# Lime Rock

> Lime Rock is an SEC-registered investment advisory firm in Westport, CT, registered since 2012, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated March 30, 2026.

- CRD: 157127
- Filed as: LIME ROCK
- Legal name: Lime Rock Management LP
- Also doing business as: LIME ROCK NEW ENERGY, LIME ROCK PARTNERS, LIME ROCK RESOURCES
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Westport, CT
- Filing period: October 2026
- Form ADV filing dated: March 30, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/157127
- AdvisorCensus page: https://advisorcensus.com/firm/lime-rock-westport-ct-157127

## Quick answers

**How is Lime Rock compensated?**
On its Form ADV (Item 5.E, October 2026), Lime Rock reports these compensation arrangements: a percentage of assets under its management; performance-based fees.

**Where is Lime Rock located?**
Lime Rock's principal office is in Westport, CT, according to its Form ADV; the April 2026 filing also lists 2 other offices (Schedule D, Section 1.F).

**Is Lime Rock registered with the SEC or a state?**
Lime Rock is an SEC-registered investment advisory firm, registered since 2012. Status as filed: Approved. CRD 157127.

**How much does Lime Rock manage?**
Lime Rock reports $5,478,458,404 in regulatory assets under management in its Form ADV filing dated March 30, 2026 (100% discretionary).

**How have Lime Rock's assets and staff changed since 2021?**
In the Form ADV data for Lime Rock: Regulatory assets under management: $5,739,854,631 in the October 2021 data and $5,478,458,404 in the October 2026 data, down 5%. Total employees: 203 in October 2021 and 198 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Lime Rock serve?**
By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (23).

**Does Lime Rock report any disciplinary disclosures?**
Reports 3 disclosure items on Form ADV Item 11: yes answers to 11.C(2) (SEC or CFTC finding of a violation), 11.C(4) (SEC or CFTC order), and 11.C(5) (SEC or CFTC civil money penalty or cease-and-desist order). Each question covers the firm and its advisory affiliates, and one event can produce several yes answers. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/157127

**What changed in Lime Rock's recent Form ADV filings?**
In the April 2026 filing data: Employees performing advisory functions went from 49 to 55. Regulatory assets under management went from $6,691,703,999 to $5,478,458,404 (-18%).

## From the Form ADV filing

### Compensation (Item 5.E)
- A percentage of assets under your management
- Performance-based fees

### Regulatory assets under management (Item 5.F)
- Total: $5,478,458,404
- Discretionary: $5,478,458,404
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Pooled investment vehicles (other than investment companies and business development companies) | 23 | $5,478,458,404 |

### Advisory services (Item 5.G)
- Portfolio management for pooled investment vehicles (other than investment companies)

### Firm details
- Registered since: 2012 (14 years)
- Employees: 198 total, 55 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CT
- Disclosures (Item 11): Reports 3 disclosure items on Form ADV Item 11.

### Item 11 questions answered yes
- 11.C(2): Has the SEC or the CFTC ever found that the firm or an advisory affiliate was involved in a violation of SEC or CFTC regulations or statutes?
- 11.C(4): Has the SEC or the CFTC ever entered an order against the firm or an advisory affiliate in connection with investment-related activity?
- 11.C(5): Has the SEC or the CFTC ever imposed a civil money penalty on the firm or an advisory affiliate, or ordered the firm or an advisory affiliate to cease and desist from an activity?

Each question covers the firm and its advisory affiliates: its current employees other than clerical staff, its officers, partners, and directors, and anyone who controls the firm or is controlled by it. One event can produce yes answers to several questions. SEC-registered advisers and exempt reporting advisers may leave out events more than ten years old, and may answer 11.A(2) and 11.B(2) for pending charges only. The detail of each yes answer is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/157127

### Other offices (Schedule D, Section 1.F), as of the April 2026 filing
- Houston, TX
- New York, NY

### Websites listed on Form ADV (Item 1.I)
- limerockresources.com
- lrnewenergy.com
- lrpartners.com
- LinkedIn @LIME-ROCK-NEW-ENERGY
- LinkedIn @LIME-ROCK-PARTNERS

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $5,739,854,631 | 203 | March 31, 2021 |
| October 2022 | $9,118,157,401 | 212 | March 31, 2022 |
| October 2023 | $11,218,052,132 | 218 | April 14, 2023 |
| October 2024 | $12,667,511,156 | 213 | September 25, 2024 |
| October 2025 | $6,691,703,999 | 204 | April 8, 2025 |
| October 2026 | $5,478,458,404 | 198 | March 30, 2026 |

Regulatory assets under management: $5,739,854,631 in the October 2021 data and $5,478,458,404 in the October 2026 data, down 5%.
Total employees: 203 in October 2021 and 198 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- Employees performing advisory functions went from 49 to 55.
- Regulatory assets under management went from $6,691,703,999 to $5,478,458,404 (-18%).

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Lime Rock (CRD 157127): Form ADV filing data as of October 2026.