On July 30, 2018, the Board of Directors of Washington Gas Light Company, an indirect majority-owned subsidiary of WGL Holdings Inc. (the Company), appointed Phillip R. Knoll to serve on the Board, effective immediately. Mr. Knoll is the Interim Co-Chief Executive Officer of AltaGas Ltd. (AltaGas), the indirect parent company of WGL Holdings Inc. Mr. Knoll also serves on the Board of Directors of AltaGas. Mr. Knoll has not been appointed to serve on any committees of the Board. At present, it is anticipated that he will not be paid any compensation for his service on the Board.