10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from         to        

Commission File No. 001-33666

Archrock, Inc.

(Exact name of registrant as specified in its charter)

Delaware	74-3204509
(State or other jurisdiction of incorporation or organization) or organization)	(I.R.S. Employer Identification No.)

9807 Katy Freeway, Suite 100, Houston, Texas 77024

(Address of principal executive offices, zip code)

(281) 836-8000

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol	Name of exchange on which registered
Common stock, $0.01 par value per share	AROC	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

Number of shares of the common stock of the registrant outstanding as of April 24, 2024: 156,286,457 shares.

TABLE OF CONTENTS

	Page
Glossary	3
Forward-Looking Statements	4
Part I. Financial Information
Item 1. Financial Statements (unaudited)	5
Condensed Consolidated Balance Sheets	5
Condensed Consolidated Statements of Operations	6
Condensed Consolidated Statements of Equity	7
Condensed Consolidated Statements of Cash Flows	8
Notes to Unaudited Condensed Consolidated Financial Statements	9
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3. Quantitative and Qualitative Disclosures About Market Risk	27
Item 4. Controls and Procedures	27
Part II. Other Information
Item 1. Legal Proceedings	28
Item 1A. Risk Factors	28
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	28
Item 3. Defaults Upon Senior Securities	28
Item 4. Mine Safety Disclosures	28
Item 5. Other Information	29
Item 6. Exhibits	30
Signatures	31

2

GLOSSARY

The following terms and abbreviations appearing in the text of this report have the meanings indicated below.

2023 Form 10-K	Annual Report on Form 10-K for the year ended December 31, 2023
Share Repurchase Program	Share repurchase program approved by our Board of Directors on April 27, 2023 that allowed us to repurchase up to $50.0 million of outstanding common stock for a period of twelve months, which prior to its expiration was extended on April 25, 2024, for an additional twenty-four-month period and a replenishment of the authorized share repurchase amount to $50.0 million.
2027 Notes	$500.0 million of 6.875% senior notes due April 2027, issued in March 2019
2028 Notes	$800.0 million of 6.25% senior notes due April 2028, $500.0 million of which was issued in December 2019, $300.0 million of which was issued in December 2020
Amended and Restated Credit Agreement	Amended and Restated Credit Agreement, dated May 16, 2023, which amended and restated that Credit Agreement, dated as of March 30, 2017, which governs the Credit Facility
Archrock, our, we, us	Archrock, Inc., individually and together with its wholly-owned subsidiaries
ASU	Accounting Standards Update
Credit Facility	$750.0 million asset-based revolving credit facility due May 2028, as governed by the Amended and Restated Credit Agreement, dated May 16, 2023, which amended and restated that Credit Agreement, dated as of March 30, 2017
ECOTEC	Ecotec International Holdings, LLC
ESPP	Employee Stock Purchase Plan
Exchange Act	Securities Exchange Act of 1934, as amended
FASB	Financial Accounting Standards Board
Financial Statements	Condensed consolidated financial statements included in Part I Item 1 of this Quarterly Report on Form 10-Q
GAAP	U.S. generally accepted accounting principles
GHG	Greenhouse gases (carbon dioxide, methane and water vapor for example)
Hilcorp	Hilcorp Energy Company
Ionada	Ionada PLC
LIBOR	London Interbank Offered Rate
OTC	Over-the-counter, as related to aftermarket services parts and components
SEC	U.S. Securities and Exchange Commission
SG&A	Selling, general and administrative
SOFR	Secured Overnight Financing Rate
U.S.	United States of America
WACC	Weighted average cost of capital

3

FORWARD–LOOKING STATEMENTS

This Quarterly Report on Form 10–Q (this “Form 10-Q”) contains “forward–looking statements” intended to qualify for the safe harbors from liability established by the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact contained in this Form 10–Q are forward–looking statements within the meaning of the Exchange Act, including, without limitation, our business growth strategy and projected costs; future financial position; the sufficiency of available cash flows to fund continuing operations and pay dividends; the expected amount of our capital expenditures; anticipated cost savings; future revenue, gross margin and other financial or operational measures related to our business; the future value of our equipment; and plans and objectives of our management for our future operations. You can identify many of these statements by words such as “believe,” “expect,” “intend,” “project,” “anticipate,” “estimate,” “will continue” or similar words or the negative thereof.

Such forward–looking statements are subject to various risks and uncertainties that could cause actual results to differ materially from those anticipated as of the date of this Form 10–Q. Although we believe that the expectations reflected in these forward–looking statements are based on reasonable assumptions, no assurance can be given that these expectations will prove to be correct. Known material factors that could cause our actual results to differ materially from the expectations reflected in these forward–looking statements include the risk factors described in our 2023 Form 10–K and those set forth from time to time in our filings with the SEC, which are available through our website at www.archrock.com and through the SEC’s website at www.sec.gov. These risk factors include, but are not limited to, risks related to pandemics and other public health crises; an increase in inflation; ongoing international conflicts and tensions; risks related to our operations; competitive pressures; inability to make acquisitions on economically acceptable terms; uncertainty to pay dividends in the future; risks related to a substantial amount of debt and our debt agreements; inability to access the capital and credit markets or borrow on affordable terms to obtain additional capital; inability to fund purchases of additional compression equipment; vulnerability to interest rate increases; uncertainty relating to the phasing out of LIBOR; erosion of the financial condition of our customers; .risks related to the loss of our most significant customers; uncertainty of the renewals for our contract operations service agreements; risks related to losing management or operational personnel; dependence on particular suppliers and vulnerability to product shortages and price increases; information technology and cybersecurity risks; tax-related risks; legal and regulatory risks, including climate-related and environmental, social and governance risks.

All forward–looking statements included in this Form 10–Q are based on information available to us on the date of this Form 10–Q. Except as required by law, we undertake no obligation to publicly update or revise any forward–looking statement, whether as a result of new information, future events or otherwise. All subsequent written and oral forward–looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the cautionary statements contained throughout this Form 10–Q.

4

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

Archrock, Inc.

Condensed Consolidated Balance Sheets

(in thousands, except par value and share amounts)

(unaudited)

	March 31, 2024		December 31, 2023
Assets
Current assets:
Cash and cash equivalents	$	1,155	$	1,338
Accounts receivable, net of allowance of $496 and $587, respectively		105,295		124,069
Inventory		80,358		81,761
Other current assets		6,898		5,989
Total current assets		193,706		213,157
Property, plant and equipment, net		2,332,009		2,301,982
Operating lease right-of-use assets		14,343		14,097
Intangible assets, net		28,737		30,182
Contract costs, net		35,967		37,739
Deferred tax assets		2,847		3,192
Other assets		47,467		47,733
Non-current assets of discontinued operations		7,868		7,868
Total assets	$	2,662,944	$	2,655,950
Liabilities and Stockholders' Equity
Current liabilities:
Accounts payable, trade	$	48,717	$	61,026
Accrued liabilities		98,751		85,381
Deferred revenue		5,778		5,736
Total current liabilities		153,246		152,143
Long-term debt		1,566,566		1,584,869
Operating lease liabilities		12,364		12,271
Deferred tax liabilities		15,986		4,921
Other liabilities		24,834		22,857
Non-current liabilities of discontinued operations		7,868		7,868
Total liabilities		1,780,864		1,784,929
Commitments and contingencies (Note 7)
Equity:
Preferred stock: $0.01 par value per share, 50,000,000 shares authorized, zero issued		—		—
Common stock: $0.01 par value per share, 250,000,000 shares authorized, 165,775,863 and 164,984,401 shares issued, respectively		1,657		1,650
Additional paid-in capital		3,474,777		3,470,576
Accumulated deficit		(2,485,399)		(2,499,931)
Treasury stock: 9,489,406 and 9,020,454 common shares, at cost, respectively		(108,955)		(101,274)
Total equity		882,080		871,021
Total liabilities and equity	$	2,662,944	$	2,655,950

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

5

Archrock, Inc.

Condensed Consolidated Statements of Operations

(in thousands, except per share amounts)

(unaudited)

	Three Months Ended
	March 31,
	2024		2023
Revenue:
Contract operations	$	223,051	$	187,745
Aftermarket services		45,437		42,089
Total revenue		268,488		229,834
Cost of sales (excluding depreciation and amortization):
Contract operations		77,743		79,482
Aftermarket services		35,000		33,908
Total cost of sales (excluding depreciation and amortization)		112,743		113,390
Selling, general and administrative		31,665		26,425
Depreciation and amortization		42,835		40,181
Long-lived and other asset impairment		2,568		2,569
Restructuring charges		—		1,047
Interest expense		27,334		26,581
Gain on sale of assets, net		(2,381)		(3,605)
Other (income) expense, net		139		603
Income before income taxes		53,585		22,643
Provision for income taxes		13,053		6,158
Net income	$	40,532	$	16,485
Basic and diluted earnings per common share	$	0.26	$	0.10
Weighted average common shares outstanding:
Basic		154,187		154,116
Diluted		154,501		154,281

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

6

Archrock, Inc.

Condensed Consolidated Statements of Equity

(in thousands, except shares and per share amounts)

(unaudited)

				Additional
	Common Stock			Paid-in		Accumulated		Treasury Stock
		Amount	Shares	Capital		Deficit			Amount	Shares	Total
Balance at December 31, 2022	$	1,634	163,439,013	$	3,456,777	$	(2,509,133)	$	(88,585)	(7,810,548)	$	860,693
Shares withheld related to net settlement of equity awards		—	—		—		—		(3,773)	(383,766)		(3,773)
Cash dividends ($0.150 per common share)		—	—		—		(23,852)		—	—		(23,852)
Shares issued under ESPP		1	20,251		169		—		—	—		170
Stock-based compensation, net of forfeitures		14	1,444,636		3,313		—		—	(13,076)		3,327
Net income		—	—		—		16,485		—	—		16,485
Balance at March 31, 2023	$	1,649	164,903,900	$	3,460,259	$	(2,516,500)	$	(92,358)	(8,207,390)	$	853,050
Balance at December 31, 2023	$	1,650	164,984,401	$	3,470,576	$	(2,499,931)	$	(101,274)	(9,020,454)	$	871,021
Shares repurchased		—	—		—		—		(1,230)	(82,972)		(1,230)
Shares withheld related to net settlement of equity awards		—	—		—		—		(6,451)	(385,980)		(6,451)
Cash dividends ($0.165 per common share)		—	—		—		(26,000)		—	—		(26,000)
Shares issued under ESPP		—	17,800		244		—		—	—		244
Stock-based compensation, net of forfeitures		7	773,662		3,957		—		—	—		3,964
Net income		—	—		—		40,532		—	—		40,532
Balance at March 31, 2024	$	1,657	165,775,863	$	3,474,777	$	(2,485,399)	$	(108,955)	(9,489,406)	$	882,080

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

7

Archrock, Inc.

Condensed Consolidated Statements of Cash Flows

(in thousands)

(unaudited)

	Three Months Ended
	March 31,
	2024		2023
Cash flows from operating activities:
Net income	$	40,532	$	16,485
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		42,835		40,181
Long-lived and other asset impairment		2,568		2,569
Non-cash restructuring charges		—		927
Unrealized change in fair value of investment in unconsolidated affiliate		—		254
Inventory write-downs		199		216
Amortization of operating lease right-of-use assets		947		823
Amortization of deferred financing costs		1,193		1,288
Amortization of debt premium		(501)		(501)
Amortization of capitalized implementation costs		738		597
Stock-based compensation expense		3,964		3,327
Benefit from credit losses		(75)		(340)
Gain on sale of assets, net		(2,381)		(3,605)
Deferred income tax provision		12,460		5,881
Amortization of contract costs		5,768		5,090
Deferred revenue recognized in earnings		(2,859)		(4,476)
Changes in operating assets and liabilities:
Accounts receivable, net		19,819		7,632
Inventory		1,246		(4,131)
Other assets		(1,785)		609
Contract costs		(3,996)		(6,352)
Accounts payable and other liabilities		13,958		18,219
Deferred revenue		3,070		3,179
Other		2		(16)
Net cash provided by operating activities		137,702		87,856
Cash flows from investing activities:
Capital expenditures		(99,755)		(84,392)
Proceeds from sale of property, equipment and other assets		13,844		28,726
Proceeds from insurance and other settlements		45		—
Investments in unconsolidated entities		(57)		(2,000)
Net cash used in investing activities		(85,923)		(57,666)
Cash flows from financing activities:
Borrowings of long-term debt		244,525		158,850
Repayments of long-term debt		(263,050)		(160,100)
Dividends paid to stockholders		(26,000)		(23,852)
Repurchases of common stock		(1,230)		—
Taxes paid related to net share settlement of equity awards		(6,451)		(3,773)
Proceeds from stock issued under ESPP		244		170
Net cash used in financing activities		(51,962)		(28,705)
Net increase (decrease) in cash and cash equivalents		(183)		1,485
Cash and cash equivalents, beginning of period		1,338		1,566
Cash and cash equivalents, end of period	$	1,155	$	3,051

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

8

Archrock, Inc.

Notes to Condensed Consolidated Financial Statements

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 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 in two 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 consolidated financial statements have been prepared in accordance with the instructions to 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 2023 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 three months ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024.

2. Recent Accounting Developments

Accounting Standards Updates Not Yet Implemented

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 evaluating the impact that the adoption of ASU 2023-09 will have on our consolidated financial statements and related disclosures.

Segment Reporting

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which will require disclosures of significant expenses for each reportable segment, as well as certain other disclosures to help investors understand how the chief operating decision maker evaluates segment expenses and operating results. ASU 2023-07 will also allow disclosure of multiple measures of segment profitability if those measures are used to allocate resources and assess performance. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, and should be applied on a retrospective basis, unless impracticable. Early adoption is permitted. We are evaluating the impact that the adoption of ASU 2023-07 will have on our consolidated financial statements and related disclosures.

9

Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

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 expect that the adoption of ASU 2023-05 will have no impact on our consolidated financial statements.

3. Inventory

Inventory is comprised of the following:

	March 31,		December 31,
(in thousands)	2024		2023
Parts and supplies	$	68,176	$	70,759
Work in progress		12,182		11,002
Inventory	$	80,358	$	81,761

4. Property, Plant and Equipment, Net

Property, plant and equipment, net is comprised of the following:

	March 31,		December 31,
(in thousands)	2024		2023
Compression equipment, facilities and other fleet assets	$	3,377,588	$	3,326,919
Land and buildings		31,019		30,169
Transportation and shop equipment		100,725		100,474
Computer hardware and software		77,705		77,532
Other		5,779		5,678
Property, plant and equipment		3,592,816		3,540,772
Accumulated depreciation		(1,260,807)		(1,238,790)
Property, plant and equipment, net	$	2,332,009	$	2,301,982

5. Investments in Unconsolidated Affiliates

Investments in which we are deemed to exert significant influence, but not control, are accounted for using the equity method of accounting, except in cases where the fair value option is elected. For such investments where we have elected the fair value option, the election is irrevocable and is applied on an investment–by–investment basis at initial recognition.

In April 2022, we agreed to acquire for cash a 25% equity interest in ECOTEC, a company specializing in methane emissions detection, monitoring and management. We have elected the fair value option to account for this investment, and during the three months ended March 31, 2023, we recognized an unrealized loss of $0.3 million related to the change in fair value of our investment (see Note 14 (“Fair Value Measurements”)). Changes in the fair value of this investment are recognized in other (income) expense, net in our consolidated statements of operations. As of March 31, 2024, our ownership interest in ECOTEC is 25%, which is included in other assets in our consolidated balance sheets.

10

Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

For ownership interests that are not accounted for under the equity method and that do not have readily determinable fair values, we have elected the fair value measurement alternative to record these investments at cost minus impairment, if any, including adjustments for observable price changes in orderly transactions for an identical or similar investment of the same issuer. Investments in equity securities measured using the fair value measurement alternative are reviewed for impairment or observable price changes in orderly transactions each reporting period.

In November 2023, we agreed to serve as the lead investor in a series A preferred financing round for Ionada, a global carbon capture technology company committed to reducing GHG emissions and creating a sustainable future. Ionada has developed a post-combustion carbon capture solution to reduce carbon dioxide emissions from various small to mid-sized industrial emitters in the energy, marine and e-fuels industries, among others. We have elected the fair value measurement alternative to account for this investment (see Note 14 (“Fair Value Measurements”)). Adjustments to the carrying value are recognized in other (income) expense, net in our condensed consolidated statements of operations. Our initial investment in Ionada was $3.8 million and as of March 31, 2024, our fully diluted ownership interest in Ionada is 10%, which is included in other assets in our consolidated balance sheets. Subject to certain conditions, our ownership interest will increase to 24% over the next two years.

6. Long-Term Debt

Long–term debt is comprised of the following:

(in thousands)	March 31, 2024		December 31, 2023
Credit Facility	$	268,500	$	287,025
6.25% senior notes due April 2028:
Principal outstanding		800,000		800,000
Unamortized debt premium		8,023		8,524
Unamortized debt issuance costs		(6,647)		(7,081)
		801,376		801,443
6.875% senior notes due April 2027:
Principal outstanding		500,000		500,000
Unamortized debt issuance costs		(3,310)		(3,599)
		496,690		496,401
Long-term debt	$	1,566,566	$	1,584,869

As of March 31, 2024, there were $3.8 million letters of credit outstanding under the Credit Facility and the applicable margin on borrowings outstanding was 2.2%. The weighted average annual interest rate on the outstanding balance under the Credit Facility was 7.8% and 7.7% at March 31, 2024 and December 31, 2023, respectively. We incurred $0.4 million and $0.5 million of commitment fees on the daily unused amount of the Credit Facility during the three months ended March 31, 2024 and 2023, respectively.

As of March 31, 2024, we were in compliance with all covenants under our Credit Facility agreement. Additionally, all undrawn capacity on our Credit Facility was available for borrowings as of March 31, 2024.

11

Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

Amended and Restated Credit Agreement

On May 16, 2023, we amended and restated our Credit Facility to, among other things:

● extend the maturity date of the Credit Facility from November 8, 2024 to May 16, 2028 (or December 2, 2026 or December 3, 2027 if any portion of 2027 Notes and 2028 Notes, respectively, remain outstanding at such date);

● change the referenced rate from LIBOR to SOFR so that borrowings under the Credit Facility bear interest at, based on our election, either a base rate or SOFR, plus an applicable margin; and

● increase the portion of the Credit Facility available for the issuance of swing line loans from $50.0 million to $75.0 million.

During the second quarter of 2023, we incurred $6.0 million in transaction costs related to the Amended and Restated Credit Agreement, which were included in other assets in our condensed consolidated balance sheets and are being amortized over the remaining term of the Credit Facility. In addition, during the second quarter of 2023, we wrote off $1.0 million of unamortized deferred financing costs as a result of the Amended and Restated Credit Agreement, which was recorded to interest expense in our condensed consolidated statements of operations.

7. Commitments and Contingencies

Insurance Matters

Our business can be hazardous, involving unforeseen circumstances such as uncontrollable flows of natural gas or well fluids and fires or explosions. As is customary in our industry, we review our safety equipment and procedures and carry insurance against some, but not all, risks of our business. Our insurance coverage includes property damage, general liability and commercial automobile liability and other coverage we believe is appropriate. We believe that our insurance coverage is customary for the industry and adequate for our business, however, losses and liabilities not covered by insurance would increase our costs.

Additionally, we are substantially self–insured for workers’ compensation and employee group health claims in view of the relatively high per–incident deductibles we absorb under our insurance arrangements for these risks. Losses up to the deductible amounts are estimated and accrued based upon known facts, historical trends and industry averages. We are also self–insured for property damage to our offshore assets.

Tax Matters

We are subject to a number of state and local taxes that are not income–based. As many of these taxes are subject to audit by the taxing authorities, it is possible that an audit could result in additional taxes due. We accrue for such additional taxes when we determine that it is probable that we have incurred a liability and we can reasonably estimate the amount of the liability. As of March 31, 2024 and December 31, 2023, we had $4.1 million and $3.9 million, respectively, accrued for the outcomes of non–income–based tax audits. We do not expect that the ultimate resolutions of these audits will result in a material variance from the amounts accrued. We do not accrue for unasserted claims for tax audits unless we believe the assertion of a claim is probable, it is probable that it will be determined that the claim is owed and we can reasonably estimate the claim or range of the claim. We believe the likelihood is remote that the impact of potential unasserted claims from non–income–based tax audits could be material to our consolidated financial position, but it is possible that the resolution of future audits could be material to our consolidated results of operations or cash flows.

During the years ended December 31, 2022 and 2021, certain of our sales and use tax audits advanced from the audit review phase to the contested hearing phase. As of March 31, 2024 and December 31, 2023, we accrued $0.6 million for these audits.

12

Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

Litigation and Claims

In the ordinary course of business, we are involved in various pending or threatened legal actions. While we are unable to predict the ultimate outcome of these actions, we believe that any ultimate liability arising from any of these actions will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to pay dividends. However, because of the inherent uncertainty of litigation and arbitration proceedings, we cannot provide assurance that the resolution of any particular claim or proceeding to which we are a party will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to pay dividends.

8. Stockholders’ Equity

Share Repurchase Program

On April 27, 2023, our Board of Directors authorized a share repurchase program that allowed us to repurchase up to $50.0 million of outstanding common stock. Under the Share Repurchase Program, shares of our common stock may be repurchased periodically, including in the open market, privately negotiated transactions, or otherwise in accordance with applicable federal securities laws, at any time. On April 25, 2024, our Board of Directors approved an extension of the Share Repurchase Program upon expiry of the current authorization on April 27, 2024, for an additional twenty-four-month period. Through March 31, 2024, the Company had repurchased 833,346 common shares at an average price of $12.11 per share for an aggregate of $10.1 million.  In connection with the extension, the Board of Directors replenished the amount of shares authorized for repurchase under the Share Repurchase Program, resulting in available capacity of $50.0 million. The actual timing, manner, number, and value of shares repurchased under the program will be determined by us at our discretion.

The following table summarizes shares repurchased under the Share Repurchase Program:

	Three Months Ended
(dollars in thousands, except per share amounts)	March 31, 2024
Total cost of shares repurchased	$	1,230
Average price per share	$	14.83
Total number of shares repurchased		82,972

Cash Dividends

The following table summarizes our dividends declared and paid in each of the quarterly periods of 2024 and 2023:

	Dividends per
(dollars in thousands, except per share amounts)	Common Share		Dividends Paid
2024
Q1	$	0.165	$	26,000
2023
Q4	$	0.155	$	24,190
Q3		0.155		24,250
Q2		0.150		23,504
Q1		0.150		23,852

On April 25, 2024, our Board of Directors declared a quarterly dividend of $0.165 per share of common stock to be paid on May 14, 2024 to stockholders of record at the close of business on May 7, 2024.

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Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

9. Revenue from Contracts with Customers

The following table presents our revenue from contracts with customers by segment and disaggregated by revenue source:

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Contract operations:
0 ― 1,000 horsepower per unit	$	45,327	$	39,954
1,001 ― 1,500 horsepower per unit		95,670		81,807
Over 1,500 horsepower per unit		81,865		65,714
Other (1)		189		270
Total contract operations revenue (2)		223,051		187,745
Aftermarket services:
Services		25,438		21,249
OTC parts and components sales		19,999		20,840
Total aftermarket services revenue (3)		45,437		42,089
Total revenue	$	268,488	$	229,834

(1) Primarily relates to fees associated with owned non-compression equipment.

(2) Includes $1.1 million and $0.8 million for the three months ended March 31, 2024 and 2023, respectively, related to billable maintenance on owned compressors that was recognized at a point in time. All other contract operations revenue is recognized over time.

(3) Services revenue within aftermarket services is recognized over time. OTC parts and components sales revenue is recognized at a point in time.

See Note 16 (“Segment Information”) for further information on segments.

Performance Obligations

As of March 31, 2024, we had $569.7 million of remaining performance obligations related to our contract operations segment, which will be recognized through 2029 as follows:

(in thousands)	2024		2025		2026		2027		2028		2029		Total
Remaining performance obligations	$	263,793	$	184,333	$	98,640	$	15,076	$	7,526	$	342	$	569,710

We do not disclose the aggregate transaction price for the remaining performance obligations for aftermarket services as there are no contracts with customers with an original contract term that is greater than one year.

Contract Assets and Liabilities

Contract Assets

As March 31, 2024 and December 31, 2023, our receivables from contracts with customers, net of allowance for credit losses, were $95.9 million and $119.7 million, respectively.

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Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

Allowance for Credit Losses

Our allowance for credit losses balance changed as follows during the three months ended March 31, 2024:

(in thousands)
Balance at beginning of period	$	587
Benefit from credit losses		(75)
Write-offs charged against allowance		(16)
Balance at end of period	$	496

Contract Liabilities

Freight billings to customers for the transport of compression assets, customer–specified modifications of compression assets and milestone billings on aftermarket services often result in a contract liability. As of March 31, 2024 and December 31, 2023, our contract liabilities were $7.2 million and $7.0 million, respectively.

During the three months ended March 31, 2024, we deferred revenue of $3.1 million and recognized $2.9 million as revenue. The revenue recognized during the period primarily related to freight billings and milestone billings on aftermarket services.

10. Long-Lived and Other Asset Impairment

We review long–lived assets, including property, plant and equipment and identifiable intangibles that are being amortized, for impairment whenever events or changes in circumstances, including the removal of compressors from our active fleet, indicate that the carrying amount of an asset may not be recoverable.

Compression Fleet

We periodically review the future deployment of our idle compression assets for units that are not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on these reviews, we determine that certain idle compressors should be retired from the active fleet. The retirement of these units from the active fleet triggers a review of these assets for impairment and as a result of our review, we may record an asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit is estimated based on the expected net sale proceeds compared to other fleet units we recently sold, a review of other units recently offered for sale by third parties or the estimated component value of the equipment we plan to use.

In connection with our review of our idle compression assets, we evaluate for impairment idle units that were culled from our fleet in prior years and are available for sale. Based on that review, we may reduce the expected proceeds from disposition and record additional impairment to reduce the book value of each unit to its estimated fair value.

The following table presents the results of our compression fleet impairment review as recorded in our contract operations segment:

	Three Months Ended
	March 31,
(dollars in thousands)	2024		2023
Idle compressors retired from the active fleet		25		30
Horsepower of idle compressors retired from the active fleet		14,000		14,000
Impairment recorded on idle compressors retired from the active fleet	$	2,568	$	2,569

See Note 14 (“Fair Value Measurements”) for further details on fair value accounting.

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Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

11. Restructuring Charges

During the first quarter of 2023, a plan to further streamline our organization and more fully align our teams to improve our customer service and profitability was approved by management. While we did not incur restructuring charges during the three months ended March 31, 2024, we expect to incur additional restructuring charges of $0.1 million related to these restructuring activities.

The following table presents restructuring charges incurred by segment during the three months ended March 31, 2023:

	Contract		Aftermarket
(in thousands)	Operations		Services		Other(1)		Total
Organizational restructuring	$	203	$	—	$	844	$	1,047
Total restructuring charges	$	203	$	—	$	844	$	1,047

(1) Represents expense incurred within our corporate function and not directly attributable to our segments.

The following table presents restructuring charges incurred by cost type:

	Three Months Ended
(in thousands)	March 31, 2024
Organizational Restructuring
Severance costs	$	789
Consulting costs		258
Total restructuring costs	$	1,047

12. Income Taxes

Valuation Allowance

The amount of our deferred tax assets considered realizable could be adjusted if projections of future taxable income are reduced or objective negative evidence in the form of a three–year cumulative loss is present or both. Should we no longer have a level of sustained profitability, excluding nonrecurring charges, we will have to rely more on our future projections of taxable income to determine if we have an adequate source of taxable income for the realization of our deferred tax assets, namely net operating loss, interest expense limitation and tax credit carryforwards. This may result in the need to record a valuation allowance against all or a portion of our deferred tax assets.

Effective Tax Rate

The year-to-date effective tax rate for the three months ended March 31, 2024 differed significantly from our statutory rate primarily due to state taxes, unrecognized tax benefits and the limitation on executive compensation offset by the benefit from equity-settled long term incentive compensation.

Unrecognized Tax Benefits

As of March 31, 2024, we believe it is reasonably possible that $3.3 million of our unrecognized tax benefits, including penalties, interest and discontinued operations, will be reduced prior to March 31, 2025 due to the settlement of audits or the expiration of statutes of limitations or both. However, due to the uncertain and complex application of the tax regulations, it is possible that the ultimate resolution of these matters may result in liabilities that could materially differ from this estimate.

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Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

13. Earnings Per Common Share

Basic earnings per common share is computed using the two–class method, which is an earnings allocation formula that determines earnings per share for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. Under the two–class method, basic earnings per common share is determined by dividing net income, after deducting amounts allocated to participating securities, by the weighted average number of common shares outstanding for the period. Participating securities include unvested restricted stock and stock–settled restricted stock units that have nonforfeitable rights to receive dividends or dividend equivalents, whether paid or unpaid. During periods of net loss, only distributed earnings (dividends) are allocated to participating securities, as participating securities do not have a contractual obligation to participate in our undistributed losses.

Diluted earnings per common share is computed using the weighted average number of common shares outstanding adjusted for the incremental common stock equivalents attributed to outstanding performance–based restricted stock units and stock to be issued pursuant to our ESPP unless their effect would have been anti–dilutive.

The following table shows the calculation of net income attributable to common stockholders, which is used in the calculation of basic and diluted earnings per common share, potential shares of common stock that were included in computing diluted earnings per common share and the potential shares of common stock issuable that were excluded from computing diluted earnings per common share as their inclusion would have been anti–dilutive:

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Net income	$	40,532	$	16,485
Less: Allocation of earnings to participating securities		(748)		(735)
Net income attributable to common stockholders	$	39,784	$	15,750
Less: Allocation of earnings to cash or share settled restricted stock units		(85)		—
Diluted net income attributable to common stockholders	$	39,699	$	15,750
Weighted average common shares outstanding used in basic earnings per common share		154,187		154,116
Effect of dilutive securities:
Performance-based restricted stock units		310		162
ESPP shares		4		3
Weighted average common shares outstanding used in diluted earnings per common share		154,501		154,281

14. Fair Value Measurements

Assets and Liabilities Measured at Fair Value on a Recurring Basis

As of March 31, 2024, we owned a 25% equity interest in ECOTEC (see Note 5 (“Investments in Unconsolidated Affiliates”)). We have elected the fair value option to account for this investment. The fair value determination of this investment primarily consisted of unobservable inputs, which creates uncertainty in the measurement of fair value as of the reporting date. The significant unobservable inputs used in the fair value measurement, which was valued through an average of an income approach (discounted cash flow method) and a market approach (guideline public company method), are the WACC and the revenue multiples. Significant increases (decreases) in these inputs in isolation would result in a significantly higher (lower) fair value measurement. As of March 31, 2024, the fair value of our investment in ECOTEC was $14.9 million.

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Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

This fair value measurement is classified as Level 3. The significant unobservable inputs are as follows:

	Significant	Three Months Ended			Three Months Ended
	Unobservable	March 31, 2024			March 31, 2023
	Inputs	Range	Median		Range	Median
Valuation technique:
Discounted cash flow	WACC	0.4% - 20.0%		13.5%	0.0% - 22.1%		11.3%
Guideline public company	Revenue multiple	1.5x - 7.2x		3.8x	1.7x - 8.0x		3.9x

The reconciliation of changes in the fair value of our investment in ECOTEC is as follows:

	Three Months Ended
	March 31,
(in thousands)		2024		2023
Balance at beginning of period	$	14,905	$	12,803
Purchases of equity interests		—		2,000
Unrealized loss (1)		—		(254)
Balance at end of period	$	14,905	$	14,549

(1) Included in other expense (income), net in our unaudited condensed consolidated statement of operations.

See Note 5 (“Investments in Unconsolidated Affiliates”) for further details.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Investment in Ionada

As of March 31, 2024, we had a fully diluted ownership equity interest in Ionada of 10% (see Note 5 (“Investments in Unconsolidated Affiliates”)). We have elected the fair value measurement alternative to account for this investment. As of March 31, 2024, the carrying value of our investment in Ionada was $4.3 million.

The reconciliation of changes in the carrying value of our investment in Ionada is as follows:

	Three Months Ended
	March 31,
(in thousands)	2024
Balance at beginning of period	$	4,205
Purchases of equity interests		—
Transaction costs capitalized as investment activity		57
Cost basis		4,262
Adjustments		—
Carrying value	$	4,262

Subject to certain contractual conditions, we will invest, on the same terms and conditions as the initial investment, $1.2 million on November 1, 2024, $1.3 million on November 1, 2025, and $4.8 million prior to July 1, 2026, for a fully diluted ownership interest of 12%, 15% and 24%, respectively.

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Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

Compressors

During the three months ended March 31, 2024, we recorded nonrecurring fair value measurements related to our idle compressors. Our estimate of the compressors’ fair value was primarily based on the expected net sale proceeds compared with other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use. We discounted the expected proceeds, net of selling and other carrying costs, using a weighted average disposal period of four years. These fair value measurements are classified as Level 3. The fair value of our compressors impaired as of March 31, 2024 and December 31, 2023 was as follows:

	March 31, 2024		December 31, 2023
(in thousands)
Impaired compressors	$	263	$	1,423

The significant unobservable inputs used to develop the above fair value measurements were weighted by the relative fair value of the compressors being measured. Additional quantitative information related to our significant unobservable inputs follows:

	Range	Weighted Average (1)
Estimated net sale proceeds:
As of March 31, 2024	$0 - $211 per horsepower	$50 per horsepower
As of December 31, 2023	$0 - $294 per horsepower	$50 per horsepower

(1) Calculated based on an estimated discount for market liquidity 30% and 33% as of March 31, 2024 and December 31, 2023, respectively.

See Note 10 (“Long-Lived and Other Asset Impairments”) for further details.

Other Financial Instruments

The carrying amounts of our cash, accounts receivable and accounts payable approximate fair value due to the short–term nature of these instruments.

The carrying amount of borrowings outstanding under our Credit Facility approximates fair value due to the variable interest rate. The measurement of the fair value of these outstanding borrowings is a Level 3 measurement.

The fair value of our fixed rate debt is estimated using yields observable in active markets, which are Level 2 inputs, and was as follows:

	March 31, 2024		December 31, 2023
(in thousands)
Carrying amount of fixed rate debt (1)	$	1,298,066	$	1,297,844
Fair value of fixed rate debt		1,294,000		1,289,000

(1) Carrying amounts are shown net of unamortized premium and deferred financing costs. See Note 6 (“Long-Term Debt”).

15. Related Party Transactions

From August 2019 to present, our Board of Directors has included a member affiliated with our customer Hilcorp or its subsidiaries or affiliates. Revenue from Hilcorp and affiliates was $10.5 million and $9.1 million during the three months ended March 31, 2024 and 2023, respectively. Accounts receivable, net due from Hilcorp and affiliates was $3.6 million and $3.8 million as of March 31, 2024 and December 31, 2023, respectively.

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Archrock, Inc.

Notes to Condensed Consolidated Financial Statements (continued)

16. Segment Information

We manage our business segments primarily based on the type of product or service provided. We have two segments that we operate within the U.S.: contract operations and aftermarket services. Our contract operations segment primarily provides natural gas compression services to meet specific customer requirements. Our aftermarket services segment provides a full range of services to support the compression needs of customers, from parts sales and normal maintenance services to full operation of a customer’s owned assets.

We evaluate the performance of our segments based on gross margin, defined as revenue less cost of sales (excluding depreciation and amortization) for each segment. Segment revenue includes only sales to external customers.

Summarized financial information for our reporting segments is shown below:

	Contract		Aftermarket
(in thousands)	Operations		Services		Total
Three months ended March 31, 2024
Revenue	$	223,051	$	45,437	$	268,488
Gross margin		145,308		10,437		155,745
Three months ended March 31, 2023
Revenue	$	187,745	$	42,089	$	229,834
Gross margin		108,263		8,181		116,444

The following table reconciles total gross margin to income before income taxes:

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Total gross margin	$	155,745	$	116,444
Less:
Selling, general and administrative		31,665		26,425
Depreciation and amortization		42,835		40,181
Long-lived and other asset impairment		2,568		2,569
Restructuring charges		—		1,047
Interest expense		27,334		26,581
Gain on sale of assets, net		(2,381)		(3,605)
Other (income) expense, net		139		603
Income before income taxes	$	53,585	$	22,643

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited Financial Statements and the notes thereto included in this Form 10-Q and in conjunction with our 2023 Form 10-K.

OVERVIEW

We are an energy infrastructure company with a pure–play 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 in two business segments: contract operations and aftermarket services. Our contract operations services primarily include 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.

Operating Highlights

	Three Months Ended
	March 31,
(horsepower in thousands)	2024		2023
Total available horsepower (at period end)(1)	3,780		3,729
Total operating horsepower (at period end)(2)	3,593		3,504
Average operating horsepower	3,606		3,475
Horsepower utilization:
Spot (at period end)	95	%	94	%
Average	96	%	93	%

(1) Defined as idle and operating horsepower. Includes new compressors completed by third party manufacturers that have been delivered to us.

(2) Defined as horsepower that is operating under contract and horsepower that is idle but under contract and generating revenue such as standby revenue.

Non–GAAP Financial Measures

Management uses a variety of financial and operating metrics to analyze our performance. These metrics are significant factors in assessing our operating results and profitability and include the non–GAAP financial measure of gross margin.

We define gross margin as total revenue less cost of sales (excluding depreciation and amortization). Gross margin is included as a supplemental disclosure because it is a primary measure used by our management to evaluate the results of revenue and cost of sales (excluding depreciation and amortization), which are key components of our operations. We believe gross margin is important because it focuses on the current operating performance of our operations and excludes the impact of the prior historical costs of the assets acquired or constructed that are utilized in those operations, the indirect costs associated with our SG&A activities, our financing methods and income taxes. In addition, depreciation and amortization may not accurately reflect the costs required to maintain and replenish the operational usage of our assets and therefore may not portray the costs of current operating activity. As an indicator of our operating performance, gross margin should not be considered an alternative to, or more meaningful than, net income (loss) as determined in accordance with GAAP. Our gross margin may not be comparable to a similarly–titled measure of other entities because other entities may not calculate gross margin in the same manner.

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Gross margin has certain material limitations associated with its use as compared to net income. These limitations are primarily due to the exclusion of SG&A, depreciation and amortization, impairments, restructuring charges, interest expense, gain on sale of assets, net, other expense (income), net and provision for income taxes. Because we intend to finance a portion of our operations through borrowings, interest expense is a necessary element of our costs and our ability to generate revenue. Additionally, because we use capital assets, depreciation expense is a necessary element of our costs and our ability to generate revenue and SG&A is necessary to support our operations and required corporate activities. To compensate for these limitations, management uses this non–GAAP measure as a supplemental measure to other GAAP results to provide a more complete understanding of our performance.

The following table reconciles net income to gross margin:

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Net income	$	40,532	$	16,485
Selling, general and administrative		31,665		26,425
Depreciation and amortization		42,835		40,181
Long-lived and other asset impairment		2,568		2,569
Restructuring charges		—		1,047
Interest expense		27,334		26,581
Gain on sale of assets, net		(2,381)		(3,605)
Other (income) expense, net		139		603
Provision for income taxes		13,053		6,158
Gross margin	$	155,745	$	116,444

RESULTS OF OPERATIONS

Summary of Results

Revenue was $268.5 million and $229.8 million during the three months ended March 31, 2024 and 2023, respectively. The increase in consolidated revenue was primarily due to increased revenue from both our contract operations business and aftermarket services business during the three months ended March 31, 2024. See “Contract Operations” and “Aftermarket Services” below for further details.

Net income was $40.5 million and $16.5 million during the three months ended March 31, 2024 and 2023, respectively. The increase was primarily driven by higher gross margin from both our contract operations business and aftermarket services business. These changes were partially offset by increases in SG&A and depreciation and amortization expense, and a decrease in the gain on sale of assets.

Three Months Ended March 31, 2024 Compared to Three Months Ended March 31, 2023

Contract Operations

	Three Months Ended
	March 31,						Increase
(dollars in thousands)	2024			2023			(Decrease)
Revenue	$	223,051		$	187,745		19	%
Cost of sales (excluding depreciation and amortization)		77,743			79,482		(2)	%
Gross margin	$	145,308		$	108,263		34	%
Gross margin percentage (1)		65	%		58	%	7	%

(1) Defined as gross margin divided by revenue.

Revenue in our contract operations business increased primarily due to higher rates and an increase in average operating horsepower for contract compression in response to market conditions.

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The decrease in cost of sales was primarily due to a $4.8 million decrease in startup expenses resulting from average horsepower utilization for the fleet at record levels as well as fewer unit stops. This decrease was partially offset by a $1.5 million increase in total employee compensation expense and a $0.8 million increase in parts expense.

Aftermarket Services

	Three Months Ended
	March 31,						Increase
(dollars in thousands)	2024			2023			(Decrease)
Revenue	$	45,437		$	42,089		8	%
Cost of sales (excluding depreciation and amortization)		35,000			33,908		3	%
Gross margin	$	10,437		$	8,181		28	%
Gross margin percentage		23	%		19	%	4	%

Revenue in our aftermarket services business increased primarily due to higher levels of service activities driven by an increase in customer demand, partially offset by a decrease in part sales.

Gross margin increased in our aftermarket services business as a result of increased revenue which exceeded the increase in cost of sales due to differences in the scope, timing and type of services performed.

Costs and Expenses

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Selling, general and administrative	$	31,665	$	26,425
Depreciation and amortization		42,835		40,181
Long-lived and other asset impairment		2,568		2,569
Restructuring charges		—		1,047
Interest expense		27,334		26,581
Gain on sale of assets, net		(2,381)		(3,605)
Other expense (income), net		139		603

Selling, general and administrative. The increase in SG&A includes a $3.4 million increase in long-term incentive compensation expense, a $0.7 million increase in software and maintenance expense, a $0.3 million increase in short-term incentive compensation expense and a $0.3 million reduction in benefit from credit losses, partially offset by a $0.5 million decrease in professional expense.

Depreciation and amortization. The increase in depreciation and amortization expense was primarily due to fixed assets additions and accelerated depreciation associated with certain assets. These increases were partially offset by a decrease in depreciation expense associated with assets reaching the end of their depreciable lives, the impact of compression and other asset sales, and long-lived asset impairments.

23

Long-lived and other asset impairment. We periodically review the future deployment of our idle compressors for units that are not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. We also evaluate for impairment our idle units that have been culled from our compression fleet in prior years and are available for sale. During the three months ended March 31, 2024 and 2023, we recognized $2.6 million of impairment charges to write down these compressors to their fair value. See Note 10 (“Long-Lived Asset and Other Impairments”) for further details on these impairment charges. The following table presents the results of our compression fleet impairment review, as recorded in our contract operations segment:

	Three Months Ended
	March 31,
(dollars in thousands)	2024		2023
Idle compressors retired from the active fleet		25		30
Horsepower of idle compressors retired from the active fleet		14,000		14,000
Impairment recorded on idle compressors retired from the active fleet	$	2,568	$	2,569

Restructuring charges. Restructuring charges of $1.0 million during the three months ended March 31, 2023 consisted of severance and consulting costs related to our restructuring activities. See Note 11 (“Restructuring Charges”) for further details on these restructuring charges.

Interest expense. The increase in interest expense was due to a higher average outstanding balance of long–term debt, and an increase in interest rates.

Gain on sale of assets, net. The decrease in gain on sale of assets was primarily due to gains of $2.2 million on compression asset sales during the three months ended March 31, 2024, compared to gains of $3.3 million on compression asset sales during the three months ended March 31, 2023.

Provision for Income Taxes

The increase in provision for income taxes was primarily due to the tax effect of the increase in book income and the limitation on executive compensation offset by the benefit from equity-settled long term incentive compensation during the three months ended March 31, 2024 compared with the three months ended March 31, 2023.

	Three Months Ended
	March 31,						Increase
(dollars in thousands)	2024			2023			(Decrease)
Provision for income taxes	$	13,053		$	6,158		112	%
Effective tax rate		24	%		27	%	(3)	%

LIQUIDITY AND CAPITAL RESOURCES

Overview

Our ability to fund operations, finance capital expenditures and pay dividends depends on the levels of our operating cash flows and access to the capital and credit markets. Our primary sources of liquidity are cash flows generated from our operations and our borrowing availability under our Credit Facility. Our cash flow is affected by numerous factors including prices and demand for our services, oil and natural gas exploration and production spending, conditions in the financial markets and other factors. We have no near-term maturities and believe that our operating cash flows and borrowings under the Credit Facility will be sufficient to meet our future liquidity needs.

We may from time to time seek to retire or purchase our outstanding debt through cash purchases and/or exchanges for equity or debt securities in open market purchases, privately negotiated transactions or otherwise. Such repurchases or exchanges, if any, may be material, will be upon terms and prices as we may determine and will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors.

24

Cash Requirements

Our contract operations business is capital intensive, requiring significant investment to maintain and upgrade existing operations. Our capital spending is primarily dependent on the demand for our contract operations services and the availability of the type of compression equipment required for us to provide those contract operations services to our customers. Our capital requirements have consisted primarily of, and we anticipate will continue to consist of, the following:

• operating expenses, namely employee compensation and benefits and inventory and lube oil purchases;

• growth capital expenditures;

• maintenance capital expenditures;

• interest on our outstanding debt obligations; and

• dividend payments to our stockholders.

Capital Expenditures

Growth Capital Expenditures. The majority of our growth capital expenditures are related to the acquisition cost of new compressors when our idle equipment cannot be reconfigured to economically fulfill a project’s requirements and the new compressor is expected to generate economic returns that exceed our cost of capital over the compressor’s expected useful life. In addition to newly-acquired compressors, growth capital expenditures include the upgrading of major components on an existing compression package where the current configuration of the compression package is no longer in demand and the compressor is not likely to return to an operating status without the capital expenditures. These expenditures substantially modify the operating parameters of the compression package such that it can be used in applications for which it previously was not suited.

Maintenance Capital Expenditures. Maintenance capital expenditures are related to major overhauls of significant components of a compression package, such as the engine, compressor and cooler, which return the components to a like-new condition, but do not modify the application for which the compression package was designed.

Projected Capital Expenditures. While market activity continues to be strong, we currently anticipate reduced capital expenditures in 2024 compared to 2023 which supports free cash flow generation after dividends, and plan to spend approximately $290 million to $300 million in capital expenditures during 2024, primarily consisting of approximately $190 million for growth capital expenditures and approximately $80 million to $85 million for maintenance capital expenditures.

Dividends

On April 25, 2024, our Board of Directors declared a quarterly dividend of $0.165 per share of common stock to be paid on May 14, 2024 to stockholders of record at the close of business on May 7, 2024. Any future determinations to pay cash dividends to our stockholders will be at the discretion of our Board of Directors and will be dependent upon our financial condition, results of operations and credit and loan agreements in effect at that time and other factors deemed relevant by our Board of Directors.

25

Share Repurchase Program

On April 27, 2023, our Board of Directors authorized a share repurchase program that allowed us to repurchase up to $50.0 million of outstanding common stock. Under the Share Repurchase Program, shares of our common stock may be repurchased periodically, including in the open market, privately negotiated transactions, or otherwise in accordance with applicable federal securities laws, at any time. On April 25, 2024, our Board of Directors approved an extension of the Share Repurchase Program upon expiry of the current authorization on April 27, 2024, for an additional twenty-four-month period. Through March 31, 2024, the Company had repurchased 833,346 common shares at an average price of $12.11 per share for an aggregate of $10.1 million.  In connection with the extension, the Board of Directors replenished the amount of shares authorized for repurchase under the Share Repurchase Program, resulting in available capacity of $50.0 million. The actual timing, manner, number, and value of shares repurchased under the program will be determined by us at our discretion.

The following table summarizes shares repurchased under the Share Repurchase Program during the three months ended March 31, 2024:

	Three Months Ended
(dollars in thousands, except per share amounts)	March 31, 2024
Total cost of shares repurchased	$	1,230
Average price per share	$	14.83
Total number of shares repurchased		82,972

Sources of Cash

Revolving Credit Facility

During the three months ended March 31, 2024 and 2023, our Credit Facility had an average debt balance of $274.6 million and $252.3 million, respectively. The weighted average annual interest rate on the outstanding balance under the Credit Facility was 7.8% and 7.7% at March 31, 2024 and December 31, 2023, respectively. As of March 31, 2024, there were $3.8 million letters of credit outstanding under the Credit Facility and the applicable margin on borrowings outstanding was 2.2%.

As of March 31, 2024, we were in compliance with all covenants under our Credit Facility. Additionally, all undrawn capacity on our Credit Facility was available for borrowings as of March 31, 2024.

Cash Flows

Our cash flows, as reflected in our unaudited condensed consolidated statements of cash flows, are summarized below:

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Net cash provided by (used in):
Operating activities	$	137,702	$	87,856
Investing activities		(85,923)		(57,666)
Financing activities		(51,962)		(28,705)
Net increase (decrease) in cash and cash equivalents	$	(183)	$	1,485

26

Operating Activities

The increase in net cash provided by operating activities was primarily due to increased cash inflows of $39.0 million from gross margin, excluding deferred revenue recognized in earnings and amortization of freight and mobilization charges, changes of $12.2 million in accounts receivable due to increased cash receipts from customers, of $6.6 million in deferred income tax provision due to increased usage of tax attributes and of $5.4 million of inventory as a result of improvement in the lead time for parts. Partially offsetting these increases was a decrease in accounts payable and other liabilities of $4.3 million.

Investing Activities

The increase in net cash used in investing activities was primarily due to a $15.4 million increase in capital expenditures and a $14.9 million decrease in proceeds from the sale of property, plant and equipment, partially offset by a $1.9 million decrease in investments in non-consolidated affiliates.

Financing Activities

The increase in net cash used in financing activities was primarily due to a $17.3 million increase in net repayments of long-term debt, a $2.7 million increase in taxes paid related to net share settlement of equity awards, a $2.0 million increase in dividends paid to stockholders and a $1.2 million increase in common stock purchased under the Share Repurchase Program.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to market risks associated with changes in the variable interest rate of our Credit Facility. A 1% increase in the effective interest rate on our Credit Facility’s outstanding balance at March 31, 2024 would have resulted in an annual increase in our interest expense of $2.7 million.

ITEM 4. CONTROLS AND PROCEDURES

This Item 4 includes information concerning the controls and controls evaluation referred to in the certifications of our Chief Executive Officer and Chief Financial Officer required by Rule 13a–14 of the Exchange Act included in this Form 10–Q as Exhibits 31.1 and 31.2.

Management’s Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) are designed to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that such information is accumulated and communicated to management to allow timely decisions regarding required disclosures.

As of the end of the period covered by this Quarterly Report on Form 10-Q, our principal executive officer and principal financial officer evaluated the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act), which are designed to provide reasonable assurance that we are able to record, process, summarize and report the information required to be disclosed in our reports under the Exchange Act within the time periods specified in the rules and forms of the SEC. Based on the evaluation, as of March 31, 2024 our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective to provide reasonable assurance that the information required to be disclosed in reports that we file or submit under the Exchange Act is accumulated and communicated to management, and made known to our principal executive officer and principal financial officer, on a timely basis to ensure that it is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

27

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Exchange Act Rules 13a–15(f) and 15d–15(f)) during the last fiscal quarter that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

In the ordinary course of business, we are involved in various pending or threatened legal actions. While we are unable to predict the ultimate outcome of these actions, we believe that any ultimate liability arising from any of these actions will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to pay dividends. However, because of the inherent uncertainty of litigation and arbitration proceedings, we cannot provide assurance that the resolution of any particular claim or proceeding to which we are a party will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to pay dividends.

ITEM 1A. RISK FACTORS

There have been no material changes or updates to the risk factors previously disclosed in our Form 10–K.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES BY ISSUER AND USE OF PROCEEDS

Sales of Unregistered Securities

None

Purchase of Equity Securities by the Issuer and Affiliated Purchasers

The following table summarizes our share repurchase activity for the three months ended March 31, 2024:

					Approximate Dollar
					Value of Shares
				Total Number of	That May Yet be
		Average		Shares Purchased	Purchased Under
	Total Number	Price		as Part of Publicly	the Publicly
	of Shares	Paid per		Announced Plans	Announced Plans
(dollars in thousands, except per share amounts)	Purchased (1)	Share(2)		or Programs	or Programs
January 1, 2024 — January 31, 2024	346,568	$	15.72	82,972	$	39,910
February 1, 2024 — February 29, 2024	—		—	—		39,910
March 1, 2024 — March 31, 2024	122,384		18.27	—		39,910
Total	468,952	$	16.38	82,972

(1) Represents shares of common stock purchased from employees to satisfy tax withholding obligations in connection with the vesting of restricted stock awards and shares repurchased under the Share Repurchase Program during the period. See Note 8 (“Stockholders’ Equity”) for further details on the Share Repurchase Program.

(2) Average price paid per share includes costs associated with the repurchase, as applicable.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

28

ITEM 5. OTHER INFORMATION

Insider Trading Arrangements

During the three months ended March 31, 2024, none of our directors or officers adopted or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

29

ITEM 6. EXHIBITS

The exhibits listed below are filed or furnished as part of this report:

3.1	Composite Certificate of Incorporation of Archrock, Inc., as amended as of November 3, 2015, (incorporated by reference to Exhibit 3.3 to Archrock Inc.’s Annual Report on Form 10–K for the year ended December 31, 2015)
3.2	Fourth Amended and Restated Bylaws of Exterran Holdings, Inc., now Archrock, Inc. (incorporated by reference to Exhibit 3.1 of Archrock Inc.’s Current Report on Form 8–K filed on July 27, 2023)
10.1†	Retention Incentive Agreement, dated January 25, 2024, by and between Archrock, Inc. and D. Bradley Childers, (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on January 26, 2024)
31.1*	Certification of the Principal Executive Officer pursuant to Section 302 of the Sarbanes–Oxley Act of 2002
31.2*	Certification of the Principal Financial Officer pursuant to Section 302 of the Sarbanes–Oxley Act of 2002
32.1**	Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes–Oxley Act of 2002
32.2**	Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes–Oxley Act of 2002
101.1*	Interactive data files (formatted in Inline XBRL) pursuant to Rule 405 of Regulation S–T
104.1*	Cover page interactive data file (formatted in Inline XBRL) pursuant to Rule 406 of Regulation S–T

†      Management contract or compensatory plan or arrangement.

*      Filed herewith

**    Furnished, not filed

30

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Archrock, Inc.
By:	/s/ Douglas S. Aron
	Douglas S. Aron
	Senior Vice President and Chief Financial Officer
	(Principal Financial Officer)
By:	/s/ Donna A. Henderson
	Donna A. Henderson
	Vice President and Chief Accounting Officer
	(Principal Accounting Officer)
	May 1, 2024

31

EX-31.1

Exhibit 31.1

Certification

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, D. Bradley Childers, certify that:

1. I have reviewed this Quarterly Report on Form 10–Q of Archrock, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a–15(f) and 15d–15(f)) for the registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 1, 2024

By:	/s/ D. Bradley Childers
	Name:  D. Bradley Childers
	Title:    President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Douglas S. Aron, certify that:

1. I have reviewed this Quarterly Report on Form 10–Q of Archrock, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a–15(f) and 15d–15(f)) for the registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 1, 2024

By:	/s/ Douglas S. Aron
	Name:  Douglas S. Aron
	Title:    Senior Vice President and Chief Financial Officer
	(Principal Financial Officer)

EX-32.1

Exhibit 32.1

Certification of CEO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10–Q of Archrock, Inc. (the “Company”) for the quarter ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), D. Bradley Childers, as Chief Executive Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes–Oxley Act of 2002, that, to his knowledge:

1. the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ D. Bradley Childers

Name:  D. Bradley Childers

Title:    President and Chief Executive Officer

Date: March 1, 2024

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

Certification of CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10–Q of Archrock, Inc. (the “Company”) for the quarter ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Douglas S. Aron, as Chief Financial Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes–Oxley Act of 2002, that, to his knowledge:

1. the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Douglas S. Aron

Name:   Douglas S. Aron

Title:     Senior Vice President and Chief Financial Officer

Date: May 1, 2024

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover - shares	3 Months Ended
	Mar. 31, 2024	Apr. 24, 2024
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Commission File Number	001-33666
Entity Registrant Name	Archrock, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	74-3204509
Entity Street Address	9807 Katy Freeway
Entity Suite Number	Suite 100
Entity City	Houston
Entity State	TX
Entity Postal Zip Code	77024
City Area Code	281
Local Phone Number	836-8000
Title of each class	Common stock, $0.01 par value per share
Trading Symbol	AROC
Name of exchange on which registered	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		156,286,457
Entity Central Index Key	0001389050
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 1,155	$ 1,338
Accounts receivable, net of allowance of $496 and $587, respectively	105,295	124,069
Inventory	80,358	81,761
Other current assets	6,898	5,989
Total current assets	193,706	213,157
Property, plant and equipment, net	2,332,009	2,301,982
Operating lease right-of-use assets	14,343	14,097
Intangible assets, net	28,737	30,182
Contract costs, net	35,967	37,739
Deferred tax assets	2,847	3,192
Other assets	47,467	47,733
Non-current assets of discontinued operations	7,868	7,868
Total assets	2,662,944	2,655,950
Current liabilities:
Accounts payable, trade	48,717	61,026
Accrued liabilities	98,751	85,381
Deferred revenue	5,778	5,736
Total current liabilities	153,246	152,143
Long-term debt	1,566,566	1,584,869
Operating lease liabilities	12,364	12,271
Deferred tax liabilities	15,986	4,921
Other liabilities	24,834	22,857
Non-current liabilities of discontinued operations	7,868	7,868
Total liabilities	1,780,864	1,784,929
Commitments and contingencies (Note 7)
Equity:
Preferred stock: $0.01 par value per share, 50,000,000 shares authorized, zero issued
Common stock: $0.01 par value per share, 250,000,000 shares authorized, 165,775,863 and 164,984,401 shares issued, respectively	1,657	1,650
Additional paid-in capital	3,474,777	3,470,576
Accumulated deficit	(2,485,399)	(2,499,931)
Treasury stock: 9,489,406 and 9,020,454 common shares, at cost, respectively	(108,955)	(101,274)
Total equity	882,080	871,021
Total liabilities and equity	$ 2,662,944	$ 2,655,950

XML

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Condensed Consolidated Balance Sheets
Accounts receivable, allowance	$ 496	$ 587
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	250,000,000	250,000,000
Common stock, shares issued (in shares)	165,775,863	164,984,401
Treasury stock, common shares (in shares)	9,489,406	9,020,454

XML

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue	$ 268,488	$ 229,834
Total cost of sales (excluding depreciation and amortization)	112,743	113,390
Selling, general and administrative	31,665	26,425
Depreciation and amortization	42,835	40,181
Long-lived and other asset impairment	2,568	2,569
Restructuring charges		1,047
Interest expense	27,334	26,581
Gain on sale of assets, net	(2,381)	(3,605)
Other (income) expense, net	139	603
Income before income taxes	53,585	22,643
Provision for income taxes	13,053	6,158
Net income	$ 40,532	$ 16,485
Basic earnings per common share (in dollars per share)	$ 0.26	$ 0.10
Diluted earnings per common share (in dollars per share)	$ 0.26	$ 0.10
Weighted average common shares outstanding:
Basic (in shares)	154,187	154,116
Diluted (in shares)	154,501	154,281
Contract operations
Revenue	$ 223,051	$ 187,745
Total cost of sales (excluding depreciation and amortization)	77,743	79,482
Aftermarket services
Revenue	45,437	42,089
Total cost of sales (excluding depreciation and amortization)	$ 35,000	$ 33,908

XML

Condensed Consolidated Statements of Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock, Common	Total
Beginning balance at Dec. 31, 2022	$ 1,634	$ 3,456,777	$ (2,509,133)	$ (88,585)	$ 860,693
Beginning balance (in shares) at Dec. 31, 2022	163,439,013
Treasury stock, common shares, Beginning balance (in shares) at Dec. 31, 2022				7,810,548
Increase (Decrease) in Stockholders' Equity
Shares withheld related to net settlement of equity awards				$ (3,773)	(3,773)
Shares withheld related to net settlement of equity awards (in shares)				383,766
Cash dividends			(23,852)		(23,852)
Shares issued in ESPP	$ 1	169			170
Shares issued in ESPP (in shares)	20,251
Stock-based compensation, net of forfeitures	$ 14	3,313			3,327
Stock-based compensation, net of forfeitures (in shares)	1,444,636			13,076
Comprehensive income
Net income			16,485		16,485
Ending balance at Mar. 31, 2023	$ 1,649	3,460,259	(2,516,500)	$ (92,358)	853,050
Ending balance (in shares) at Mar. 31, 2023	164,903,900
Treasury stock, common shares, Ending balance (in shares) at Mar. 31, 2023				8,207,390
Beginning balance at Dec. 31, 2023	$ 1,650	3,470,576	(2,499,931)	$ (101,274)	$ 871,021
Beginning balance (in shares) at Dec. 31, 2023	164,984,401
Treasury stock, common shares, Beginning balance (in shares) at Dec. 31, 2023				9,020,454	9,020,454
Increase (Decrease) in Stockholders' Equity
Shares repurchased				$ (1,230)	$ (1,230)
Shares repurchased (in shares)				82,972
Shares withheld related to net settlement of equity awards				$ (6,451)	(6,451)
Shares withheld related to net settlement of equity awards (in shares)				385,980
Cash dividends			(26,000)		(26,000)
Shares issued in ESPP		244			244
Shares issued in ESPP (in shares)	17,800
Stock-based compensation, net of forfeitures	$ 7	3,957			3,964
Stock-based compensation, net of forfeitures (in shares)	773,662
Comprehensive income
Net income			40,532		40,532
Ending balance at Mar. 31, 2024	$ 1,657	$ 3,474,777	$ (2,485,399)	$ (108,955)	$ 882,080
Ending balance (in shares) at Mar. 31, 2024	165,775,863
Treasury stock, common shares, Ending balance (in shares) at Mar. 31, 2024				9,489,406	9,489,406

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Condensed Consolidated Statements of Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Condensed Consolidated Statements of Equity
Dividend declared per common stock (in dollars per share)	$ 0.165	$ 0.155	$ 0.155	$ 0.150	$ 0.150

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023
Cash flows from operating activities:
Net income	$ 40,532			$ 16,485
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	42,835			40,181
Long-lived and other asset impairment	2,568			2,569
Non-cash restructuring charges				927
Unrealized change in fair value of investment in unconsolidated affiliate				254
Inventory write-downs	199			216
Amortization of operating lease right-of-use assets	947			823
Amortization of deferred financing costs	1,193			1,288
Amortization of debt premium	(501)			(501)
Amortization of capitalized implementation costs	738			597
Stock-based compensation expense	3,964			3,327
Benefit from credit losses	(75)			(340)
Gain on sale of assets, net	(2,381)			(3,605)
Deferred income tax provision	12,460			5,881
Amortization of contract costs	5,768			5,090
Deferred revenue recognized in earnings	(2,859)			(4,476)
Changes in operating assets and liabilities:
Accounts receivable, net	19,819			7,632
Inventory	1,246			(4,131)
Other assets	(1,785)			609
Contract costs	(3,996)			(6,352)
Accounts payable and other liabilities	13,958			18,219
Deferred revenue	3,070			3,179
Other	2			(16)
Net cash provided by operating activities	137,702			87,856
Cash flows from investing activities:
Capital expenditures	(99,755)			(84,392)
Proceeds from sale of property, equipment and other assets	13,844			28,726
Proceeds from insurance and other settlements	45
Investments in unconsolidated entities	(57)			(2,000)
Net cash used in investing activities	(85,923)			(57,666)
Cash flows from financing activities:
Borrowings of long-term debt	244,525			158,850
Repayments of long-term debt	(263,050)			(160,100)
Dividends paid to stockholders	(26,000)	$ (24,190)	$ (23,504)	(23,852)
Repurchases of common stock	(1,230)
Taxes paid related to net share settlement of equity awards	(6,451)			(3,773)
Proceeds from stock issued under ESPP	244			170
Net cash used in financing activities	(51,962)			(28,705)
Net increase (decrease) in cash and cash equivalents	(183)			1,485
Cash and cash equivalents, beginning of period	1,338		$ 3,051	1,566
Cash and cash equivalents, end of period	$ 1,155	$ 1,338		$ 3,051

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Description of Business and Basis of Presentation

3 Months Ended

Mar. 31, 2024

Basis of Presentation and Significant Accounting Policies

Description of Business and Basis of Presentation

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 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 in two 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 consolidated financial statements have been prepared in accordance with the instructions to 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 2023 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 three months ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024.

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Recent Accounting Developments

3 Months Ended

Mar. 31, 2024

Recent Accounting Developments

Recent Accounting Developments

2. Recent Accounting Developments

Accounting Standards Updates Not Yet Implemented

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 evaluating the impact that the adoption of ASU 2023-09 will have on our consolidated financial statements and related disclosures.

Segment Reporting

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which will require disclosures of significant expenses for each reportable segment, as well as certain other disclosures to help investors understand how the chief operating decision maker evaluates segment expenses and operating results. ASU 2023-07 will also allow disclosure of multiple measures of segment profitability if those measures are used to allocate resources and assess performance. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, and should be applied on a retrospective basis, unless impracticable. Early adoption is permitted. We are evaluating the impact that the adoption of ASU 2023-07 will have on our consolidated financial statements and related disclosures.

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 expect that the adoption of ASU 2023-05 will have no impact on our consolidated financial statements.

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Inventory

3 Months Ended

Mar. 31, 2024

Inventory

Inventory

3. Inventory

Inventory is comprised of the following:

	March 31,		December 31,
(in thousands)	2024		2023
Parts and supplies	$	68,176	$	70,759
Work in progress		12,182		11,002
Inventory	$	80,358	$	81,761

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Property, Plant and Equipment, Net

3 Months Ended

Mar. 31, 2024

Property, Plant and Equipment, Net

Property, Plant and Equipment, net

4. Property, Plant and Equipment, Net

Property, plant and equipment, net is comprised of the following:

	March 31,		December 31,
(in thousands)	2024		2023
Compression equipment, facilities and other fleet assets	$	3,377,588	$	3,326,919
Land and buildings		31,019		30,169
Transportation and shop equipment		100,725		100,474
Computer hardware and software		77,705		77,532
Other		5,779		5,678
Property, plant and equipment		3,592,816		3,540,772
Accumulated depreciation		(1,260,807)		(1,238,790)
Property, plant and equipment, net	$	2,332,009	$	2,301,982

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Investments in Unconsolidated Affiliates

3 Months Ended

Mar. 31, 2024

Investments in Unconsolidated Affiliates

Investment in Unconsolidated Affiliate

5. Investments in Unconsolidated Affiliates

Investments in which we are deemed to exert significant influence, but not control, are accounted for using the equity method of accounting, except in cases where the fair value option is elected. For such investments where we have elected the fair value option, the election is irrevocable and is applied on an investment–by–investment basis at initial recognition.

In April 2022, we agreed to acquire for cash a 25% equity interest in ECOTEC, a company specializing in methane emissions detection, monitoring and management. We have elected the fair value option to account for this investment, and during the three months ended March 31, 2023, we recognized an unrealized loss of $0.3 million related to the change in fair value of our investment (see Note 14 (“Fair Value Measurements”)). Changes in the fair value of this investment are recognized in other (income) expense, net in our consolidated statements of operations. As of March 31, 2024, our ownership interest in ECOTEC is 25%, which is included in other assets in our consolidated balance sheets.

For ownership interests that are not accounted for under the equity method and that do not have readily determinable fair values, we have elected the fair value measurement alternative to record these investments at cost minus impairment, if any, including adjustments for observable price changes in orderly transactions for an identical or similar investment of the same issuer. Investments in equity securities measured using the fair value measurement alternative are reviewed for impairment or observable price changes in orderly transactions each reporting period.

In November 2023, we agreed to serve as the lead investor in a series A preferred financing round for Ionada, a global carbon capture technology company committed to reducing GHG emissions and creating a sustainable future. Ionada has developed a post-combustion carbon capture solution to reduce carbon dioxide emissions from various small to mid-sized industrial emitters in the energy, marine and e-fuels industries, among others. We have elected the fair value measurement alternative to account for this investment (see Note 14 (“Fair Value Measurements”)). Adjustments to the carrying value are recognized in other (income) expense, net in our condensed consolidated statements of operations. Our initial investment in Ionada was $3.8 million and as of March 31, 2024, our fully diluted ownership interest in Ionada is 10%, which is included in other assets in our consolidated balance sheets. Subject to certain conditions, our ownership interest will increase to 24% over the next two years.

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Long-Term Debt

3 Months Ended

Mar. 31, 2024

Long-Term Debt

Long-Term Debt

6. Long-Term Debt

Long–term debt is comprised of the following:

(in thousands)	March 31, 2024		December 31, 2023
Credit Facility	$	268,500	$	287,025
6.25% senior notes due April 2028:
Principal outstanding		800,000		800,000
Unamortized debt premium		8,023		8,524
Unamortized debt issuance costs		(6,647)		(7,081)
		801,376		801,443
6.875% senior notes due April 2027:
Principal outstanding		500,000		500,000
Unamortized debt issuance costs		(3,310)		(3,599)
		496,690		496,401
Long-term debt	$	1,566,566	$	1,584,869

As of March 31, 2024, there were $3.8 million letters of credit outstanding under the Credit Facility and the applicable margin on borrowings outstanding was 2.2%. The weighted average annual interest rate on the outstanding balance under the Credit Facility was 7.8% and 7.7% at March 31, 2024 and December 31, 2023, respectively. We incurred $0.4 million and $0.5 million of commitment fees on the daily unused amount of the Credit Facility during the three months ended March 31, 2024 and 2023, respectively.

As of March 31, 2024, we were in compliance with all covenants under our Credit Facility agreement. Additionally, all undrawn capacity on our Credit Facility was available for borrowings as of March 31, 2024.

Amended and Restated Credit Agreement

On May 16, 2023, we amended and restated our Credit Facility to, among other things:

● extend the maturity date of the Credit Facility from November 8, 2024 to May 16, 2028 (or December 2, 2026 or December 3, 2027 if any portion of 2027 Notes and 2028 Notes, respectively, remain outstanding at such date);

● change the referenced rate from LIBOR to SOFR so that borrowings under the Credit Facility bear interest at, based on our election, either a base rate or SOFR, plus an applicable margin; and

● increase the portion of the Credit Facility available for the issuance of swing line loans from $50.0 million to $75.0 million.

During the second quarter of 2023, we incurred $6.0 million in transaction costs related to the Amended and Restated Credit Agreement, which were included in other assets in our condensed consolidated balance sheets and are being amortized over the remaining term of the Credit Facility. In addition, during the second quarter of 2023, we wrote off $1.0 million of unamortized deferred financing costs as a result of the Amended and Restated Credit Agreement, which was recorded to interest expense in our condensed consolidated statements of operations.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies

Commitments and Contingencies

7. Commitments and Contingencies

Insurance Matters

Our business can be hazardous, involving unforeseen circumstances such as uncontrollable flows of natural gas or well fluids and fires or explosions. As is customary in our industry, we review our safety equipment and procedures and carry insurance against some, but not all, risks of our business. Our insurance coverage includes property damage, general liability and commercial automobile liability and other coverage we believe is appropriate. We believe that our insurance coverage is customary for the industry and adequate for our business, however, losses and liabilities not covered by insurance would increase our costs.

Additionally, we are substantially self–insured for workers’ compensation and employee group health claims in view of the relatively high per–incident deductibles we absorb under our insurance arrangements for these risks. Losses up to the deductible amounts are estimated and accrued based upon known facts, historical trends and industry averages. We are also self–insured for property damage to our offshore assets.

Tax Matters

We are subject to a number of state and local taxes that are not income–based. As many of these taxes are subject to audit by the taxing authorities, it is possible that an audit could result in additional taxes due. We accrue for such additional taxes when we determine that it is probable that we have incurred a liability and we can reasonably estimate the amount of the liability. As of March 31, 2024 and December 31, 2023, we had $4.1 million and $3.9 million, respectively, accrued for the outcomes of non–income–based tax audits. We do not expect that the ultimate resolutions of these audits will result in a material variance from the amounts accrued. We do not accrue for unasserted claims for tax audits unless we believe the assertion of a claim is probable, it is probable that it will be determined that the claim is owed and we can reasonably estimate the claim or range of the claim. We believe the likelihood is remote that the impact of potential unasserted claims from non–income–based tax audits could be material to our consolidated financial position, but it is possible that the resolution of future audits could be material to our consolidated results of operations or cash flows.

During the years ended December 31, 2022 and 2021, certain of our sales and use tax audits advanced from the audit review phase to the contested hearing phase. As of March 31, 2024 and December 31, 2023, we accrued $0.6 million for these audits.

Litigation and Claims

In the ordinary course of business, we are involved in various pending or threatened legal actions. While we are unable to predict the ultimate outcome of these actions, we believe that any ultimate liability arising from any of these actions will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to pay dividends. However, because of the inherent uncertainty of litigation and arbitration proceedings, we cannot provide assurance that the resolution of any particular claim or proceeding to which we are a party will not have a material adverse effect on our consolidated financial position, results of operations or cash flows, including our ability to pay dividends.

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Stockholders' Equity

3 Months Ended

Mar. 31, 2024

Stockholders' Equity

Stockholders' Equity

8. Stockholders’ Equity

Share Repurchase Program

On April 27, 2023, our Board of Directors authorized a share repurchase program that allowed us to repurchase up to $50.0 million of outstanding common stock. Under the Share Repurchase Program, shares of our common stock may be repurchased periodically, including in the open market, privately negotiated transactions, or otherwise in accordance with applicable federal securities laws, at any time. On April 25, 2024, our Board of Directors approved an extension of the Share Repurchase Program upon expiry of the current authorization on April 27, 2024, for an additional twenty-four-month period. Through March 31, 2024, the Company had repurchased 833,346 common shares at an average price of $12.11 per share for an aggregate of $10.1 million.  In connection with the extension, the Board of Directors replenished the amount of shares authorized for repurchase under the Share Repurchase Program, resulting in available capacity of $50.0 million. The actual timing, manner, number, and value of shares repurchased under the program will be determined by us at our discretion.

The following table summarizes shares repurchased under the Share Repurchase Program:

	Three Months Ended
(dollars in thousands, except per share amounts)	March 31, 2024
Total cost of shares repurchased	$	1,230
Average price per share	$	14.83
Total number of shares repurchased		82,972

Cash Dividends

The following table summarizes our dividends declared and paid in each of the quarterly periods of 2024 and 2023:

	Dividends per
(dollars in thousands, except per share amounts)	Common Share		Dividends Paid
2024
Q1	$	0.165	$	26,000
2023
Q4	$	0.155	$	24,190
Q3		0.155		24,250
Q2		0.150		23,504
Q1		0.150		23,852

On April 25, 2024, our Board of Directors declared a quarterly dividend of $0.165 per share of common stock to be paid on May 14, 2024 to stockholders of record at the close of business on May 7, 2024.

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Revenue from Contracts with Customers

3 Months Ended

Mar. 31, 2024

Revenue from Contracts with Customers

Revenue from Contracts with Customers

9. Revenue from Contracts with Customers

The following table presents our revenue from contracts with customers by segment and disaggregated by revenue source:

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Contract operations:
0 ― 1,000 horsepower per unit	$	45,327	$	39,954
1,001 ― 1,500 horsepower per unit		95,670		81,807
Over 1,500 horsepower per unit		81,865		65,714
Other (1)		189		270
Total contract operations revenue (2)		223,051		187,745
Aftermarket services:
Services		25,438		21,249
OTC parts and components sales		19,999		20,840
Total aftermarket services revenue (3)		45,437		42,089
Total revenue	$	268,488	$	229,834

(1) Primarily relates to fees associated with owned non-compression equipment.

(2) Includes $1.1 million and $0.8 million for the three months ended March 31, 2024 and 2023, respectively, related to billable maintenance on owned compressors that was recognized at a point in time. All other contract operations revenue is recognized over time.

(3) Services revenue within aftermarket services is recognized over time. OTC parts and components sales revenue is recognized at a point in time.

See Note 16 (“Segment Information”) for further information on segments.

Performance Obligations

As of March 31, 2024, we had $569.7 million of remaining performance obligations related to our contract operations segment, which will be recognized through 2029 as follows:

(in thousands)	2024		2025		2026		2027		2028		2029		Total
Remaining performance obligations	$	263,793	$	184,333	$	98,640	$	15,076	$	7,526	$	342	$	569,710

We do not disclose the aggregate transaction price for the remaining performance obligations for aftermarket services as there are no contracts with customers with an original contract term that is greater than one year.

Contract Assets and Liabilities

Contract Assets

As March 31, 2024 and December 31, 2023, our receivables from contracts with customers, net of allowance for credit losses, were $95.9 million and $119.7 million, respectively.

Allowance for Credit Losses

Our allowance for credit losses balance changed as follows during the three months ended March 31, 2024:

(in thousands)
Balance at beginning of period	$	587
Benefit from credit losses		(75)
Write-offs charged against allowance		(16)
Balance at end of period	$	496

Contract Liabilities

Freight billings to customers for the transport of compression assets, customer–specified modifications of compression assets and milestone billings on aftermarket services often result in a contract liability. As of March 31, 2024 and December 31, 2023, our contract liabilities were $7.2 million and $7.0 million, respectively.

During the three months ended March 31, 2024, we deferred revenue of $3.1 million and recognized $2.9 million as revenue. The revenue recognized during the period primarily related to freight billings and milestone billings on aftermarket services.

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Long-Lived and Other Asset Impairment

3 Months Ended

Mar. 31, 2024

Long-Lived and Other Asset Impairment

Long-Lived and Other Asset Impairment

10. Long-Lived and Other Asset Impairment

We review long–lived assets, including property, plant and equipment and identifiable intangibles that are being amortized, for impairment whenever events or changes in circumstances, including the removal of compressors from our active fleet, indicate that the carrying amount of an asset may not be recoverable.

Compression Fleet

We periodically review the future deployment of our idle compression assets for units that are not of the type, configuration, condition, make or model that are cost efficient to maintain and operate. Based on these reviews, we determine that certain idle compressors should be retired from the active fleet. The retirement of these units from the active fleet triggers a review of these assets for impairment and as a result of our review, we may record an asset impairment to reduce the book value of each unit to its estimated fair value. The fair value of each unit is estimated based on the expected net sale proceeds compared to other fleet units we recently sold, a review of other units recently offered for sale by third parties or the estimated component value of the equipment we plan to use.

In connection with our review of our idle compression assets, we evaluate for impairment idle units that were culled from our fleet in prior years and are available for sale. Based on that review, we may reduce the expected proceeds from disposition and record additional impairment to reduce the book value of each unit to its estimated fair value.

The following table presents the results of our compression fleet impairment review as recorded in our contract operations segment:

	Three Months Ended
	March 31,
(dollars in thousands)	2024		2023
Idle compressors retired from the active fleet		25		30
Horsepower of idle compressors retired from the active fleet		14,000		14,000
Impairment recorded on idle compressors retired from the active fleet	$	2,568	$	2,569

See Note 14 (“Fair Value Measurements”) for further details on fair value accounting.

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Restructuring Charges

3 Months Ended

Mar. 31, 2024

Restructuring Charges

Restructuring Charges

11. Restructuring Charges

During the first quarter of 2023, a plan to further streamline our organization and more fully align our teams to improve our customer service and profitability was approved by management. While we did not incur restructuring charges during the three months ended March 31, 2024, we expect to incur additional restructuring charges of $0.1 million related to these restructuring activities.

The following table presents restructuring charges incurred by segment during the three months ended March 31, 2023:

	Contract		Aftermarket
(in thousands)	Operations		Services		Other(1)		Total
Organizational restructuring	$	203	$	—	$	844	$	1,047
Total restructuring charges	$	203	$	—	$	844	$	1,047

(1) Represents expense incurred within our corporate function and not directly attributable to our segments.

The following table presents restructuring charges incurred by cost type:

	Three Months Ended
(in thousands)	March 31, 2024
Organizational Restructuring
Severance costs	$	789
Consulting costs		258
Total restructuring costs	$	1,047

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Income Taxes

3 Months Ended

Mar. 31, 2024

Income Taxes

Income Taxes

12. Income Taxes

Valuation Allowance

The amount of our deferred tax assets considered realizable could be adjusted if projections of future taxable income are reduced or objective negative evidence in the form of a three–year cumulative loss is present or both. Should we no longer have a level of sustained profitability, excluding nonrecurring charges, we will have to rely more on our future projections of taxable income to determine if we have an adequate source of taxable income for the realization of our deferred tax assets, namely net operating loss, interest expense limitation and tax credit carryforwards. This may result in the need to record a valuation allowance against all or a portion of our deferred tax assets.

Effective Tax Rate

The year-to-date effective tax rate for the three months ended March 31, 2024 differed significantly from our statutory rate primarily due to state taxes, unrecognized tax benefits and the limitation on executive compensation offset by the benefit from equity-settled long term incentive compensation.

Unrecognized Tax Benefits

As of March 31, 2024, we believe it is reasonably possible that $3.3 million of our unrecognized tax benefits, including penalties, interest and discontinued operations, will be reduced prior to March 31, 2025 due to the settlement of audits or the expiration of statutes of limitations or both. However, due to the uncertain and complex application of the tax regulations, it is possible that the ultimate resolution of these matters may result in liabilities that could materially differ from this estimate.

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Earnings per Common Share

3 Months Ended

Mar. 31, 2024

Earnings per Common Share

Net Income (Loss) per Common Share

13. Earnings Per Common Share

Basic earnings per common share is computed using the two–class method, which is an earnings allocation formula that determines earnings per share for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. Under the two–class method, basic earnings per common share is determined by dividing net income, after deducting amounts allocated to participating securities, by the weighted average number of common shares outstanding for the period. Participating securities include unvested restricted stock and stock–settled restricted stock units that have nonforfeitable rights to receive dividends or dividend equivalents, whether paid or unpaid. During periods of net loss, only distributed earnings (dividends) are allocated to participating securities, as participating securities do not have a contractual obligation to participate in our undistributed losses.

Diluted earnings per common share is computed using the weighted average number of common shares outstanding adjusted for the incremental common stock equivalents attributed to outstanding performance–based restricted stock units and stock to be issued pursuant to our ESPP unless their effect would have been anti–dilutive.

The following table shows the calculation of net income attributable to common stockholders, which is used in the calculation of basic and diluted earnings per common share, potential shares of common stock that were included in computing diluted earnings per common share and the potential shares of common stock issuable that were excluded from computing diluted earnings per common share as their inclusion would have been anti–dilutive:

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Net income	$	40,532	$	16,485
Less: Allocation of earnings to participating securities		(748)		(735)
Net income attributable to common stockholders	$	39,784	$	15,750
Less: Allocation of earnings to cash or share settled restricted stock units		(85)		—
Diluted net income attributable to common stockholders	$	39,699	$	15,750
Weighted average common shares outstanding used in basic earnings per common share		154,187		154,116
Effect of dilutive securities:
Performance-based restricted stock units		310		162
ESPP shares		4		3
Weighted average common shares outstanding used in diluted earnings per common share		154,501		154,281

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Fair Value Measurements

3 Months Ended

Mar. 31, 2024

Fair Value Measurements

Fair Value Measurements

14. Fair Value Measurements

Assets and Liabilities Measured at Fair Value on a Recurring Basis

As of March 31, 2024, we owned a 25% equity interest in ECOTEC (see Note 5 (“Investments in Unconsolidated Affiliates”)). We have elected the fair value option to account for this investment. The fair value determination of this investment primarily consisted of unobservable inputs, which creates uncertainty in the measurement of fair value as of the reporting date. The significant unobservable inputs used in the fair value measurement, which was valued through an average of an income approach (discounted cash flow method) and a market approach (guideline public company method), are the WACC and the revenue multiples. Significant increases (decreases) in these inputs in isolation would result in a significantly higher (lower) fair value measurement. As of March 31, 2024, the fair value of our investment in ECOTEC was $14.9 million.

This fair value measurement is classified as Level 3. The significant unobservable inputs are as follows:

	Significant	Three Months Ended			Three Months Ended
	Unobservable	March 31, 2024			March 31, 2023
	Inputs	Range	Median		Range	Median
Valuation technique:
Discounted cash flow	WACC	0.4% - 20.0%		13.5%	0.0% - 22.1%		11.3%
Guideline public company	Revenue multiple	1.5x - 7.2x		3.8x	1.7x - 8.0x		3.9x

The reconciliation of changes in the fair value of our investment in ECOTEC is as follows:

	Three Months Ended
	March 31,
(in thousands)		2024		2023
Balance at beginning of period	$	14,905	$	12,803
Purchases of equity interests		—		2,000
Unrealized loss (1)		—		(254)
Balance at end of period	$	14,905	$	14,549

(1) Included in other expense (income), net in our unaudited condensed consolidated statement of operations.

See Note 5 (“Investments in Unconsolidated Affiliates”) for further details.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Investment in Ionada

As of March 31, 2024, we had a fully diluted ownership equity interest in Ionada of 10% (see Note 5 (“Investments in Unconsolidated Affiliates”)). We have elected the fair value measurement alternative to account for this investment. As of March 31, 2024, the carrying value of our investment in Ionada was $4.3 million.

The reconciliation of changes in the carrying value of our investment in Ionada is as follows:

	Three Months Ended
	March 31,
(in thousands)	2024
Balance at beginning of period	$	4,205
Purchases of equity interests		—
Transaction costs capitalized as investment activity		57
Cost basis		4,262
Adjustments		—
Carrying value	$	4,262

Subject to certain contractual conditions, we will invest, on the same terms and conditions as the initial investment, $1.2 million on November 1, 2024, $1.3 million on November 1, 2025, and $4.8 million prior to July 1, 2026, for a fully diluted ownership interest of 12%, 15% and 24%, respectively.

Compressors

During the three months ended March 31, 2024, we recorded nonrecurring fair value measurements related to our idle compressors. Our estimate of the compressors’ fair value was primarily based on the expected net sale proceeds compared with other fleet units we recently sold and/or a review of other units recently offered for sale by third parties, or the estimated component value of the equipment we plan to use. We discounted the expected proceeds, net of selling and other carrying costs, using a weighted average disposal period of four years. These fair value measurements are classified as Level 3. The fair value of our compressors impaired as of March 31, 2024 and December 31, 2023 was as follows:

	March 31, 2024		December 31, 2023
(in thousands)
Impaired compressors	$	263	$	1,423

The significant unobservable inputs used to develop the above fair value measurements were weighted by the relative fair value of the compressors being measured. Additional quantitative information related to our significant unobservable inputs follows:

	Range	Weighted Average (1)
Estimated net sale proceeds:
As of March 31, 2024	$0 - $211 per horsepower	$50 per horsepower
As of December 31, 2023	$0 - $294 per horsepower	$50 per horsepower

(1) Calculated based on an estimated discount for market liquidity 30% and 33% as of March 31, 2024 and December 31, 2023, respectively.

See Note 10 (“Long-Lived and Other Asset Impairments”) for further details.

Other Financial Instruments

The carrying amounts of our cash, accounts receivable and accounts payable approximate fair value due to the short–term nature of these instruments.

The carrying amount of borrowings outstanding under our Credit Facility approximates fair value due to the variable interest rate. The measurement of the fair value of these outstanding borrowings is a Level 3 measurement.

The fair value of our fixed rate debt is estimated using yields observable in active markets, which are Level 2 inputs, and was as follows:

	March 31, 2024		December 31, 2023
(in thousands)
Carrying amount of fixed rate debt (1)	$	1,298,066	$	1,297,844
Fair value of fixed rate debt		1,294,000		1,289,000

(1) Carrying amounts are shown net of unamortized premium and deferred financing costs. See Note 6 (“Long-Term Debt”).

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Related Party Transactions

3 Months Ended

Mar. 31, 2024

Related Party Transactions

Related Party Transactions

15. Related Party Transactions

From August 2019 to present, our Board of Directors has included a member affiliated with our customer Hilcorp or its subsidiaries or affiliates. Revenue from Hilcorp and affiliates was $10.5 million and $9.1 million during the three months ended March 31, 2024 and 2023, respectively. Accounts receivable, net due from Hilcorp and affiliates was $3.6 million and $3.8 million as of March 31, 2024 and December 31, 2023, respectively.

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Segment Information

3 Months Ended

Mar. 31, 2024

Segment Information

Segments

16. Segment Information

We manage our business segments primarily based on the type of product or service provided. We have two segments that we operate within the U.S.: contract operations and aftermarket services. Our contract operations segment primarily provides natural gas compression services to meet specific customer requirements. Our aftermarket services segment provides a full range of services to support the compression needs of customers, from parts sales and normal maintenance services to full operation of a customer’s owned assets.

We evaluate the performance of our segments based on gross margin, defined as revenue less cost of sales (excluding depreciation and amortization) for each segment. Segment revenue includes only sales to external customers.

Summarized financial information for our reporting segments is shown below:

	Contract		Aftermarket
(in thousands)	Operations		Services		Total
Three months ended March 31, 2024
Revenue	$	223,051	$	45,437	$	268,488
Gross margin		145,308		10,437		155,745
Three months ended March 31, 2023
Revenue	$	187,745	$	42,089	$	229,834
Gross margin		108,263		8,181		116,444

The following table reconciles total gross margin to income before income taxes:

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Total gross margin	$	155,745	$	116,444
Less:
Selling, general and administrative		31,665		26,425
Depreciation and amortization		42,835		40,181
Long-lived and other asset impairment		2,568		2,569
Restructuring charges		—		1,047
Interest expense		27,334		26,581
Gain on sale of assets, net		(2,381)		(3,605)
Other (income) expense, net		139		603
Income before income taxes	$	53,585	$	22,643

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Description of Business and Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2024

Basis of Presentation and Significant Accounting Policies

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to 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 2023 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 three months ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024.

Accounting Standards Updates Implemented and Accounting Standards Updates Not Yet Implemented

Accounting Standards Updates Not Yet Implemented

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 evaluating the impact that the adoption of ASU 2023-09 will have on our consolidated financial statements and related disclosures.

Segment Reporting

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which will require disclosures of significant expenses for each reportable segment, as well as certain other disclosures to help investors understand how the chief operating decision maker evaluates segment expenses and operating results. ASU 2023-07 will also allow disclosure of multiple measures of segment profitability if those measures are used to allocate resources and assess performance. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, and should be applied on a retrospective basis, unless impracticable. Early adoption is permitted. We are evaluating the impact that the adoption of ASU 2023-07 will have on our consolidated financial statements and related disclosures.

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 expect that the adoption of ASU 2023-05 will have no impact on our consolidated financial statements.

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Inventory (Tables)

3 Months Ended

Mar. 31, 2024

Inventory

Schedule of inventory

	March 31,		December 31,
(in thousands)	2024		2023
Parts and supplies	$	68,176	$	70,759
Work in progress		12,182		11,002
Inventory	$	80,358	$	81,761

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Property, Plant and Equipment, Net (Tables)

3 Months Ended

Mar. 31, 2024

Property, Plant and Equipment, Net

Schedule of property, plant and equipment, net

	March 31,		December 31,
(in thousands)	2024		2023
Compression equipment, facilities and other fleet assets	$	3,377,588	$	3,326,919
Land and buildings		31,019		30,169
Transportation and shop equipment		100,725		100,474
Computer hardware and software		77,705		77,532
Other		5,779		5,678
Property, plant and equipment		3,592,816		3,540,772
Accumulated depreciation		(1,260,807)		(1,238,790)
Property, plant and equipment, net	$	2,332,009	$	2,301,982

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Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2024

Long-Term Debt

Schedule of long-term debt

(in thousands)	March 31, 2024		December 31, 2023
Credit Facility	$	268,500	$	287,025
6.25% senior notes due April 2028:
Principal outstanding		800,000		800,000
Unamortized debt premium		8,023		8,524
Unamortized debt issuance costs		(6,647)		(7,081)
		801,376		801,443
6.875% senior notes due April 2027:
Principal outstanding		500,000		500,000
Unamortized debt issuance costs		(3,310)		(3,599)
		496,690		496,401
Long-term debt	$	1,566,566	$	1,584,869

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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2024

Stockholders' Equity

Summary of shares repurchased

	Three Months Ended
(dollars in thousands, except per share amounts)	March 31, 2024
Total cost of shares repurchased	$	1,230
Average price per share	$	14.83
Total number of shares repurchased		82,972

Summary of dividends declared and paid

	Dividends per
(dollars in thousands, except per share amounts)	Common Share		Dividends Paid
2024
Q1	$	0.165	$	26,000
2023
Q4	$	0.155	$	24,190
Q3		0.155		24,250
Q2		0.150		23,504
Q1		0.150		23,852

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Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2024

Revenue from Contracts with Customers

Schedule of revenue from contracts with customers by segment

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Contract operations:
0 ― 1,000 horsepower per unit	$	45,327	$	39,954
1,001 ― 1,500 horsepower per unit		95,670		81,807
Over 1,500 horsepower per unit		81,865		65,714
Other (1)		189		270
Total contract operations revenue (2)		223,051		187,745
Aftermarket services:
Services		25,438		21,249
OTC parts and components sales		19,999		20,840
Total aftermarket services revenue (3)		45,437		42,089
Total revenue	$	268,488	$	229,834

(1) Primarily relates to fees associated with owned non-compression equipment.

(2) Includes $1.1 million and $0.8 million for the three months ended March 31, 2024 and 2023, respectively, related to billable maintenance on owned compressors that was recognized at a point in time. All other contract operations revenue is recognized over time.

(3) Services revenue within aftermarket services is recognized over time. OTC parts and components sales revenue is recognized at a point in time.

Schedule of remaining performance obligations

(in thousands)	2024		2025		2026		2027		2028		2029		Total
Remaining performance obligations	$	263,793	$	184,333	$	98,640	$	15,076	$	7,526	$	342	$	569,710

Summary of changes in allowance for credit losses

(in thousands)
Balance at beginning of period	$	587
Benefit from credit losses		(75)
Write-offs charged against allowance		(16)
Balance at end of period	$	496

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Long-Lived and Other Asset Impairment (Tables)

3 Months Ended

Mar. 31, 2024

Long-Lived and Other Asset Impairment

Schedule of impairment of long-lived assets

	Three Months Ended
	March 31,
(dollars in thousands)	2024		2023
Idle compressors retired from the active fleet		25		30
Horsepower of idle compressors retired from the active fleet		14,000		14,000
Impairment recorded on idle compressors retired from the active fleet	$	2,568	$	2,569

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Restructuring Charges (Tables)

3 Months Ended

Mar. 31, 2024

Restructuring Charges

Schedule of restructuring charges by segment

	Contract		Aftermarket
(in thousands)	Operations		Services		Other(1)		Total
Organizational restructuring	$	203	$	—	$	844	$	1,047
Total restructuring charges	$	203	$	—	$	844	$	1,047

(1) Represents expense incurred within our corporate function and not directly attributable to our segments.

Schedule of restructuring charges by type

	Three Months Ended
(in thousands)	March 31, 2024
Organizational Restructuring
Severance costs	$	789
Consulting costs		258
Total restructuring costs	$	1,047

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Earnings per Common Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings per Common Share

Schedule of calculation of basic and diluted net income per common share

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Net income	$	40,532	$	16,485
Less: Allocation of earnings to participating securities		(748)		(735)
Net income attributable to common stockholders	$	39,784	$	15,750
Less: Allocation of earnings to cash or share settled restricted stock units		(85)		—
Diluted net income attributable to common stockholders	$	39,699	$	15,750
Weighted average common shares outstanding used in basic earnings per common share		154,187		154,116
Effect of dilutive securities:
Performance-based restricted stock units		310		162
ESPP shares		4		3
Weighted average common shares outstanding used in diluted earnings per common share		154,501		154,281

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair value

Schedule of carrying value and estimated fair value of debt instruments

	March 31, 2024		December 31, 2023
(in thousands)
Carrying amount of fixed rate debt (1)	$	1,298,066	$	1,297,844
Fair value of fixed rate debt		1,294,000		1,289,000

(1) Carrying amounts are shown net of unamortized premium and deferred financing costs. See Note 6 (“Long-Term Debt”).

Compressors

Fair value

Schedule of significant unobservable inputs

	Range	Weighted Average (1)
Estimated net sale proceeds:
As of March 31, 2024	$0 - $211 per horsepower	$50 per horsepower
As of December 31, 2023	$0 - $294 per horsepower	$50 per horsepower

(1) Calculated based on an estimated discount for market liquidity 30% and 33% as of March 31, 2024 and December 31, 2023, respectively.

Schedule of non-recurring fair value assets

	March 31, 2024		December 31, 2023
(in thousands)
Impaired compressors	$	263	$	1,423

Ionada | Equity investment

Fair value

Schedule of reconciliation of changes in the carrying value of investment measured at fair value on nonrecurring basis

	Three Months Ended
	March 31,
(in thousands)	2024
Balance at beginning of period	$	4,205
Purchases of equity interests		—
Transaction costs capitalized as investment activity		57
Cost basis		4,262
Adjustments		—
Carrying value	$	4,262

ECOTEC | Equity investment

Fair value

Schedule of significant unobservable inputs

	Significant	Three Months Ended			Three Months Ended
	Unobservable	March 31, 2024			March 31, 2023
	Inputs	Range	Median		Range	Median
Valuation technique:
Discounted cash flow	WACC	0.4% - 20.0%		13.5%	0.0% - 22.1%		11.3%
Guideline public company	Revenue multiple	1.5x - 7.2x		3.8x	1.7x - 8.0x		3.9x

Schedule of changes in assets measured at fair value on a recurring basis

	Three Months Ended
	March 31,
(in thousands)		2024		2023
Balance at beginning of period	$	14,905	$	12,803
Purchases of equity interests		—		2,000
Unrealized loss (1)		—		(254)
Balance at end of period	$	14,905	$	14,549

(1) Included in other expense (income), net in our unaudited condensed consolidated statement of operations.

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Segments (Tables)

3 Months Ended

Mar. 31, 2024

Segment Information

Summary of revenue and other financial information by reportable segment

	Contract		Aftermarket
(in thousands)	Operations		Services		Total
Three months ended March 31, 2024
Revenue	$	223,051	$	45,437	$	268,488
Gross margin		145,308		10,437		155,745
Three months ended March 31, 2023
Revenue	$	187,745	$	42,089	$	229,834
Gross margin		108,263		8,181		116,444

Reconciliation of total gross margin to income before taxes

	Three Months Ended
	March 31,
(in thousands)	2024		2023
Total gross margin	$	155,745	$	116,444
Less:
Selling, general and administrative		31,665		26,425
Depreciation and amortization		42,835		40,181
Long-lived and other asset impairment		2,568		2,569
Restructuring charges		—		1,047
Interest expense		27,334		26,581
Gain on sale of assets, net		(2,381)		(3,605)
Other (income) expense, net		139		603
Income before income taxes	$	53,585	$	22,643

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Description of Business and Basis of Presentation (Details)	3 Months Ended
	Mar. 31, 2024 segment
Basis of Presentation and Significant Accounting Policies
Number of reportable segments	2

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Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Composition of Inventory net of reserves
Parts and supplies	$ 68,176	$ 70,759
Work in progress	12,182	11,002
Inventory	$ 80,358	$ 81,761

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Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment, Net
Property, plant and equipment	$ 3,592,816	$ 3,540,772
Accumulated depreciation	(1,260,807)	(1,238,790)
Property, plant and equipment, net	2,332,009	2,301,982
Compression equipment, facilities and other fleet assets
Property, Plant and Equipment, Net
Property, plant and equipment	3,377,588	3,326,919
Land and buildings
Property, Plant and Equipment, Net
Property, plant and equipment	31,019	30,169
Transportation and shop equipment
Property, Plant and Equipment, Net
Property, plant and equipment	100,725	100,474
Computer hardware and software
Property, Plant and Equipment, Net
Property, plant and equipment	77,705	77,532
Other
Property, Plant and Equipment, Net
Property, plant and equipment	$ 5,779	$ 5,678

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Investment in Unconsolidated Affiliate (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Nov. 30, 2023	Mar. 31, 2024	Mar. 31, 2023	Apr. 30, 2022
Investments
Cash paid to acquire equity interest		$ 57	$ 2,000
ECOTEC
Investments
Equity interest agreed to acquire (as a percent)				25.00%
Ownership interest (as a percent)		25.00%
Unrealized loss recognized due to change in fair value			$ 300
Ionada
Investments
Equity interest agreed to acquire (as a percent)		24.00%
Cash paid to acquire equity interest	$ 3,800
Ownership interest (as a percent)		10.00%
Period over which ownership interest will be acquired to reach agreed upon ownership percentage		2 years

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Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instruments
Long-term debt	$ 1,566,566	$ 1,584,869
Credit Facility
Debt Instruments
Long-term debt	268,500	287,025
6.25% senior notes due April 2028
Debt Instruments
Principal outstanding	800,000	800,000
Unamortized debt premium	8,023	8,524
Unamortized debt issuance costs	(6,647)	(7,081)
Long-term debt	$ 801,376	$ 801,443
Interest rate (as a percent)	6.25%	6.25%
6.875% senior notes due April 2027
Debt Instruments
Principal outstanding	$ 500,000	$ 500,000
Unamortized debt issuance costs	(3,310)	(3,599)
Long-term debt	$ 496,690	$ 496,401
Interest rate (as a percent)	6.875%	6.875%

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Long-Term Debt - Credit Facility (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Jun. 30, 2023	Dec. 31, 2023	May 16, 2023	Mar. 31, 2023
Credit Facility
Line of Credit Facility
Letter of credit outstanding	$ 3.8
Debt instrument, variable rate (percentage)	2.20%
Debt instrument weighted average interest rate (percent)	7.80%		7.70%
Debt issuance cost written off		$ 1.0
Commitment fee amount	$ 0.4		$ 0.5
Swing Line Loans, Credit Facility
Line of Credit Facility
Maximum borrowing capacity				$ 75.0	$ 50.0
Credit Facility, Amendment 4
Line of Credit Facility
Transaction costs		$ 6.0

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Commitments and Contingencies- Tax Matters - Loss contingencies (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Non-income based tax audits
Loss Contingencies
Accrued liability	$ 4.1	$ 3.9
Non-income based tax audits in contested hearing phase
Loss Contingencies
Accrued liability	$ 0.6	$ 0.6

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Stockholders' Equity - Share Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	11 Months Ended
	Apr. 27, 2024	Mar. 31, 2024	Mar. 31, 2024	Apr. 27, 2023
Treasury Stock
Total cost of shares repurchased (in dollars)		$ 1,230
Share Repurchase Program
Treasury Stock
Shares authorized to be repurchased (in dollars)				$ 50,000
Total cost of shares repurchased (in dollars)		$ 1,230	$ 10,100
Average price per share (in dollars per share)		$ 14.83	$ 12.11
Total number of shares repurchased (in shares)		82,972	833,346
Subsequent Event | Share Repurchase Program
Treasury Stock
Renewal period	24 months
Available capacity for repurchase (in dollars)	$ 50,000

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Stockholders' Equity - Cash Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	May 14, 2024	Apr. 25, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Distributions
Declared Dividends per Common Share (in dollars per share)			$ 0.165	$ 0.155	$ 0.155	$ 0.150	$ 0.150
Dividends Paid (in dollars)			$ 26,000	$ 24,190	$ 24,250	$ 23,504	$ 23,852
Forecasted
Distributions
Dividends Paid (in dollars per share)	$ 0.165
Subsequent Event
Distributions
Declared Dividends per Common Share (in dollars per share)		$ 0.165

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Revenue from Contracts with Customers - Disaggregate Revenue (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) hp	Mar. 31, 2023 USD ($) hp
Disaggregation of Revenue
Revenue	$ 268,488	$ 229,834
Contract operations
Disaggregation of Revenue
Revenue	223,051	187,745
Contract operations | Transferred at Point in Time
Disaggregation of Revenue
Revenue	1,100	800
Contract operations | 0 - 1,000 horsepower per unit
Disaggregation of Revenue
Revenue	$ 45,327	$ 39,954
Contract operations | 0 - 1,000 horsepower per unit | Minimum
Disaggregation of Revenue
Compressor unit horsepower (horsepower) | hp	0	0
Contract operations | 0 - 1,000 horsepower per unit | Maximum
Disaggregation of Revenue
Compressor unit horsepower (horsepower) | hp	1,000	1,000
Contract operations | 1,001 - 1,500 horsepower per unit
Disaggregation of Revenue
Revenue	$ 95,670	$ 81,807
Contract operations | 1,001 - 1,500 horsepower per unit | Minimum
Disaggregation of Revenue
Compressor unit horsepower (horsepower) | hp	1,001	1,001
Contract operations | 1,001 - 1,500 horsepower per unit | Maximum
Disaggregation of Revenue
Compressor unit horsepower (horsepower) | hp	1,500	1,500
Contract operations | Over 1,500 horsepower per unit
Disaggregation of Revenue
Revenue	$ 81,865	$ 65,714
Contract operations | Over 1,500 horsepower per unit | Minimum
Disaggregation of Revenue
Compressor unit horsepower (horsepower) | hp	1,500	1,500
Contract operations | Other
Disaggregation of Revenue
Revenue	$ 189	$ 270
Aftermarket services
Disaggregation of Revenue
Revenue	45,437	42,089
Aftermarket services | Service
Disaggregation of Revenue
Revenue	25,438	21,249
Aftermarket services | OTC parts and components sales
Disaggregation of Revenue
Revenue	$ 19,999	$ 20,840

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Revenue from Contracts with Customers - Performance Obligations (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Remaining performance obligations	$ 569,710
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Remaining performance obligations	$ 263,793
Performance obligations expected to be satisfied, expected timing	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Remaining performance obligations	$ 184,333
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Remaining performance obligations	$ 98,640
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Remaining performance obligations	$ 15,076
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Remaining performance obligations	$ 7,526
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Remaining performance obligations	$ 342
Performance obligations expected to be satisfied, expected timing	1 year

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Revenue from Contracts with Customers - Contract Assets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Revenue from Contracts with Customers
Accounts receivable, net of allowance - Customer related	$ 95.9	$ 119.7

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Revenue from Contracts with Customers - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Changes in the allowance for credit losses balance
Balance at beginning of period	$ 587
Benefit from credit losses	(75)	$ (340)
Write-offs charged against the allowance	(16)
Balance at end of period	$ 496

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Revenue from Contracts with Customers - Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Revenue from Contracts with Customers
Contract liability	$ 7,200		$ 7,000
Deferred revenue	3,070	$ 3,179
Deferred revenue recognized in earnings	$ 2,859	$ 4,476

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Long-Lived and Other Asset Impairment (Details) - Idle Compressor Units hp in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) CompressorUnit hp	Mar. 31, 2023 USD ($) CompressorUnit hp
Impaired Long-Lived Assets Held and Used
Idle compressors retired from the active fleet | CompressorUnit	25	30
Horsepower of idle compressors retired from the active fleet | hp	14	14
Impairment recorded on idle compressors retired from the active fleet | $	$ 2,568	$ 2,569
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income	Long-lived and other asset impairment	Long-lived and other asset impairment

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Restructuring Charges - By segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring charges
Restructuring charges		$ 1,047
Organizational Restructuring
Restructuring charges
Restructuring charges	$ 0	1,047
Expected additional restructuring charges	$ 100
Corporate
Restructuring charges
Restructuring charges		844
Corporate | Organizational Restructuring
Restructuring charges
Restructuring charges		844
Contract operations | Operating
Restructuring charges
Restructuring charges		203
Contract operations | Operating | Organizational Restructuring
Restructuring charges
Restructuring charges		$ 203

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Restructuring Charges - By type (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring charges
Restructuring charges		$ 1,047
Organizational Restructuring
Restructuring charges
Restructuring charges	$ 0	1,047
Severance costs | Organizational Restructuring
Restructuring charges
Restructuring charges		789
Consulting costs | Organizational Restructuring
Restructuring charges
Restructuring charges		$ 258

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Income Taxes (Details) $ in Millions	Mar. 31, 2024 USD ($)
Income Taxes
Potential decrease in unrecognized tax benefit in next twelve months	$ 3.3

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Earnings Per Common Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings per Common Share
Net income	$ 40,532	$ 16,485
Less: Allocation of earnings to participating securities	(748)	(735)
Net income attributable to common stockholders, basic	39,784	15,750
Less: Allocation of earnings to cash or share settled restricted stock units	(85)
Diluted net income attributable to common stockholders	$ 39,699	$ 15,750
Weighted average common shares outstanding used in basic earnings per common share (in shares)	154,187	154,116
Effect of dilutive securities:
Performance-based restricted stock units (in shares)	310	162
ESPP shares (in shares)	4	3
Weighted average common shares outstanding used in diluted earnings per common share (in shares)	154,501	154,281

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Fair Value Measurements - Recurring Basis - Investment in ECOTEC - Unobservable inputs (Details) - ECOTEC $ in Millions	Mar. 31, 2024 USD ($)	Mar. 31, 2023
Fair value measurement of assets and liabilities
Ownership interest (as a percent)	25.00%
Investment	$ 14.9
Equity investment | Level 3 | Discounted cash flow | WACC | Minimum
Significant unobservable inputs
Equity Securities, FV-NI, Measurement Input	0.004	0.000
Equity investment | Level 3 | Discounted cash flow | WACC | Maximum
Significant unobservable inputs
Equity Securities, FV-NI, Measurement Input	0.200	0.221
Equity investment | Level 3 | Discounted cash flow | WACC | Median
Significant unobservable inputs
Equity Securities, FV-NI, Measurement Input	0.135	0.113
Equity investment | Level 3 | Guideline public company | Revenue multiple | Minimum
Significant unobservable inputs
Equity Securities, FV-NI, Measurement Input	1.5	1.7
Equity investment | Level 3 | Guideline public company | Revenue multiple | Maximum
Significant unobservable inputs
Equity Securities, FV-NI, Measurement Input	7.2	8.0
Equity investment | Level 3 | Guideline public company | Revenue multiple | Median
Significant unobservable inputs
Equity Securities, FV-NI, Measurement Input	3.8	3.9

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Fair Value Measurements - Recurring Basis - Investment in ECOTEC - Changes in FV (Details) - ECOTEC - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Reconciliation of changes in fair value
Unrealized loss		$ (300)
Equity investment
Reconciliation of changes in fair value
Balance, beginning of period	$ 14,905	12,803
Purchases of equity interests		2,000
Unrealized loss		(254)
Balance, end of period	$ 14,905	$ 14,549

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Fair Value Measurements - Nonrecurring Basis - Investment in Ionada (Details) - USD ($) $ in Thousands				1 Months Ended	3 Months Ended
	Jun. 30, 2026	Nov. 01, 2025	Nov. 01, 2024	Nov. 30, 2023	Mar. 31, 2024	Mar. 31, 2023
Reconciliation of changes in fair value
Cash paid to acquire equity interest					$ 57	$ 2,000
Ionada
Assets measured at fair value on a nonrecurring basis
Ownership interest (as a percent)					10.00%
Reconciliation of changes in fair value
Balance, beginning of period					$ 4,205
Transaction costs capitalized as investment activity					57
Cost basis					4,262
Carrying value					$ 4,262
Cash paid to acquire equity interest				$ 3,800
Ionada | Forecasted
Assets measured at fair value on a nonrecurring basis
Ownership interest (as a percent)	24.00%	15.00%	12.00%
Reconciliation of changes in fair value
Purchases of equity interests	$ 4,800	$ 1,300	$ 1,200

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Fair Value Measurements - Nonrecurring Basis - Compressors (Details) - Level 3 - Impaired Long-Lived Assets - Compressors $ in Thousands	Mar. 31, 2024 USD ($) $ / hp Y	Dec. 31, 2023 USD ($) $ / hp Y
Measurement Input, Weighted average disposal period
Assets measured on nonrecurring basis
Measurement input | Y	4	4
Measurement Input, Sale proceeds | Minimum
Assets measured on nonrecurring basis
Measurement input	0	0
Measurement Input, Sale proceeds | Maximum
Assets measured on nonrecurring basis
Measurement input	211	294
Measurement Input, Sale proceeds | Weighted average
Assets measured on nonrecurring basis
Measurement input	50	50
Measurement Input, Discount for market liquidity
Assets measured on nonrecurring basis
Measurement input	0.30	0.33
Nonrecurring Basis
Assets measured on nonrecurring basis
Impaired assets | $	$ 263	$ 1,423

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Fair Value Measurements - Other Financial Instruments (Details) - Fixed Rate Debt - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, fair value	$ 1,298,066	$ 1,297,844
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, fair value	$ 1,294,000	$ 1,289,000
Long-Term Debt, Fair Value by Fair Value Hierarchy Level	us-gaap:FairValueInputsLevel2Member	us-gaap:FairValueInputsLevel2Member

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Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Related Party Transaction
Revenue	$ 268,488	$ 229,834
Accounts receivable, net of allowance - Customer related	95,900		$ 119,700
Accounts receivable, net of allowance of $1,487 and $2,152, respectively	105,295		124,069
Affiliated Entity
Related Party Transaction
Revenue	10,500	$ 9,100
Accounts receivable, net of allowance - Customer related	$ 3,600		$ 3,800

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Segment Information - Number (Details)	3 Months Ended
	Mar. 31, 2024 segment
Segment Information
Number of reportable segments	2

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Segment Information - Revenue and Gross Margin by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue and other financial information by reportable segment
Revenue	$ 268,488	$ 229,834
Gross margin	155,745	116,444
Capital expenditures	99,755	84,392
Contract operations
Revenue and other financial information by reportable segment
Revenue	223,051	187,745
Gross margin	145,308	108,263
Aftermarket services
Revenue and other financial information by reportable segment
Revenue	45,437	42,089
Gross margin	$ 10,437	$ 8,181

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Segment Information - Reconciliation of gross margin to income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Reconciliation of total gross margin to income
Total gross margin	$ 155,745	$ 116,444
Less:
Selling, general and administrative	31,665	26,425
Depreciation and amortization	42,835	40,181
Long-lived and other asset impairment	2,568	2,569
Restructuring charges		1,047
Interest expense	27,334	26,581
Gain on sale of assets, net	(2,381)	(3,605)
Other (income) expense, net	139	603
Income before income taxes	$ 53,585	$ 22,643

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 40,532	$ 16,485

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Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false