X0202 4 2005-01-03 0 0000077385 PEOPLES ENERGY CORP PGL 0001275975 FERGUSON DIANA SUE 130 EAST RANDOLPH DRIVE CHICAGO IL 60601 1 0 0 0 Equivalents 2006-01-03 4 A 0 245.752 35.605 A Common Stock 245.752 1511.667 D Acquired under the Company's Directors Deferred Compensation Plan. Equivalents will be converted to an equal number of shares of Common Stock and distributed to the reporting person in accordance with the terms of the Plan. Acquisition of equivalents is exempt from Section 16(b) pursuant to Rule 16b-3. John G. Nassos, as Power of Attorney for Ms. Ferguson 2006-01-05