orderly transition rather than a sudden loss of leadership.

Other Events On March 25, 2026, the common stock of Nine Energy Service, Inc. (the “Company”) was approved for listing on the NYSE American stock exchange and is anticipated to begin trading on the NYSE American on Tuesday, March 31, 2026, at market open, under the ticker symbol “NINE.” On March 26, 2026, the Company issued a press release announcing such approval, which is attached hereto as Exhibit 99.1. Cautionary Note Regarding Forward-Looking Statements This Current Report on Form 8-K co…

Executive Vice President, General Counsel and Secretary — Theodore R. Moore: The Executive Vice President, General Counsel, and Secretary is resigning to join another company, representing a genuine departure of a senior officer.

Termination of a Material Definitive Agreement. Pursuant to the Plan, on the Plan Effective Date, the obligations of Company Parties under the following agreements were terminated: (i) the Indenture, dated as of January 30, 2023, by and among the Company, the guarantors party thereto and U.S. Bank Trust Company, National Association, as trustee and as notes collateral agent, relating to the Company’s 13.000% Senior Secured Notes due 2028 (the “Senior Secured Notes”), and (ii) the Loan and Sec…

Changes in Control of Registrant. The information set forth under Items 1.03 and 3.02 of this Report is incorporated herein by reference. Pursuant to the Plan, on the Plan Effective Date, all of the Company’s equity interests, including the Old Common Stock, outstanding prior to the Plan Effective Date, were canceled and are now of no force and effect, and the Company issued shares of New Common Stock to the Former Senior Secured Noteholders. As of the Plan Effective Date, the Former Senior S…

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

Material Modification to Rights of Security Holders. The information set forth under Items 1.02, 1.03, 5.01 and 5.03 of this Report is incorporated herein by reference.

Entry into a Material Definitive Agreement. Exit ABL Facility As previously disclosed, on February 3, 2026, the Company Parties entered into a senior secured super-priority asset-based debtor-in-possession loan and security agreement (the “DIP Loan and Security Agreement”) with White Oak Commercial Finance, LLC, as agent, and the lenders from time to time party thereto (the “DIP Lenders”), which provided the Company Parties with a senior secured super-priority asset-based debtor-in-possession…

Director: The filing discloses a complete board turnover and the appointment of new directors (Bartels, Esslemont, Hawks) in connection with a restructuring plan, which is a significant governance change but not the departure of a senior executive officer.

Bankruptcy or Receivership. On March 4, 2026, the Bankruptcy Court entered an order confirming the Plan. The material features of the Plan include, among other things: ● the Prepetition Lenders providing the Company Parties with the DIP ABL Facility, including a roll-up or refinancing of all obligations under the Prepetition Loan and Security Agreement, which converted into the Exit ABL Facility on the Plan Effective Date; ● the Company issuing 100% of a single class of common equity interest…

Unregistered Sales of Equity Securities. Pursuant to the Plan, on the Plan Effective Date, the Company issued approximately 13,950,000 shares of New Common Stock to holders (the “Former Senior Secured Noteholders”) of the Senior Secured Notes, which were cancelled pursuant to the Plan. The issuance of such shares of New Common Stock was exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”), pursuant to section 1145 of the Bankruptcy Code and, to the exte…

Entry into a Material Definitive Agreement. As previously disclosed in the Current Report on Form 8-K filed by Nine Energy Service, Inc. (the “Company”) on February 2, 2026 (the “Prior Report”), on February 1, 2026, the Company and certain of its subsidiaries (collectively with the Company, the “Company Parties”) filed voluntary petitions (the “Chapter 11 Cases”) under chapter 11 of title 11 of the United States Code in the United States Bankruptcy Court for the Southern District of Texas (th…

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. On February 2, 2026, the Company received notice from the staff of NYSE Regulation (“NYSE Regulation”) that NYSE Regulation has determined to commence proceedings to delist the Company’s common stock from the New York Stock Exchange (the “NYSE”) and that trading in the Company’s common stock on the NYSE would be suspended immediately. NYSE Regulation reached its decision that the Company is no…

of the Prior Report under the caption “DIP Loan and Security Agreement,” and such summary is incorporated herein by reference. The DIP Loan and Security Agreement includes certain terms and conditions (including the Bankruptcy Court confirming the Plan and the Plan becoming effective) providing for the conversion of the DIP ABL Facility into an exit senior secured asset-based revolving credit facility consisting of up to $135 million in aggregate principal amount of revolving commitments (the…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth above under

Bankruptcy or Receivership. Voluntary Chapter 11 Filing On February 1, 2026 (the “Petition Date”), Nine Energy Service, Inc. (the “Company”) and certain of its subsidiaries (collectively with the Company, the “Company Parties”) filed voluntary petitions (the “Chapter 11 Cases”) under chapter 11 of title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the Southern District of Texas (the “Bankruptcy Court”) to implement a prepackaged chapter 11 pla…

Regulation FD Disclosure. Commencement of the Solicitation Pursuant to the Restructuring Support Agreement, on February 1 , 2026, prior to filing the Chapter 11 Cases, the Company Parties commenced the Solicitation, including by distributing a disclosure statement relating to the Plan (the “Disclosure Statement”) and other solicitation materials to certain eligible holders of claims against the Company Parties that are entitled to vote on the Plan. A copy of the Disclosure Statement (includin…

Entry into a Material Definitive Agreement. The information regarding the Restructuring Support Agreement (as defined below) set forth in

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth above under

Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement. The filing of the Chapter 11 Cases described above in

Director — Richard A. Burnett: A director resigned from the board without disagreement, and the board size was reduced, which is a standard governance change rather than a loss of a senior executive officer.