Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.

Firms / Yorktown Partners LLC

Yorktown Partners LLC

Institutional venture firmNew York, NYyorktownenergy.comSEC venture capital fund adviser

Yorktown Partners is an energy-focused private equity firm that targets consistent returns. We support visionary companies in multiple energy subsectors.

venture manager, reported GAV $3,031M across 13 vehicles

Importance
56
elevated
Active deployment
55
elevated
Emerging
0
low
Completeness
69
high
Freshness
100
high
Research priority
23
moderate
Identity and regulatory footprint
Headquarters
New York, NYadviserinfo.sec.gov
Office address
410 PARK AVENUE, 20TH FLOOR, New York, NY, 10022adviserinfo.sec.gov
Business phone
212-515-2100adviserinfo.sec.gov
SEC adviser type
exempt reporting adviseradviserinfo.sec.gov
SEC exemption claimed
venture capital fund adviseradviserinfo.sec.govItem 2.B(1): advises solely venture capital funds
Latest Form ADV
Mar 30, 2026
Private funds reported
13 (13 venture capital funds)adviserinfo.sec.gov
Private fund gross assets
$2.7Badviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
business email
info@yorktownenergy.comyorktownenergy.compublished by the subject
business phone
212-515-2100adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
15 observed deals
Stated (the firm’s website)
Sectors
climate, energy, industrial
Stages
not stated or not yet read
Geography
new york
Check size
not stated; DFX does not estimate checks from round sizes
Observed (from deals on record)
Stage at participation: no observed deals yet
Stage at first entry: no observed deals yet
Sectors
unknown 100%
lead rate n/afollow-on rate n/anew logos, 12 months 15
Funds and vehicles
13 reported, 8 no longer reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
Ytm6 LLCFund2024 adv first reportedEarly deployment$212M
Mar 27, 2024
9unknownunknown
Yorktown Eagle Partners LLCFund2024 adv first reportedEarly deployment$9.2M
Mar 27, 2024
17unknownunknown
Yorktown Renewable Energy Infrastructure Fund LPFund2020 form d first saleMature$114M
Mar 27, 2024
2$125MJan 31, 2020
Yorktown Midstream Partners, L.P.Fund2019 form d first saleMature$186M
Mar 27, 2024
32$138MAug 6, 2020
Yorktown Energy Partners Xii, L.P.Fund2018 form d first saleHarvest$266M
Mar 27, 2024
85$240MOct 15, 2019
YT Triple Crown Co Investment Partners, LPFund2018 form d first saleHarvest$73.9M
Mar 27, 2024
6$49.0M
of $49.0M
Apr 6, 2018
Yorktown Energy Partners Xi, L.P.Fund2017 adv first reportedHarvest$996M
Mar 27, 2024
128$0
of $1.7B
Mar 2, 2016
Coral Sea Co Investment Partners, L.P.Fund2016 form d first saleHarvest$115M
Mar 27, 2024
4$102M
of $102M
Jun 28, 2016
YT Brigham Co Investment Partners, LPFund2015 form d first saleHarvest$15.7M
Mar 27, 2024
11$55.0M
of $55.0M
Jun 30, 2015
YT Extraction Co Investment Partners, L.P.Fund2014 form d first saleHarvest$3.7M
Mar 27, 2024
20$62.0M
of $62.0M
Jun 10, 2014
Yorktown Energy Partners X, L.P.Fund2013 form d first saleHarvest$567M
Mar 27, 2024
161$1.6MMay 28, 2013
Yorktown Energy Partners Ix, L.P.Fund2010 form d first saleHarvest$333M
Mar 27, 2024
115$1.2BOct 20, 2010
Yorktown Energy Partners Viii, L.P.FundunknownUnknown$141M
Mar 27, 2024
112unknownunknown
Ytm4 Co Investment Partners, L.P.Fund2014 adv first reportedWound down$0
Mar 27, 2020
15unknownunknown
Yorktown Psi Remainder LPFundunknownWound down$13.8M
Jun 14, 2012
12unknownunknown
Yorktown Energy Partners IV, L.P.FundunknownWound down$6.2M
Mar 30, 2023
56unknownunknown
Yorktown Energy Partners VII, L.P.FundunknownWound down$5.9M
Mar 30, 2023
101unknownunknown
Yorktown Post Oak Remainder LPFundunknownWound down$5.8M
Mar 27, 2020
27unknownunknown
Yorktown Energy Partners V, L.P.FundunknownWound down$617,077
Mar 30, 2023
69unknownunknown
Ytm3 Co Investment Partners, LPFundunknownWound down$0
Mar 27, 2020
17unknownunknown
Yorktown Energy Partners VI, L.P.FundunknownWound down$0
Mar 30, 2023
93unknownunknown
GAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.
Investment team
14 current, 0 departed
Investments on record
15 edges, 15 companies, 0 partner-attributed
CompanyRoundRolePartnerRound sizeThis investorDateSource
Antero Resourcesportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Aris Water Solutionsportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Broad Reach Powerportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Concho Resourcesportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Convergent Energy and Powerportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
EnLink Midstreamportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Indigo Natural Resourcesportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Jupiter Powerportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Lexaeonportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Momentum Midstreamportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Neo Northstarportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Post Oak Companiesportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Uhcportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Vaquero Midstreamportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Vitriniteportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
“This investor” is the amount disclosed for this investor alone; it is unknown unless a source said it. The round size is the whole round.
Co-investors
3 relationships from shared deals, counted for the whole firm
Limited partners
0 disclosed
No LP commitment on record. An LP edge needs a public disclosure with a quote: a pension report (see Limited partners for the plans read), a fund announcement naming the LP, or a Form ADV owner. The fund page carries the LP’s reported performance.
Timeline
31 dated events
  1. Mar 27, 2024
    Yorktown Energy Partners VI, L.P. no longer reported on Form ADV by Yorktown Partners LLC
  2. Mar 27, 2024
    Yorktown Energy Partners IV, L.P. no longer reported on Form ADV by Yorktown Partners LLC
  3. Mar 27, 2024
    Yorktown Energy Partners VII, L.P. no longer reported on Form ADV by Yorktown Partners LLC
  4. Mar 27, 2024
    Ytm6 LLC first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $212,412,254
  5. Mar 27, 2024
    Yorktown Eagle Partners LLC first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $9,156,310
  6. Mar 27, 2024
    Yorktown Energy Partners V, L.P. no longer reported on Form ADV by Yorktown Partners LLC
  7. Mar 31, 2021
    Ytm4 Co Investment Partners, L.P. no longer reported on Form ADV by Yorktown Partners LLC
  8. Mar 31, 2021
    Yorktown Renewable Energy Infrastructure Fund LP first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $124,502,063
  9. Mar 31, 2021
    Ytm3 Co Investment Partners, LP no longer reported on Form ADV by Yorktown Partners LLC
  10. Mar 31, 2021
    Yorktown Post Oak Remainder LP no longer reported on Form ADV by Yorktown Partners LLC
  11. Mar 27, 2020
    Yorktown Midstream Partners, L.P. first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $141,763,158
  12. Mar 30, 2019
    Coral Sea Co Investment Partners, L.P. first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $101,915,085
  13. Mar 30, 2019
    YT Triple Crown Co Investment Partners, LP first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $48,850,318
  14. Mar 30, 2019
    Yorktown Energy Partners Xii, L.P. first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $236,691,938
  15. Mar 31, 2017
    Yorktown Energy Partners Xi, L.P. first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $1,231,852,309
  16. Mar 30, 2016
    YT Brigham Co Investment Partners, LP first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $54,907,467
  17. Mar 31, 2015
    YT Extraction Co Investment Partners, L.P. first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $121,788,511
  18. Mar 31, 2014
    Yorktown Energy Partners X, L.P. first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $1,587,033,927
  19. Mar 31, 2014
    Ytm4 Co Investment Partners, L.P. first reported on Form ADV by Yorktown Partners LLC (Venture Capital Fund), GAV $108,427,678
  20. Apr 1, 2013
    Yorktown Psi Remainder LP no longer reported on Form ADV by Yorktown Partners LLC
  21. Mar 30, 2012
    Yorktown Energy Partners VII, L.P. first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $588,569,509
  22. Mar 30, 2012
    Yorktown Energy Partners Viii, L.P. first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $1,150,000,000
  23. Mar 30, 2012
    Yorktown Energy Partners Ix, L.P. first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $1,272,000,000
  24. Mar 30, 2012
    Ytm3 Co Investment Partners, LP first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $185,000,000
  25. Mar 30, 2012
    Yorktown Post Oak Remainder LP first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $43,303,190
  26. Mar 30, 2012
    Yorktown Psi Remainder LP first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $13,774,278
  27. Mar 30, 2012
    Yorktown Energy Partners VI, L.P. first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $344,328,582
  28. Mar 30, 2012
    Yorktown Partners, LLC first filed Form ADV (ERA, venture capital fund adviser exemption)
  29. Mar 30, 2012
    Yorktown Energy Partners IV, L.P. first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $111,857,580
  30. Mar 30, 2012
    Yorktown Energy Partners V, L.P. first reported on Form ADV by Yorktown Partners, LLC (Venture Capital Fund), GAV $190,947,421
  31. Jul 1, 2009
    Bryan Ross Lawrence joined Schedule A of Yorktown Partners LLC as Member
Classification history
  1. Sep 12, 2026
    Institutional venture firm (confirmed, 95%, cls-1)
    venture manager, reported GAV $3,031M across 13 vehicles
Evidence
57 observations from 4 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
Why admittedvc_exemption,vc_funds_reportedMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC exemption claimedventure_capital_fund_adviserMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC exemption claimedventure_capital_fund_adviserMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
SEC adviser typeexempt_reporting_adviserMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC adviser typeexempt_reporting_adviserMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
First Form ADV filing2012-03-30Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Adv history loadedadv-hist-1Sep 12, 2026FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Latest Form ADV filing2026-03-30Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Latest Form ADV filing2024-03-27Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
SEC statusERA - ActiveMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC status effective2012-03-30Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Venture share of reported funds1Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Business phone212-515-2100Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Business phone212-515-2100Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Contact page urlhttps://www.yorktownenergy.com/contact
contact page linked from the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionYorktown Partners is an energy-focused private equity firm that targets consistent returns. We support visionary companies in multiple energy subsectors.
meta description
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionYorktown Partners is an energy-focused private equity firm that targets consistent returns. We support visionary companies in multiple energy subsectors.
meta description
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
HeadquartersNew York, NYMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
HeadquartersNew York, NYMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Office address410 PARK AVENUE, 20TH FLOOR, New York, NY, 10022Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Office address410 PARK AVENUE, 20TH FLOOR, New York, NY, 10022Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Legal formLimited Liability CompanyMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Legal formLimited Liability CompanyMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Portfolio pagehttps://www.yorktownenergy.com/portfolio
15 entries read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Portfolio pagehttps://www.yorktownenergy.com/portfolio
15 entries read
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Private funds reported13Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Private funds reported13Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Private fund gross assets (reported)$2.7BMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Private fund gross assets (reported)$3.0BMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Schedule a diffsadiff-1Mar 30, 2026FactIAPD Form ADV Part 1 PDF per firm (current filing, Schedule D 7.B.(1) and Schedule A)
Stated geographynew york
geography words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated geographynew york
geography words on the home page
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsclimate,energy,industrial
sector words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsclimate,energy,industrial
sector words on the home page
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://www.yorktownenergy.com/team
2 name/title pairs read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://www.yorktownenergy.com/team
2 name/title pairs read
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Venture funds reported13Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Venture funds reported13Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Websitehttps://www.yorktownenergy.com/Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Site titleHome - Yorktown Partners LLC
title tag
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titleHome - Yorktown Partners LLC
title tag
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)