Post Oak Energy Capital

General contacts
Investor type

PE

Founded

2000

AUM

$2 299 M

Location

Houston, Texas, United States

Investment Ticket

$50-100 m

Investment Stage

Series B Late Stage (Series C+)

Region of investment

North America
Investor profile last updated: 16 August, 2026

Profile

Post Oak Energy Capital is a private equity firm based in Houston, Texas, founded in 2006. The firm is led by a team of 15 professionals, including 5 partners, who bring extensive experience in the energy sector. Post Oak Energy Capital is known for its focus on upstream oil and gas investments, as well as mineral rights and related infrastructure sectors. The firm seeks to partner with outstanding energy entrepreneurs and manage mineral interests for long-term yield and development appreciation.

The firm primarily invests in the energy sector, focusing on upstream oil and gas, mineral rights, and infrastructure. Post Oak Energy Capital targets mid-market acquisitions and growth capital investments, primarily in North America. While specific check sizes are not disclosed, the firm is involved in mature and mezzanine stages of investment. The firm manages a diverse portfolio of 28 companies, with a history of successful IPOs and acquisitions.

Notable investments by Post Oak Energy Capital include Sandridge Energy - oil and gas exploration, Permian Resources - oil and gas production, and Earthstone Energy - energy development. The firm has co-invested with partners like Quantum Energy Partners, enhancing its strategic growth and value creation capabilities.

Industry

Financial Services Fintech Food and Beverage Foodtech Oil and Gas Energy Infrastructure CleanTech

Post Oak Energy Capital Funds

Name Type
Questionare
Industry
Questionare
Stage
Questionare
Region 		Size AUM Launch date
Post Oak Energy Partners V LP
Private Equity (PE)
Fintech
Oil and Gas
Infrastructure
Energy
CleanTech
Series B
Late Stage (Series C+)
North America
$5-10 m
$600 M
June 2025

Contacts

Name
Title
Email
Social Networks
avatar
Rainey Janke Vice President
Vice President
j•••@•••
LinkedIn
avatar
Henry May Director
Director
m•••@•••
LinkedIn
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FAQs about Post Oak Energy Capital

Post Oak Energy Capital is a private equity firm. It backs companies at Series B and Late Stage (Series C+), writing tickets of $50-100 m.
Post Oak Energy Capital is located in Houston, Texas, United States.
Post Oak Energy Capital was founded in 2000.
Post Oak Energy Capital invests in companies and startups in Financial Services, Fintech, Food and Beverage, Foodtech, Oil and Gas, Energy, Infrastructure, CleanTech.
Post Oak Energy Capital invests in companies and startups in North America.
Post Oak Energy Capital invests in companies and startups at Series B, Late Stage (Series C+).
Post Oak Energy Capital usually invests $50-100 m on average.
Post Oak Energy Capital has around $2 299m assets under management.
Post Oak Energy Capital last fund was created/launched in 2025-06-17
Post Oak Energy Capital can be reached through its website postoakenergy.com and its LinkedIn page. Its general enquiries address is [email protected]. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for Post Oak Energy Capital — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
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Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 16 August, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.