# Douglas E Swanson

Douglas E Swanson of Houston, TX appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. 30 filing roles across Form D (27), Form ADV (3).

## Filings (30)

| Filed | Source | Entity | Role | Location |
| --- | --- | --- | --- | --- |
| 2025-03-31 | Form ADV | [FLATROCK ENERGY ADVISORS, LLC](https://search.stillhousedata.com/firm/161237) | MANAGER | SAN ANTONIO, TX |
| 2025-03-31 | Form ADV | [ENCAP INVESTMENTS L.P.](https://search.stillhousedata.com/firm/160695) | MANAGING PARTNER | HOUSTON, TX |
| — | Form ADV | [ENCAP ETF MANAGEMENT, LLC](https://search.stillhousedata.com/firm/325769) | MANAGER | HOUSTON, TX |
| 2017-08-09 | Form D | [EnCap Energy Capital Fund VIII Co-Investors B, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1537404&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2018-12-14 | Form D | [EnCap Energy Capital Fund VIII Co-Investors D, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1537385&type=&dateb=&owner=include&count=40) | Executive Officer | Houston, TX |
| 2018-12-14 | Form D | [EnCap Energy Capital Fund VIII Co-Investors, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1537403&type=&dateb=&owner=include&count=40) | Executive Officer | Houston, TX |
| 2017-12-15 | Form D | [EnCap Energy Capital Fund XI-D, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1693948&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2017-01-09 | Form D | [EnCap Energy Capital Fund XI, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1693946&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2017-01-09 | Form D | [EnCap Energy Capital Fund XI-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1693947&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2017-12-15 | Form D | [EnCap Energy Capital Fund XI-C Facilitator, LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1724946&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2018-12-14 | Form D | [EnCap Energy Capital Fund VIII Co-Investors B, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1537404&type=&dateb=&owner=include&count=40) | Executive Officer | Houston, TX |
| 2020-12-18 | Form D | [EnCap Energy Transition Co-Investment Fund I-E, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1797742&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2020-12-18 | Form D | [EnCap Energy Transition Co-Investment Fund I-B, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1797743&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2020-12-18 | Form D | [EnCap Energy Transition Co-Investment Fund I-A, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1797745&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2021-05-06 | Form D | [EnCap Energy Transition Fund I-E, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1797278&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2020-12-18 | Form D | [EnCap Energy Transition Fund I-B, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1797277&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2020-12-18 | Form D | [EnCap Energy Transition Fund I-A, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1797276&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2020-12-18 | Form D | [EnCap Energy Transition Fund I-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1799117&type=&dateb=&owner=include&count=40) | Executive Officer | George Town, Grand Cayman, E9 |
| 2021-01-11 | Form D | [EETF Sidecar I-E, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1838686&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2021-01-11 | Form D | [EETF Sidecar I-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1838685&type=&dateb=&owner=include&count=40) | Executive Officer | GEORGE TOWN, GRAND CAYMAN, E9 |
| 2021-01-11 | Form D | [EETF Sidecar I-B, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1838684&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2021-01-11 | Form D | [EETF Sidecar I-A, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1838683&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2021-01-04 | Form D | [EnCap Energy Transition Co-Investment Fund I-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1799116&type=&dateb=&owner=include&count=40) | Executive Officer | GEORGE TOWN, GRAND CAYMAN, E9 |
| 2023-08-31 | Form D | [EnCap Energy Transition Fund II-E, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1931737&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2023-08-31 | Form D | [EnCap Energy Transition Fund II-B, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1931735&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2023-08-31 | Form D | [EnCap Energy Transition Fund II-A, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1931732&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2023-08-31 | Form D | [EnCap Energy Transition Fund II-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1948007&type=&dateb=&owner=include&count=40) | Executive Officer | GEORGE TOWN, GRAND CAYMAN, E9 |
| 2024-04-18 | Form D | [EnCap Energy Capital Fund XII-C, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1973717&type=&dateb=&owner=include&count=40) | Executive Officer | GEORGE TOWN, GRAND CAYMAN, E9 |
| 2024-04-18 | Form D | [EnCap Energy Capital Fund XII-B, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1970492&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, TX |
| 2024-04-18 | Form D | [EnCap Energy Capital Fund XII, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1970507&type=&dateb=&owner=include&count=40) | Executive Officer | HOUSTON, 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.