X0202 4 2006-07-14 0 0000077385 PEOPLES ENERGY CORP PGL 0001275975 FERGUSON DIANA SUE 130 E. RANDOLPH DR. CHICAGO IL 60601 1 0 0 0 Deferred Shares 2006-07-14 4 A 0 27.971 40.12 A Common Stock 27.971 2087.038 D Equivalents 2006-07-14 4 A 0 36.75 40.12 A Common Stock 36.75 3139.557 D Acquired under the Company's Directors Stock and Option Plan. Deferred shares 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, generally after the reporting person ceases to serve as a director of the Company. Acquisition of deferred shares is exempt from Section 16(b) under Rule 16b-3. 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. Peter H. Kauffman, as Power of Attorney for Ms. Ferguson 2006-07-17