PE Firm · Capital Allocator

First Reserve Corporation

Medium
Stamford, USA · Founded 1984 · AUM $14.3 billion · Website
Leveraged buyoutGrowth capitalVenture capitalEnergyOil and GasRenewable EnergySolar EnergyCoalInfrastructure ServicesNorth AmericaEurope
Last verified
8/20/2026

Firm Overview

19
Portfolio tracked
6
Sectors
2
Regions
8/20/2026
Last verified

First Reserve Corporation is a private equity firm specializing in investments in the global energy sector, including traditional and renewable energy.

Founded in 1984, First Reserve Corporation is the oldest and largest private equity firm dedicated to the energy sector. The firm specializes in leveraged buyouts and growth capital investments, maintaining a significant presence with offices in Stamford, Houston, and London. Over its history, it has raised several multi-billion dollar funds, including First Reserve Fund XII which closed with approximately $8.9 billion in 2008.

The firm's investment focus spans the entire energy value chain, from traditional oil and gas to renewable energy sources. In 2008, it significantly expanded its renewable portfolio through the acquisition of Gamesa Solar and the formation of a European renewable energy group. The firm has played a pivotal role in the energy industry, including the establishment of major entities like Alpha Natural Resources.

Founded1984
HeadquartersStamford, USA
AUM$14.3 billion
Employees155
StrategiesLeveraged buyout, Growth capital, Venture capital
Sector focusEnergy, Oil and Gas, Renewable Energy, Solar Energy, Coal, Infrastructure Services
Geographic focusNorth America, Europe

Leadership

Alex T. Krueger
Chairman

Notable Investments

Gamesa SolarPBF EnergyCHC HelicopterBrand ServicesDresser-RandPride InternationalEnterra CorporationAlpha Natural Resources

Historical and current deals referenced in public sources.

Portfolio Companies

Portfolio Web Readiness

Not yet assessed

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Sources

This profile is based on publicly available information and may be incomplete or outdated. PE Firm Index is not affiliated with First Reserve Corporation and does not provide investment advice.

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