PE Firm · Capital Allocator

EIG Global Energy Partners

Medium
Washington, D.C., United States · Founded 1982 · AUM US$23.5 billion · Website
Private CreditPrivate Equity NavigatorMezzanine CapitalInfrastructure FundDirect LendingEnergyInfrastructureOil & GasRenewablesNatural GasNorth AmericaEuropeAsia-PacificSouth America
Last verified
9/10/2026

Firm Overview

0
Portfolio tracked
5
Sectors
4
Regions
9/10/2026
Last verified

EIG Global Energy Partners is an American investment firm that specializes in private equity and credit investments within the energy and energy-related infrastructure sectors.

EIG Global Energy Partners was originally established in 1982 as the Energy & Infrastructure Group within the TCW Group in Los Angeles. The group was formed to invest in energy-related infrastructure projects and companies, primarily in OECD countries, by providing mezzanine debt and private equity. In January 2011, the group spun off from TCW to become an independent firm, subsequently moving its headquarters to Washington, D.C. to focus on owning the upside of their business and reducing regulatory constraints.

The firm has since attracted significant minority investments from the China Investment Corporation in 2012 and the Affiliated Managers Group in 2014. EIG operates globally with additional offices in major financial and energy hubs including Hong Kong, Houston, London, Rio de Janeiro, Seoul, and Sydney. In 2023, it was recognized as one of the largest infrastructure debt investment firms globally based on its fundraising activity.

EIG is known for executing large-scale, complex transactions in the energy space, such as its $12.4 billion acquisition of a minority stake in Saudi Aramco's oil pipelines business. The firm also made headlines for its attempted $10.2 billion acquisition of Origin Energy in partnership with Brookfield, although the deal was eventually terminated due to shareholder opposition. Throughout its history, EIG has focused on negotiated private transactions with small- to mid-cap energy companies as well as major infrastructure projects.

Founded1982
HeadquartersWashington, D.C., United States
AUMUS$23.5 billion
Target investmentSmall- to mid-cap energy companies
Employees134
StrategiesPrivate Credit, Private Equity Navigator, Mezzanine Capital, Infrastructure Fund, Direct Lending
Sector focusEnergy, Infrastructure, Oil & Gas, Renewables, Natural Gas
Geographic focusNorth America, Europe, Asia-Pacific, South America

Leadership

Robert Blair Thomas
Chairman and CEO
Chairman and CEO of EIG Global Energy Partners who led the firm's spinoff from TCW Group in 2011.
Randall Wade
President
President of EIG Global Energy Partners.

Notable Investments

Saudi Aramco oil pipelinesOrigin EnergyChesapeake EnergySandRidge EnergyPermian ResourcesIntervention Energy Holdings

Historical and current deals referenced in public sources.

Portfolio Companies

Portfolio not yet mapped for EIG Global Energy Partners.

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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 EIG Global Energy Partners and does not provide investment advice.

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