WGL Holdings, Inc. (NYSE: WGL) today announced that it will hold a live Internet webcast of its second quarter fiscal year 2010 earnings conference call at 10:30 a.m. Eastern time May 6, 2010. Terry D. McCallister, Chairman and Chief Executive Officer; Adrian P. Chapman, President and Chief Operating Officer and Vincent L. Ammann, Jr., Vice President and Chief Financial Officer, will discuss the company's second quarter financial results for fiscal year 2010 and its financial outlook.

WGL Holdings will issue a press release disclosing the company's second quarter results after the market closes May 5, 2010. To access this earnings statement, click on "Press Releases" on the WGL Holdings Web site, wglholdings.com.

The Webcast will be available to the public via a link on the WGL Holdings Web site. To hear the broadcast, click on "Live Webcast" on the home page of the referenced site. Slides providing details of the company's results of operations will also be posted to the Web site prior to the start of the Webcast. The Webcast and related slides will be archived on the WGL Holdings Web site through June 5, 2010.

Headquartered in Washington, D.C., WGL Holdings has three operating segments: (i) the regulated utility segment, which primarily consists of Washington Gas, a natural gas utility that serves over one million customers throughout metropolitan Washington, D.C., and the surrounding region; (ii) the retail energy marketing segment which consists of Washington Gas Energy Services, Inc., a third-party marketer that competitively sells natural gas and electricity and (iii) the design-build energy systems segment, which consists of Washington Gas Energy Systems, Inc., a provider of design-build energy efficiency solutions to government and commercial clients.

Additional information about WGL Holdings is available on its Web site, wglholdings.com . Go to washingtongas.com for more information about Washington Gas Light Company.

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