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VentureFirminstitutional vcexempt_reporting_adviser

Post Oak Energy Capital, LP

Venture Capital

Houston, TX

Post Oak Energy Capital is a Houston-based private equity firm primarily focused on making investments in upstream oil & gas, mineral rights and the related infrastructure sectors of the energy industry. Post Oak seeks to identify outstanding energy entrepreneurs with well-defined business plans targeting the core producing basins in North America, as well as acquires …

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Search this name across graphsid dfx:vc:2a05ff28-939a-42dd-a03c-ffb238c2e3c0

Data as of Sep 17, 2026 (this record's last observation) from federal regulator filings, firm and issuer disclosures. Page built Sep 18, 2026, 11:02 PM UTC and rebuilt at most every 15 minutes.

Relationships: 28
Dated events: 10
On other graphs: 0
Observed: Sep 12, 2026 to Sep 17, 2026
54 observations

Across DFX

This entity has not been resolved onto another DFX graph by a shared identifier. A name match elsewhere would be a candidate, never an identity, and none is recorded.

Facts

fact = as filed or announced; derived = computed by DFX; estimate = a band, never a point

Funds: 8
Vintages: 2014 to 2023
Reported GAV: $2.3Bgross asset value on Form ADV; never dry powder
Funds with fundraising evidence: 0derived
Investments: 12
Portfolio companies: 12
Investments, 12m: 12
Partner-attributed: 0
People: 6
Investment professionals: 6derived
Co-investors: 0derived
LP relationships: 0
Stated sectors: energyas stated by the firm
Stated geography: north america,texas
Latest Form D: Nov 19, 2024
Latest ADV filing: Mar 26, 2026
Website: postoakenergy.com

Funds

Fund	Vintage	Lifecycle	Form D sold	GAV
Poep IV Layne Water Co-Investment, LLC	2023	Active deployment	n/a	$22.0M
Post Oak Energy Partners V, LP	2023	Active deployment	$415M	$360M
Post Oak Energy Partners IV, LP	2017	Harvest	$600M	$578M
Poep II Rimrock Co-Investment LLC	2016	Harvest	$50.0M	$50.0M
Post Oak Energy Partners III, LP	2016	Harvest	$600M	$500M
Post Oak Energy Partners II, LP	2014	Harvest	$500M	$550M
Post Oak Energy Partners, LP	n/a	Unknown	n/a	$40.0M
Poep Co-Invest LP	n/a	Unknown	n/a	$166M

Investments

round size is never this investor's check

Company	State	Stage	Round size	Partner	Attribution	Observed
Post Oak Minerals	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Tiburon Oil Gas Partners Llc	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Quantent Energy Partners Llc	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
POM V	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Midway Energy Partners	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Broken Oak Investments Llc	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Earthstone Energy Inc	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Post Oak Minerals Llc Copy 2	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Mavros Minerals Ii	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Post Oak Minerals Llc Copy	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Mavros Minerals	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Cpx Piceance Llc	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026

Relationships

Invested in (12)

→ Midway Energy PartnersCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Cpx Piceance LlcCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Mavros MineralsCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Post Oak Minerals Llc CopyCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Post Oak Minerals Llc Copy 2CompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Earthstone Energy IncCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Broken Oak Investments LlcCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Post Oak MineralsCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Tiburon Oil Gas Partners LlcCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Mavros Minerals IiCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Quantent Energy Partners LlcCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ POM VCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site

Manages (8)

→ Post Oak Energy Partners IV, LPFundVenture Capital Fund
Feb 27, 2019 to presentfactForm ADV
→ Post Oak Energy Partners V, LPFundVenture Capital Fund
Mar 27, 2024 to presentfactForm ADV
→ Poep IV Layne Water Co-Investment, LLCFundVenture Capital Fund
Feb 7, 2023 to presentfactForm ADV
→ Post Oak Energy Partners II, LPFundVenture Capital Fund
Feb 27, 2014 to presentfactForm ADV
→ Post Oak Energy Partners III, LPFundVenture Capital Fund
Mar 23, 2017 to presentfactForm ADV
→ Poep Co-Invest LPFundVenture Capital Fund
Mar 29, 2012 to presentfactForm ADV
→ Poep II Rimrock Co-Investment LLCFundVenture Capital Fund
Feb 7, 2023 to presentfactForm ADV
→ Post Oak Energy Partners, LPFundVenture Capital Fund
Mar 29, 2012 to presentfactForm ADV

Employs (4)

→ Philip a. DavidsonPersonLimited Partner
Aug 1, 2006 to presentfactForm ADV
→ Clint S WetmorePersonLimited Partner
Sep 1, 2006 to presentfactForm ADV
→ Frost Walker CochranPersonLimited Partner
Apr 1, 2006 to presentfactForm ADV
→ Ryan Joshua MathewsPersonLimited Partner
Jan 1, 2007 to Feb 7, 2023inferenceForm ADV

Owns (1)

← Post Oak Energy Holdings LLCFirmGeneral Partner
Apr 1, 2006 to presentfactForm ADV

Dated events

8 bookkeeping events (roster, classification and holdings changes) folded below

Occurred
Feb 7, 2023
Person left
Ryan Joshua Mathews (Limited Partner) no longer on Schedule A of Post Oak Energy Capital, LP
Form ADVobserved 6 days ago
Occurred
Mar 29, 2012
Adviser's first ADV filing
Post Oak Energy Capital, LP first filed Form ADV (ERA, venture capital fund adviser exemption)
Form ADVobserved 6 days ago

Show 8 bookkeeping events

Occurred
Mar 27, 2024
Post Oak Energy Partners V, LP first reported on Form ADV by Post Oak Energy Capital, LP (Venture Capital Fund), GAV $360,000,000
Occurred
Feb 7, 2023
Poep IV Layne Water Co-Investment, LLC first reported on Form ADV by Post Oak Energy Capital, LP (Venture Capital Fund), GAV $22,000,000
Occurred
Feb 7, 2023
Poep II Rimrock Co-Investment LLC first reported on Form ADV by Post Oak Energy Capital, LP (Venture Capital Fund), GAV $50,000,000
Occurred
Feb 27, 2019
Post Oak Energy Partners IV, LP first reported on Form ADV by Post Oak Energy Capital, LP (Venture Capital Fund), GAV $600,000,000
Occurred
Mar 23, 2017
Post Oak Energy Partners III, LP first reported on Form ADV by Post Oak Energy Capital, LP (Venture Capital Fund), GAV $600,000,000
Occurred
Feb 27, 2014
Post Oak Energy Partners II, LP first reported on Form ADV by Post Oak Energy Capital, LP (Venture Capital Fund), GAV $500,000,000
Occurred
Mar 29, 2012
Post Oak Energy Partners, LP first reported on Form ADV by Post Oak Energy Capital, LP (Venture Capital Fund), GAV $102,990,000
Occurred
Mar 29, 2012
Poep Co-Invest LP first reported on Form ADV by Post Oak Energy Capital, LP (Venture Capital Fund), GAV $100,010,000

Who to call

the organisation, the role and the published line, with the filing or website that published it; revealed to signed-in accounts

The firm's published line

Revealable: 1 business phone (Form ADV), 1 website (Form ADV), 1 work email (firm website) · as of 2026-09-16

Also named here, with no published line of their own (reach them through the firm): Philip a. Davidson (Limited Partner), Clint S Wetmore (Limited Partner), Frost Walker Cochran (Manager).

Who to call is the organisation, the person's role and the line they published themselves: a business phone, office address, website or profile link from Form ADV, Form 13F or their own website, with that source named on every value. The counts above are what a reveal returns; a personal email is rarely published, so most reveals are the firm's line. Never data bought from a provider, never anything personal. Reveals by plan