--- schema_version: "secwatch.filing_event.v1" accession: "0001104659-23-120807" form_type: "8-K" ticker: "DWSN" cik: "0000799165" company_name: "DAWSON GEOPHYSICAL CO" filed_at: "2023-11-22T23:59:59+00:00" generated_at: "2026-06-07T22:25:59.712188+00:00" event_type: "leadership" sentiment: "neutral" materiality_score: 0.55 calibrated_materiality_score: 0.55 confidence: "high" source: SEC EDGAR --- # Dawson Geophysical replaces CEO, CFO, and COO; effective Nov 20 and Dec 20 ## Summary - President/CEO Stephen Jumper, CFO James Brata, and COO Ray Tobias to depart on Dec 20, 2023. - Anthony Clark appointed President and CEO, Ray Mays as COO, effective Nov 20. - Ian Shaw appointed CFO effective Nov 20; he remains employed by Wilks Brothers, LLC. - Ray Mays joined Dawson in April 2023 via the Breckenridge Geophysical asset purchase. - Mr. Shaw is a CPA with prior roles at Approach Resources and Ernst & Young. ## SEC filing metadata - accession: 0001104659-23-120807 - form_type: 8-K - ticker: DWSN - cik: 0000799165 - company_name: DAWSON GEOPHYSICAL CO - filed_at: 2023-11-22T23:59:59+00:00 - event_type: leadership - sentiment: neutral - materiality_score: 0.55 - calibrated_materiality_score: 0.55 - confidence: high - sec_items: 5.02 - EDGAR index: https://www.sec.gov/Archives/edgar/data/799165/000110465923120807/0001104659-23-120807-index.htm - EDGAR primary document: https://www.sec.gov/Archives/edgar/data/799165/000110465923120807/tm2331457d1_8k.htm ## Machine-readable alternates - HTML: https://secwatch.observer/filing/0001104659-23-120807 - JSON: https://secwatch.observer/filing/0001104659-23-120807.json - Plain text: https://secwatch.observer/filing/0001104659-23-120807.txt ## Key facts - Executive change James K. Brata was terminated as Chief Financial Officer, Executive Vice President, Secretary and Treasurer at DAWSON GEOPHYSICAL CO. - Action: terminated - Role: Chief Financial Officer, Executive Vice President, Secretary and Treasurer source text: the employment of (i) James K. Brata, the Company’s Chief Financial Officer, Executive Vice President, Secretary and Treasurer; (ii) Stephen C. Jumper, the Company’s President and Chief Executive Officer; and (iii) C. Ray Tobias, the Company’s Chief Operating Officer and Executive Vice President would terminate (the “Terminations”) on December 20, 2023 evidence_url: https://www.sec.gov/Archives/edgar/data/799165/000110465923120807/0001104659-23-120807-index.htm - Executive change Ian Shaw was appointed as Chief Financial Officer at DAWSON GEOPHYSICAL CO. - Action: appointed - Role: Chief Financial Officer source text: effective as of November 20, 2023 as appointed by the Board of Directors of the Company: (x) Anthony Clark will serve as the Company’s President and Chief Executive Officer, (y) Ray Mays will serve as the Company’s Chief Operating Officer, and (z) Ian Shaw will serve as the Company’s Chief Financial Officer evidence_url: https://www.sec.gov/Archives/edgar/data/799165/000110465923120807/0001104659-23-120807-index.htm - Executive change Anthony Clark was appointed as President and Chief Executive Officer at DAWSON GEOPHYSICAL CO. - Action: appointed - Role: President and Chief Executive Officer source text: effective as of November 20, 2023 as appointed by the Board of Directors of the Company: (x) Anthony Clark will serve as the Company’s President and Chief Executive Officer, (y) Ray Mays will serve as the Company’s Chief Operating Officer, and (z) Ian Shaw will serve as the Company’s Chief Financial Officer evidence_url: https://www.sec.gov/Archives/edgar/data/799165/000110465923120807/0001104659-23-120807-index.htm - Executive change Ray Mays was appointed as Chief Operating Officer at DAWSON GEOPHYSICAL CO. - Action: appointed - Role: Chief Operating Officer source text: effective as of November 20, 2023 as appointed by the Board of Directors of the Company: (x) Anthony Clark will serve as the Company’s President and Chief Executive Officer, (y) Ray Mays will serve as the Company’s Chief Operating Officer, and (z) Ian Shaw will serve as the Company’s Chief Financial Officer evidence_url: https://www.sec.gov/Archives/edgar/data/799165/000110465923120807/0001104659-23-120807-index.htm - Executive change Stephen C. Jumper was terminated as President and Chief Executive Officer at DAWSON GEOPHYSICAL CO. - Action: terminated - Role: President and Chief Executive Officer source text: the employment of (i) James K. Brata, the Company’s Chief Financial Officer, Executive Vice President, Secretary and Treasurer; (ii) Stephen C. Jumper, the Company’s President and Chief Executive Officer; and (iii) C. Ray Tobias, the Company’s Chief Operating Officer and Executive Vice President would terminate (the “Terminations”) on December 20, 2023 evidence_url: https://www.sec.gov/Archives/edgar/data/799165/000110465923120807/0001104659-23-120807-index.htm - Executive change C. Ray Tobias was terminated as Chief Operating Officer and Executive Vice President at DAWSON GEOPHYSICAL CO. - Action: terminated - Role: Chief Operating Officer and Executive Vice President source text: the employment of (i) James K. Brata, the Company’s Chief Financial Officer, Executive Vice President, Secretary and Treasurer; (ii) Stephen C. Jumper, the Company’s President and Chief Executive Officer; and (iii) C. Ray Tobias, the Company’s Chief Operating Officer and Executive Vice President would terminate (the “Terminations”) on December 20, 2023 evidence_url: https://www.sec.gov/Archives/edgar/data/799165/000110465923120807/0001104659-23-120807-index.htm This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.