SUPERIOR ENERGY SERVICES, INC. Form SD: Specialized disclosure report (conflict minerals)
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2020-05-29: Form SD; Description SD; Document d936461dsd.htm.
- 2019-05-31: Form SD; Description SD; Document d756413dsd.htm.
- 2018-05-31: Form SD; Description SD; Document d596581dsd.htm.
- 2017-05-24: Form SD; Description SD; Document d562831dsd.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2020-05-29 | SD | SD | d936461dsd.htm | |
| 2019-05-31 | SD | SD | d756413dsd.htm | |
| 2018-05-31 | SD | SD | d596581dsd.htm | |
| 2017-05-24 | SD | SD | d562831dsd.htm | |
| 2016-05-31 | SD | SD | d189164dsd.htm | |
| 2015-06-01 | SD | SD | d937313dsd.htm | |
| 2014-06-02 | SD | FORM SD | d738294dsd.htm |