Unless the context requires otherwise, references in this Annual Report to the "Company," "Solaris," "we," "us" and "our" refer to (i) Solaris Oilfield Infrastructure, LLC ("Solaris LLC") and its consolidated subsidiaries prior to the completion of our initial public offering and (ii) Solaris Oilfield Infrastructure, Inc. ("Solaris Inc.") and its consolidated subsidiaries following the completion of our initial public offering. The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the accompanying financial statements and related notes. This section of this Form 10-K generally discusses 2022 and 2021 items and year-to-year comparisons between 2022 and 2021. Discussions of 2020 items and year-to-year comparisons between 2021 and 2020 that are not included in this Form 10-K can be found in "Part II, Item 7. "Management's Discussion and Analysis of Financial Conditions and Results of Operations" of our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 . The following discussion contains "forward-looking statements" that reflect our plans, estimates, beliefs and expected performance. Our actual results may differ materially from those anticipated as discussed in these forward-looking statements as a result of a variety of risks and uncertainties, including those described above in "Cautionary Statement Regarding Forward-Looking Statements" and "Risk Factors" included elsewhere in this Annual Report, all of which are difficult to predict. In light of these risks, uncertainties and assumptions, the forward-looking events discussed may not occur. We assume no obligation to update any of these forward-looking statements except as otherwise required by law.



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                                    Overview

We design and manufacture specialized equipment, which combined with field technician support, logistics services and our software solutions, enables us to provide a service offering that helps oil and natural gas operators and their suppliers drive efficiencies that reduce operational footprint and costs during the completion phase of well development. Our equipment and services are deployed across active oil and natural gas basins in the United States.



                           Recent Trends and Outlook

Supply and demand dynamics in the oil and natural gas industry remained tight throughout 2022. Continued supply chain tightness, gradual reopening of certain global economies and geopolitical conflicts, among other factors, drove WTI oil prices to fluctuate between $70 per barrel and over $120 per barrel throughout 2022. Henry Hub natural gas prices also fluctuated between $3.70 per MMBtu and nearly $10.00 per MMBtu throughout 2022. While an improvement in commodity prices has historically driven an increase in drilling and completion activity in North America, overall activity levels have been impacted by industry capital discipline and supply chain challenges. Late in December 2022, Henry Hub natural gas prices began to decline to approximately $2.40 per MMBtu at the beginning of February 2023. While the extent and duration of these lower natural gas commodity prices is unknown, a decline in our customers' activity in natural gas basins may impact our overall activity levels.

North American land activity improved throughout 2022 as the Baker Hughes Land rig count increased 52% on average compared to a 52% increase in our fully utilized systems during 2022. Overall, demand for our offerings is predominantly influenced by the level of oil and natural gas well drilling and completion activity. While our fully utilized systems are highly correlated with US land rig count activity over longer periods, timing differences between drilling and completion activity can result in lags of one to two quarters or longer.

In 2022, our system count growth outpaced general activity due to new technology introductions. In 2023, we expect slower general market growth in North American land activity due to continued capital discipline among oil and gas operators and supply chain and labor constraints limiting the addition of additional drilling rig and completion crews. We expect our activity, as measured by fully utilized systems, will continue to outpace the market in 2023 as we enhance our offering and gain additional market share through additional deployments of our new technology.

The sustainability of favorable supply-demand dynamics and a strong commodity environment will depend on multiple factors, including the health of the global economy, any further supply chain disruptions or potential regulatory changes. Continued industry consolidation amongst some of our E&P and oil service customers combined with financial discipline from publicly traded energy companies has reduced industry-wide capital spending, resulting in activity levels that remain below pre-pandemic levels despite the recovery in commodity prices. Additionally, consolidation can drive procurement strategy changes, which has historically resulted in both market share gains and losses for the Company. We expect both consolidation and financial discipline will likely continue to be important themes for the energy industry going forward.



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                             Results of Operations

Year Ended December 31, 2022 Compared to Year Ended December 31, 2021



                                                              Year Ended
                                                             December 31,
                                                           2022         2021         Change

                                                                   (in thousands)

Revenue                                                 $  320,005    $ 159,189    $  160,816
Operating costs and expenses:
Cost of services (exclusive of depreciation)               219,775      115,459       104,316
Depreciation and amortization                               30,433       27,210         3,223
Property tax contingency                                     3,072            -         3,072
Selling, general and administrative                         23,074       19,264         3,810
Other operating expense (income)                             1,847      (2,357)         4,204
Total operating costs and expenses                         278,201      159,576       118,625
Operating income (loss)                                     41,804        (387)        42,191
Interest expense, net                                        (489)        (247)         (242)
Total other expense                                          (489)        (247)         (242)
Income (loss) before income tax expense                     41,315        (634)        41,949
Provision for income taxes                                 (7,803)        (626)       (7,177)
Net income (loss)                                           33,512      (1,260)        34,772

Less: net (income) loss related to non-controlling interests

                                                 (12,354)          392      (12,746)
Net income (loss) attributable to Solaris               $   21,158    $   (868)    $   22,026

Revenue

Revenue increased $160.8 million, or 101%, to $320.0 million for the year ended December 31, 2022 compared to $159.2 million for the year ended December 31, 2021. Revenue increased mainly due to an activity-driven increase in demand for our products and services, as well as new technology introductions and increased pricing. Mobile proppant systems on a fully utilized basis increased from 57 systems for the year ended December 31, 2021 to 86 systems for the year ended December 31, 2022, in response to the increase in industry activity levels and due to activity growth with new and existing customers led by the introduction of new products.

Cost of Services

Cost of services, excluding depreciation and amortization expense, increased $104.3 million, or 90%, to $219.8 million for the year ended December 31, 2022 compared to $115.5 million for the year ended December 31, 2021. The increase was primarily due to an increase in operating costs to support an activity-driven increase in demand for our products and services. Cost of services as a percentage of revenue was 69% and 73% for the year ended December 31, 2022 and 2021, respectively.

Property Tax Contingency

We are subject to a number of state and local taxes that are not income-based. As many of these taxes are subject to assessment and audit by the taxing authorities, it is possible that an assessment or audit could result in additional taxes due. We accrue for additional taxes when we determine that it is probable that we will have incurred a liability and we can reasonably estimate the amount of the liability. On June 16, 2022, Cause Number CV20-09-372, styled Solaris Oilfield Site Services v. Brown County Appraisal District, was presented to the 35th District Court of Brown County, Texas. The 35th District Court of Brown County ruled in favor of Brown County Appraisal District regarding the disqualification of our equipment for certain property tax exemptions. While we are vigorously appealing this ruling, we have recognized $3.1 million in accrued liabilities and cost of services as of and for the the year ended December 31, 2022. If this litigation is ultimately resolved against us, in whole or in part, it is possible that the resolution of this matter could be material to our consolidated results of operations or cash flows.



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Selling, General and Administrative Expenses

Selling, general and administrative expenses, excluding depreciation and amortization, increased $3.8 million, or 20%, to $23.1 million for the year ended December 31, 2022 compared to $19.3 million for the year ended December 31, 2021. The increase is primarily due to increases in headcount and professional fees.

Other Operating Expense (Income)

Other operating expense (income) decreased $4.2 million, or 178% to expense of $1.8 million for the year ended December 31, 2022 compared to income of $2.4 million for the year ended December 31, 2021. Other operating expense in the twelve months ended December 31, 2022 primarily relate to loss on disposal of assets, change in the TRA liability, credit losses, gain on insurance claims and other settlements, and costs related to the evaluation of potential acquisitions. Other operating income in the twelve months ended December 31, 2021 primarily relate to employee retention credits, credit losses, gain on insurance claims, transaction costs, and loss on disposal of assets.

Provision for Income Taxes

During the year ended December 31, 2022, we recognized a combined United States federal and state expense for income taxes of $7.8 million, an increase of $7.2 million as compared to the $0.6 million income tax expense we recognized during the year ended December 31, 2021. This change was attributable to operating gains. The effective combined United States federal and state income tax rates were 18.9% and (98.7)% for the year ended December 31, 2022 and 2021, respectively. The effective tax rate differed from the statutory rate primarily due to Solaris LLC's treatment as a partnership for United States federal income tax purposes.



                   Comparison of Non-GAAP Financial Measures

We view EBITDA and Adjusted EBITDA as important indicators of performance. We define EBITDA as net income, plus (i) depreciation and amortization expense, (ii) interest expense and (iii) income tax expense, including franchise taxes. We define Adjusted EBITDA as EBITDA plus (i) stock-based compensation expense and (ii) certain non-cash items and any extraordinary, unusual or non-recurring gains, losses or expenses.



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EBITDA and Adjusted EBITDA should not be considered in isolation or as substitutes for an analysis of our results of operation and financial condition as reported in accordance with accounting standards generally accepted in the United States ("GAAP"). Net income is the GAAP measure most directly comparable to EBITDA and Adjusted EBITDA. EBITDA and Adjusted EBITDA should not be considered alternatives to net income presented in accordance with GAAP. Because EBITDA and Adjusted EBITDA may be defined differently by other companies in our industry, our definitions of EBITDA and Adjusted EBITDA may not be comparable to similarly titled measures of other companies, thereby diminishing their utility.

The following table presents a reconciliation of Net income to EBITDA and Adjusted EBITDA for each of the periods indicated.



                                                             Year ended
                                                            December 31,
                                                          2022        2021        Change

                                                                 (in thousands)

Net income (loss)                                       $ 33,512    $ (1,260)    $ 34,772
Depreciation and amortization                             30,433       27,210       3,223
Interest expense, net                                        489          247         242
Income taxes (1)                                           7,803          626       7,177
EBITDA                                                  $ 72,237    $  26,823    $ 45,414
Property tax contingency (2)                               3,072            -       3,072
Stock-based compensation expense (3)                       6,092        5,210         882
Employee retention credit (4)                                  -      (2,957)       2,957
Change in payables related to Tax Receivable
Agreement (5)                                              (663)            -       (663)
Credit losses                                              (420)          365       (785)
Other (6)                                                  3,464          625       2,839
Adjusted EBITDA                                         $ 83,782    $  30,066    $ 53,716

(1) Federal and state income taxes.

Property tax contingency represents a reserve related to an unfavorable Texas (2) District Court ruling related to prior period property taxes. The ruling is

currently under appeal.

(3) Represents stock-based compensation expense related to restricted stock.

(4) Employee retention credit as part of the Consolidated Appropriations Act of

2021, net of administrative fees.

(5) Reduction in liability due to state tax rate change.

(6) Other includes loss on disposal of assets, gain on insurance claims and other

settlements, and costs related to the evaluation of potential acquisitions.

Year Ended December 31, 2022 Compared to Year Ended December 31, 2021: EBITDA and Adjusted EBITDA

EBITDA increased $45.4 million to $72.2 million for the year ended December 31, 2022 compared to $26.8 million for the year ended December 31, 2021. Adjusted EBITDA increased $53.7 million to $83.8 million for the year ended December 31, 2022 compared to $30.1 million for the year ended December 31, 2021. The increases in EBITDA and Adjusted EBITDA were primarily due to the changes in revenues and expenses, discussed above.



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                        Liquidity and Capital Resources

Overview

Our primary sources of liquidity to date have been cash flows from operations, borrowings under our credit agreements and proceeds from equity offerings. Our primary uses of capital have been to fund ongoing operations, capital expenditures to support organic growth, including our fleet development and related maintenance and fleet upgrades, repurchase shares of Class A common stock in the open market, and pay dividends. Although no assurance can be given, depending upon market conditions and other factors, we may also have the ability to issue additional equity and debt if needed.

As of December 31, 2022, cash and cash equivalents totaled $8.8 million. We have $8.0 million in borrowings outstanding under our Credit Agreement and have $42.0 million of available borrowing capacity. We believe that our cash on hand, operating cash flow and available borrowings under our Credit Agreement will be sufficient to fund our operations for the next 12 months and beyond. See Note 8. "Senior Secured Credit Facility" under Item 8. "Financial Statements and Supplementary Data" for additional information regarding our Credit Facility.

Cash Flows

The following table summarizes our cash flows for the periods indicated:



                                                    Year Ended
                                                  December 31,             Change
                                                2022          2021      2022 vs. 2021

                                                          (in thousands)

Net cash provided by operating activities $ 67,996 $ 16,473 $ 51,523 Net cash used in investing activities (79,539) (19,524) (60,015) Net cash used in financing activities (16,119) (20,818)

            4,699
Net change in cash                           $ (27,662)    $ (23,869)  $       (3,793)

Analysis of Cash Flow Changes for Year Ended December 31, 2022 Compared to Year Ended December 31, 2021

Operating Activities. Net cash provided by operating activities was $68.0 million for the year ended December 31, 2022, compared to net cash provided by operating activities of $16.5 million for the year ended December 31, 2021. The increase of $51.5 million in operating cash flow was primarily attributable to increased profitability from operations.

Investing Activities. Net cash used in investing activities was $79.5 million for the year ended December 31, 2022, compared to $19.5 million for the year ended December 31, 2021. The increase in investing activities of $60.0 million is primarily due to capital expenditures related to new technologies and enhancements to our fleet.

Financing Activities. Net cash used in financing activities of $16.1 million for the year ended December 31, 2022, was primarily related to quarterly dividends of $19.6 million, payments under finance leases of $1.6 million, payments under insurance premium financing of $1.5 million and $1.1 million of payments related to vesting of stock-based compensation, partially offset by net borrowings under the credit agreement of $8.0 million. Net cash used in financing activities of $20.8 million for the year ended December 31, 2021 was primarily related to quarterly dividends of $19.2 million and $0.8 million of payments related to vesting of stock-based compensation.

Future sources and uses of cash

Our material cash commitments consist primarily of obligations under our Credit Agreement, Tax Receivable Agreement, finance and operating leases for property and equipment, and purchase obligations as a part of normal operations. We have no material off balance sheet arrangements as of December 31, 2022, except for purchase commitments under supply agreements disclosed below.



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In 2023, we expect to pay approximately $0.2 million in commitment fees on our Credit Agreement, calculated based on the unused portion of lender commitments, at the applicable commitment fee rate of 0.375%. As of December 31, 2022, if our borrowings under the Credit Agreement remain at $8.0 million, we expect to pay approximately $0.6 million in interest within the next twelve months, calculated based on the weighted average interest rate on the borrowings outstanding as of December 31, 2022 of approximately 7.16%.

We made payments of $1.1 million in January 2023 under the Tax Receivable Agreement. Solaris LLC made a tax distribution to Solaris Inc. of $1.1 million in order to satisfy these obligations and concurrently made a cash distribution on a pro rata basis to each of the other members of Solaris LLC of $0.4 million. Future amounts payable under the Tax Receivable Agreement are dependent upon future events. See Note 10. "Income Taxes" under Item 8. "Financial Statements and Supplementary Data" for additional information regarding the Tax Receivable Agreement.

See Note 7. "Leases" under Item 8. "Financial Statements and Supplementary Data" for additional information regarding scheduled maturities of finance and operating leases.

As of December 31, 2022, we had purchase obligations of approximately $29.7 million payable within the next twelve months. See Note 12. "Commitments and Contingencies" under Item 8. "Financial Statements and Supplementary Data" for information regarding scheduled contractual obligations.



                   Critical Accounting Policies and Estimates

The preparation of financial statements requires the use of judgments and estimates. Our critical accounting policies are described below to provide a better understanding of how we develop our assumptions and judgments about future events and related estimates and how they can impact our financial statements. A critical accounting estimate is one that requires our most difficult, subjective or complex estimates and assessments and is fundamental to our results of operations.

We base our estimates on historical experience and on various other assumptions we believe to be reasonable according to the current facts and circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We believe the following are the critical accounting policies used in the preparation of our combined financial statements, as well as the significant estimates and judgments affecting the application of these policies. This discussion and analysis should be read in conjunction with our consolidated financial statements and related notes included in this report.

Revenue Recognition

Our revenue is primarily derived from short-term contracts and consists of fees charged to customers for the use of our equipment and labor services, mobilization and transportation of our equipment, services coordinating the transportation of proppant delivery to our equipment, transloading services and for inventory software services, each of which are considered to be separate performance obligations.

The majority of our contracts contain multiple performance obligations, such as work orders containing a combination of equipment, transportation, and labor services. We allocate the transaction price to each performance obligation identified in the contract based on relative stand-alone selling prices, or estimates of such prices, and recognize the related revenue as control of each individual product or service is transferred to the customer, in satisfaction of the corresponding performance obligations. We measure progress using an input method based on resources consumed or expended relative to the total resources expected to be consumed or expended. We assess our customers' ability and intention to pay, which is based on a variety of factors including historical payment experience and financial condition and we typically charge our customers on a weekly or monthly basis.

Variable consideration typically may relate to discounts, price concessions and incentives. The Company estimates variable consideration based on the amount of consideration we expect to receive. The Company accrues revenue on an ongoing basis to reflect updated information for variable consideration as performance obligations are met.



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Value of Long-Lived Assets, Definite-Lived Intangible Assets and Goodwill

We carry a variety of long-lived assets on our balance sheet including property, plant and equipment, goodwill and other intangibles. Impairment is the condition that exists when the carrying amount of a long-lived asset exceeds its fair value, and any impairment charge that we record reduces our operating income. Goodwill is the excess of the cost of an acquired entity over the net of the amounts assigned to assets acquired and liabilities assumed. We conduct impairment tests on goodwill annually, on October 31, or more frequently whenever events or changes in circumstances indicate an impairment may exist. We conduct impairment tests on long-lived assets, other than goodwill, whenever events or changes in circumstances indicate that the carrying value may not be recoverable.

Key estimates relate to the fair value and recoverability of carrying values of long-lived assets, definite-lived intangible assets and goodwill. These estimates include management's short-term and long-term forecast of operating performance, including revenue growth rates and expected profitability margins, estimates of the remaining useful life and service potential of the assets, a discount rate based on our weighted average cost of capital, forecasted capital expenditures and the timing of expected future cash flows based on market conditions. Impairment assessments also incorporate inherent uncertainties, including projected commodity pricing, supply and demand for our services and future market conditions, which are difficult to predict in volatile economic and actual results could materially differ from the estimated assumptions utilized in our forecasts.

If market conditions deteriorate, including crude oil prices significantly declining and remaining at low levels for a sustained period of time, we could be required to record impairments of the carrying value of our long-lived assets, definite-lived intangible assets or goodwill in the future which could have a material adverse impact on our operating results.

Income Taxes

Solaris Inc. is a corporation and, as a result, is subject to United States federal, state and local income taxes. For the year ended December 31, 2022 we recognized a combined United States federal and state expense for income taxes of $7.8 million. For the year ended December 31, 2021 we recognized an income tax expense of $0.6 million. Solaris LLC is treated as a partnership for United States federal income tax purposes and therefore does not pay federal income tax on its taxable income. Instead, the Solaris LLC members are liable for federal income tax on their respective shares of the Company's taxable income reported on the members' United States federal income tax returns.

We determine deferred tax assets and liabilities on the basis of the differences between the book value and tax bases of assets and liabilities by using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period in which the enactment date occurs.

We routinely evaluate the realizability of our deferred tax assets by assessing the likelihood that our deferred tax assets will be recovered based on all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, estimates of future taxable income, tax planning strategies and results of operations. Estimating future taxable income is inherently uncertain and requires judgment. In projecting future taxable income, we consider our historical results and incorporate certain assumptions, including revenue growth and operating margins, among others. As of December 31, 2022 and 2021, we had $55.4 million and $62.9 million of deferred tax assets, respectively.

See Note 10. "Income Taxes" under Part II, Item 8. "Financial Statements and Supplementary Data." for additional information.

Tax Receivable Agreement

As described in Note 10. "Income Taxes" under Part II, Item 8. "Financial Statements and Supplementary Data", Solaris Inc. is a party to the Tax Receivable Agreement under which it is contractually committed to pay the TRA Holders 85% of the net cash savings, if any, in United States federal, state and local income tax and franchise tax that Solaris Inc. actually realizes or is deemed to realize in certain circumstances in periods after our initial public offering as a result of certain increases in tax basis, and certain tax benefits attributable to imputed interest as a result of Solaris



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Inc.'s acquisition (or deemed acquisition for United States federal income tax purposes) of Solaris LLC Units in connection with the IPO or pursuant to an exercise of the Redemption Right or the Call Right (each as defined in the Solaris LLC Agreement) and additional tax basis arising from any payments Solaris Inc. makes under the Tax Receivable Agreement.

The projection of future taxable income involves estimates which require significant judgment. Actual taxable income may differ from our estimates, which could significantly impact the liability relating to the Tax Receivable Agreement. The Company accounts for amounts payable under the Tax Receivable Agreement in accordance with Accounting Standard Codification ("ASC") Topic 450, Contingencies.



                        Recent Accounting Pronouncements

See Note 2. "Summary of Significant Accounting Policies - Recently Issued Accounting Standards" under Item 8. "Financial Statements and Supplementary Data" for a discussion of recent accounting pronouncements.

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