Unit Corporation Form 424B5: Prospectus (Rule 424(b)(5))
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2018-03-14: Form 424B5; Description 424B5; Document d542073d424b5.htm.
- 2017-04-04: Form 424B5; Description 424B5; Document d354537d424b5.htm.
- 2011-05-03: Form 424B5; Description PRELIMINARY PROSPECTUS SUPPLEMENT; Document d424b5.htm.
- 2003-12-10: Form 424B5; Description PROSPECTUS SUPPLEMENT; Document d11093e424b5.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2018-03-14 | 424B5 | 424B5 | d542073d424b5.htm | |
| 2017-04-04 | 424B5 | 424B5 | d354537d424b5.htm | |
| 2011-05-03 | 424B5 | PRELIMINARY PROSPECTUS SUPPLEMENT | d424b5.htm | |
| 2003-12-10 | 424B5 | PROSPECTUS SUPPLEMENT | d11093e424b5.htm | |
| 2003-12-08 | 424B5 | PROSPECTUS SUPPLEMENT | d11093b5e424b5.htm | |
| 1999-09-24 | 424B5 | FINAL PROSPECTUS SUPPLEMENT | ||
| 1999-09-02 | 424B5 | PRELIMINARY PROSPECTUS SUPPLEMENT |