Archrock, Inc.

1. Description of Business and Basis of Presentation

We are an energy infrastructure company with a primary focus on midstream natural gas compression. We are a premier provider of natural gas compression services, in terms of total compression fleet horsepower, to customers in the energy industry throughout the U.S., and a leading supplier of aftermarket services to customers that own compression equipment in the U.S. We operate intwo business segments: contract operations and aftermarket services. Our predominant segment, contract operations, primarily includes designing, sourcing, owning, installing, operating, servicing, repairing and maintaining our owned fleet of natural gas compression equipment to provide natural gas compression services to our customers. In our aftermarket services business, we sell parts and components and provide operations, maintenance, overhaul and reconfiguration services to customers who own compression equipment.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to this Form 10-Q and do not include all information and disclosures required by GAAP. Therefore, this information should be read in conjunction with our consolidated financial statements and notes contained in our 2024 Form 10-K. The information furnished herein reflects all adjustments that are, in the opinion of management, of a normal recurring nature and considered necessary for a fair statement of the results of the interim periods reported. All intercompany balances and transactions have been eliminated in consolidation. Operating results for the nine months ended September 30, 2025 are not necessarily indicative of the results that may be expected for the year ending December 31, 2025.

2. Recent Accounting Developments

Accounting Standards Updates Implemented

Segment Reporting

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires disclosures of significant expenses for each reportable segment, as well as certain other disclosures to help investors understand how the CODM evaluates segment expenses and operating results. ASU 2023-07 allows disclosure of multiple measures of segment profitability if those measures are used to allocate resources and assess performance. We adopted ASU 2023-07 retrospectively during the year ended December 31, 2024. See Note 17 (“Segments”) for further details.

Business Combinations – Joint Venture Formations

In August 2023, the FASB issued ASU 2023-05, to reduce diversity in practice and provide decision-useful information to a joint venture’s investors by requiring that a joint venture apply a new basis of accounting upon formation. By applying a new basis of accounting, a joint venture will recognize and initially measure its assets and liabilities at fair value, with exceptions to fair value measurement that are consistent with the business combinations guidance, on the date of formation. ASU 2023-05 is effective prospectively for all joint venture formations with a formation date on or after January 1, 2025. Additionally, a joint venture that was formed before January 1, 2025, may elect to apply the amendments retrospectively if it has sufficient information to do so. Early adoption is permitted in any interim or annual period in which financial statements have not been issued or been made available for issuance, either prospectively or retrospectively. We adopted ASU 2023-05 during the three months ended March 31, 2025 and its adoption had no impact on our condensed consolidated financial statements.

Accounting Standards Updates Not Yet Implemented

Accounting for Internal-Use Software Costs

In September 2025, the FASB issued ASU 2025-06, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, to clarify and modernize the accounting for costs related to internal-use software. ASU 2025-06 removes all references to software project development stages in Subtopic 350-40 and clarifies cost capitalization may begin when (1) management has authorized and committed to funding the project and (2) it is probable the project will be completed, and the software will be used to perform its intended function and provides new examples to illustrate its application. ASU 2025-06 specifies that the property, plant and equipment disclosure requirements apply to capitalized software costs accounted for under Subtopic 350-40, regardless of how those costs are presented in the financial statements. ASU 2025-06 is effective for fiscal years beginning after December 15, 2027, and interim periods within those fiscal years. Entities may apply the guidance using a prospective, retrospective or modified transition approach. Early adoption is permitted. We are currently evaluating the potential impact of adopting this new guidance on our condensed consolidated financial statements and related disclosures.

Measurement of Credit Losses for Accounts Receivable and Contract Assets

In July 2025, the FASB issued ASU 2025-05, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, which amends Topic 326 to provide for a practical expedient for all entities and an accounting policy election for entities other than public business entities related to the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under FASB ASU 2016-10, Revenue from Contracts with Customers (Topic 606). All entities may elect a practical expedient that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. The amendments will be effective for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. Early adoption is permitted. Entities should apply the new guidance prospectively. We are currently evaluating the potential impact of electing the practical expedient and do not expect it to have a material impact on our condensed consolidated financial statements.

Disaggregation of Income Statement Expenses

In November 2024, the FASB issued ASU 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40), which will require tabular disclosures about certain expenses included in the expense captions presented on the face of the income statement, as well as disclosures about selling expenses. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and interim periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. Entities are required to adopt ASU 2024-03 prospectively with the option for retrospective application. We are currently evaluating the potential impact of adopting this new guidance on our condensed consolidated financial statements and related disclosures.

Income Tax Disclosures

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which will require significant additional disclosures, primarily focused on the disclosure of income taxes paid and the rate reconciliation table. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024, and interim periods within fiscal years beginning after December 15, 2025, and should be applied on a prospective basis, with a retrospective option. Early adoption is permitted. We are assessing and modifying our systems and processes to comply with our future adoption of ASU 2023-09.

3. Business Transactions

Flowco Disposition

On August 1, 2025, we completed the sale of certain contract operations customer agreements and approximately 155 compressors, comprising approximately 47,000 horsepower, used to provide compression services under those agreements along with other supporting assets. Goodwill, customer-related intangible assets and deferred revenue were allocated based on a ratio of the horsepower sold relative to the total horsepower of the asset group. The disposal group was classified as held for sale as of June 30, 2025, and its carrying value was adjusted to estimated fair value less costs to sell. We recorded a write-down of $0.9 million and $9.6 million during the three and nine months ended September 30, 2025, respectively, which is included in long-lived and other asset impairment in our condensed consolidated statements of operations.

NGCS Acquisition

On May 1, 2025, we completed the NGCS Acquisition, whereby we acquired all of the issued and outstanding equity interests in NGCS, including a fleet of approximately 326,000 operating horsepower and a 18,000 horsepower backlog of contracted new equipment, for aggregate total consideration of $349.4 million. Total consideration consisted of $296.5 million in cash, of which we paid $265.1 million to NGCSI sellers and $31.4 million to NGCSE sellers, and approximately 2.3 million shares of common stock issued to NGCSE sellers with an NGCS acquisition date fair value of $53.0 million. The cash portion of the purchase price was funded with borrowings under the Credit Facility. In accordance with the terms of the Merger Agreement, customary post-closing adjustments were made during the third quarter of 2025, resulting in a reduction to the purchase price of approximately $2.0 million.

The NGCS Acquisition was accounted for using the acquisition method of accounting, which requires, among other things, assets acquired and liabilities assumed to be recorded at their fair value on the NGCS acquisition date. The excess of the consideration transferred over those fair values is recorded as goodwill. The preliminary allocation of the purchase price, which is subject to certain adjustments, was based upon preliminary valuations. Our estimates and assumptions are subject to change upon the completion of management’s review of the final valuations. We are in the process of finalizing valuations related to property, plant and equipment, identifiable intangible assets, deferred tax liabilities, tax contingencies and goodwill. This could impact future depreciation and amortization as well as income tax expense. The final valuation of net assets acquired is expected to be completed as soon as practicable, but no later than one year from the NGCS acquisition date.

The following table summarizes the preliminary purchase price allocation based on the estimated fair values of the assets acquired and liabilities assumed as of the NGCS acquisition date:

Goodwill

The amount of goodwill resulting from the NGCS Acquisition is attributable to the expansion of our services in the Permian Basin where we currently operate and was allocated to our contract operations segment. The goodwill recorded is considered to have an indefinite life and will be reviewed annually for impairment or more frequently if indicators of potential impairment exist. None of the goodwill recorded for the NGCS Acquisition is expected to be deductible for U.S. federal income tax purposes.

Tax Contingency and Indemnification

We recorded a non-income tax-based contingency of $0.5 million and a corresponding indemnification asset of $0.5 million based on facts existing on the NGCS acquisition date. The non-income tax-based contingency arose from pre-acquisition activity at NGCS. As part of the NGCS Acquisition, the sellers agreed to indemnify us for certain non-income tax and environmental contingencies up to $11.4 million as of the NGCS acquisition date. Dependent upon facts and circumstances, the sellers’ indemnification obligation may be reduced over a period offour years from the NGCS acquisition date but may also be extended until the resolution of claims timely submitted to the sellers.