# EnerVest Energy Institutional Co-Investment XII-1A, L.P. — Form D/A

EnerVest Energy Institutional Co-Investment XII-1A, L.P. of HOUSTON, TX, a pooled investment fund, filed a Form D amendment with the SEC on 2011-12-19. $114.9M was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2011-12-19
- Form: D/A
- Accession: 0001507049-11-000001
- Industry: Pooled Investment Fund
- Exemptions: 06, 3C, 3C.9
- Amount sold: $114.9M
- Investors: 4
- Date of first sale: 2010-12-14
- Security types: equity, fund interests
- SEC file number: 021-152407

## Issuer

- Name: EnerVest Energy Institutional Co-Investment XII-1A, L.P.
- CIK: 0001507049
- Entity type: Limited Partnership
- Jurisdiction: DELAWARE
- Incorporated: 2010
- Address: 1001 FANNIN STREET, HOUSTON, TX, 77002
- Phone: (713) 659-3500

## Officers, directors & promoters (5)

| Name | Role | Location |
| --- | --- | --- |
| N/A EnerVest, Ltd. | Director | Houston, TX |
| N/A EnerVest Management GP, L.C. | Director | Houston, TX |
| Mark Houser | Executive Officer | Houston, TX |
| James Vanderhider | Executive Officer | Houston, TX |
| John Walker | Executive Officer | Birmingham, AL |

## Other filings by this issuer (1)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2010-12-22](https://search.stillhousedata.com/formd/0001507049-10-000001) | D | — | $100.0M |

## More

- [CIK 1507049 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1507049&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001507049-11-000001.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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