
	December 31,
	2025		2024
	(In thousands)
Debt Instruments:
Convertible Debt	$	1,250,000	$	—
Senior Notes	800,000		800,000
Credit Facility	—		262,500
Other Debt	1,967		—
Less: Amounts due within one year	—		12,500
Long-Term Debt, gross	2,051,967		1,050,000
Less: Deferred debt issuance costs	35,984		7,030
Long-Term Debt	$	2,015,983	$	1,042,970

On November 10, 2025, we entered into a second Amended and Restated Credit Agreement (the "New Credit Facility") with Wells Fargo Bank, National Association, as administrative agent, and the other lenders party thereto, which amended and restated our then-existing secured credit facility (the "Former Credit Facility"), which consisted of a $750 million senior secured revolving credit facility (the "Revolving Credit Facility") and a $250 million senior secured term A loan (the "Term Loan"). The Revolving Credit Facility and the Term Loan were repaid, in their entirety, with the proceeds from the 2030 Notes as discussed below. The New Credit Facility includes a $1.25 billion senior secured revolving credit facility. The proceeds of loans under the New Credit Facility are available for working capital needs, permitted acquisitions and other general corporate purposes.

The New Credit Facility is scheduled to mature on November 10, 2030, subject to an early maturity trigger if on any date the aggregate outstanding principal amount of unsecured indebtedness due within 91 days thereof is in excess of 100% of EBITDA, as defined in the New Credit Facility, for the last four full fiscal quarters. However, this early maturity trigger will not apply if (1) the total Net Leverage Ratio is less than or equal to 2.00 to 1.00 or (2) liquidity is at least 125% of such outstanding unsecured indebtedness. The Company’s obligations under the New Credit Facility are guaranteed by the same guarantors that guarantee the 2030 Notes. The New Credit Facility is secured by first-priority liens on certain assets owned by the Company and the guarantors (other than its subsidiaries comprising a portion of its Government Operations segment), provided such liens may be released if the Company obtains investment grade ratings of at least BBB- from S&P or Baa3 from Moody's and no default or event of default exists.

The New Credit Facility allows for additional parties to become lenders and, subject to certain conditions, for the increase of the commitments under the New Credit Facility, subject to an aggregate maximum for all additional commitments of (1) the greater of (a) $600 million and (b) 100% of EBITDA, as defined in the New Credit Facility, for the last four full fiscal quarters, plus (2) additional amounts provided the Company is in compliance with a pro forma first lien leverage ratio test 3.00 to 1.00 or less.

Outstanding loans under the New Credit Facility bear interest at our option at either (i) the Term SOFR rate plus a margin ranging from 1.00% to 1.75% per year or (ii) the base rate (the highest of (x) the administrative agent's prime rate, (y) the Federal Funds rate plus 0.50% and (z) the Term SOFR rate for a one-month tenor plus 1.00%) plus a margin ranging from 0.0% to 0.75% per year. In addition, the Company will be charged (1) a commitment fee of between 0.15% and 0.225% per year on the unused portion of the New Credit Facility, (2) a letter of credit fee of between 1.00% and 1.75% per year with respect to the amount of each financial letter of credit issued under the New Credit Facility, and (3) a letter of credit fee of between 0.75% and 1.05% per year with respect to the amount of each performance letter of credit or commercial letter of credit issued under the New Credit Facility. The applicable margin for loans, the commitment fee and the letter of credit fees set forth above will vary quarterly based on the Company's consolidated total net leverage ratio.

The New Credit Facility contains representations and warranties, affirmative and negative covenants and events of default that the Company considers customary for an agreement of this type, including covenants setting a maximum consolidated total net leverage ratio and a minimum consolidated interest coverage ratio. If any event of default relating to bankruptcy or other insolvency events occurs with respect to the Company, the lenders’ commitments under the New Credit Facility will automatically terminate and all outstanding obligations under the New Credit Facility will immediately become due and payable. If any other event of default occurs, the lenders will be permitted to terminate their commitments under the New Credit Facility, accelerate all outstanding obligations under the New Credit Facility and exercise other rights and remedies, including the commencement of foreclosure or other actions against the collateral. Based on the total net leverage ratio applicable at December 31, 2025, the margin for Term SOFR and base rate loans was 1.50% and 0.50%, respectively, the letter of credit fee for financial letters of credit and performance letters of credit was 1.50% and 0.90%, respectively, and the commitment fee for the unused portion of the New Credit Facility was 0.20%.

The New Credit Facility includes financial covenants that are evaluated on a quarterly basis, based on the rolling four-quarter period that ends on the last day of each fiscal quarter. The maximum permitted leverage ratio is 4.00 to 1.00, which may be increased to 4.50 to 1.00 for up to four consecutive fiscal quarters after a material acquisition. The minimum consolidated interest coverage ratio is 3.00 to 1.00. In addition, the New Credit Facility contains various restrictive covenants, including with respect to debt, liens, investments, mergers, acquisitions, dividends, equity repurchases and asset sales. As of December 31, 2025, we were in compliance with all covenants set forth in the New Credit Facility.

The New Credit Facility generally includes customary events of default for a secured credit facility. Under the New Credit Facility, (1) if an event of default relating to bankruptcy or other insolvency events occur with respect to the Company, all related obligations will immediately become due and payable; (2) if any other event of default exists, the lenders will be permitted to accelerate the maturity of the related obligations outstanding; and (3) if any event of default exists, the lenders will be permitted to terminate their commitments thereunder and exercise other rights and remedies, including the commencement of foreclosure or other actions against the collateral.

We issued $400 million aggregate principal amount of 4.125% senior notes due 2028 (the "Senior Notes due 2028") pursuant to an indenture dated June 12, 2020 (the "2020 Indenture"), among the Company, certain of our subsidiaries, as guarantors, and U.S. Bank Trust Company, National Association (formerly known as U.S. Bank National Association) ("U.S. Bank"), as trustee. The Senior Notes due 2028 are guaranteed by each of the Company's present and future direct and indirect wholly owned domestic subsidiaries that is a guarantor under the New Credit Facility.

The 2020 Indenture contains customary events of default, including, among other things, payment default, failure to comply with covenants or agreements contained in the 2020 Indenture or the Senior Notes due 2028 and certain provisions related to bankruptcy events. The 2020 Indenture also contains customary negative covenants. As of December 31, 2025, we were in compliance with all covenants set forth in the 2020 Indenture and the Senior Notes due 2028.

We may redeem the Senior Notes due 2029, in whole or in part, at any time on or after April 15, 2025 at a redemption price equal to (i) 101.031% of the principal amount to be redeemed if the redemption occurs during the 12-month period beginning on April 15, 2025 and (ii) 100.0% of the principal amount to be redeemed if the redemption occurs on or after April 15, 2026, in each case plus accrued and unpaid interest, if any, to, but excluding, the redemption date.

The 2021 Indenture contains customary events of default, including, among other things, payment default, failure to comply with covenants or agreements contained in the 2021 Indenture or the Senior Notes due 2029 and certain provisions related to bankruptcy events. The 2021 Indenture also contains customary negative covenants. As of December 31, 2025, we were in compliance with all covenants set forth in the 2021 Indenture and the Senior Notes due 2029.

In November 2025, the Company issued $1.25 billion aggregate principal amount of 0% Convertible Senior Notes due 2030 (the "2030 Notes"), including the exercise in full of the initial purchasers' option to purchase up to an additional $150.0 million principal amount of the 2030 Notes. The 2030 Notes were issued pursuant to an Indenture, dated November 19, 2025 (the "Indenture"), among the Company, certain of our subsidiaries, as guarantors, and U.S. Bank Trust Company, National Association, as trustee. The 2030 Notes are guaranteed by each of the Company's present and future direct and indirect wholly owned domestic subsidiaries that guarantee its existing and future capital markets indebtedness.

The conversion rate for the 2030 Notes will initially be 3.8094 shares of common stock per $1,000 principal amount of the 2030 Notes, which is equivalent to an initial conversion price of approximately $262.51 per share of common stock. The conversion rate is subject to adjustment upon certain events. Upon conversion, the Company will settle conversions by paying cash up to the aggregate principal amount of the 2030 Notes to be converted and paying or delivering, as the case may be, cash, shares of common stock or a combination of cash and shares of common stock, at its election, in respect of the remainder, if any, of its conversion obligation in excess of the aggregate principal amount of the 2030 Notes being converted, based on the applicable conversion rate(s).

The 2030 Notes will mature on November 1, 2030, unless earlier converted, redeemed or repurchased. The 2030 Notes will not bear regular interest, and the principal amount of the 2030 Notes will not accrete. However, special interest and additional interest, if any, may accrue on the 2030 Notes at a combined rate per annum not exceeding 0.50% upon the occurrence of certain events as described in the Indenture.

The Company may not redeem the 2030 Notes at its option before November 6, 2028. The Company will have the option to redeem the 2030 Notes, in whole or in part (subject to the partial redemption limitation described below), at any time, and from time to time, on or after November 6, 2028 and before the 26th Scheduled Trading Day (as defined in the Indenture) immediately before the maturity date, at a cash redemption price equal to the principal amount of the 2030 Notes to be redeemed, plus accrued and unpaid special interest and additional interest, if any, to, but excluding, the redemption date, but only if certain conditions are met.

Before August 1, 2030, noteholders will have the right to convert their 2030 Notes only under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ending on March 31, 2026, if the last reported sale price of the Company’s common stock exceeds 130% of the conversion price for each of at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding fiscal quarter; (2) during the five consecutive business days immediately after any ten consecutive trading day period if the trading price per $1,000 principal amount of 2030 Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price per share of common stock on such trading day and the conversion rate on each Trading Day; (3) upon the occurrence of specified corporate events or distributions on the common stock as set forth in the Indenture; or (4) if the Company calls the 2030 Notes for redemption.

If the Company undergoes a Fundamental Change (as defined in the Indenture), then, subject to certain exceptions, noteholders may require the Company to repurchase their 2030 Notes in whole or in part for cash at a price equal to the principal amount of the 2030 Notes to be repurchased, plus accrued and unpaid special interest and additional interest, if any, to, but excluding, the Fundamental Change Repurchase Date (as defined in the Indenture). The definition of Fundamental Change includes, among other things, certain business combination transactions involving the Company and certain de-listing events with respect to the common stock.

In connection with the pricing of the 2030 Notes and the exercise by the initial purchasers of their option in full to purchase additional 2030 Notes, respectively, the Company paid $131.9 million to enter into privately negotiated capped call transactions (the “Capped Call Transactions”) with affiliates of certain of the initial purchasers and certain other financial institutions (the “Option Counterparties”). The Capped Call Transactions have an expiration date of November 1, 2030 but may be redeemed earlier, subject to certain conditions.

The Capped Call Transactions cover, subject to anti-dilution adjustments substantially similar to those applicable to the 2030 Notes, the number of shares of common stock initially underlying the 2030 Notes. The Capped Call Transactions are expected generally to reduce the potential dilution to the holders of common stock upon any conversion of the 2030 Notes and/or offset any potential cash payments the Company is required to make in excess of the principal amount of converted 2030 Notes, as the case may be, with such reduction and or offset subject to a cap. The cap price of the Capped Call Transactions will initially be $396.24 per share of common stock, which represents a premium of 100% over the last reported sale price of the common stock of $198.12 per share on November 5, 2025, and is subject to certain adjustments under the terms of the Capped Call Transactions.

The Capped Call Transactions are separate transactions (in each case entered into by the Company with the Option Counterparties), are not part of the terms of the 2030 Notes and will not change the holders’ rights under the 2030 Notes. Holders will not have any rights with respect to the Capped Call Transactions. The Capped Call Transactions qualify for a scope exception from derivative accounting for instruments that are both indexed to the issuer's own stock and classified in stockholders' equity on our consolidated balance sheets.

The 2030 Notes and the Capped Call Transactions have been integrated for tax purposes. The impact of this tax treatment results in the Capped Call Transactions being deductible with the cost of the Capped Call Transactions qualifying as original issue discount for tax purposes over the term of the 2030 Notes.

We have posted surety bonds to support regulatory and contractual obligations for certain decommissioning responsibilities, projects and legal matters. We utilize surety bond facilities to support such obligations, but the issuance of surety bonds under those facilities is typically at the surety's discretion, and the surety bond facilities generally permit the surety, in its sole discretion, to terminate the facility or demand collateral. Although there can be no assurance that we will maintain our surety bond capacity, we believe our current capacity is adequate to support our existing requirements for the next 12 months. In addition, these surety bonds generally indemnify the beneficiaries should we fail to perform our obligations under the applicable agreements. We, and certain of our subsidiaries, have jointly executed general agreements of indemnity in favor of surety underwriters relating to surety bonds those underwriters issue. As of December 31, 2025, surety bonds issued and outstanding under these arrangements totaled approximately $363.0 million.

Similarly, we have provided letters of credit and bank guarantees to governmental agencies and contractual counterparties to support regulatory and contractual obligations for certain decommissioning responsibilities, projects and legal matters. We utilize our New Credit Facility and a bilateral letter of credit facility to support such obligations, but the issuance of letters of credit and bank guarantees under our bilateral letter of credit facility is at the issuer's discretion, and our bilateral letter of credit facility generally permits the issuer, in its sole discretion, to demand collateral if the issuer does not otherwise have the benefit of the collateral under our New Credit Facility. On May 14, 2025 we amended our bilateral letter of credit facility to increase the maximum aggregate amount to $75 million. Although there can be no assurance that we will maintain our bilateral letter of credit capacity, we believe our current capacity, together with capacity under our New Credit Facility, is adequate to support our existing requirements for the next 12 months. As of December 31, 2025, letters of credit and bank guarantees issued and outstanding under our bilateral letter of credit facility totaled approximately $48.7 million, and such letters of credit and bank guarantees are secured by the collateral under our New Credit Facility.