Dawson Geophysical Co SEC filings DWSN
Dawson Geophysical Co has 1,000 filings in SEC EDGAR's recent list, going back to Nov 29, 2004. Its latest annual report, Form 10-K, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 13, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| NT 10-K | Filing | Apr 1, 2025 | Dec 31, 2024 |
| UPLOAD | Letter from the SEC | Aug 25, 2023 | — |
| PRER14A | Filing | Aug 23, 2023 | — |
| CORRESP | Letter to the SEC | Aug 7, 2023 | — |
| PRER14A | Filing | Aug 7, 2023 | — |
| UPLOAD | Letter from the SEC | Jul 26, 2023 | — |
| SC TO-T/A | Filing | Jan 18, 2022 | — |
| SC 14D9/A | Filing | Jan 18, 2022 | — |
| SC TO-T/A | Filing | Jan 10, 2022 | — |
| SC 14D9/A | Filing | Jan 10, 2022 | — |
| SC 14D9/A | Filing | Nov 23, 2021 | — |
| SC TO-T/A | Filing | Nov 17, 2021 | — |
| SC 14D9/A | Filing | Nov 16, 2021 | — |
| UPLOAD | Letter from the SEC | Nov 4, 2021 | — |
| SC 14D9 | Filing | Nov 1, 2021 | — |
| SC TO-T | Filing | Nov 1, 2021 | — |
| 8-A12B | Form 8-a12b | Apr 8, 2021 | — |
| NT 10-K | Notice of inability to timely file a form 10-k or 10-kt | Mar 15, 2016 | Dec 31, 2015 |
| NT 10-Q | Notice of inability to timely file a form 10-q | May 8, 2015 | Mar 31, 2015 |
| 425 | Current report of material events or corporate changes | Feb 9, 2015 | — |
| 425 | Current report of material events or corporate changes | Jan 13, 2015 | — |
| 425 | Current report of material events or corporate changes | Jan 5, 2015 | — |
| EFFECT | Filing | Dec 31, 2014 | — |
| CORRESP | Letter to the SEC | Dec 31, 2014 | — |
| CORRESP | Letter to the SEC | Dec 31, 2014 | — |
| CORRESP | Letter to the SEC | Dec 16, 2014 | — |
| CORRESP | Letter to the SEC | Dec 16, 2014 | — |
| UPLOAD | Letter from the SEC | Dec 3, 2014 | — |
| 425 | Prospectuses and communications re: business combination transactions | Dec 2, 2014 | — |
| 425 | Current report of material events or corporate changes | Nov 17, 2014 | — |
| CORRESP | Letter to the SEC | Nov 6, 2014 | — |
| 425 | Prospectuses and communications re: business combination transactions | Oct 27, 2014 | — |
| 425 | Current report of material events or corporate changes | Oct 9, 2014 | — |
| UPLOAD | Letter from the SEC | Nov 20, 2013 | — |
| CORRESP | Letter to the SEC | Oct 3, 2013 | — |
| UPLOAD | Letter from the SEC | Sep 20, 2013 | — |
| CORRESP | Letter to the SEC | May 31, 2013 | — |
| CORRESP | Letter to the SEC | May 17, 2013 | — |
| UPLOAD | Letter from the SEC | May 9, 2013 | — |
| CORRESP | Letter to the SEC | Mar 6, 2013 | — |
| UPLOAD | Letter from the SEC | Feb 28, 2013 | — |
| CORRESP | Letter to the SEC | Jan 25, 2013 | — |
| CORRESP | Letter to the SEC | Jan 8, 2013 | — |
| UPLOAD | Letter from the SEC | Dec 27, 2012 | — |
| 425 | Form 8-k | Oct 24, 2011 | — |
| 425 | Current report of material events or corporate changes | Oct 24, 2011 | — |
| 425 | Prospectuses and communications re: business combination transactions | Oct 18, 2011 | — |
| 425 | Prospectuses and communications re: business combination transactions | Oct 7, 2011 | — |
| 425 | Form 8-k | Sep 27, 2011 | — |
| 425 | Current report of material events or corporate changes | Sep 27, 2011 | — |
| 425 | Current report of material events or corporate changes | Sep 6, 2011 | — |
| 425 | Form 8-k | Sep 6, 2011 | — |
| 425 | Current report of material events or corporate changes | Aug 24, 2011 | — |
| 425 | Form 8-k | Aug 24, 2011 | — |
| 425 | Form 8-k | Jul 27, 2011 | — |
| 425 | Form 8-k | Jun 2, 2011 | — |
| 425 | Current report of material events or corporate changes | Jun 2, 2011 | — |
| 425 | Form 8-k | May 5, 2011 | — |
| 425 | Form 8-k | May 4, 2011 | — |
| 425 | Filing | Mar 21, 2011 | — |
| 425 | Form 8-k | Mar 21, 2011 | — |
| 425 | Current report of material events or corporate changes | Mar 21, 2011 | — |
| UPLOAD | Letter from the SEC | Mar 23, 2009 | — |
| CORRESP | Letter to the SEC | Mar 19, 2009 | — |
| UPLOAD | Letter from the SEC | Mar 9, 2009 | — |
| CORRESP | Letter to the SEC | Feb 27, 2009 | — |
| UPLOAD | Letter from the SEC | Feb 25, 2009 | — |
| CORRESP | Letter to the SEC | Feb 6, 2009 | — |
| CORRESP | Letter to the SEC | Jan 26, 2009 | — |
| UPLOAD | Letter from the SEC | Jan 6, 2009 | — |
| CERTNAS | Auto-generated paper document | Nov 5, 2007 | — |
| 25 | Voluntary withdrawal of securities from listing and registration | Nov 5, 2007 | — |
| 8-A12B | Registration/listing of securities on a national securities exchange | Nov 5, 2007 | — |
| UPLOAD | Letter from the SEC | Aug 23, 2007 | — |
| UPLOAD | Letter from the SEC | Aug 10, 2007 | — |
| CORRESP | Letter to the SEC | Jul 12, 2007 | — |
| UPLOAD | Letter from the SEC | Jul 3, 2007 | — |
| 10KSB | Annual and transition reports of small business issuers | Mar 28, 2007 | Dec 31, 2006 |
| 10QSB | Quarterly report pursuant to sections 13 or 15(d) | Nov 13, 2006 | Sep 30, 2006 |
| 10QSB | Quarterly report pursuant to sections 13 or 15(d) | Aug 11, 2006 | Jun 30, 2006 |
| 10QSB | Quarterly and transition reports of small business issuers | May 11, 2006 | Mar 31, 2006 |
| DEFR14A | Definitive revised proxy soliciting materials | Apr 25, 2006 | — |
| 10KSB | Annual and transition reports of small business issuers | Mar 29, 2006 | Dec 31, 2005 |
| 10QSB | Quarterly report pursuant to sections 13 or 15(d) | Nov 14, 2005 | Sep 30, 2005 |
| POS EX | Filing | Oct 6, 2005 | — |
| SB-2/A | Filing | Oct 3, 2005 | — |
| SB-2/A | Filing | Sep 20, 2005 | — |
| SB-2 | Filing | Sep 1, 2005 | — |
| 10QSB | Filing | Aug 15, 2005 | Jun 30, 2005 |
| 10QSB | Filing | May 12, 2005 | Mar 31, 2005 |
| CERTAMX | Auto-generated paper document | Apr 15, 2005 | — |
| 8-A12B | Filing | Apr 13, 2005 | — |
| 10KSB | Filing | Mar 30, 2005 | Dec 31, 2004 |
Showing 93 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Oil & Gas Field Exploration Services (SIC 1382)
- Listed as
- DWSN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- TX
- Headquarters
- Midland, TX
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 799165
- Former names
- TGC INDUSTRIES INC (until Feb 11, 2015)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.