DAWSON GEOPHYSICAL CO

To the Stockholders and Board of Directors of

Dawson Geophysical Company

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Dawson Geophysical Company and its subsidiaries (the Company) as of December 31, 2025 and 2024, the related consolidated statements of operations and comprehensive loss, stockholders’ equity and cash flows for the years then ended, and the related notes to the consolidated financial statements (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

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Revenue Recognition – Revenue Recognized Over Time Under Uncompleted Contracts​As described in Note 1 to the financial statements, the Company recognizes revenue for services under cancelable service contracts with customers as the services are performed, using an output method, based on receivers laid out and picked up compared to total receivers anticipated to be recorded on the survey using the total estimated revenue for the service contract. As described in Note 6 to the financial statements, the Company recognized $8.4 million of revenue for the year ended December 31, 2025, on contracts that were uncompleted as of December 31, 2025.​We identified the revenue recognized for the year ended December 31, 2025, under contracts that were uncomplete as of December 31, 2025, as a critical audit matter because of the significant inputs used by management in determining the amount of revenue to recognize prior to completion of all the performance obligations included in

such contracts. Auditing management’s inputs involved an increase in audit effort due to the impact these inputs could have on the accounting estimate.​Our audit procedures related to revenue recognized for the year ended December 31, 2025, under contracts that were uncompleted as of December 31, 2025, included the following, among others:​●We selected a sample of uncompleted contracts as of December 31, 2025, and we performed the following:​-We compared the number of receivers laid out and picked up to logs of such activities prepared by the personnel conducting the surveys, compared the number of total receivers anticipated to be recorded on the surveys to information in the customer contract, recomputed the percentage of completion of the contracts at December 31, 2025, and recomputed the amount of revenue recognized through December 31, 2025.​-We evaluated management’s estimate of the total revenues expected to be recognized upon completion of all performance obligations in the contracts by comparing to actual amounts recognized subsequent to December 31, 2025, and other information available subsequent to December 31, 2025.​-We sent confirmations of certain contract details to the Company’s customers, including total contract price, receivers laid out and picked up through December 31, 2025, and total receivers anticipated to be recorded upon completion of the contract.​​

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/s/RSM US LLP

We have served as the Company's auditor since 2016.

Houston, Texas

March 31, 2026