| Filed On | Filing |
|---|---|
| 21 Nov 2016 | 424B3 |
| 13 Dec 2006 | PRICING SUPPLEMENT NO. 3 FILING UNDER RULE 424(B)(3) |
| 24 Oct 2005 | PROSPECTUS |
| 17 Jun 2005 | PRICING SUPPLEMENT NOS. 1 AND 2 |
| 22 Mar 2004 | PROSP. SUPP. OF 03-22-04 TO PROSP. OF 08-22-01 |
| 19 Nov 2003 | PRICING SUPPLEMENT NO. 4 |
| 19 Nov 2003 | PRICING SUPPLEMENT NO. 3 |
| 24 Feb 2003 | AMENDMENT NO. 1 TO PRICING SUPPLEMENT NO. 2 |
| 21 Feb 2003 | PRICING SUPPLEMENT NO. 2 |
| 21 Feb 2003 | PRICING SUPPLEMENT NO. 1 |
| 20 Sep 2002 | PRICING SUPPLEMENT NO. 5 |
| 22 Mar 2002 | PRICING SUPPLEMENT NO. 4 |
| 22 Mar 2002 | PRICING SUPPLEMENT NO. 3 |
| 22 Jun 2001 | PRICING SUPPLEMENT NO. 2 |
| 22 Jun 2001 | PRICING SUPPLEMENT NO. 1 |
| 29 Nov 2000 | PRICING SUPPLEMENT NO. 7 |
| 01 Sep 2000 | PRICING SUPPLEMENT NO. 6 |
| 31 Aug 2000 | PRICING SUPPLEMENT NO. 5 |
| 25 Aug 2000 | PRICING SUPPLEMENT FOR NORTHWEST NATURAL GAS |
| 08 Dec 1999 | PRICING SUPPLEMENT NO. 3 |
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