X0201 4 2003-08-15 0 0000073020 NORTHWEST NATURAL GAS CO NWN 0001192768 HAMACHEK TOD R PENWEST PHARMACEUTICALS CO. 39 OLD RIDGEBURY ROAD, SUITE #11 DANBURY CT 06810-5120 1 0 0 0 Common Stock, $3-1/6 par value 6723.146 D Common Stock, $3-1/6 par value 2003-08-15 4 A 0 148.122 28.355 A 11088.855 I See footnote Shares have been credited to reporting person's account under the issuer's Directors Deferred Compensation Plan. /s/ C.J. Rue, Attorney-in-Fact 2003-08-18