# Washington Gas Light Company Pension Plan

Washington Gas Light Company Pension Plan is a Corporate Pension Plan based in Washington, United States.

## Overview

- **Organization type:** Corporate Pension Plan
- **Headquarters:** Washington, United States
- **Region:** North America
- **Address:** Washington, DC, United States
- **Assets under management:** Undisclosed
- **Website:** washingtongas.com

## Regulatory record

- **Reports private funds:** No

## About

The Washington Gas Light Company Employees' Pension Plan is a qualified, trusteed, non-contributory defined-benefit retirement plan covering active employees and vested former employees of Washington Gas, including executive officers. The plan provides unreduced retirement benefits at age 65, with early retirement options available for eligible employees. The sponsor, Washington Gas Light Company, operates as a regulated natural gas utility serving the Washington, DC metropolitan area, ultimately owned by AltaGas Ltd., a Canadian energy infrastructure company. The plan's investment portfolio is managed by the pension committee and external consultants, targeting a diversified mix of public equities, fixed income, real assets, and alternative investments consistent with liability-driven investing principles for a mature defined-benefit plan. Asset allocation decisions balance return requirements against the plan's funded status and the sponsor's long-term obligations to participants. The plan participates alongside the Washington Gas Light Company Savings Plan and Capital Appreciation Plan within a master trust structure. The plan operates within the regulatory framework of ERISA and is subject to oversight by the plan's trustees and investment committee. In recent years, WGL Holdings was acquired by AltaGas Ltd., shifting the plan's ultimate sponsor from a publicly traded US utility holding company to a Canadian energy infrastructure firm. The plan's funded status and investment performance are reported through annual filings and participant notices as required by federal law. The plan's structural character is defined by its closed, single-sponsor architecture — it serves one employer's workforce with no third-party management or multi-employer pooling. This distinguishes it from public pension systems and union-sponsored plans, giving the investment committee a focused liability stream to hedge against.

## Questions

### Who sponsors the Washington Gas Light Company Pension Plan?

The plan is sponsored by Washington Gas Light Company, the regulated natural gas utility serving the Washington, DC metropolitan area. The plan's parent entity is WGL Holdings, Inc., and the ultimate parent is AltaGas Ltd., a publicly traded Canadian energy infrastructure company that acquired WGL Holdings.

### Is the Washington Gas Light Company Pension Plan a defined-benefit or defined-contribution plan?

The plan is a qualified, trusteed, non-contributory defined-benefit retirement plan. Employees do not contribute to the plan; benefits are determined by a formula based on years of service and compensation history, with unreduced retirement benefits available at age 65.

### What is the plan's relationship to the Washington Gas Savings Plan?

The pension plan and the Washington Gas Light Company Savings Plan and Capital Appreciation Plan operate under a master trust structure. The pension plan provides defined-benefit retirement income, while the savings plan represents a separate defined-contribution vehicle for employee elective deferrals.

### How did AltaGas Ltd.'s acquisition of WGL Holdings affect the pension plan?

AltaGas Ltd. acquired WGL Holdings in 2018, making the Canadian energy infrastructure company the ultimate parent of the plan sponsor. The pension plan's obligations remained with the plan trust, and the sponsor's covenant was backed by AltaGas. No fundamental change to plan benefits or structure resulted from the acquisition.

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Updated: 2026-06-03T20:00:00.000Z

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