Lime Rock is an SEC-registered investment adviser based in Westport, CT that reports managing 5 hedge funds on Form ADV. It reports $5.5 billion in regulatory assets under management. Its private funds, of all types, hold $4.6 billion in gross assets.
- Regulatory assets under management
- $5.5 billionForm ADV Item 5.F
- Gross assets of private funds
- $4.6 billionAll private fund types, Form ADV
- Hedge funds managed
- 523 private funds in total
- Employees
- 198Form ADV Item 5.A
- Registration
- SEC-registered adviserCRD 157127
- Latest Form ADV
- 03/30/2026Disciplinary disclosures: yes, see SEC record
Private equity funds filing Form D (2)
Fund
First sale
Raised
Investors
Minimum
Offering
Lime Rock New Energy II, L.P.
Westport, CT506(c)
First saleJun 2024
Raised$640M
Investors80
MinimumNone set
Offering506(c)
Lime Rock Resources III-CV, L.P.
Westport, CT506(c)
First saleAug 2026
Raised$240M
Investors18
MinimumNone set
Offering506(c)
Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.
Private funds reported on Form ADV (18)
Fund
Gross assets
Minimum
Owners
Adviser
Lime Rock Partners IV Af, L.P.
Cayman IslandsPrivate equity fund
Gross assets$6.4B
Minimum$5.0M
Owners173
AdviserLime Rock
Lime Rock Partners VIII, L.P.
Cayman IslandsPrivate equity fund
Gross assets$694M
Minimum$5.0M
Owners64
AdviserLime Rock
Lime Rock Resources Iv-A, L.P.
Delaware, United StatesHedge fund
Gross assets$557M
Minimum$5.0M
Owners21
AdviserLime Rock
Lime Rock Partners VII, L.P.
Cayman IslandsPrivate equity fund
Gross assets$534M
Minimum$5.0M
Owners49
AdviserLime Rock
Lime Rock Resources V-A, L.P.
Delaware, United StatesHedge fund
Gross assets$492M
MinimumNone set
Owners11
AdviserLime Rock
Lime Rock Resources Iv-C, L.P.
Delaware, United StatesHedge fund
Gross assets$406M
Minimum$5.0M
Owners30
AdviserLime Rock
Lime Rock Resources Iii-A, L.P.
Delaware, United StatesHedge fund
Gross assets$355M
Minimum$5.0M
Owners25
AdviserLime Rock
Lime Rock Resources Iii-C, L.P.
Delaware, United StatesHedge fund
Gross assets$312M
Minimum$5.0M
Owners39
AdviserLime Rock
Lime Rock New Energy, L.P.
Cayman IslandsPrivate equity fund
Gross assets$255M
Minimum$100K
Owners66
AdviserLime Rock
Lime Rock Partners VI Af, L.P.
Cayman IslandsPrivate equity fund
Gross assets$232M
Minimum$100K
Owners7
AdviserLime Rock
Lime Rock Partners V, L.P.
Cayman IslandsPrivate equity fund
Gross assets$199M
Minimum$5.0M
Owners121
AdviserLime Rock
Lime Rock Partners VI Af-C, L.P.
Cayman IslandsPrivate equity fund
Gross assets$145M
Minimum$100K
Owners26
AdviserLime Rock
Lime Rock Partners IX, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$26.0M
Minimum$100K
Owners27
AdviserLime Rock
Lime Rock Resources Ii-C, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$6.9M
Minimum$5.0M
Owners32
AdviserLime Rock
Lime Rock Partners VI, L.P.
Cayman IslandsPrivate equity fund
Gross assets$6.1M
Minimum$5.0M
Owners76
AdviserLime Rock
Lime Rock Partners IV, L.P.
Cayman IslandsPrivate equity fund
Gross assets$3.2M
Minimum$5.0M
Owners87
AdviserLime Rock
Lime Rock Resources Ii-A, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$0
Minimum$5.0M
Owners12
AdviserLime Rock
Lime Rock Resources VI, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$0
Minimum$100K
Owners6
AdviserLime Rock
As reported in the adviser's Form ADV filed Sep 25, 2024. Funds also listed from Form D are shown above.
Fund vehicles: feeder funds and single-deal vehicles (8)
Fund
Gross assets
Minimum
Owners
Adviser
Lr-Crownrock Minerals Coinvestment II, L.P.
Cayman IslandsPrivate equity fund
Gross assets$442M
Minimum$1.0M
Owners23
AdviserLime Rock
Lr-Crownrock Minerals Coinvestment, L.P.
Cayman IslandsPrivate equity fund
Gross assets$433M
Minimum$1.0M
Owners28
AdviserLime Rock
Lr-Pecos Valley Coinvestment, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$177M
Minimum$100K
Owners4
AdviserLime Rock
Lr-Crownrock Minerals 2018 Coinvestment, L.P.
Cayman IslandsPrivate equity fund
Gross assets$105M
Minimum$5.0M
Owners19
AdviserLime Rock
Lr-San Jacinto Minerals II Coinvestment, LP
Cayman IslandsPrivate equity fund
Gross assets$57.0M
Minimum$10.0M
Owners10
AdviserLime Rock
Lr-San Jacinto Minerals III Coinvestment, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$35.3M
Minimum$100K
Owners12
AdviserLime Rock
Lrne-Power Takeoff Coinvestment, L.P.
Cayman IslandsPrivate equity fund
Gross assets$21.4M
Minimum$100K
Owners8
AdviserLime Rock
Lr-Imaginea Coinvestment, L.P.
Cayman IslandsPrivate equity fund
Gross assets$8.0M
Minimum$1.0M
Owners26
AdviserLime Rock
Feeder funds invest through a master fund; single-deal vehicles (SPVs, co-investments, series) hold one investment.
From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures