Fund family · SEC Form D record

First Reserve IOG Resources funds

First Reserve IOG Resources has 2 vehicles on the SEC Form D record, in 2 numbered generations, filed from 2022 to 2026. The newest is First Reserve IOG Resources III, L.P., first filed Apr 15, 2025. The adviser of record on Form ADV Schedule D is First Reserve.

Vehicles
2
Numbered generations
2
First filing
2022
Latest filing
Jul 7, 2026

Adviser of record (Form ADV Schedule D) First Reserve (CRD 157056)

Names, dates and status as filed on SEC EDGAR. A Form D is a notice of an exempt offering; the SEC does not review or approve it. Grouped by name; see the last question below.

Fund III

1 vehicle · first filed · latest filing

VehicleSleeveFirst filedLatest filingFiling recordSEC
First Reserve IOG Resources III, L.P.CIK 2064782Filed within 13 monthsEDGAR

Sold to date and investors

Unlock in the terminal (Investor)

Fund II

1 vehicle · first filed · latest filing

VehicleSleeveFirst filedLatest filingFiling recordSEC
First Reserve IOG Resources II, L.P.CIK 1922537Annual amendment overdueEDGAR

Sold to date and investors

Unlock in the terminal (Investor)

Questions about the First Reserve IOG Resources funds

How many First Reserve IOG Resources funds are there?
The SEC Form D record shows 2 vehicles in 2 numbered generations, the earliest filed Apr 12, 2022 and the latest filing on Jul 7, 2026. By generation: Fund III (First Reserve IOG Resources III, L.P., first filed Apr 15, 2025); Fund II (First Reserve IOG Resources II, L.P., first filed Apr 12, 2022).
What is the latest First Reserve IOG Resources fund?
First Reserve IOG Resources III, L.P., which first filed a Form D on Apr 15, 2025 and last amended it on Jul 7, 2026. Its own page carries the filed terms, the people named on the form and every filing on EDGAR.
Who is the adviser to the First Reserve IOG Resources funds?
First Reserve (RIA, CRD 157056), joined from Form ADV Schedule D, where an adviser lists each private fund it advises and the fund's Form D file number.
How much have the First Reserve IOG Resources funds raised?
Each vehicle reports an amount sold and an investor count on its latest Form D or amendment, and those figures are on each vehicle's entity page. The totals by generation are in the AltStreet Terminal (Investor), where master and parallel sleeves that report one family-wide figure are counted once.
How does AltStreet group these funds into a family?
By name: the base name minus the fund number, sleeve letters, jurisdiction and legal form, read from each issuer's Form D (lib/edgar/fundFamilies.ts). 'Fund IV' is generation 4; a vehicle whose name carries no number is listed as unnumbered. It is a name-based grouping, not a statement of common control; the filings on each entity page show the related persons as filed.