First Reserve and Fortress Acquire Majority Stake in Island Energy Services from One Rock

June 2, 2025

A newly formed partnership between First Reserve and funds managed by affiliates of Fortress Investment Group has acquired a majority stake in Island Energy Services (IES) from One Rock Capital Partners, with One Rock remaining as a minority investor. IES is a Hawaii-based integrated fuel import, storage, pipeline and distribution operator that also runs a 50-location Texaco-branded retail network; the transaction closed in mid-2025 and terms were not disclosed.

Buyers
First Reserve, Fortress Investment Group (funds managed by affiliates of Fortress)
Targets
Island Energy Services
Sellers
One Rock Capital Partners
Industry
Energy
Location
Hawaii, United States
Transaction Type
Buyout

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