Basis of Presentation

The accompanying unaudited condensed consolidated financial statements (the “Financial Statements”) have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and the requirements of the SEC. All adjustments necessary for a fair presentation of the Financial Statements have been included. Such adjustments are of a normal, recurring nature. These Financial Statements include the accounts of New Atlas, Old Atlas, Atlas Sand Operating, LLC, a Delaware limited liability company, Socorro, Atlas LLC, Socorro’s wholly-owned subsidiary: Atlas Energy Solutions ProjectCo, LLC (“ProjectCo”) and Atlas LLC’s wholly-owned subsidiaries: Atlas Sand Employee Company, LLC; Atlas Sand Construction, LLC; OLC Kermit, LLC; OLC Monahans, LLC; Fountainhead Logistics, LLC; Fountainhead Transportation Services, LLC; Fountainhead Equipment Leasing, LLC; Wyatt Holdings, LLC; and Wyatt Operating, LLC.

The Company acquired PropFlow and its wholly-owned subsidiaries on July 28, 2025. These Financial Statements include the accounts of PropFlow and the following wholly-owned subsidiaries of PropFlow: PropFlow Operating, LLC; PropFlow International, LLC; and PropFlow Employee Co., LLC.

The Company acquired Moser on February 24, 2025. These Financial Statements include the accounts of Moser AcquisitionCo and Moser Engine Service, Inc. (d/b/a Moser Energy Systems).

The Company acquired the Permian Basin proppant production and logistics businesses and operations of Hi-Crush Inc., a Delaware corporation (“Hi-Crush”) on March 5, 2024. These Financial Statements include the accounts of Hi-Crush Operating, LLC (“Hi-Crush Operating”) (f/k/a Hi-Crush Inc.) and the following wholly-owned subsidiaries of Hi-Crush Operating: Hi-Crush LMS LLC; Hi-Crush Investments LLC; OnCore Processing LLC; Hi-Crush Permian Sand LLC; Hi-Crush PODS LLC; NexStage LLC; FB Logistics LLC; BulkTracer Holdings LLC; PropDispatch LLC; Pronghorn Logistics Holdings, LLC; and Pronghorn Logistics, LLC.

The results of operations for the three months ended March 31, 2026 are not necessarily indicative of the results to be expected for the year ending December 31, 2026 or for any other period. The Financial Statements and these notes should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2025 included within the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025.

Consolidation

The Financial Statements include the accounts of the Company and wholly-owned subsidiaries. All intercompany transactions and accounts have been eliminated in consolidation.

Use of Estimates

The preparation of the Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the related disclosure of contingent assets and liabilities at the date of the Financial Statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates used in the preparation of these Financial Statements include, but are not limited to: the proppant reserves and their impact on calculating the depletion expense under the units-of-production method; the depreciation and amortization associated with property, plant and equipment; stock-based compensation; asset retirement obligations; business combinations; valuation of goodwill and acquired intangible assets; contingent consideration; and certain liabilities. The Company bases its estimates on historical experience and on various assumptions that are believed to be reasonable under the circumstances. Actual results could differ from those estimates.

Business Combination

Business combinations are accounted for using the acquisition method of accounting in accordance with the Accounting Standards Codification (“ASC”) 805, “Business Combinations.” The purchase price is allocated to the assets acquired and liabilities assumed based on their estimated fair values. Fair value of the acquired assets and liabilities is measured in accordance with the guidance of ASC 820, “Fair Value Measurement.” Any excess purchase price over the fair value of the net identifiable assets acquired is recorded as goodwill. Any acquisition-related costs incurred by the Company are expensed as incurred. Operating results of an acquired business are included in the Company’s results of operations from the date of acquisition. We use all available information to estimate fair values, including quoted market prices, the carrying value of acquired assets and assumed liabilities and valuation techniques such as discounted cash flows, relief-from-royalty (“RFR”) method, with or without method, multi-period excess earnings method (“MPEEM”), or cost to recreate method. We engage third-party appraisal firms to assist in the fair value determination of identifiable long-lived assets, identifiable intangible assets, as well as any contingent consideration that provides for additional consideration to be paid to the seller if certain future conditions are met. These estimates are reviewed during the 12-month measurement period and adjusted as soon as the necessary information becomes available but no later than one year from the acquisition date. The judgments made in determining the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can materially impact our financial condition or results of operations. The purchase price associated with business combinations can include a holdback liability. The holdback is subject to changes from estimated to actual net working capital amounts and other customary purchase price adjustments. The holdback amount is based on management’s best estimate and may be subject to further adjustments. This amount is recorded in other current liabilities on our condensed consolidated balance sheets.

Cash and Cash Equivalents

Cash and cash equivalents consist of all highly-liquid investments that are readily convertible into cash and have original maturities of three months or less when purchased. As of March 31, 2026, we have deposits of $21.4 million in an Insured Cash Sweep (“ICS”) Deposit Placement Agreement within IntraFi Network LLC facilitated by our bank. The ICS program provides the Company with access to Federal Deposit Insurance Corporation (“FDIC”) insurance for our total cash held within the ICS. We place our remaining cash deposits with high-credit-quality financial institutions. At times, a portion of our cash may be uninsured or in deposit accounts that exceed or are not covered under the FDIC limit.

Accounts Receivable and Allowance for Credit Losses

Accounts receivable are recorded at cost when earned and represent claims against third parties that will be settled in cash. These receivables generally do not bear interest. The carrying value of our receivables, net of allowance for credit losses, represents the estimated collectable amount. If events or changes in circumstances indicate specific receivable balances may be impaired, further consideration is given to our ability to collect those balances and the allowance is adjusted accordingly. We perform credit evaluations of new customers, and sometimes require deposits and prepayments, to mitigate credit risk. When it is probable that all or part of an outstanding balance will not be collected, we establish an allowance for credit losses.

We are exposed to credit losses primarily through sales of products, services, and rentals. We analyze accounts receivable on an individual customer and overall basis through review of historical collection experience and current aging status of our customer accounts. We also consider the financial condition and economic environment of our customers in evaluating the need for an allowance. The Company considers its trade receivables to consist of two portfolio segments: general receivables and shortfall receivables.

General Receivables

General receivables result from fulfilling a performance obligation associated with a customer contract. General receivables were $118.4 million and $120.6 million as of March 31, 2026 and December 31, 2025, respectively, for amounts invoiced with customers. We recognized de minimis credit loss expense for the three months ended March 31, 2026. We did not recognize credit loss expense for the three months ended March 31, 2025.

Shortfall Receivables

Shortfall receivables result when a customer does not meet the minimum purchases over a period of time defined in the applicable contract. Shortfall receivables were $36.1 million and $34.2 million as of March 31, 2026 and December 31, 2025, respectively, for amounts invoiced with customers. We did not recognize credit loss expense for both the three months ended March 31, 2026 and 2025.

As of both March 31, 2026 and December 31, 2025, we had $4.6 million in allowance for credit losses. Allowance for credit losses is included in accounts receivable on the condensed consolidated balance sheets.

Inventories

Inventories include raw sand stockpiles, in-process product, and finished product available for shipment. Inventories are valued at the lower of cost or net realizable value. Cost is determined using a weighted average cost method. Production costs include direct excavation costs, production personnel and benefits costs, processing costs, rental equipment costs, other costs directly attributable to plant operations, depreciation, and depletion.

Spare Part Inventories

Spare part inventories include critical spares, materials and supplies used in the sand and logistics segment along with equipment parts used in the power segment. Spare part inventories are valued at the lower of cost or net realizable value. Cost is determined using either the weighted average cost method or the first-in, first-out (“FIFO”) method.

Goodwill and Acquired Intangible Assets

Goodwill represents the excess of the purchase price over the fair value of the net identifiable assets acquired in a business combination. Goodwill is not amortized, but is reviewed for impairment annually on October 1, or more frequently when events or changes in circumstances indicate that the carrying value may not be recoverable. Judgments regarding indicators of potential impairment are based on market conditions and operational performance of our business. We determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value after considering qualitative, market and other factors. If it is necessary to perform the quantitative assessment to determine if our goodwill is impaired, the fair value is determined using significant unobservable inputs, or Level 3 in the fair value hierarchy. The expected future cash flows used for impairment reviews and related fair value calculations are based on subjective, judgmental assessments of the discount rate, projected volumes of sand sold, and product revenue. If the carrying amount exceeds the fair value, an impairment loss is recognized in the current period in an amount equal to the excess.

The Company amortizes the cost of definite-lived intangible assets on a straight-line basis over their estimated useful lives of 2 to 10 years. These assets are evaluated for impairment when events or changes in circumstances indicate that the carrying amount of the definite-lived intangible assets may not be recoverable.

Other Intangible Assets

Other intangible assets consist of internal-use software. The Company applies the provisions of ASC 350, “Intangibles-Goodwill and Other.” Costs associated with the acquisition of an internal-use software are capitalized when incurred and amortized over the estimated useful life of the license or application, which is generally 1 to 5 years. As of March 31, 2026 and December 31, 2025, the balance of other intangible assets was $5.9 million and $5.4 million, respectively.

Property, Plant and Equipment, Including Depreciation and Depletion

Property, plant and equipment are recorded at cost and depreciated over their estimated useful lives using either the straight-line method or the units of production method. Construction in progress is comprised of assets which have not been placed into service and is not depreciated until the related assets or improvements are ready to be placed into service.

Costs of improvements and remanufacturing of power equipment that extend economic life or improve service potential are capitalized and depreciated over the remaining useful life of the asset, with routine repairs and maintenance expensed as incurred.

Fixed assets are carried at historical cost. Fixed assets, other than plant facilities associated with productive, depletable properties, are depreciated using the straight-line method over the estimated useful lives of the assets as follows:

Mine development project costs are capitalized once the deposit is classified as a proven and probable reserve. Mine development costs include engineering, mineralogical studies, drilling and other related costs to develop the mine and remove the overburden to initially expose the mineral and allow for the construction of an access way. Exploration costs are expensed as incurred and classified as exploration expense.

Mining property and development costs are amortized using the units of production method on estimated recoverable tonnage, which equals estimated proven and probable reserves. The impact to reserve estimates is recognized on a prospective basis. Drilling and related costs are capitalized for deposits where proven and probable reserves exist. These activities are directed at obtaining additional information on the deposit or converting non-reserve minerals to proven and probable reserves, with the benefit being realized over a period greater than one year.

We routinely sell new and used power equipment and invest in new power equipment in order to manage repair and maintenance costs, as well as the composition and size of our power fleet. We also sell used power equipment in response to customer demand for the power equipment. These sales are recorded within product revenue on the condensed consolidated statements of operations.

Impairment or Disposal of Property, Plant and Mine Development

The Company periodically evaluates whether current events or circumstances indicate that the carrying value of our property, plant and equipment assets may not be recoverable. If circumstances indicate that the carrying value may not be recoverable, the Company estimates future undiscounted net cash flows using estimates, including but not limited to estimates of proven and probable sand reserves, estimated future sales prices (considering historical and current prices, price trends and related factors), operating costs and anticipated capital expenditures. If the undiscounted cash flows are less than the carrying value of the assets, the Company recognizes an impairment loss equal to the amount by which the carrying value exceeds the fair value of the assets.

The recoverability of the carrying value of the Company’s mining property and development costs are dependent upon the successful development and commercial production of the Company’s mineral deposit and the related processing facilities. The Company’s evaluation of mineral properties for potential impairment primarily includes evaluating changes in the mineral reserves, or the underlying estimates and assumptions, including estimated production costs. Assessing the economic feasibility requires certain estimates including the prices of products to be produced and processing recovery rates, as well as operating and capital costs.

Asset Retirement Obligations

In accordance with ASC 410-20, “Asset Retirement Obligations”, the Company records a liability for asset retirement obligations at the fair value of the estimated costs to retire a tangible long-lived asset at the time the liability is incurred, when there is a legal obligation to incur costs to retire the asset and when a reasonable estimate of the fair value of the obligation can be made. The Company has asset retirement obligations with respect to certain assets due to various contractual obligations to clean and/or dispose of those assets at the time they are retired.

A liability for the fair value of an asset retirement obligation, with a corresponding increase to the carrying value of related long-lived assets, is recognized at the time of an obligating event. The asset is depreciated using the straight-line method, and the discounted liability is increased through accretion over the expected timing of settlement.

The estimated liability is based on third-party estimates of costs to abandon, including estimated economic lives and external estimates as to the cost to bring the land to a state required by the lease agreements. The Company utilized a discount rate reflecting management’s best estimate of the credit-adjusted risk-free rate. Revisions to the liability could occur due to changes in the estimated costs, changes in the economic life or if federal or state regulators enact new requirements regarding the abandonment. Accretion expense was $0.2 million for both the three months ended March 31, 2026 and 2025. Accretion is recorded on the condensed consolidated statements of operations in depreciation, depletion and accretion expense. The current portion of the asset retirement obligation, $1.8 million, is recorded within other current liabilities and the long-term portion, $7.1 million, is recorded within asset retirement obligations on the Company’s condensed consolidated balance sheets.

Fair Value of Financial Instruments

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

Level 1 – Quoted prices in active markets for identical assets or liabilities.

Level 2 – Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3 – Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability.

The amounts reported in the balance sheets as current assets or liabilities, including cash and cash equivalents, accounts receivable, prepaid expenses and other current assets, accounts payable, accrued liabilities and deferred revenues approximate fair value due to the short-term maturities of these instruments. The Company’s policy is to recognize transfers between levels at the end of the period. This disclosure does not impact the Company’s financial position, results of operations or cash flows.

Fair Value of Contingent Consideration

Contingent consideration represents a recurring fair value estimate of potential future payments. This fair value measurement is based on unobservable inputs, including management estimates and assumptions about the future achievement of milestones and future estimate of revenues, and is, therefore, classified as Level 3 within the fair value hierarchy. Refer to Note 3 - Acquisitions and Note 16 - Fair Value Measurements for further discussion.

Leases

The Company leases office space, equipment, and vehicles under non-cancellable agreements. The Company’s leases may include options to extend or renew at the Company’s discretion. The measurement of the lease term includes options to extend or renew when it is reasonably certain the Company will exercise those options. Lease assets and liabilities are recognized at the commencement date based on the present value of minimum lease payments over the lease term. To determine the present value of future minimum lease payments, the Company uses the implicit rate when readily determinable; however, certain leases do not provide an implicit rate. Therefore, to determine the present value of minimum lease payments, the Company uses the incremental borrowing rate based on the information available at the commencement date of the lease. The Company’s finance lease agreements typically include an interest rate that is used to determine the present value of future lease payments. Short-term operating leases with an initial term of 12 months or less are not recorded on our balance sheet. Minimum lease payments are expensed on a straight-line basis over the lease term, including reasonably certain renewal options.

The Company periodically evaluates whether current events or circumstances indicate that the carrying value of our right-of-use assets exceeds fair value. If such a review should indicate that the carrying amount of right-of-use asset is not recoverable, the Company will reduce the carrying amount of such assets to fair value.

The Company is a lessor as we lease certain power equipment to customers through operating leases. These agreements are short term with terms ranging from monthly to one year. There are no renewal options that are reasonably certain to be exercised, or early termination options based on established terms specific to the individual agreement.

Under Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842), the Company elected the package of practical expedients permitted under the transition guidance within the new standard, including the option to carry forward the historical lease classifications and assessment of initial direct costs, account for lease and non-lease components as a single lease, and to not include leases with an initial term of less than 12 months in the lease assets and liabilities.

Revenues

Under ASC Topic 606 - Revenue from Contracts with Customers (“ASC 606”), revenue recognition is based on the transfer of control, or the customer’s ability to benefit from the services and products in an amount that reflects the consideration expected to be received in exchange for those services and products. In recognizing revenue for products and services, the transaction price is determined from sales orders or contracts with customers.

The Company generates product revenues from the sale of proppant and power equipment that customers purchase for use in the oil and gas industry. Proppant revenues are derived from product sold to customers under supply agreements, the terms of which can extend for over one year, and from spot sales through individual purchase orders executed at prevailing market rates. The Company’s proppant revenues are primarily a function of the price per ton realized and the volumes sold. Pricing structures under the supply agreements are, in certain cases, subject to certain contractual adjustments and consist of a combination of negotiated pricing and fixed pricing. These arrangements may undergo periodic negotiations regarding pricing and volume requirements, which may occur in volatile market conditions. Power equipment revenues are derived from sales agreements with customers for certain equipment.

The Company generates service revenue by providing transportation, wellsite solutions, and contract labor services to companies in the oil and gas industry. Transportation services typically consist of transporting product from the plant facilities to the wellsite. The amounts invoiced reflect the transportation services rendered. The amounts invoiced reflect either the contractual monthly minimum, or the length of time the equipment was utilized in the billing period. Labor services provide the customers with supervisory, logistics, or field personnel. The amounts invoiced for wellsite solutions and contract labor services reflect the amount of time these services were utilized in the billing period. Transportation, wellsite solutions, and contract labor services are contracted through formal agreements or work orders executed under established pricing terms.

The Company generates rental revenue from the power equipment leases. Revenue is based on monthly rental rates and usage. Revenue for agreements that are not considered monthly is recognized in the period earned on a straight-line basis over the term of the contract, regardless of the timing of the billing to customers, or through usage which is variable each month based on activity.

The Company recognizes revenue for product at a point in time following the transfer of control and satisfaction of the performance obligation of such items to the customer, under ASC 606, which typically occurs upon customer pick-up at the facilities for proppant and delivery for power equipment. The Company recognizes revenue for services when services are rendered to the customer and the performance obligation is satisfied. The Company’s standard collection terms are generally 30 days, with certain customer payment terms extending up to 60 days.

Certain of the Company’s contracts contain shortfall provisions that calculate agreed upon fees that are billed when the customer does not meet the minimum purchases over a period of time defined in each contract and when collectability is reasonably certain. As the Company does not have the ability to predict customers’ orders over the period, there are constraints around the ability to recognize the variability in consideration related to this condition. The Company recognized $1.9 million and $12.4 million for shortfall provision revenue for the three months ended March 31, 2026 and 2025, respectively, which was recorded in product revenue in the condensed consolidated statements of operations.

The Company’s revenue was generated in the United States for the three months ended March 31, 2026 and 2025. Revenue is disaggregated by product, service, and rental revenue. No further disaggregation of revenue information is provided.

The Company has elected to use the ASC 606 practical expedients, pursuant to which it has excluded disclosures of transaction prices allocated to remaining performance obligations and when it expects to recognize such revenue. The remaining performance obligations are primarily comprised of unfulfilled contracts to deliver product, most of which hold a remaining duration of less than one year, and of which ultimate transaction prices will be allocated entirely to the unfulfilled contracts. The Company’s transaction prices under these contracts may be impacted by market conditions and potential contract negotiations, which have not yet been determined, and are therefore variable in nature.

The Company has elected to exclude from the measurement of the transaction price all taxes assessed by governmental authorities that are both imposed on and concurrent with a specific revenue-producing transaction and collected by the Company from a customer, such as sales tax, use tax, value-added tax and similar taxes.

Deferred Revenues

The Company occasionally receives prepayments from customers for future deliveries of product or contributions in aid of construction as well as bills customers in excess of recognizable revenue for certain power equipment rental arrangements. Amounts received from customers in advance of product deliveries or amounts billed to customer in excess of recognizable revenue are recorded as contract liabilities referred to as deferred revenues and are recognized as revenue upon delivery of the product or satisfaction of performance obligations. Certain prepayments are secured by collateral interest in certain property, plant and equipment. The Company recognized revenue of $0.2 million and $2.3 million from deferred revenue for the three months ended March 31, 2026 and 2025, respectively.

Stock-Based Compensation

We account for stock-based compensation, including grants of incentive units, restricted stock awards, time-based restricted stock units and performance share units, under the measurement and recognition provisions of ASC 718, “Compensation – Stock Compensation.” We account for stock-based compensation by amortizing the fair value of the stock, which is determined at the grant date, on a straight-line basis unless the tranche method is required.

We account for forfeitures as they occur and reverse any previously recognized stock-based compensation expense for the unvested portion of the awards that were forfeited. The number of forfeited shares will be available for purposes of awards under the Company’s Long Term Incentive Plan (the “LTIP”). Stock-based compensation expense is recognized as selling, general and administrative expense on the Company’s condensed consolidated statements of operations.

Legal Insurance Proceeds

The Company recorded $4.8 million of insurance proceeds for the three months ended March 31, 2026 for legal expense reimbursements recorded within selling, general and administrative expense on the condensed consolidated statements of operations. Within the condensed consolidated balance sheets, $3.3 million was included in cash and cash equivalents as of March 31, 2026 and the remaining $1.5 million that has not been collected was recorded in accounts receivable as of March 31, 2026. The Company did not have legal insurance proceeds for the three months ended March 31, 2025.

Income Taxes

The Company, under ASC 740–Income Taxes (“ASC 740”), computes its quarterly taxes using an estimated annual effective tax rate which is applied to year-to-date pre-tax book net income, except for discrete items. Income taxes associated with discrete items are computed and recorded in the period that the specific transaction occurs.

ASC 740 prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. The Company evaluates the uncertainty in tax positions taken or expected to be taken in the course of preparing the Financial Statements to determine whether the tax positions are more likely than not of being sustained by the applicable tax authority. However, the conclusions regarding the evaluation are subject to review and may change based on factors including, but not limited to, ongoing analysis of tax laws, regulations, and interpretations thereof.

As of March 31, 2026 and December 31, 2025, the Company did not have any liabilities for uncertain tax positions or gross unrecognized tax benefits. Our income tax returns from 2021, 2022, 2023 and 2024 are subject to examinations by U.S. federal, state or local tax authorities. The Company cannot predict or provide assurance as to the ultimate outcome of any existing or future examinations.

Recently Issued Accounting Pronouncements

Financial Instruments–Credit Losses- In July 2025, the FASB issued ASU 2025-05, Financial Instruments–Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, which added a practical expedient that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset when estimating expected credit losses for current accounts receivable and current contract assets. The new standard is effective for annual periods beginning after December 15, 2025. The Company adopted ASU 2025-05 as of January 1, 2026 and there was no material impact on our condensed consolidated financial statements.

Recently Issued Accounting Pronouncements Not Yet Effective

Intangibles-Goodwill and Other-Internal-Use Software- In September 2025, the FASB issued ASU 2025-06, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which removed the language around project stages that was used to assess when costs could be capitalized for an internal-use software. The update also requires internal-use software to be disclosed under the ASC 360 Property, Plant, and Equipment guidance. The new standard is effective for annual periods beginning after December 15, 2027. The Company is currently evaluating the impact on the Financial Statements and related disclosures.

Income Statement Reporting Disclosures- In November 2024, the FASB issued ASU 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40). The amendments in this update requires additional disclosure of certain costs and expenses within the notes to the financial statements. The new standard is effective for annual periods beginning after December 15, 2026 and interim periods beginning after December 15, 2027. The Company is currently evaluating the impact on the Financial Statements and related disclosures.