Item 1 (a). Forest Oil Corporation Item 1 (b). 707 17th Street, Suite 3600 Denver, CO 80202 Item 2 (a). GW Capital, Inc. Item 2 (b). 10900 NE 8th St., Suite 750 Bellevue, WA 98004 Item 2 (c). Not Applicable Item 2 (d). Common Stock Item 2 (e). 346091705 Item 3 Investment Advisor registered under Section 203 of the Investment Advisors Act of 1940 Item 4 (a). 6,445,762 Item 4 (b). 5.452% Item 4 (c). (i) 4,308,381 (ii) 0 (iii) 6,445,762 (iv) 0 Item 5 Not Applicable Item 6 Not Applicable Item 7 Not Applicable Item 8 Not Applicable Item 9 Not Applicable Item 10 Not Applicable After reasonable inquiry and to the best of my know- Ledge and belief, I certify that the information set Forth in the statement is true, complete and correct. February 12, 2013 Guy Watanabe Guy Watanabe President