X0202 5 2006-09-30 0 0 0 0001103601 WGL HOLDINGS INC WGL 0001216745 ESTRIN MELVYN J 101 CONSTITUTION AVENUE, NW WASHINGTON DC 20080 1 0 0 0 Common Stock 14313.4637 D This total includes shares acquired through reinvestment of dividends in a dividend reinvestment plan. Melvyn J. Estrin By Douglas V. Pope, pursuant to written authorization filed with the Commission. 2006-10-02