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VentureFirmmicro vc · probableexempt_reporting_adviser

Encap Flatrock Midstream

Venture Capital

San Antonio, TX

EnCap Flatrock Midstream creates value by making venture capital investments in the best management teams in midstream.

This is the graph view. The full profile, with its team, deals and sources, is on Venture Capital.Open the full profile →

Search this name across graphsid dfx:vc:e234e266-8212-4ab2-b287-6b8e257dca7d

Data as of Sep 17, 2026 (this record's last observation) from federal regulator filings, firm and issuer disclosures. Page built Sep 19, 2026, 8:09 PM UTC and rebuilt at most every 15 minutes.

Relationships: 56
Dated events: 13
On other graphs: 1
Observed: Sep 12, 2026 to Sep 17, 2026
49 observations

Across DFX

same identity by shared identifier, citation, or a bridge measured by hand

RIA / Wealth Managementidentity

ENCAP FLATROCK MIDSTREAM

Registered adviser · shared crd

Facts

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

Funds: 1
Vintages: 2022 to 2022
Funds with fundraising evidence: 0derived
Investments: 10
Portfolio companies: 10
Investments, 12m: 10
Partner-attributed: 0
People: 31
Investment professionals: 22derived
Co-investors: 0derived
LP relationships: 0
Stated sectors: climateas stated by the firm
Latest Form D: Aug 22, 2023
Latest ADV filing: Mar 30, 2026
Website: efmidstream.com

Funds

Fund	Vintage	Lifecycle	Form D sold	GAV	LPs
Encap Investments L.P.	2022	Active deployment	$931M	n/a	0

Investments

round size is never this investor's check

Company	State	Stage	Round size	Partner	Attribution	Observed
Aspen Midstream	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Brazos Midstream	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Clearfork Midstream	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Edgewater Midstream	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Frontier Energy	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Greenfield Midstream	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Momentum Midstream	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Manchester Energy	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Moda Midstream II	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026
Rangeland Midstream Canada	n/a	n/a	n/a	n/a	Unknown	Sep 16, 2026

Relationships

Member of firm (1)

→ Encap Investments L.P.FirmShared schedule a owner
inferenceForm ADV

Invested in (10)

→ Rangeland Midstream CanadaCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Moda Midstream IICompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Manchester EnergyCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Momentum MidstreamCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Greenfield MidstreamCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Frontier EnergyCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Edgewater MidstreamCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Clearfork MidstreamCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Aspen MidstreamCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site
→ Brazos MidstreamCompanyPortfolio listing
Sep 16, 2026 to presentfactThe subject's own site

Employs (30)

→ Ian S. MorrisPersonVice President
factThe subject's own site
→ Dennis F JaggiPersonManager Of Encap Flatrock Midstream Fund Iii General Partner, Llc
Apr 1, 2014 to presentfactForm ADV, The subject's own site
→ Oklahoma CityPersonManaging Partners
factThe subject's own site
→ Gregory C. KingPersonManaging Partner
factThe subject's own site
→ Samuel G. PittsPersonManaging Partner
factThe subject's own site
→ Matthew R. MeltonPersonManaging Director
factThe subject's own site
→ Thomas J. WaldripPersonManaging Director
factThe subject's own site
→ Jana J. JonasPersonChief of Staff
factThe subject's own site
→ Will R. ArcidiaconoPersonVice President
factThe subject's own site
→ Ryan T. LupoPersonManager, GIS & IT
factThe subject's own site
→ Nix L. ParkPersonAssociate
factThe subject's own site
→ Laura E. GarnerPersonOffice Manager
factThe subject's own site
→ Abigail R. StavinohaPersonVice President
factThe subject's own site
→ Meredith M. StielerPersonVice President of Accounting
factThe subject's own site
→ Weston G. MokryPersonController
factThe subject's own site
→ Aimee M. RogersPersonOffice Manager
factThe subject's own site
→ William D WaldripPersonManager Of Encap Flatrock Midstream Fund V General Partner, Llc
Oct 1, 2022 to presentfactForm ADV, The subject's own site
→ William R. Lemmons Jr.PersonFounder
factThe subject's own site
→ Morriss HurtPersonManaging Partner
Jan 1, 2022 to presentfactForm ADV
→ William Robert LemmonsPersonManager Of Encap Flatrock Midstream Fund V General Partner, Llc
Oct 1, 2022 to presentfactForm ADV
→ Gary R PetersenPersonManager Of Encap Flatrockmidstream Fund Iii General Partner, Llc
Apr 1, 2014 to presentfactForm ADV
→ Jason Matthew DelorenzoPersonManager Of Encap Flatrock Midstream Fund V General Partner, Llc
Oct 1, 2022 to presentfactForm ADV
→ SAM G PittsPersonManager Of Encap Flatrock Midstream Fund V General Partner, Llc
Oct 1, 2022 to presentfactForm ADV
→ Douglas E SwansonPersonManager Of Encap Flatrock Midstream Fund V General Partner, Llc
Oct 1, 2022 to presentfactForm ADV
→ David Joseph KurtzPersonManager Of Encap Flatrock Midstream Fund V General Partner, Llc
Oct 1, 2022 to presentfactForm ADV
→ Gregory Charles KingPersonManager Of Encap Flatrock Midstream Fund V General Partner, Llc
Oct 1, 2022 to presentfactForm ADV
→ David B MillerPersonManager Of Encap Flatrock Midstream Fund Iii General Partner, Llc
Apr 1, 2014 to presentfactForm ADV
→ Robert L ZorichPersonManager Of Encap Flatrock Midstream Fund Iv General Partner, Llc
Nov 1, 2017 to presentfactForm ADV
→ D Martin PhillipsPersonManager Of Encap Flatrock Midstream Fund Iv General Partner, Llc
Nov 1, 2017 to presentfactForm ADV
→ Janet F JaggiPersonMember
Dec 1, 2007 to Mar 30, 2023inferenceForm ADV

Manages (1)

→ Encap Investments L.P.FirmInferred from name stem
inferenceForm D

Owns (11)

← Encap Flatrock MidstreamFirmMember Of Encap Flatrock Midstream Fund V General Partner, Llc
Oct 1, 2022 to presentfactForm ADV
← Encap Investments L.P.FirmMember Of Encap Flatrock Midstream Fund Iii General Partner, Llc
Apr 1, 2014 to presentfactForm ADV
← Encap Flatrock Midstream Fund II General Partner, LLCFirmGp Of Encap Flatrock Midstream Fund Ii Gp, L.P.
Mar 1, 2012 to presentfactForm ADV
← Encap Flatrock Midstream Fund II GP, L.P.FirmMember Of Encap Flatrock Midstream Fund Ii-D Cayman Gp, Llc
Mar 1, 2012 to presentfactForm ADV
← Encap Flatrock Midstream Fund III General Partner, LLCFirmGp Of Encap Flatrock Midstream Fund Iii Gp, L.P.
Apr 1, 2014 to presentfactForm ADV
← Encap Flatrock Midstream Fund III GP, L.P.FirmMember Of Encap Flatrock Midstream Fund Iii-D Gp, Llc
Feb 1, 2014 to presentfactForm ADV
← Encap Flatrock Midstream Fund IV General Partner, LLCFirmGeneral Partner Of Encap Flatrock Midstream Fund Iv Gp, L.P.
Nov 1, 2017 to presentfactForm ADV
← Encap Flatrock Midstream Fund IV GP, L.P.FirmMember Of Encap Flatrock Fund Iv-D Gp, Llc
Nov 1, 2017 to presentfactForm ADV
← EFM Partners, LPFirmMember
Jan 1, 2017 to presentfactForm ADV
← EFM Partners GP, LLCFirmManaging Member
Jan 1, 2017 to presentfactForm ADV
← Encap Flatrock Midstream Fund V General Partner, LLCFirmGeneral Partner Of Encap Flatrock Midstream Fund V Gp, L.P.
Oct 1, 2022 to presentfactForm ADV

Dated events

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

Occurred
Mar 30, 2023
Person left
Janet F Jaggi (Member) no longer on Schedule A of Encap Flatrock Midstream
Form ADVobserved 7 days ago
Occurred
Oct 1, 2022
Person joined
Jason Matthew Delorenzo joined Schedule A of Encap Flatrock Midstream as Manager Of Encap Flatrock Midstream Fund V General Partner, Llc
Form ADVobserved 7 days ago
Occurred
Jan 1, 2022
Person joined
Morriss Hurt joined Schedule A of Encap Flatrock Midstream as Managing Partner
Form ADVobserved 7 days ago
Occurred
Jan 1, 2019
Person joined
SAM G Pitts joined Schedule A of Encap Flatrock Midstream as Managing Partner
Form ADVobserved 7 days ago
Occurred
Nov 1, 2017
Person joined
Robert L Zorich joined Schedule A of Encap Flatrock Midstream as Manager Of Encap Flatrock Midstream Fund Iv General Partner, Llc
Form ADVobserved 7 days ago
Occurred
Nov 1, 2017
Person joined
D Martin Phillips joined Schedule A of Encap Flatrock Midstream as Manager Of Encap Flatrock Midstream Fund Iv General Partner, Llc
Form ADVobserved 7 days ago
Occurred
Nov 1, 2017
Person joined
Douglas E Swanson joined Schedule A of Encap Flatrock Midstream as Manager Of Encap Flatrock Midstream Fund Iv General Partner Llc
Form ADVobserved 7 days ago
Occurred
Jan 1, 2017
Person joined
David Joseph Kurtz joined Schedule A of Encap Flatrock Midstream as Managing Partner
Form ADVobserved 7 days ago
Occurred
Jan 1, 2017
Person joined
Gregory Charles King joined Schedule A of Encap Flatrock Midstream as Managing Partner
Form ADVobserved 7 days ago
Occurred
Apr 1, 2014
Person joined
David B Miller joined Schedule A of Encap Flatrock Midstream as Manager Of Encap Flatrock Midstream Fund Iii General Partner, Llc
Form ADVobserved 7 days ago
Occurred
Apr 1, 2014
Person joined
Gary R Petersen joined Schedule A of Encap Flatrock Midstream as Manager Of Encap Flatrockmidstream Fund Iii General Partner, Llc
Form ADVobserved 7 days ago
Occurred
Mar 22, 2012
Adviser's first ADV filing
Flatrock Energy Advisors, LLC DBA Encap Flatrock Midstream first filed Form ADV (ERA, venture capital fund adviser exemption)
Form ADVobserved 7 days ago

Show 1 bookkeeping events

First seen by DFX
Sep 15, 2026
date not stated
Encap Flatrock Midstream: INSTITUTIONAL_VC -> MICRO_VC (venture manager, reported GAV $0.0M across 1 vehicles)

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) · as of 2026-09-12

Also named here, with no published line of their own (reach them through the firm): Ian S. Morris (Vice President), Dennis F Jaggi (Manager Of Encap Flatrock Midstream Fund Iii General Partner, Llc), Oklahoma City (Managing Partners), Gregory C. King (Managing Partner), Samuel G. Pitts (Managing Partner), Matthew R. Melton (Managing Director), Thomas J. Waldrip (Managing Director), Jana J. Jonas (Chief of Staff), Will R. Arcidiacono (Vice President), Ryan T. Lupo (Manager, GIS & IT), Nix L. Park (Associate), Laura E. Garner (Office 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

Provenance