Company · CIK 351231

# DAWSON OPERATING CO

| CIK | [351231](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000351231) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 1382 — Oil & Gas Field Exploration Services |
| Incorporated in | TX |
| Business address | TX |
| Listed | no ticker on SEC record today |
| First annual or quarterly report | 1995-05-09 |

## Offerings

 4 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-180563 | Shelf Effective | 2012-04-04 | 2015-02-19 | 3 |
| 333-158330 | Shelf Effective | 2009-03-31 | 2009-04-09 | 2 |
| 333-127268 | Shelf Dormant | 2005-08-05 | 2005-08-05 | 1 |
| 333-121236 | Shelf Final prospectus | 2004-12-14 | 2005-03-01 | 2 |

## Filings

 10

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2015-02-19 | [EFFECT](https://www.sec.gov/Archives/edgar/data/351231/999999999515000451/9999999995-15-000451-index.htm) Declared effective | 333-180563 | 9999999995-15-000451 |
| 2012-04-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/351231/999999999512001117/9999999995-12-001117-index.htm) Declared effective | 333-180563 | 9999999995-12-001117 |
| 2012-04-04 | [S-3](https://www.sec.gov/Archives/edgar/data/351231/000119312512150094/0001193125-12-150094-index.htm) Shelf registered | 333-180563 | 0001193125-12-150094 |
| 2011-10-28 | [RW](https://www.sec.gov/Archives/edgar/data/351231/000095012311092877/0000950123-11-092877-index.htm) Withdrawn | 333-174843 | 0000950123-11-092877 |
| 2011-09-23 | [EFFECT](https://www.sec.gov/Archives/edgar/data/351231/999999999511002793/9999999995-11-002793-index.htm) Declared effective | 333-174843 | 9999999995-11-002793 |
| 2009-04-09 | [EFFECT](https://www.sec.gov/Archives/edgar/data/351231/999999999509000910/9999999995-09-000910-index.htm) Declared effective | 333-158330 | 9999999995-09-000910 |
| 2009-03-31 | [S-3](https://www.sec.gov/Archives/edgar/data/351231/000095013409006618/0000950134-09-006618-index.htm) Shelf registered | 333-158330 | 0000950134-09-006618 |
| 2005-08-05 | [S-3](https://www.sec.gov/Archives/edgar/data/351231/000095013405015019/0000950134-05-015019-index.htm) Shelf registered | 333-127268 | 0000950134-05-015019 |
| 2005-03-01 | [424B4](https://www.sec.gov/Archives/edgar/data/351231/000095013405003966/0000950134-05-003966-index.htm) Final prospectus | 333-121236 | 0000950134-05-003966 |
| 2004-12-14 | [S-3](https://www.sec.gov/Archives/edgar/data/351231/000095013404019227/0000950134-04-019227-index.htm) Shelf registered | 333-121236 | 0000950134-04-019227 |

[All filings of this company](https://equitycapital.markets/filings?cik=351231) · [CSV](https://equitycapital.markets/filings.csv?cik=351231)

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Source page: https://equitycapital.markets/company/351231 · Data: U.S. SEC EDGAR · CC BY 4.0