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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, 2022
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. 001-35779
USA Compression Partners, LP
(Exact name of registrant as specified in its charter)
Delaware
(State or other jurisdiction of
incorporation or organization)
75-2771546
(I.R.S. Employer
Identification No.)
111 Congress Avenue, Suite 2400
Austin, Texas
(Address of principal executive offices)
78701
(Zip Code)
(512) 473-2662
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common units representing limited partner interestsUSACNew 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 ☒
As of April 26, 2022, there were 97,377,355 common units outstanding.



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GLOSSARY
The abbreviations, acronyms and industry terminology used in this Quarterly Report are defined as follows:
COVID-19novel coronavirus 2019
Credit AgreementSeventh Amended and Restated Credit Agreement, dated as of December 8, 2021, by and among USA Compression Partners, LP, as borrower, the guarantors party thereto from time to time, the lenders party thereto from time to time, as may be amended from time to time, and any predecessor thereto if the context so dictates
DERsdistribution equivalent rights
DRIPdistribution reinvestment plan
EBITDAearnings before interest, taxes, depreciation and amortization
Energy TransferEnergy Transfer LP, for periods following its merger with Energy Transfer Operating, L.P., and Energy Transfer Operating, L.P. for periods prior to such merger
Exchange ActSecurities Exchange Act of 1934, as amended
GAAPgenerally accepted accounting principles of the United States of America
Preferred UnitsSeries A Preferred Units representing limited partner interests in USA Compression Partners, LP
SECUnited States Securities and Exchange Commission
Senior Notes 2026$725.0 million aggregate principal amount of senior notes due on April 1, 2026
Senior Notes 2027$750.0 million aggregate principal amount of senior notes due on September 1, 2027
SOFRSecured Overnight Financing Rate
U.S.United States of America

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PART I.  FINANCIAL INFORMATION
ITEM 1.    Financial Statements
USA COMPRESSION PARTNERS, LP
Unaudited Condensed Consolidated Balance Sheets
(in thousands)
March 31,
2022
December 31,
2021
Assets
Current assets:
Cash and cash equivalents$15 $ 
Accounts receivable:
Trade, net of allowances for credit losses of $1,493 and $2,057, respectively
69,581 68,175 
Other212 39 
Related party receivables45,124 44,941 
Inventories89,799 85,816 
Prepaid expenses and other assets6,935 6,016 
Total current assets211,666 204,987 
Property and equipment, net2,193,007 2,222,336 
Lease right-of-use assets19,929 20,173 
Identifiable intangible assets, net297,067 304,411 
Other assets15,283 16,072 
Total assets$2,736,952 $2,767,979 
Liabilities, Preferred Units and Partners’ Capital
Current liabilities:
Accounts payable$22,688 $22,538 
Accrued liabilities92,513 113,891 
Deferred revenue51,853 51,216 
Total current liabilities167,054 187,645 
Long-term debt, net2,023,183 1,973,234 
Operating lease liabilities18,066 18,551 
Other liabilities9,722 10,132 
Total liabilities2,218,025 2,189,562 
Commitments and contingencies
Preferred Units477,309 477,309 
Partners’ capital:
Common units, 97,377 and 97,345 units issued and outstanding, respectively
27,639 87,129 
Warrants13,979 13,979 
Total partners’ capital41,618 101,108 
Total liabilities, Preferred Units and partners’ capital$2,736,952 $2,767,979 
See accompanying notes to unaudited condensed consolidated financial statements.
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USA COMPRESSION PARTNERS, LP
Unaudited Condensed Consolidated Statements of Operations
(in thousands, except per unit amounts)
Three Months Ended March 31,
20222021
Revenues:
Contract operations$157,668 $152,525 
Parts and service1,926 2,038 
Related party3,818 2,950 
Total revenues163,412 157,513 
Costs and expenses:
Cost of operations, exclusive of depreciation and amortization53,732 48,628 
Depreciation and amortization59,064 61,030 
Selling, general and administrative15,265 13,800 
Gain on disposition of assets(179)(1,255)
Impairment of compression equipment432 2,550 
Total costs and expenses128,314 124,753 
Operating income35,098 32,760 
Other income (expense):
Interest expense, net(31,838)(32,288)
Other20 25 
Total other expense(31,818)(32,263)
Net income before income tax expense3,280 497 
Income tax expense26 126 
Net income3,254 371 
Less: distributions on Preferred Units(12,187)(12,187)
Net loss attributable to common unitholders’ interests$(8,933)$(11,816)
Weighted average common units outstanding – basic and diluted97,365 96,989 
Basic and diluted net loss per common unit$(0.09)$(0.12)
Distributions declared per common unit for respective periods$0.525 $0.525 
See accompanying notes to unaudited condensed consolidated financial statements.
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USA COMPRESSION PARTNERS, LP
Unaudited Condensed Consolidated Statements of Changes in Partners’ Capital
(in thousands, except per unit amounts)
For the Three Months Ended March 31, 2022
Common unitsWarrantsTotal
Partners’ capital ending balance, December 31, 2021
$87,129 $13,979 $101,108 
Distributions and DERs, $0.525 per unit
(51,137) (51,137)
Issuance of common units under the DRIP516  516 
Unit-based compensation for equity classified awards64  64 
Net loss attributable to common unitholders’ interests(8,933) (8,933)
Partners’ capital ending balance, March 31, 2022$27,639 $13,979 $41,618 
For the Three Months Ended March 31, 2021
Common unitsWarrantsTotal
Partners’ capital ending balance, December 31, 2020
$323,676 $13,979 $337,655 
Vesting of phantom units391  391 
Distributions and DERs, $0.525 per unit
(50,931) (50,931)
Issuance of common units under the DRIP463  463 
Unit-based compensation for equity classified awards52  52 
Net loss attributable to common unitholders’ interests(11,816) (11,816)
Partners’ capital ending balance, March 31, 2021$261,835 $13,979 $275,814 
See accompanying notes to unaudited condensed consolidated financial statements.
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USA COMPRESSION PARTNERS, LP
Unaudited Condensed Consolidated Statements of Cash Flows
(in thousands)
Three Months Ended March 31,
20222021
Cash flows from operating activities:
Net income$3,254 $371 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization59,064 61,030 
Provision for expected credit losses(500)(1,250)
Amortization of debt issuance costs1,822 2,281 
Unit-based compensation expense3,710 4,182 
Deferred income tax benefit(204)(99)
Gain on disposition of assets(179)(1,255)
Impairment of compression equipment432 2,550 
Changes in assets and liabilities:
Accounts receivable and related party receivables, net(1,138)(2,779)
Inventories(5,161)(3,261)
Prepaid expenses and other current assets(919)(479)
Other assets869 706 
Accounts payable(2,202)1,316 
Accrued liabilities and deferred revenue(23,794)(23,701)
Net cash provided by operating activities35,054 39,612 
Cash flows from investing activities:
Capital expenditures, net(20,230)(6,185)
Proceeds from disposition of property and equipment467 420 
Proceeds from insurance recovery49 1,559 
Net cash used in investing activities(19,714)(4,206)
Cash flows from financing activities:
Proceeds from revolving credit facility214,978 190,511 
Payments on revolving credit facility(165,785)(161,633)
Cash paid related to net settlement of unit-based awards (289)
Cash distributions on common units(51,767)(51,571)
Cash distributions on Preferred Units(12,187)(12,187)
Deferred financing costs(423) 
Other(141)(140)
Net cash used in financing activities(15,325)(35,309)
Increase in cash and cash equivalents15 97 
Cash and cash equivalents, beginning of period 2 
Cash and cash equivalents, end of period$15 $99 
Supplemental cash flow information:
Cash paid for interest, net of capitalized amounts$54,712 $55,391 
Cash paid for income taxes$ $13 
Supplemental non-cash transactions:
Non-cash distributions to certain common unitholders (DRIP)$516 $463 
Transfers from inventories to property and equipment$1,118 $3,139 
Changes in capital expenditures included in accounts payable and accrued liabilities$1,874 $(800)
Changes in financing costs included in accounts payable and accrued liabilities$(146)$139 
See accompanying notes to unaudited condensed consolidated financial statements.
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USA COMPRESSION PARTNERS, LP
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(1) Organization and Description of Business
Unless otherwise indicated, the terms “our,” “we,” “us,” “the Partnership” and similar language refer to USA Compression Partners, LP, collectively with its consolidated subsidiaries.
We are a Delaware limited partnership. Through our operating subsidiaries, we provide compression services under fixed-term contracts with customers in the natural gas and crude oil industries, using natural gas compression packages that we design, engineer, own, operate and maintain. We also own and operate a fleet of equipment used to provide natural gas treating services, such as carbon dioxide and hydrogen sulfide removal, cooling and dehydration. We primarily provide compression services in a number of shale plays throughout the U.S., including the Utica, Marcellus, Permian Basin, Delaware Basin, Eagle Ford, Mississippi Lime, Granite Wash, Woodford, Barnett, Haynesville, Niobrara and Fayetteville shales.
USA Compression GP, LLC, a Delaware limited liability company, serves as our general partner and is referred to herein as the “General Partner.” The General Partner is wholly owned by Energy Transfer.
The accompanying unaudited condensed consolidated financial statements include the accounts of the Partnership and its subsidiaries, all of which are wholly owned by us.
(2) Basis of Presentation and Summary of Significant Accounting Policies
Basis of Presentation
Our accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP and pursuant to the rules and regulations of the SEC.
In the opinion of our management, such financial information reflects all normal recurring adjustments necessary for a fair presentation of these interim unaudited condensed consolidated financial statements in accordance with GAAP. Operating results for the three months ended March 31, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022. Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. Therefore, these unaudited condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements contained in our annual report on Form 10-K for the year ended December 31, 2021 filed on February 15, 2022 (our “2021 Annual Report”).
Use of Estimates
Our unaudited condensed consolidated financial statements have been prepared in conformity with GAAP, which includes the use of estimates and assumptions by management that affect the reported amounts of assets, liabilities, revenues, expenses and disclosure of contingent assets and liabilities that existed at the date of the unaudited condensed consolidated financial statements. Although these estimates were based on management’s available knowledge of current and expected future events, actual results could differ from these estimates.
Accounting Policies
Cash and Cash Equivalents
Cash and cash equivalents consist of all cash balances. We consider investments in highly liquid financial instruments purchased with an original maturity of 90 days or less to be cash equivalents.
Trade Accounts Receivable
Trade accounts receivable are recorded at the invoiced amount.
Allowance for Credit Losses
We evaluate our allowance for credit losses related to our trade accounts receivable measured at amortized cost. Due to the short-term nature of our trade accounts receivable, we consider the amortized cost to be the same as the carrying amount of the receivable, excluding the allowance for credit losses.
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Our determination of the allowance for credit losses requires us to make estimates and judgments regarding our customers’ ability to pay amounts due. We continuously evaluate the financial strength of our customers and the overall business climate in which our customers operate, and make adjustments to the allowance for credit losses as necessary. We evaluate the financial strength of our customers by reviewing the aging of their receivables, our collection experience with the customer, correspondence, financial information and third-party credit ratings. We evaluate the business climate in which our customers operate by reviewing various publicly available materials regarding our customers’ industry, including the solvency of various companies in the industry.
Inventories
Inventories consist of serialized and non-serialized parts used primarily on compression units. All inventories are stated at the lower of cost or net realizable value. Serialized parts inventories are determined using the specific identification cost method, while non-serialized parts inventories are determined using the weighted average cost method. Purchases of inventories are considered operating activities on the unaudited condensed consolidated statements of cash flows.
Property and Equipment
Property and equipment are carried at cost except for (i) certain acquired assets which are recorded at fair value on their respective acquisition dates and (ii) impaired assets which are recorded at fair value on the last impairment evaluation date for which an adjustment was required. Overhauls and major improvements that increase the value or extend the life of compression equipment are capitalized and depreciated over three to five years. Ordinary maintenance and repairs are charged to cost of operations, exclusive of depreciation and amortization.
When property and equipment is retired or sold, its carrying value and the related accumulated depreciation are removed from our accounts and any associated gains or losses are recorded on the unaudited condensed consolidated statements of operations in the period of sale or disposition.
Capitalized interest is calculated by multiplying our monthly effective interest rate on outstanding debt by the amount of qualifying costs, which include upfront payments to acquire certain compression units. Capitalized interest was approximately $138,000 and $3,000 for the three months ended March 31, 2022 and 2021, respectively.
Impairment of Long-Lived Assets
Long-lived assets with recorded values that are not expected to be recovered through future cash flows are written down to estimated fair value. We test long-lived assets for impairment when events or circumstances indicate that the assets’ carrying value may not be recoverable or will no longer be utilized in the operating fleet. The most common circumstance requiring compression units to be evaluated for impairment is when idle units do not meet the desired performance characteristics of our active revenue generating horsepower.
The carrying value of a long-lived asset is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. If the carrying value of the long-lived asset exceeds the sum of the undiscounted cash flows associated with the asset, an impairment loss equal to the amount of the carrying value exceeding the fair value of the asset is recognized. The fair value of the asset is measured using quoted market prices or, in the absence of quoted market prices, based on an estimate of discounted cash flows, the expected net sale proceeds compared to the other similarly configured fleet units we recently sold 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.
Refer to Note 5 for more detailed information about impairment charges during the three months ended March 31, 2022 and 2021.
Identifiable Intangible Assets
Identifiable intangible assets are recorded at cost and amortized using the straight-line method over their estimated useful lives, which is the period over which the assets are expected to contribute directly or indirectly to our future cash flows. The estimated useful lives of our intangible assets range from 15 to 25 years.
Revenue Recognition
Revenue is recognized when obligations under the terms of a contract with our customer are satisfied; generally this occurs with the transfer of our services or goods. Revenue is measured at the amount of consideration we expect to receive in exchange for providing services or transferring goods. Incidental items, if any, that are immaterial in the context of the contract are recognized as expenses.
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Income Taxes
USA Compression Partners, LP is organized as a partnership for U.S. federal and state income tax purposes. As a result, our partners are responsible for U.S. federal and state income taxes based upon their distributive share of our items of income, gain, loss or deduction. USA Compression Finance Corp. (“Finance Corp”) is a corporation for U.S. federal and state income tax purposes and such tax impacts are included in the accompanying unaudited condensed consolidated financial statements. Texas imposes an entity-level income tax on partnerships that is based on Texas sourced taxable margin (the “Texas Margin Tax”). We have included in the unaudited condensed consolidated financial statements a provision for the Texas Margin Tax.
Pass Through Taxes
Sales taxes incurred on behalf of, and passed through to, customers are accounted for on a net basis.
Fair Value Measurements
Accounting standards on fair value measurements establish a framework for measuring fair value and stipulate disclosures about fair value measurements. The standards apply to recurring and non-recurring financial and non-financial assets and liabilities that require or permit fair value measurements. Among the required disclosures is the fair value hierarchy of inputs we use to value an asset or a liability. The three levels of the fair value hierarchy are described as follows:
Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that we have the ability to access at the measurement date.
Level 2 inputs are those other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.
Level 3 inputs are unobservable inputs for the asset or liability.
As of March 31, 2022, our financial instruments consisted primarily of cash and cash equivalents, trade accounts receivable, trade accounts payable and long-term debt. The book values of cash and cash equivalents, trade accounts receivable and trade accounts payable are representative of fair value due to their short-term maturities. The carrying amount of our revolving credit facility approximates fair value due to the floating interest rates associated with the debt.
The fair value of our Senior Notes 2026 and Senior Notes 2027 were estimated using quoted prices in inactive markets and are considered Level 2 measurements.
The following table summarizes the aggregate principal amount and fair value of our Senior Notes 2026 and Senior Notes 2027 (in thousands):
March 31,
2022
December 31,
2021
Senior Notes 2026, aggregate principal$725,000 $725,000 
Fair value of Senior Notes 2026732,250 755,813 
Senior Notes 2027, aggregate principal750,000 750,000 
Fair value of Senior Notes 2027755,625 787,500 
Operating Segment
We operate in a single business segment, the compression services business.
(3) Trade Accounts Receivable
The allowance for credit losses, which was $1.5 million and $2.1 million as of March 31, 2022 and December 31, 2021, respectively, is our best estimate of the amount of probable credit losses included in our existing accounts receivable.
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The following summarizes activity within our trade accounts receivable allowance for credit losses balance (in thousands):
Allowance for Credit Losses
Balance as of December 31, 2021$2,057 
Current-period provision for expected credit losses(500)
Writeoffs charged against the allowance(64)
Balance as of March 31, 2022$1,493 
For the three months ended March 31, 2022, we recognized a reversal of $0.5 million of our provision for expected credit losses. Improved market conditions for customers due to higher commodity prices was the primary factor contributing to the decrease to the allowance for credit losses for the three months ended March 31, 2022.
For the three months ended March 31, 2021, we recognized a reversal of $1.3 million of our provision for expected credit losses. Improved market conditions for customers due to the recovery in commodity prices was the primary factor contributing to the decrease to the allowance for credit losses for the three months ended March 31, 2021.
(4)  Inventories
Components of inventories are as follows (in thousands):
March 31,
2022
December 31,
2021
Serialized parts$47,629 $44,642 
Non-serialized parts42,170 41,174 
Total inventories$89,799 $85,816 
(5)  Property and Equipment and Identifiable Intangible Assets
Property and Equipment
Property and equipment consisted of the following (in thousands):
March 31,
2022
December 31,
2021
Compression and treating equipment$3,539,222 $3,522,083 
Computer equipment55,396 54,013 
Automobiles and vehicles32,506 31,919 
Leasehold improvements8,849 8,847 
Buildings5,334 5,334 
Furniture and fixtures1,106 1,105 
Land77 77 
Total property and equipment, gross3,642,490 3,623,378 
Less: accumulated depreciation and amortization(1,449,483)(1,401,042)
Total property and equipment, net$2,193,007 $2,222,336 
Depreciation is calculated using the straight-line method over the estimated useful lives of the assets as follows:
Compression equipment, acquired new25 years
Compression equipment, acquired used
5 - 25 years
Furniture and fixtures
3 - 10 years
Vehicles and computer equipment
1 - 10 years
Buildings
5 years
Leasehold improvements5 years
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Depreciation expense on property and equipment and gain on disposition of assets were as follows (in thousands):
Three Months Ended March 31,
 20222021
Depreciation expense$51,720 $53,685 
Gain on disposition of assets179 1,255 
On a quarterly basis, we evaluate the future deployment of our idle fleet under current market conditions. For the three months ended March 31, 2022 and 2021, we determined to retire 10 and 12 compressor units, respectively, for a total of approximately 1,400 and 5,600 horsepower, respectively, that were previously used to provide compression services in our business. As a result, we recorded impairments of compression equipment of $0.4 million and $2.6 million for the three months ended March 31, 2022 and 2021, respectively.
The primary causes for these impairments were: (i) units were not considered marketable in the foreseeable future, (ii) units were subject to excessive maintenance costs or (iii) units were unlikely to be accepted by customers due to certain performance characteristics of the unit, such as the inability to meet current quoting criteria without excessive retrofitting costs. These compression units were written down to their respective estimated salvage values, if any.
Identifiable Intangible Assets
Identifiable intangible assets, net consisted of the following (in thousands):
Customer RelationshipsTrade NamesTotal
Net balance as of December 31, 2021$276,848 $27,563 $304,411 
Amortization expense(6,526)(818)(7,344)
Net balance as of March 31, 2022$270,322 $26,745 $297,067 
Accumulated amortization of intangible assets was $253.6 million and $246.3 million as of March 31, 2022 and December 31, 2021, respectively.
(6)  Other Current Liabilities
Components of other current liabilities included the following (in thousands):
March 31,
2022
December 31,
2021
Accrued sales tax contingencies (1)$44,923 $44,923 
Accrued interest expense6,467 30,850 
Accrued unit-based compensation liability15,780 13,280 
________________________________
(1)Refer to Note 13 for further information on the accrued sales tax contingencies.
(7)  Lease Accounting
Lessor Accounting
We granted a bargain purchase option to a customer with respect to certain compressor packages leased to the customer. The bargain purchase option provided the customer with an option to acquire the equipment at a value significantly less than the fair market value at the end of the lease term.
Prior to the customer exercising its bargain purchase option during the second quarter of 2021, revenue and interest income related to the lease was recognized over the lease term. We recognized maintenance revenue within contract operations revenue and interest income within interest expense, net. Maintenance revenue and interest income for the three months ended March 31, 2021 were $0.3 million and $0.1 million, respectively.
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(8)  Long-term Debt
Our long-term debt, of which there is no current portion, consisted of the following (in thousands):
March 31,
2022
December 31,
2021
Senior Notes 2026, aggregate principal$725,000 $725,000 
Senior Notes 2027, aggregate principal750,000 750,000 
Less: deferred financing costs, net of amortization(17,352)(18,108)
Total senior notes, net1,457,648 1,456,892 
Revolving credit facility565,535 516,342 
Total long-term debt, net$2,023,183 $1,973,234 
Revolving Credit Facility
The Credit Agreement has an aggregate commitment of $1.6 billion (subject to availability under our borrowing base), with a further potential increase of up to $200 million. The Partnership's obligations under the Credit Agreement are guaranteed by the guarantors party to the Credit Agreement, which currently consists of all of the Partnership's subsidiaries. The Credit Agreement matures on December 8, 2026, except that if any portion of the Senior Notes 2026 are outstanding on December 31, 2025, the Credit Agreement will mature on December 31, 2025.
As of March 31, 2022, we had outstanding borrowings under the Credit Agreement of $565.5 million, $1.0 billion of borrowing base availability and, subject to compliance with the applicable financial covenants, available borrowing capacity of $224.4 million. Our weighted-average interest rate in effect for all borrowings under the Credit Agreement as of March 31, 2022 was 3.17%, with a weighted-average interest rate of 2.84% for the three months ended March 31, 2022. There were no letters of credit issued as of March 31, 2022. We pay a commitment fee of 0.375% on the unused portion of the Credit Agreement.
The Credit Agreement permits us to make distributions of available cash to unitholders so long as (i) no default under the facility has occurred, is continuing or would result from the distribution, (ii) immediately prior to and after giving effect to such distribution, we are in compliance with the facility’s financial covenants, and (iii) immediately prior to and after giving effect to such distribution, (a) on or before September 30, 2023, we have availability under the Credit Agreement of at least $250 million and (b) after September 30, 2023, we have availability under the Credit Agreement of at least $100 million.
The Credit Agreement also contains various financial covenants, including covenants requiring us to maintain:
a minimum EBITDA to interest coverage ratio of 2.5 to 1.0, determined as of the last day of each fiscal quarter, with EBITDA and interest expense annualized for the fiscal quarter most recently ended;
a ratio of total secured indebtedness to EBITDA not greater than 3.0 to 1.0 or less than 0.0 to 1.0, determined as of the last day of each fiscal quarter, with EBITDA annualized for the fiscal quarter most recently ended; and
a maximum funded debt to EBITDA ratio, determined as of the last day of each fiscal quarter with EBITDA annualized for the fiscal quarter most recently ended, (i) 5.75 to 1.00 through the second fiscal quarter of 2022, (ii) 5.50 to 1.00 from the third quarter of 2022 through the third quarter of 2023 and (iii) 5.25 to 1.00 thereafter. In addition, the Partnership may increase the applicable ratio by 0.25 for any fiscal quarter during which a Specified Acquisition (as defined in the Credit Agreement) occurs and the following two fiscal quarters, but in no event shall the maximum ratio exceed 5.50 to 1.00 for any fiscal quarter as a result of such increase.
As of March 31, 2022, we were in compliance with all of our covenants under the Credit Agreement.
The Credit Agreement is a “revolving credit facility” that includes a lock box arrangement, whereby remittances from customers are forwarded to a bank account controlled by the administrative agent and are applied to reduce borrowings under the facility.
Senior Notes 2026
On March 23, 2018, USA Compression Partners, LP and Finance Corp, co-issued the Senior Notes 2026. The Senior Notes 2026 mature on April 1, 2026 and accrue interest at the rate of 6.875% per year. Interest on the Senior Notes 2026 is payable semi-annually in arrears on each of April 1 and October 1.
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The indenture governing the Senior Notes 2026 (the “2026 Indenture”) contains certain financial ratios that we must comply with in order to make certain restricted payments as described in the 2026 Indenture. As of March 31, 2022, we were in compliance with such financial covenants under the 2026 Indenture.
The Senior Notes 2026 are fully and unconditionally guaranteed (the “2026 Guarantees”), jointly and severally, on a senior unsecured basis by all of our subsidiaries (other than Finance Corp), and will be fully and unconditionally guaranteed, jointly and severally, by each of our future restricted subsidiaries that either borrows under, or guarantees, the Credit Agreement or guarantees certain of our other indebtedness (collectively, the “Guarantors”). The Senior Notes 2026 and the 2026 Guarantees are general unsecured obligations and rank equally in right of payment with all of the Guarantors’, Finance Corp’s, and our existing and future senior indebtedness and senior to the Guarantors’, Finance Corp’s, and our future subordinated indebtedness, if any. The Senior Notes 2026 and the 2026 Guarantees are effectively subordinated in right of payment to all of the Guarantors’, Finance Corp’s, and our existing and future secured debt, including debt under the Credit Agreement and guarantees thereof, to the extent of the value of the assets securing such debt, and are structurally subordinated to all indebtedness of any of our subsidiaries that do not guarantee the Senior Notes 2026.
Senior Notes 2027
On March 7, 2019, USA Compression Partners, LP and Finance Corp co-issued the Senior Notes 2027. The Senior Notes 2027 mature on September 1, 2027 and accrue interest at the rate of 6.875% per year. Interest on the Senior Notes 2027 is payable semi-annually in arrears on each of March 1 and September 1.
The indenture governing the Senior Notes 2027 (the “2027 Indenture”) contains certain financial ratios that we must comply with in order to make certain restricted payments as described in the 2027 Indenture. As of March 31, 2022, we were in compliance with such financial covenants under the 2027 Indenture.
The Senior Notes 2027 are fully and unconditionally guaranteed (the “2027 Guarantees”), jointly and severally, on a senior unsecured basis by the Guarantors. The Senior Notes 2027 and the 2027 Guarantees are general unsecured obligations and rank equally in right of payment with all of the Guarantors’, Finance Corp’s, and our existing and future senior indebtedness and senior to the Guarantors’, Finance Corp’s, and our future subordinated indebtedness, if any. The Senior Notes 2027 and the 2027 Guarantees are effectively subordinated in right of payment to all of the Guarantors’, Finance Corp’s, and our existing and future secured debt, including debt under the Credit Agreement and guarantees thereof, to the extent of the value of the assets securing such debt, and are structurally subordinated to all indebtedness of any of our subsidiaries that do not guarantee the Senior Notes 2027.
We have no assets or operations independent of our subsidiaries, and there are no significant restrictions upon our ability to obtain funds from our subsidiaries by dividend or loan. Each of the Guarantors is 100% owned by us. None of the assets of our subsidiaries represent restricted net assets pursuant to Rule 4-08(e)(3) of Regulation S-X under the Securities Act.
(9)  Preferred Units
We had 500,000 Preferred Units outstanding as of March 31, 2022 and December 31, 2021, respectively, with a face value of $1,000 per Preferred Unit.
The Preferred Units rank senior to the common units with respect to distributions and rights upon liquidation. The holders of the Preferred Units are entitled to receive cumulative quarterly cash distributions equal to $24.375 per Preferred Unit.
We have declared and paid quarterly cash distributions per unit to the holders of the Preferred Units of record as follows:
Payment DateDistribution per Preferred Unit
February 5, 2021$24.375 
May 7, 202124.375 
August 6, 202124.375 
November 5, 202124.375 
2021 total distributions
$97.500 
February 4, 2022$24.375 
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Announced Quarterly Distribution
On April 14, 2022, we declared a cash distribution of $24.375 per unit on our Preferred Units. The distribution will be paid on May 6, 2022 to the holders of the Preferred Units of record as of the close of business on April 25, 2022.
Changes in the Preferred Units balance are as follows (in thousands):
Preferred Units
Balance as of December 31, 2021$477,309 
Net income allocated to Preferred Units12,187 
Cash distributions on Preferred Units(12,187)
Balance as of March 31, 2022$477,309 
Redemption and Conversion Features
The Preferred Units are convertible, at the option of the holder, into common units in accordance with the terms of our Second Amended and Restated Agreement of Limited Partnership (the “Partnership Agreement”) as follows: one third on or after April 2, 2021, two thirds on or after April 2, 2022, and 100% on or after April 2, 2023. The conversion rate for the Preferred Units is the quotient of (a) the sum of (i) $1,000, plus (ii) any unpaid cash distributions on the applicable Preferred Unit, divided by (b) $20.0115 for each Preferred Unit.
On or after April 2, 2023, we have the option to redeem all or any portion of the Preferred Units then outstanding, subject to certain minimum redemption threshold amounts, for a redemption price set forth in the Partnership Agreement. On or after April 2, 2028, each holder of the Preferred Units will have the right to require us to redeem all or a portion of their Preferred Units, subject to certain minimum redemption threshold amounts, for a redemption price set forth in the Partnership Agreement, which we may elect to pay up to 50% in common units, subject to certain additional limits.
(10) Partners’ Capital
Common Units
The change in common units outstanding was as follows:
Units Outstanding
Number of units outstanding as of December 31, 202197,344,707 
Issuance of common units under the DRIP32,648 
Number of units outstanding as of March 31, 202297,377,355 
As of March 31, 2022, Energy Transfer held 46,056,228 common units, including 8,000,000 common units held by the General Partner and controlled by Energy Transfer.
Cash Distributions
We have declared and paid quarterly distributions per unit to our limited partner unitholders of record, including holders of our common and phantom units, as follows (dollars in millions, except distribution per unit):
Payment DateDistribution per Limited Partner UnitAmount Paid to Common UnitholdersAmount Paid to Phantom UnitholdersTotal Distribution
February 5, 2021$0.525 $50.9 $1.1 $52.0 
May 7, 20210.525 50.9 1.1 52.0 
August 6, 20210.525 51.0 1.1 52.1 
November 5, 20210.525 51.0 1.0 52.0 
2021 total distributions
$2.10 $203.8 $4.3 $208.1 
February 4, 2022$0.525 $51.1 $1.2 $52.3 
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Announced Quarterly Distribution
On April 14, 2022, we announced a cash distribution of $0.525 per unit on our common units. The distribution will be paid on May 6, 2022 to common unitholders of record as of the close of business on April 25, 2022.
DRIP
During the three months ended March 31, 2022, distributions of $0.5 million were reinvested under the DRIP resulting in the issuance of 32,648 common units.
Warrants
As of March 31, 2022 and December 31, 2021, we had two tranches of warrants outstanding, which includes warrants to purchase (i) 5,000,000 common units with a strike price of $17.03 per common unit and (ii) 10,000,000 common units with a strike price of $19.59 per common unit (collectively, the “Warrants”). The Warrants may be exercised by the holders at any time before April 2, 2028.
Loss Per Unit
The computation of loss per unit is based on the weighted average number of participating securities, which includes our common units and certain equity-based awards, outstanding during the applicable period. Basic loss per unit is determined by dividing net income (loss) allocated to participating securities after deducting the amount distributed on Preferred Units, by the weighted average number of participating securities outstanding during the period. Loss attributable to unitholders is allocated to participating securities based on their respective shares of the distributed and undistributed earnings for the period. To the extent cash distributions exceed net income (loss) attributable to unitholders for the period, the excess distributions are allocated to all participating securities outstanding based on their respective ownership percentages.
Diluted loss per unit is computed using the treasury stock method, which considers the potential issuance of limited partner units associated with our long-term incentive plan and Warrants. Unvested phantom units and unexercised Warrants are not included in basic loss per unit, as they are not considered to be participating securities, but are included in the calculation of diluted loss per unit to the extent they are dilutive, and in the case of Warrants to the extent that they were considered “in the money.”
For the three months ended March 31, 2022, approximately 803,000 and 13,000 incremental unvested phantom units and “in the money” outstanding Warrants, respectively, were excluded from the calculation of diluted loss per unit because the impact was anti-dilutive. Our outstanding Warrants not “in the money” were excluded from the calculation for the three months ended March 31, 2022.
For the three months ended March 31, 2021, approximately 710,000 incremental unvested phantom units were excluded from the calculation of diluted loss per unit because the impact was anti-dilutive, and our outstanding Warrants were not included in the computation as they are not considered “in the money” for the period.
(11) Revenue Recognition
Disaggregation of Revenue
The following table disaggregates our revenue by type of service (in thousands):
Three Months Ended March 31,
20222021
Contract operations revenue$161,486 $155,469 
Retail parts and services revenue1,926 2,044 
Total revenues$163,412 $157,513 
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The following table disaggregates our revenue by timing of provision of services or transfer of goods (in thousands):
Three Months Ended March 31,
20222021
Services provided over time:
Primary term$108,297 $106,561 
Month-to-month53,189 48,908 
Total services provided over time161,486 155,469 
Services provided or goods transferred at a point in time1,926 2,044 
Total revenues$163,412 $157,513 
Contract Assets
We record contract assets when we have completed performance under a contract but our right to consideration is not yet unconditional. We had no contract assets as of March 31, 2022 and December 31, 2021.
Deferred Revenue
We record deferred revenue when cash payments are received or due in advance of our performance. Components of deferred revenue were as follows (in thousands):
Balance sheet locationMarch 31,
2022
December 31,
2021
Current (1)Deferred revenue$51,853 $51,216 
NoncurrentOther liabilities4,740 4,823 
Total$56,593 $56,039 
________________________________
(1)We recognized $42.1 million of revenue during the three months ended March 31, 2022 related to our deferred revenue balance as of December 31, 2021.
Performance Obligations
As of March 31, 2022, the aggregate amount of transaction price allocated to unsatisfied performance obligations related to our contract operations revenue was $437.3 million. We expect to recognize these remaining performance obligations as follows (in thousands):
2022 (remainder)
202320242025ThereafterTotal
Remaining performance obligations$236,615 $126,839 $46,478 $17,181 $10,140 $437,253 
(12) Transactions with Related Parties
We provide compression services to entities affiliated with Energy Transfer, which as of March 31, 2022 owned approximately 47% of our limited partner interests and 100% of the General Partner. Revenue recognized from such affiliated Energy Transfer entities on our unaudited condensed consolidated statements of operations were as follows (in thousands):
Three Months Ended March 31,
 20222021
Related party revenues$3,818 $2,950 
We had approximately $201,000 and $18,000 within related party receivables on our unaudited condensed consolidated balance sheets as of March 31, 2022 and December 31, 2021, respectively, from such affiliated Energy Transfer entities. Additionally, the Partnership had a $44.9 million related party receivable from Energy Transfer as of March 31, 2022 and December 31, 2021 related to indemnification for sales tax contingencies. See Note 13 for more information related to such sales tax contingencies.
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(13) Commitments and Contingencies
(a)Major Customers
We did not have revenue from any single customer representing 10% or more of total revenue for the three months ended March 31, 2022 or 2021.
(b)Litigation
From time to time, we and our subsidiaries may be involved in various claims and litigation arising in the ordinary course of business. In management’s opinion, the resolution of such matters is not expected to have a material adverse effect on our consolidated financial position, results of operations or cash flows.
(c)Equipment Purchase Commitments
Our future capital commitments are comprised of binding commitments under purchase orders for new compression units ordered but not received. The commitments as of March 31, 2022 were $60.8 million, all of which is expected to be settled within the next twelve months and $40.1 million of which we expect to settle in the remainder of 2022.
(d)Sales Tax Contingencies
Our compliance with state and local sales tax regulations is subject to audit by various taxing authorities. Certain taxing authorities have either claimed or issued an assessment that specific operational processes, which we and others in our industry regularly conduct, result in transactions that are subject to state sales taxes. We and others in our industry have disputed these claims and assessments based on either existing tax statutes or published guidance by the taxing authorities.
We are currently protesting certain assessments made by the Oklahoma Tax Commission (“OTC”). We believe it is reasonably possible that we could incur losses related to this assessment depending on whether the administrative law judge assigned by the OTC accepts our position that the transactions are not taxable and we ultimately lose any and all subsequent legal challenges to such determination. We estimate that the range of losses we could incur is from $0 to approximately $21.0 million, including penalty and interest.
As of March 31, 2022 and December 31, 2021, we have recorded a $44.9 million accrued liability and $44.9 million related party receivable from Energy Transfer related to open audits with the Office of the Texas Comptroller of Public Accounts (the “Comptroller”), wherein the Comptroller has challenged the applicability of the manufacturing exemption.
For more information, see Note 16 to the consolidated financial statements included in our 2021 Annual Report.
(14) Subsequent Event
On April 27, 2022, the tranche of warrants with the right to purchase 5,000,000 common units with a strike price of $17.03 per common unit was exercised in full by the holders. The exercise of the warrants was net settled by the Partnership for 534,308 common units.
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ITEM 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations
USA Compression Partners, LP (the “Partnership”) is a growth-oriented Delaware limited partnership. We are managed by our general partner, USA Compression GP, LLC (the “General Partner”), which is wholly owned by Energy Transfer. All references in this section to the Partnership, as well as the terms “our,” “we,” “us” and “its” refer to USA Compression Partners, LP, together with its consolidated subsidiaries, unless the context otherwise requires or where otherwise indicated.
DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS
This report contains “forward-looking statements.” All statements other than statements of historical fact contained in this report are forward-looking statements, including, without limitation, statements regarding our plans, strategies, prospects and expectations concerning our business, results of operations and financial condition. You can identify many of these statements by looking for words such as “believe,” “expect,” “intend,” “project,” “anticipate,” “estimate,” “continue,” “if,” “outlook,” “will,” “could,” “should,” or similar words or the negatives thereof.
Known material factors that could cause our actual results to differ from those in these forward-looking statements are described in Part I, Item 1A “Risk Factors” of our 2021 Annual Report on Form 10-K, as well as our subsequent filings with the SEC. Important factors that could cause our actual results to differ materially from the expectations reflected in these forward-looking statements include, among other things:
changes in the long-term supply of and demand for crude oil and natural gas, including as a result of the severity and duration of world health events, including the COVID-19 pandemic, related economic repercussions, actions taken by governmental authorities and other third parties in response to such events and the resulting disruption in the oil and gas industry and impact on demand for oil and gas;
changes in general economic conditions, including inflation or supply chain disruptions, and changes in economic conditions of the crude oil and natural gas industries, including any impact from the military conflict involving Russia and Ukraine;
competitive conditions in our industry, including competition for employees in a tight labor market;
renegotiation of material terms of customer contracts;
actions taken by our customers, competitors and third-party operators;
changes in the availability and cost of capital, including changes to interest rates;
operating hazards, natural disasters, epidemics, pandemics (such as COVID-19), weather-related impacts, casualty losses and other matters beyond our control;
operational challenges relating to COVID-19 and efforts to mitigate the spread of the virus, including logistical challenges, protecting the health and well-being of our employees, remote work arrangements, performance of contracts and supply chain disruptions;
the deterioration of the financial condition of our customers, which may result in the initiation of bankruptcy proceedings with respect to customers;
the restrictions on our business that are imposed under our long-term debt agreements;
information technology risks including the risk from cyberattacks;
the effects of existing and future laws and governmental regulations;
the effects of future litigation; and
our ability to realize the anticipated benefits of acquisitions.
Many of the foregoing risks and uncertainties are, and will be, exacerbated by the COVID-19 pandemic and any consequent impact on the global business and economic environment. New factors emerge from time to time, and it is not possible for us to predict all such factors. Should one or more of the risks or uncertainties described in this Quarterly Report occur, or should underlying assumptions prove incorrect, actual results and plans could differ materially from those expressed in any forward-looking statements.
All forward-looking statements included in this report are based on information available to us on the date of this report and speak only as of the date of this report. 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
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oral forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the foregoing cautionary statements.
Operating Highlights
The following table summarizes certain horsepower and horsepower utilization percentages for the periods presented and excludes certain gas treating assets for which horsepower is not a relevant metric.
Three Months Ended March 31,Percent
Change
20222021
Fleet horsepower (at period end) (1)3,687,518 3,720,745 (0.9)%
Total available horsepower (at period end) (2)3,710,018 3,724,885 (0.4)%
Revenue generating horsepower (at period end) (3)2,987,624 2,987,627 — %
Average revenue generating horsepower (4)2,978,422 2,994,418 (0.5)%
Average revenue per revenue generating horsepower per month (5)$16.87 $16.60 1.6 %
Revenue generating compression units (at period end)3,949 3,942 0.2 %
Average horsepower per revenue generating compression unit (6)756 758 (0.3)%
Horsepower utilization (7):
At period end86.1 %83.1 %3.6 %
Average for the period (8)84.9 %83.1 %2.2 %
________________________________
(1)Fleet horsepower is horsepower for compression units that have been delivered to us (and excludes units on order). As of March 31, 2022, we had 75,000 large horsepower on order for delivery, all of which is expected to be delivered within the next twelve months and 50,000 horsepower of which we expect to be delivered in the remainder of 2022.
(2)Total available horsepower is revenue generating horsepower under contract for which we are billing a customer, horsepower in our fleet that is under contract but is not yet generating revenue, horsepower not yet in our fleet that is under contract but not yet generating revenue and that is subject to a purchase order, and idle horsepower. Total available horsepower excludes new horsepower on order for which we do not have an executed compression services contract.
(3)Revenue generating horsepower is horsepower under contract for which we are billing a customer.
(4)Calculated as the average of the month-end revenue generating horsepower for each of the months in the period.
(5)Calculated as the average of the result of dividing the contractual monthly rate, excluding standby or other temporary rates, for all units at the end of each month in the period by the sum of the revenue generating horsepower at the end of each month in the period.
(6)Calculated as the average of the month-end revenue generating horsepower per revenue generating compression unit for each of the months in the period.
(7)Horsepower utilization is calculated as (i) the sum of (a) revenue generating horsepower, (b) horsepower in our fleet that is under contract but is not yet generating revenue, and (c) horsepower not yet in our fleet that is under contract but not yet generating revenue and that is subject to a purchase order, divided by (ii) total available horsepower less idle horsepower that is under repair. Horsepower utilization based on revenue generating horsepower and fleet horsepower as of March 31, 2022 and 2021 was 81.0% and 80.3%, respectively.
(8)Calculated as the average utilization for the months in the period based on utilization at the end of each month in the period. Average horsepower utilization based on revenue generating horsepower and fleet horsepower for the three months ended March 31, 2022 and 2021 was 80.7% and 80.4%, respectively.
The 1.6% increase in average revenue per revenue generating horsepower per month during the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to select price increases on our existing fleet.
Horsepower utilization increased to 86.1% as of March 31, 2022 compared to 83.1% as of March 31, 2021. Average horsepower utilization increased to 84.9% during the three months ended March 31, 2022 compared to 83.1% during the three months ended March 31, 2021. The 3.6% and 2.2% increases in horsepower utilization and average horsepower utilization, respectively, were primarily due to an increase in horsepower that is on-contract or pending-contract but not yet active, which was driven by a combination of previously idle units as well as new units added to the fleet. We believe the increase in average horsepower utilization is the result of increased demand for our services commensurate with increased operating activity in the oil and gas industry.
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Financial Results of Operations
Three months ended March 31, 2022 compared to the three months ended March 31, 2021
The following table summarizes our results of operations for the periods presented (dollars in thousands):
Three Months Ended March 31,Percent
Change
20222021
Revenues:
Contract operations$157,668 $152,525 3.4 %
Parts and service1,926 2,038 (5.5)%
Related party3,818 2,950 29.4 %
Total revenues163,412 157,513 3.7 %
Costs and expenses:
Cost of operations, exclusive of depreciation and amortization53,732 48,628 10.5 %
Depreciation and amortization59,064 61,030 (3.2)%
Selling, general and administrative15,265 13,800 10.6 %
Gain on disposition of assets(179)(1,255)(85.7)%
Impairment of compression equipment432 2,550 (83.1)%
Total costs and expenses128,314 124,753 2.9 %
Operating income35,098 32,760 7.1 %
Other income (expense):
Interest expense, net(31,838)(32,288)(1.4)%
Other20 25 (20.0)%
Total other expense(31,818)(32,263)(1.4)%
Net income before income tax expense3,280 497           *
Income tax expense26 126 (79.4)%
Net income$3,254 $371           *
________________________________
*Not meaningful
Contract operations revenue. The $5.1 million increase in contract operations revenue for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to (i) select price increases on our existing fleet resulting in a 1.6% increase in average revenue per revenue generating horsepower per month, (ii) compression units moving from standby to full billing rate since the previous period and (iii) an increase in our natural gas treating services. These increases were partially offset by a 0.5% decrease in average revenue generating horsepower.
Our contract operations revenue was not materially impacted by any renegotiations of our contracts during the period with our customers. Additionally, average revenue per revenue generating horsepower per month associated with our compression services provided on a month-to-month basis did not significantly differ from the average revenue per revenue generating horsepower per month associated with our compression services provided under contracts in their primary term during the period.
Parts and service revenue. The $0.1 million decrease in parts and service revenue for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to a decrease in maintenance work performed on units at our customers’ locations that are outside the scope of our core maintenance activities and offered as a courtesy to our customers, and freight and crane charges that are directly reimbursable by customers. Demand for retail parts and services fluctuates from period to period based on the varying needs of our customers.
Related party revenue. Related party revenue was earned through related party transactions in the ordinary course of business with various affiliated entities of Energy Transfer. The $0.9 million increase in related party revenue for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to revenue recognized from entities acquired by Energy Transfer since the previous period.
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Cost of operations, exclusive of depreciation and amortization. The $5.1 million increase in cost of operations, exclusive of depreciation and amortization, for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to (i) a $2.3 million increase in outside maintenance costs due to greater use of third-party labor during the current period, (ii) a $1.5 million increase in direct expenses, primarily driven by fluids and parts, and (iii) a $0.8 million increase in expenses related to our vehicle fleet, primarily due to increased fuel costs. The increases in fluids and fuel costs were primarily related to higher commodity prices.
Depreciation and amortization expense. The $2.0 million decrease in depreciation and amortization expense for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to assets reaching the end of their depreciable lives.
Selling, general and administrative expense. The $1.5 million increase in selling, general and administrative expense for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to (i) a $0.8 million decrease in the reversal of the provision for expected credit losses, (ii) a $0.6 million increase in employee-related expenses, partially offset by (iii) a $0.5 million decrease in unit-based compensation expense.
The change to the provision for expected credit losses is related to a greater improvement in market conditions for customers due to the recovery in commodity prices in the prior period. The decrease in unit-based compensation expense is primarily due to the overall change in our unit price as of March 31, 2022, and the related mark-to-market change to our unit-based compensation liability.
Impairment of compression equipment. The $0.4 million and $2.6 million impairments of compression equipment for the three months ended March 31, 2022 and 2021, respectively, were primarily the result of our evaluations of the future deployment of our idle fleet under the current market conditions at the time. The primary causes for these impairments were: (i) units were not considered marketable in the foreseeable future, (ii) units were subject to excessive maintenance costs or (iii) units were unlikely to be accepted by customers due to certain performance characteristics of the unit, such as the inability to meet current quoting criteria without excessive retrofitting costs. These compression units were written down to their respective estimated salvage values, if any.
As a result of our evaluation during the three months ended March 31, 2022 and 2021, respectively, we determined to retire 10 and 12 compressor units, respectively, for a total of approximately 1,400 and 5,600 horsepower, respectively, that was previously used to provide compression services in our business.
Interest expense, net. The $0.5 million decrease in interest expense, net for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to (i) a decrease in amortization of debt issuance costs related to the amendment and restatement of the Credit Agreement since the prior period, (ii) lower weighted average interest rates under the Credit Agreement, partially offset by (iii) increased borrowings under the Credit Agreement.
The weighted-average interest rate applicable to borrowings under the Credit Agreement was 2.84% and 3.06% for the three months ended March 31, 2022 and 2021, respectively, and the average outstanding borrowings under the Credit Agreement were $540.1 million and $482.4 million for the three months ended March 31, 2022 and 2021, respectively.
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Other Financial Data
The following table summarizes other financial data for the periods presented (dollars in thousands):
Other Financial Data: (1)Three Months Ended
March 31,
Percent
Change
20222021
Gross margin$50,616 $47,855 5.8 %
Adjusted gross margin$109,680 $108,885 0.7 %
Adjusted gross margin percentage (2)67.1 %69.1 %(2.9)%
Adjusted EBITDA$98,423 $99,553 (1.1)%
Adjusted EBITDA percentage (2)60.2 %63.2 %(4.7)%
DCF$50,146 $52,580 (4.6)%
DCF Coverage Ratio0.98 x1.03 x(4.9)%
Cash Coverage Ratio0.99 x1.04 x(4.8)%
________________________________
(1)Adjusted gross margin, Adjusted EBITDA, Distributable Cash Flow (“DCF”), DCF Coverage Ratio and Cash Coverage Ratio are all non-GAAP financial measures. Definitions of each measure, as well as reconciliations of each measure to its most directly comparable financial measure(s) calculated and presented in accordance with GAAP, can be found below under the caption “Non-GAAP Financial Measures.”
(2)Adjusted gross margin percentage and Adjusted EBITDA percentage are calculated as a percentage of revenue.
Gross margin. The $2.8 million increase in gross margin for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was due to (i) a $5.9 million increase in revenues and (ii) a $2.0 million decrease in depreciation and amortization, partially offset by (iii) a $5.1 million increase in cost of operations, exclusive of depreciation and amortization.
Adjusted gross margin. The $0.8 million increase in Adjusted gross margin for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was due to a $5.9 million increase in revenues, partially offset by a $5.1 million increase in cost of operations, exclusive of depreciation and amortization.
Adjusted EBITDA. The $1.1 million decrease in Adjusted EBITDA for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to a $1.9 million increase in selling, general and administrative expenses, excluding unit-based compensation expense, severance charges and transaction expenses, partially offset by a $0.8 million increase in Adjusted gross margin.
DCF. The $2.4 million decrease in DCF for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to (i) a $1.9 million increase in selling, general and administrative expenses, excluding unit-based compensation expense, severance charges and transaction expenses, (ii) a $1.3 million increase in maintenance capital expenditures, partially offset by (iii) a $0.8 million increase in Adjusted gross margin.
Coverage Ratios. The decrease in DCF Coverage Ratio and Cash Coverage Ratio for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to the decrease in DCF.
Liquidity and Capital Resources
Overview
We operate in a capital-intensive industry, and our primary liquidity needs are to finance the purchase of additional compression units and make other capital expenditures, service our debt, fund working capital, and pay distributions. Our principal sources of liquidity include cash generated by operating activities, borrowings under the Credit Agreement and issuances of debt and equity securities, including common units under the DRIP.
We typically utilize cash generated by operating activities and, where necessary, borrowings under the Credit Agreement to service our debt, fund working capital, fund our estimated expansion capital expenditures, fund our maintenance capital expenditures and pay distributions to our unitholders. Covenants in the Credit Agreement and other debt instruments require that we maintain certain leverage ratios, and if we predict that we may violate those covenants in the future we could: (i) delay discretionary capital spending and reduce operating expenses; (ii) request an amendment to the Credit Agreement; (iii) reduce or suspend distributions to our unitholders; or (iv) issue equity securities, including under the DRIP.
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Because we distribute all of our available cash, which excludes prudent operating reserves, we expect to fund any future expansion capital expenditures or acquisitions primarily with capital from external financing sources, such as borrowings under the Credit Agreement and issuances of debt and equity securities, including under the DRIP.
Capital Expenditures
The compression services business is capital intensive, requiring significant investment to maintain, expand and upgrade existing operations. Our capital requirements have consisted primarily of, and we anticipate that our capital requirements will continue to consist primarily of, the following:
maintenance capital expenditures, which are capital expenditures made to maintain the operating capacity of our assets and extend their useful lives, to replace partially or fully depreciated assets, or other capital expenditures that are incurred in maintaining our existing business and related operating income; and
expansion capital expenditures, which are capital expenditures made to expand the operating capacity or operating income capacity of assets, including by acquisition of compression units or through modification of existing compression units to increase their capacity, or to replace certain partially or fully depreciated assets that were not currently generating operating income.
We classify capital expenditures as maintenance or expansion on an individual asset basis. Over the long term, we expect that our maintenance capital expenditure requirements will continue to increase as the overall size and age of our fleet increases. Our aggregate maintenance capital expenditures for the three months ended March 31, 2022 and 2021 were $5.8 million and $4.5 million, respectively. We currently plan to spend approximately $23.0 million in maintenance capital expenditures for the year 2022, including parts consumed from inventory.
Without giving effect to any equipment we may acquire pursuant to any future acquisitions, we currently have budgeted between $95.0 million and $105.0 million in expansion capital expenditures for the year 2022. Our expansion capital expenditures for the three months ended March 31, 2022 and 2021 were $20.1 million and $4.2 million, respectively.
As of March 31, 2022, we had binding commitments to purchase $60.8 million of additional compression units and serialized parts, all of which is expected to be settled within the next twelve months and $40.1 million of which we expect to settle in the remainder of 2022.
Cash Flows
The following table summarizes our sources and uses of cash for the three months ended March 31, 2022 and 2021 (in thousands):
Three Months Ended March 31,
20222021
Net cash provided by operating activities$35,054 $39,612 
Net cash used in investing activities(19,714)(4,206)
Net cash used in financing activities(15,325)(35,309)
Net cash provided by operating activities. The $4.6 million decrease in net cash provided by operating activities for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was due to a $0.4 million decrease in net income, as adjusted for non-cash items, and changes in working capital.
Net cash used in investing activities. The $15.5 million increase in net cash used in investing activities for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to a $14.0 million increase in capital expenditures, for purchases of new compression units, related equipment and reconfiguration costs, and a $1.5 million decrease in proceeds received from insurance recovery.
Net cash used in financing activities. The $20.0 million decrease in net cash used in financing activities for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily due to an increase in net borrowings of $20.3 million under the Credit Agreement.
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Revolving Credit Facility
As of March 31, 2022, we had outstanding borrowings under the Credit Agreement of $565.5 million, $1.0 billion of borrowing base availability and, subject to compliance with the applicable financial covenants, available borrowing capacity of $224.4 million. As of March 31, 2022, we were in compliance with all of our covenants under the Credit Agreement.
As of April 26, 2022, we had outstanding borrowings under the Credit Agreement of $548.9 million.
For a more detailed description of the Credit Agreement, see Note 8 to our unaudited condensed consolidated financial statements in Part I, Item 1 “Financial Statements” of this report and Note 9 to the consolidated financial statements in Part II, Item 8 “Financial Statements and Supplementary Data” included in our 2021 Annual Report.
Senior Notes
As of March 31, 2022, we had $725.0 million and $750.0 million aggregate principal amount outstanding on our Senior Notes 2026 and Senior Notes 2027, respectively.
The Senior Notes 2026 are due on April 1, 2026 and accrue interest at the rate of 6.875% per year. Interest on the Senior Notes 2026 is payable semi-annually in arrears on each of April 1 and October 1.
The Senior Notes 2027 are due on September 1, 2027 and accrue interest at the rate of 6.875% per year. Interest on the Senior Notes 2027 is payable semi-annually in arrears on each of March 1 and September 1.
For more detailed descriptions of the Senior Notes 2026 and Senior Notes 2027, see Note 8 to our unaudited condensed consolidated financial statements in Part I, Item 1 “Financial Statements” of this report and Note 9 to the consolidated financial statements in Part II, Item 8 “Financial Statements and Supplementary Data” included in our 2021 Annual Report.
DRIP
During the three months ended March 31, 2022, distributions of $0.5 million were reinvested under the DRIP resulting in the issuance of 32,648 common units. Such distributions are treated as non-cash transactions in the accompanying unaudited condensed consolidated statements of cash flows included under Part I, Item 1 “Financial Statements” of this report.
Non-GAAP Financial Measures
Adjusted Gross Margin
Adjusted gross margin is a non-GAAP financial measure. We define Adjusted gross margin as revenue less cost of operations, exclusive of depreciation and amortization expense. We believe that Adjusted gross margin is useful as a supplemental measure to investors of our operating profitability. Adjusted gross margin is impacted primarily by the pricing trends for service operations and cost of operations, including labor rates for service technicians, volume and per unit costs for lubricant oils, quantity and pricing of routine preventative maintenance on compression units and property tax rates on compression units. Adjusted gross margin should not be considered an alternative to, or more meaningful than, gross margin or any other measure of financial performance presented in accordance with GAAP. Moreover, Adjusted gross margin as presented may not be comparable to similarly titled measures of other companies. Because we capitalize assets, depreciation and amortization of equipment is a necessary element of our costs. To compensate for the limitations of Adjusted gross margin as a measure of our performance, we believe that it is important to consider gross margin determined under GAAP, as well as Adjusted gross margin, to evaluate our operating profitability.
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The following table reconciles Adjusted gross margin to gross margin, its most directly comparable GAAP financial measure, for each of the periods presented (in thousands):
Three Months Ended March 31,
20222021
Total revenues$163,412 $157,513 
Cost of operations, exclusive of depreciation and amortization(53,732)(48,628)
Depreciation and amortization(59,064)(61,030)
Gross margin$50,616 $47,855 
Depreciation and amortization59,064 61,030 
Adjusted gross margin$109,680 $108,885 
Adjusted EBITDA
We define EBITDA as net income (loss) before net interest expense, depreciation and amortization expense, and income tax expense (benefit). We define Adjusted EBITDA as EBITDA plus impairment of compression equipment, impairment of goodwill, interest income on capital lease, unit-based compensation expense (benefit), severance charges, certain transaction expenses, loss (gain) on disposition of assets and other. We view Adjusted EBITDA as one of management’s primary tools for evaluating our results of operations, and we track this item on a monthly basis both as an absolute amount and as a percentage of revenue compared to the prior month, year-to-date, prior year and budget. Adjusted EBITDA is used as a supplemental financial measure by our management and external users of our financial statements, such as investors and commercial banks, to assess:
the financial performance of our assets without regard to the impact of financing methods, capital structure or historical cost basis of our assets;
the viability of capital expenditure projects and the overall rates of return on alternative investment opportunities;
the ability of our assets to generate cash sufficient to make debt payments and to pay distributions; and
our operating performance as compared to those of other companies in our industry without regard to the impact of financing methods and capital structure.
We believe that Adjusted EBITDA provides useful information to investors because, when viewed with our GAAP results and the accompanying reconciliations, it may provide a more complete understanding of our performance than GAAP results alone. We also believe that external users of our financial statements benefit from having access to the same financial measures that management uses in evaluating the results of our business.
Adjusted EBITDA should not be considered an alternative to, or more meaningful than, net income (loss), operating income (loss), cash flows from operating activities or any other measure of financial performance or liquidity presented in accordance with GAAP as measures of operating performance and liquidity. Moreover, our Adjusted EBITDA as presented may not be comparable to similarly titled measures of other companies.
Because we use capital assets, depreciation, impairment of compression equipment, loss (gain) on disposition of assets and the interest cost of acquiring compression equipment are also necessary elements of our costs. Unit-based compensation expense related to equity awards to employees is also a necessary component of our business. Therefore, measures that exclude these elements have material limitations. To compensate for these limitations, we believe that it is important to consider both net income (loss) and net cash provided by operating activities determined under GAAP, as well as Adjusted EBITDA, to evaluate our financial performance and our liquidity. Our Adjusted EBITDA excludes some, but not all, items that affect net income (loss) and net cash provided by operating activities, and these measures may vary among companies. Management compensates for the limitations of Adjusted EBITDA as an analytical tool by reviewing the comparable GAAP measures, understanding the differences between the measures and incorporating this knowledge into their decision making processes.
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The following table reconciles Adjusted EBITDA to net income and net cash provided by operating activities, its most directly comparable GAAP financial measures, for each of the periods presented (in thousands):
Three Months Ended March 31,
20222021
Net income$3,254 $371 
Interest expense, net31,838 32,288 
Depreciation and amortization59,064 61,030 
Income tax expense26 126 
EBITDA$94,182 $93,815 
Interest income on capital lease— 48 
Unit-based compensation expense (1)3,710 4,182 
Transaction expenses (2)27 — 
Severance charges251 213 
Gain on disposition of assets(179)(1,255)
Impairment of compression equipment (3)432 2,550 
Adjusted EBITDA$98,423 $99,553 
Interest expense, net(31,838)(32,288)
Non-cash interest expense1,822 2,281 
Income tax expense(26)(126)
Interest income on capital lease— (48)
Transaction expenses(27)— 
Severance charges(251)(213)
Other(704)(1,349)
Changes in operating assets and liabilities(32,345)(28,198)
Net cash provided by operating activities$35,054 $39,612 
________________________________
(1)For the three months ended March 31, 2022 and 2021, unit-based compensation expense included $1.1 million, for each period, of cash payments related to quarterly payments of DERs on outstanding phantom unit awards. The remainder of the unit-based compensation expense for all periods was primarily related to non-cash adjustments to the unit-based compensation liability.
(2)Represents certain expenses related to potential and completed transactions and other items. We believe it is useful to investors to exclude these expenses.
(3)Represents non-cash charges incurred to write down long-lived assets with recorded values that are not expected to be recovered through future cash flows.
Distributable Cash Flow
We define DCF as net income (loss) plus non-cash interest expense, non-cash income tax expense (benefit), depreciation and amortization expense, unit-based compensation expense (benefit), impairment of compression equipment, impairment of goodwill, certain transaction expenses, severance charges, loss (gain) on disposition of assets, proceeds from insurance recovery and other, less distributions on Preferred Units and maintenance capital expenditures.
We believe DCF is an important measure of operating performance because it allows management, investors and others to compare basic cash flows we generate (after distributions on the Preferred Units but prior to any retained cash reserves established by the General Partner and the effect of the DRIP) to the cash distributions we expect to pay our common unitholders. Using DCF, management can quickly compute the coverage ratio of estimated cash flows to planned cash distributions.
DCF should not be considered an alternative to, or more meaningful than, net income (loss), operating income (loss), cash flows from operating activities or any other measure of financial performance presented in accordance with GAAP as measures of operating performance and liquidity. Moreover, our DCF as presented may not be comparable to similarly titled measures of other companies.
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Because we use capital assets, depreciation, impairment of compression equipment, loss (gain) on disposition of assets, the interest cost of acquiring compression equipment and maintenance capital expenditures are necessary elements of our costs. Unit-based compensation expense related to equity awards to employees is also a necessary component of our business. Therefore, measures that exclude these elements have material limitations. To compensate for these limitations, we believe that it is important to consider both net income (loss) and net cash provided by operating activities determined under GAAP, as well as DCF, to evaluate our financial performance and our liquidity. Our DCF excludes some, but not all, items that affect net income (loss) and net cash provided by operating activities, and these measures may vary among companies. Management compensates for the limitations of DCF as an analytical tool by reviewing the comparable GAAP measures, understanding the differences between the measures and incorporating this knowledge into their decision making processes.
The following table reconciles DCF to net income and net cash provided by operating activities, its most directly comparable GAAP financial measures, for each of the periods presented (in thousands):
Three Months Ended March 31,
20222021
Net income$3,254 $371 
Non-cash interest expense1,822 2,281 
Depreciation and amortization59,064 61,030 
Non-cash income tax benefit(204)(99)
Unit-based compensation expense (1)3,710 4,182 
Transaction expenses (2)27 — 
Severance charges251 213 
Gain on disposition of assets(179)(1,255)
Impairment of compression equipment (3)432 2,550 
Distributions on Preferred Units(12,187)(12,187)
Maintenance capital expenditures (4)(5,844)(4,506)
DCF$50,146 $52,580 
Maintenance capital expenditures5,844 4,506 
Transaction expenses(27)— 
Severance charges(251)(213)
Distributions on Preferred Units12,187 12,187 
Other(500)(1,250)
Changes in operating assets and liabilities(32,345)(28,198)
Net cash provided by operating activities$35,054 $39,612 
________________________________
(1)For the three months ended March 31, 2022 and 2021, unit-based compensation expense included $1.1 million, for each period, of cash payments related to quarterly payments of DERs on outstanding phantom unit awards. The remainder of the unit-based compensation expense for all periods was primarily related to non-cash adjustments to the unit-based compensation liability.
(2)Represents certain expenses related to potential and completed transactions and other items. We believe it is useful to investors to exclude these expenses.
(3)Represents non-cash charges incurred to write down long-lived assets with recorded values that are not expected to be recovered through future cash flows.
(4)Reflects actual maintenance capital expenditures for the period presented. Maintenance capital expenditures are capital expenditures made to maintain the operating capacity of our assets and extend their useful lives, replace partially or fully depreciated assets, or other capital expenditures that are incurred in maintaining our existing business and related cash flow.
Coverage Ratios
DCF Coverage Ratio is defined as DCF divided by distributions declared to common unitholders in respect of such period. Cash Coverage Ratio is defined as DCF divided by cash distributions expected to be paid to common unitholders in respect of such period, after taking into account the non-cash impact of the DRIP. We believe DCF Coverage Ratio and Cash Coverage Ratio are important measures of operating performance because they allow management, investors and others to gauge our
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ability to pay cash distributions to common unitholders using the cash flows that we generate. Our DCF Coverage Ratio and Cash Coverage Ratio as presented may not be comparable to similarly titled measures of other companies.
The following table summarizes certain coverage ratios for the periods presented (dollars in thousands):
Three Months Ended March 31,
20222021
DCF$50,146 $52,580 
Distributions for DCF Coverage Ratio (1)$51,123 $50,937 
Distributions reinvested in the DRIP (2)$508 $401 
Distributions for Cash Coverage Ratio (3)$50,615 $50,536 
DCF Coverage Ratio0.98 x1.03 x
Cash Coverage Ratio0.99 x1.04 x
________________________________
(1)Represents distributions to the holders of our common units as of the record date.
(2)Represents distributions to holders enrolled in the DRIP as of the record date.
(3)Represents cash distributions declared for common units not participating in the DRIP.
Critical Accounting Estimates
The Partnership’s critical accounting estimates are described in Part I, Item 7 “Critical Accounting Estimates” of our 2021 Annual Report. There have been no material changes to our critical accounting estimates since the date of our 2021 Annual Report.
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ITEM 3.    Quantitative and Qualitative Disclosures About Market Risk
Commodity Price Risk
Market risk is the risk of loss arising from adverse changes in market rates and prices. We do not take title to any natural gas or crude oil in connection with our services and, accordingly, have no direct exposure to fluctuating commodity prices. However, the demand for our compression services depends upon the continued demand for, and production of, natural gas and crude oil. Sustained low natural gas or crude oil prices over the long term could result in a decline in the production of natural gas or crude oil, which could result in reduced demand for our compression services. We do not intend to hedge our indirect exposure to fluctuating commodity prices. A one percent decrease in average revenue generating horsepower for the three months ended March 31, 2022 would result in an annual decrease of approximately $6.0 million and $4.0 million in our revenue and Adjusted gross margin, respectively. Adjusted gross margin is a non-GAAP financial measure. For a reconciliation of Adjusted gross margin to gross margin, its most directly comparable financial measure, calculated and presented in accordance with GAAP, please read Part I, Item 2 “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Non-GAAP Financial Measures” of this report.
Interest Rate Risk
We are exposed to market risk due to variable interest rates under the Credit Agreement.
As of March 31, 2022, we had $565.5 million of variable-rate indebtedness outstanding at a weighted-average interest rate of 3.17%. A one percent increase or decrease in the effective interest rate on our variable-rate outstanding debt as of March 31, 2022 would result in an annual increase or decrease in our interest expense of approximately $5.7 million.
For further information regarding our exposure to interest rate fluctuations on our debt obligations, see Note 8 to our unaudited condensed consolidated financial statements under Part I, Item 1 “Financial Statements” of this report. Although we do not currently hedge our variable rate debt, we may, in the future, hedge all or a portion of such debt.
Credit Risk
Our credit exposure generally relates to receivables for services provided. If any significant customer of ours should have credit or financial problems resulting in a delay or failure to pay the amount it owes us, it could have a material adverse effect on our business, financial condition, results of operations and cash flows.
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ITEM 4.    Controls and Procedures
Management’s Evaluation of Disclosure Controls and Procedures
As required by Rule 13a-15(b) of the Exchange Act, we have evaluated, under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Our disclosure controls and procedures are designed to provide reasonable assurance that the information required to be disclosed by us in reports that we file under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosures, and is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC. Based upon the evaluation, our principal executive officer and principal financial officer have concluded that our disclosure controls and procedures were effective as of March 31, 2022 at the reasonable assurance level.
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.
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PART II.  OTHER INFORMATION
ITEM 1.    Legal Proceedings
From time to time, we may be involved in various legal or governmental proceedings and litigation arising in the ordinary course of business. In management’s opinion, the resolution of such matters is not expected to have a material adverse effect on our consolidated financial position, results of operations or cash flows.
ITEM 1A.    Risk Factors
Security holders and potential investors in our securities should carefully consider the risk factors set forth in Part I, Item 1A. “Risk Factors” of our 2021 Annual Report and in subsequent filings we make with the SEC. We have identified these risk factors as important factors that could cause our actual results to differ materially from those contained in any written or oral forward-looking statements made by us or on our behalf.
ITEM 6.    Exhibits
The following documents are filed, furnished or incorporated by reference as part of this report:
Exhibit
Number
Description
3.1
3.2
22.1
31.1*
31.2*
32.1#
32.2#