GAS TRANSMISSION NORTHWEST CORP

Q: Mar 31 2005

FY: Dec 31 2004

Q: Sep 30 2004

Q: Jun 30 2004

Q: Mar 31 2004

FY: Dec 31 2003

Q: Sep 30 2003

Q: Jun 30 2003

Q: Mar 31 2003

FY: Dec 31 2002

Q: Sep 30 2002

Q: Jun 30 2002

Q: Mar 31 2002

FY: Dec 31 2001

Q: Sep 30 2001

Q: Jun 30 2001

Q: Mar 31 2001

FY: Dec 31 2000

Q: Sep 30 2000

Q: Jun 30 2000

8.01

4.01,9.01

2.04

4.01,9.01

2.03

5.02

5.01,5.02

5.02

5

5

5

5

5

5

Other events

Other events

5,7

5

5

5

Certification of termination of registration of a class of securities (Section 12(g))

Notification of the removal from listing and registration of matured redeemed or retired securities

Letter from the SEC

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)