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Post Oak Energy Capital

Private equity

Houston · Growth · 14 people tracked

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Investment thesis

Post Oak Energy Capital targets middle-market energy investments, a market segment it views as underserved and capable of delivering superior risk-adjusted returns. The firm partners with experienced management teams and energy entrepreneurs with demonstrated track records of value creation, supplying growth capital alongside strategic planning and corporate finance expertise drawn from its investment professionals' operational backgrounds. It builds a tightly knit, complementary portfolio of oil & gas operating companies and aligns incentive compensation with equity value creation. The firm also invests in oil & gas mineral rights in core North American producing basins, managing those positions for accelerated development and cash yield, and emphasizes environmental, social and governance considerations throughout its operations.

Source: firm website, verified Oct 27, 2026.

Stage
Growth
HQ
Houston, US
Instruments
Equity
Private fund assets
$1.8B
VC funds
12

Team · 14 people

from the firm's website
Arnold Moreno
Brian D. Niemczakin
Clint S. Wetmore
Cyrus E. Mansoori
Elizabeth Hurstonin
Frost W. Cochran
Henry S. May III
Kristen Parks
Margy Girardin
Melanie Greeley
Philip A. Davidson
Rainey Janke· Senior Advisorin
Rob Neilson· Senior Advisor
Ryan F. Walsh

Fund performance · per public LP disclosures · 5

as of Sep 2025
FundVintageCommittedNet IRRTVPIDPI
Post Oak Energy Partners GP V, LPLPs: Kern County Employees' Retirement Association2024—42.6%1.08x0.25x
Post Oak Energy Partners V, LPLPs: Florida State Board of Administration2024—27.8%1.22x0.48x
Post Oak Energy Partners IV LPLPs: Florida State Board of Administration2018—9.7%1.42x0.50x
Post Oak Energy Partners III LPLPs: Florida State Board of Administration2016—13.1%1.59x1.14x
Post Oak Energy Partners II LPLPs: Florida State Board of Administration, University of Texas Investment Management Company2014—11.9%1.68x1.15x

Source: public limited-partner disclosures (CalPERS, CalSTRS). Net IRR / TVPI / DPI as reported by the limited partner; a fund's early-year IRR is an interim estimate (J-curve).

Frequently asked questions

What stage does Post Oak Energy Capital invest at?
Post Oak Energy Capital invests at the Growth stage.
What sectors does Post Oak Energy Capital focus on?
Post Oak Energy Capital focuses on Energy.
Where is Post Oak Energy Capital located?
Post Oak Energy Capital is headquartered in Houston, US.

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