X0202 4 2006-10-13 0 0000003673 ALLEGHENY ENERGY, INC AYE 0001266111 GOULDING PHILIP L C/O ALLEGHENY ENERGY, INC. 800 CABIN HILL DRIVE GREENSBURG PA 15601 0 1 0 0 Senior VP & CFO Common Stock, $1.25 par value 2006-10-13 4 M 0 30000 40.945 A 80094 D Common Stock, $1.25 par value 2006-10-13 4 F 0 10815 40.945 D 69279 D Common Stock, $1.25 par value 2428.0923 I ESOSP Stock Units 2006-10-13 4 M 0 30000 D Common Stock 30000 60000 D Represents shares of the Issuer's Common Stock issued to Mr. Goulding in connection with the vesting of Stock Units. Calculated based on the average of the high and low sale prices for a share of the Issuer's Common Stock on the New York Stock Exchange on October 13, 2006. Shares of the Issuer's Common Stock withheld as payment for required federal, state and local minimum tax withholdings. Held through the Allegheny Energy, Inc. Employee Stock Ownership and Savings Plan. Mr. Goulding was granted 150,000 Stock Units on February 18, 2004. One-fifth of the Stock Units vested on October 13, 2004, one-fifth vested on October 13, 2005 and one-fifth vested on October 13, 2006. The remaining 60,000 stock units will vest in equal installments on October 13, 2007 and October 13, 2008, provided that Mr. Goulding is an employee of the Issuer on the applicable vesting date. The Issuer pays each holder of Stock Units the full value of each vested Stock Unit in shares of its Common Stock, subject to the holder's election to defer payments, if any. /s/ Amanda J. Skov, Attorney-in-Fact 2006-10-16