# William D Waldrip

William D Waldrip appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. 14 filing roles across Form D (13), Form ADV (1).

## Filings (14)

| Filed | Source | Entity | Role | Location |
| --- | --- | --- | --- | --- |
| 2025-03-31 | Form ADV | [FLATROCK ENERGY ADVISORS, LLC](https://search.stillhousedata.com/firm/161237) | MANAGING PARTNER | SAN ANTONIO, TX |
| 2011-06-28 | Form D | [US INFRASTRUCTURE HOLDINGS, LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1523915&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2012-05-16 | Form D | [EnCap Flatrock Midstream Fund II-D, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1549852&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2012-05-16 | Form D | [EnCap Flatrock Midstream Fund II-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1549851&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2012-05-16 | Form D | [EnCap Flatrock Midstream Fund II, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1549850&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2014-04-17 | Form D | [EnCap Flatrock Midstream Fund III-D, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1605714&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2014-04-17 | Form D | [EnCap Flatrock Midstream Fund III-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1605705&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2014-04-17 | Form D | [EnCap Flatrock Midstream Fund III, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1605747&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2017-12-04 | Form D | [EnCap Flatrock Midstream Fund IV-D, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1723611&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2017-12-04 | Form D | [EnCap Flatrock Midstream Fund IV, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1723598&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2017-12-04 | Form D | [EnCap Flatrock Midstream Fund IV-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1723605&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2023-08-22 | Form D | [EnCap Flatrock Midstream Fund V-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1943608&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2023-08-22 | Form D | [EnCap Flatrock Midstream Fund V-B, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1943566&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |
| 2023-08-22 | Form D | [EnCap Flatrock Midstream Fund V, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1943569&type=&dateb=&owner=include&count=40) | Executive Officer | SAN ANTONIO, TX |


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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.