PE Firm · Capital Allocator

First Reserve Corporation

Medium
Stamford, USA · Founded 1984 · AUM $14.3 billion · Website
Leveraged buyoutsGrowth capitalVenture capitalEnergyRenewable EnergySolar EnergyCoalOil and Gas InfrastructureNorth AmericaEurope
Last verified
10/15/2026

Firm Overview

19
Portfolio tracked
5
Sectors
2
Regions
10/15/2026
Last verified

First Reserve Corporation is a private equity firm that specializes in leveraged buyouts and growth capital investments exclusively within the energy sector.

First Reserve Corporation was founded in 1984 and holds the distinction of being the oldest and largest private equity firm dedicated to the energy sector. The firm operates out of offices in Stamford, Connecticut; Houston, Texas; and London, employing approximately 155 people as of 2017. Historically, the firm has seen significant growth in its fundraising capabilities, highlighted by the 2008 closing of its twelfth private equity fund, First Reserve Fund XII LP, which secured $8.9 billion in commitments.

The firm's investment scope covers a broad spectrum of the energy industry, ranging from traditional resources like coal and oil to modern renewable energy projects. In 2008, First Reserve expanded its renewable footprint by acquiring Gamesa Solar and committing substantial capital to develop solar capacity in Southern Europe. Over its decades of operation, the firm has been involved in several landmark energy transactions and played a key role in establishing major industry players like Alpha Natural Resources.

Founded1984
HeadquartersStamford, USA
AUM$14.3 billion
Employees155
StrategiesLeveraged buyouts, Growth capital, Venture capital
Sector focusEnergy, Renewable Energy, Solar Energy, Coal, Oil and Gas Infrastructure
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

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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This profile is based on publicly available information and may be incomplete or outdated.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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