Notes

During October 2025, OpCo, as the issuer, issued $825.0 million aggregate principal amount of 6.25% fixed-rate senior unsecured notes due October 2030 (the “2030 Notes”) and $600.0 million aggregate principal amount of 6.50% fixed-rate senior unsecured notes due October 2033 (the “2033 Notes”, and together with the 2030 Notes, the “Notes”) in a private offering.

In connection with the offering of the Notes, OpCo and each of the Guarantors (as defined below) entered into indentures (the “Indentures”), with UMB Bank, N.A., as trustee, relating to the issuance of the 2030 Notes and the 2033 Notes. The Indentures contain customary terms, events of default and covenants relating to, among other things, the incurrence of debt, the payment of dividends or similar restricted payments, undertaking transactions with OpCo’s unrestricted affiliates, and limitations on asset sales.

The Notes are guaranteed (the “Guarantees”), jointly and severally, on a senior unsecured basis by all of OpCo’s existing subsidiaries (collectively, the “Guarantors”).

At any time prior to October 15, 2027, OpCo may on any one or more occasions redeem up to 40% of the aggregate principal amount of the 2030 Notes (including any additional notes) issued under the 2030 Notes Indenture at a redemption price equal to 106.25% of the principal amount of the notes redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date, with an amount of cash not greater than the net cash proceeds of one or more equity offerings. At any time prior to October 15, 2029, OpCo may also redeem all or a part of the 2030 Notes of such series at a redemption price equal to 100% of the principal amount of the notes redeemed plus the applicable premium set forth in the 2030 Notes Indenture, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. OpCo may also redeem all or a part of the 2030 Notes at the redemption prices set forth in the 2030 Notes Indenture, plus accrued and unpaid interest, if any, on the notes redeemed, to, but excluding, the applicable redemption date.

At any time prior to October 15, 2028, OpCo may on any one or more occasions redeem up to 40% of the aggregate principal amount of the 2033 Notes (including any additional notes) issued under the 2033 Notes Indenture, at a redemption price of 106.50%; of the principal amount of the 2033 Notes, plus accrued and unpaid interest, if any, to, but excluding, the redemption date, with an amount of cash not greater than the net cash proceeds of one or more equity offerings. At any time prior to October 15, 2030, OpCo may also redeem all or a part of the 2033 Notes, at a redemption price equal to 100% of the principal amount of the 2033 Notes redeemed plus the applicable premium, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. OpCo may also redeem all or a part of the 2033 Notes, at the redemption prices set forth in the 2033 Notes Indenture, plus accrued and unpaid interest, if any, on the notes redeemed, to, but excluding, the applicable redemption date.

If a Change of Control (as defined in the Indentures) occurs with respect to any series of notes (along with a downgrade of the notes by two rating agencies), OpCo may be required to offer to purchase the Notes at a purchase price equal to 101% of the principal amount, plus accrued and unpaid interest, if any, to the purchase date.

The Notes and the Guarantees rank equally in right of payment with all of OpCo’s and the Guarantors’ existing and future senior indebtedness and senior to all of OpCo’s and the Guarantors’ future subordinated indebtedness. The Notes and the Guarantees are effectively subordinated in right of payment to all of OpCo’s and the Guarantors’ existing and future secured debt, including debt under the 2025 Revolving Credit Facility, to the extent of the value of the assets securing such debt, and will be structurally subordinated to all liabilities of any future subsidiaries of OpCo that do not guarantee the Notes.

2025 Revolving Credit Facility

During October 2025, OpCo entered into a revolving credit agreement (the “2025 Revolving Credit Facility”) which provides for lender commitments of $500.0 million and matures on the earlier of (i) September 26, 2030, and (ii) the date that is ninety-one (91) days prior to the stated maturity of the Notes if, on such date, the outstanding principal amount of the Notes exceeds $50.0 million (the “Maturity Date”). Borrowings under the 2025 Revolving Credit Facility are secured by a first-priority lien on substantially all assets of OpCo and its subsidiaries, and are also guaranteed by each of its subsidiaries.

As of June 30, 2026, the Company had $200.0 million outstanding borrowings under the 2025 Revolving Credit Facility. The weighted average interest rate on the total amount of borrowings under the 2025 Revolving Credit Facility was 5.93% and 6.00% for the three and six months ended June 30, 2026, respectively. The carrying value of the borrowings outstanding under the 2025 Revolving Credit Facility approximates fair value because the interest rates applicable to such amounts are variable and reflective of market rates and the debt may be repaid, in full or in part, at any time without penalty.

The 2025 Revolving Credit Facility contains certain affirmative and negative covenants customary for similar credit facilities. The 2025 Revolving Credit Facility contains certain financial covenants that require OpCo to maintain as of the last day of each Test Period (as defined in the 2025 Revolving Credit Facility) (a) a consolidated interest coverage ratio of no less than 2.50:1.00; (b) a consolidated net leverage ratio of not more than 5.00:1.00 (subject to a two full quarter step-up period of 5.25:1.00 upon the consummation of a material acquisition); and (c) a consolidated net senior secured leverage ratio of not more than 3.50:1.00. The 2025 Revolving Credit Facility also contains customary events of defaults. The occurrence and continuation of an event of default would permit the Lenders to terminate their commitments to advance loans under the 2025 Revolving Credit Facility, to require immediate repayment of any outstanding loans, including interest accrued, and all other obligations and amounts owed under the 2025 Revolving Credit Facility and to require the outstanding letters of credit to be cash collateralized pursuant to and in accordance with the terms of the 2025 Revolving Credit Facility. As of June 30, 2026, the Company was in compliance with these covenants.

Principal amounts borrowed under the 2025 Revolving Credit Facility may be prepaid from time to time and commitments thereunder may be terminated without premium or penalty. Any principal amounts outstanding on the Maturity Date will become due and payable on such date.

Interest Capitalization

The Company capitalizes interest costs mainly during the construction period of its assets. Upon placing the underlying asset in service, these costs are depreciated over the estimated useful life of the corresponding assets for which interest costs were incurred. During the three and six months ended June 30, 2026, the Company recorded $2.5 million and $7.4 million, respectively, of capitalized interest. During the three and six months ended June 30, 2025, the Company recorded $4.1 million of capitalized interest.

Asset Financing Notes

At the time of the WaterBridge Combination, the Company assumed various secured promissory notes entered into under a Master Equipment Finance Loan and Security Agreement (the “Master Agreement”) by WaterBridge Equity Finance LLC (“WBEF”) in 2023, in each case to finance the purchase of vehicles. The Master Agreement is an uncommitted credit facility whereby the lender may, but is not obligated to, provide loans to the Company for the purpose of purchasing vehicles. Loans borrowed pursuant to the Master Agreement and each promissory note are (a) secured by a first-priority lien on the vehicle(s) financed by such Master Agreement or promissory note, as applicable, and (b) repaid in 36 equal monthly installments.

Insurance Notes

At the time of the WaterBridge Combination, the Company assumed promissory notes from WBEF entered into during 2025 for the payment of insurance premiums with an aggregate principal amount of $11.8 million and an interest rate of 6.49% annually. The notes are payable in eleven monthly installments and will mature on August 1, 2026.