-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, N4zs/b7i/lsBQhD5p1FYFVx0GNFioqdX/uHWSTmOGyMSs99lWJ2T5MJZaep+9i9Z PF2QHolL79heJJApCOgjsQ== 0000891836-07-000288.txt : 20070910 0000891836-07-000288.hdr.sgml : 20070910 20070910163916 ACCESSION NUMBER: 0000891836-07-000288 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20070910 DATE AS OF CHANGE: 20070910 GROUP MEMBERS: ELI J. WEINBERG GROUP MEMBERS: JOHN H. SCULLY GROUP MEMBERS: PHOEBE SNOW FOUNDATION, INC. GROUP MEMBERS: SAN FRANCISCO PARTNERS II, L.P. GROUP MEMBERS: SF ADVISORY PARTNERS, L.P. GROUP MEMBERS: SPO ADVISORY CORP. GROUP MEMBERS: SPO ADVISORY PARTNERS, L.P. GROUP MEMBERS: SPO PARTNERS II, L.P. GROUP MEMBERS: THE ELIZABETH R. & WILLIAM J. PATTERSON FOUNDATION GROUP MEMBERS: WILLIAM E. OBERNDORF GROUP MEMBERS: WILLIAM J. PATTERSON FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: SPO ADVISORY CORP CENTRAL INDEX KEY: 0000919468 IRS NUMBER: 680247274 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: 591 REDWOOD HIGHWAY STREET 2: SUITE 3215 CITY: MILL VALLEY STATE: CA ZIP: 94941 BUSINESS PHONE: 4153836600 FORMER COMPANY: FORMER CONFORMED NAME: SF ADVISORY CORP DATE OF NAME CHANGE: 19990329 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ADVENT SOFTWARE INC /DE/ CENTRAL INDEX KEY: 0001002225 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROGRAMMING SERVICES [7371] IRS NUMBER: 942901952 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-46001 FILM NUMBER: 071109111 BUSINESS ADDRESS: STREET 1: 600 TOWNSEND ST CITY: SAN FRANCISCO STATE: CA ZIP: 94103 BUSINESS PHONE: 4155437696 MAIL ADDRESS: STREET 1: 600 TOWNSEND ST CITY: SAN FRANCISCO STATE: CA ZIP: 94103 SC 13D/A 1 sc0122-07.txt AMENDMENT 15 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 15)* Advent Software, Inc. (Name of Issuer) Common Stock, $.01 par value (Title of Class of Securities) 007974108 (CUSIP Number) SPO Partners & Co. 591 Redwood Highway, Suite 3215 Mill Valley, California 94941 (415) 383-6600 with a copy to: Alison S. Ressler Sullivan & Cromwell LLP 1888 Century Park East Los Angeles, CA 90067 (310) 712-6600 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) September 6, 2007 (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition is the subject of this Schedule 13D, and is filing this schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box [_]. Check the following box if a fee is being paid with the statement. [_] *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 2 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: SPO Partners II, L.P. - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: WC - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: Delaware - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 7,073,400(1) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY -0- EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 7,073,400(1) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: -0- - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 7,073,400 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 27.5% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: PN - -------------------------------------------------------------------------------- (1) Power is exercised through its sole general partner, SPO Advisory Partners, L.P. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 3 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: SPO Advisory Partners, L.P. - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: Not Applicable - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: Delaware - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 7,073,400(1)(2) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY -0- EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 7,073,400(1)(2) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: -0- - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 7,073,400 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 27.5% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: PN - -------------------------------------------------------------------------------- (1) Solely in its capacity as the sole general partner of SPO Partners II, L.P. (2) Power is exercised through its sole general partner, SPO Advisory Corp. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 4 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: San Francisco Partners II, L.P. - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: WC - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: California - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 644,700(1) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY -0- EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 644,700(1) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: -0- - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 644,700 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 2.5% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: PN - -------------------------------------------------------------------------------- (1) Power is exercised through its sole general partner, SF Advisory Partners, L.P. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 5 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: SF Advisory Partners, L.P. - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: Not Applicable - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: Delaware - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 644,700(1)(2) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY -0- EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 644,700(1)(2) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: -0- - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 644,700 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 2.5% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: PN - -------------------------------------------------------------------------------- (1) Solely in its capacity as the sole general partner of San Francisco Partners II, L.P. (2) Power is exercised through its sole general partner, SPO Advisory Corp. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 6 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: SPO Advisory Corp. - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: Not Applicable - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: Delaware - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 7,718,100(1)(2) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY -0- EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 7,718,100(1)(2) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: -0- - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 7,718,100 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 30.0% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: CO - -------------------------------------------------------------------------------- (1) Solely in its capacity as the sole general partner of SPO Advisory Partners, L.P. with respect to 7,073,400 of such shares; and solely in its capacity as the sole general partner of SF Advisory Partners, L.P. with respect to 644,700 of such shares. (2) Power is exercised through its three controlling persons, John H. Scully, William E. Oberndorf and William J. Patterson. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 7 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: John H. Scully - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: Not Applicable - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: USA - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 83,800(1) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY 7,718,100(2) EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 83,800(1) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: 7,718,100(2) - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 7,801,900 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 30.3% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: IN - -------------------------------------------------------------------------------- (1) Of these shares, 200 shares are held in the John H. Scully Individual Retirement Accounts, which are self-directed, 54,000 shares underlie stock options granted to Mr. Scully as a member of the Board of Directors of the Issuer and 29,600 shares may be deemed to be beneficially owned by Mr. Scully solely in his capacity as controlling person, sole director and executive officer of Phoebe Snow Foundation, Inc. (2) These shares may be deemed to be beneficially owned by Mr. Scully solely in his capacity as one of three controlling persons of SPO Advisory Corp. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 8 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: William E. Oberndorf - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: Not Applicable - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: USA - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF -0- SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY 7,718,100(1) EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON -0- WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: 7,718,100(1) - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 7,718,100 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 30.0% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: IN - -------------------------------------------------------------------------------- (1) These shares may be deemed to be beneficially owned by Mr. Oberndorf solely in his capacity as one of three controlling persons of SPO Advisory Corp. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 9 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: William J. Patterson - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: Not Applicable - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: USA - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 300(1) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY 7,722,300(2) EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 300(1) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: 7,722,300(2) - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 7,722,600 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 30.0% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: IN - -------------------------------------------------------------------------------- (1) These shares are held in the William J. Patterson Individual Retirement Account, which is self-directed. (2) Of these shares, 7,718,100 shares may be deemed to be beneficially owned by Mr. Patterson solely in his capacity as one of three controlling persons of SPO Advisory Corp. and 4,200 shares may be deemed to be beneficially owned by Mr. Patterson solely in his capacity as a controlling person, director and executive officer of The Elizabeth R. & William J. Patterson Foundation. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 10 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: Phoebe Snow Foundation, Inc. - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: WC - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: California - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 29,600(1) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY 0 EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 29,600(1) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: 0 - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 29,600 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 0.1% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: CO - -------------------------------------------------------------------------------- (1) Power is exercised through its controlling person, sole director and executive officer, John H. Scully. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 11 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: The Elizabeth R. & William J. Patterson Foundation - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: WC - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: California - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 4,200(1) SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY 0 EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 4,200(1) WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: 0 - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 4,200 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): **0.1% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: CO - -------------------------------------------------------------------------------- ** denotes less than. (1) Power is exercised through its controlling persons, sole directors and executive officers, William J. Patterson and Elizabeth R. Patterson. SCHEDULE 13D - --------------------- --------------------- CUSIP No. 007974108 PAGE 12 OF 30 PAGES - --------------------- --------------------- - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON: Eli J. Weinberg - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS: PF - -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR 2(f): [ ] - -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION: USA - -------------------------------------------------------------------------------- 7. SOLE VOTING POWER: NUMBER OF 170 SHARES --------------------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER: OWNED BY 0 EACH --------------------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER: PERSON 170 WITH --------------------------------------------------------------- 10. SHARED DISPOSITIVE POWER: 0 - -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 170 - -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: [ ] - -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): **0.1% - -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON: IN - -------------------------------------------------------------------------------- ** Denotes less than. PAGE 13 OF 30 PAGES This Amendment No. 15 amends the Schedule 13D (the "Original 13D") filed with the Securities Exchange Commission ("SEC") on July 25, 2002, as amended on August 6, 2002, September 9, 2002, September 19, 2002, September 26, 2002, October 15, 2002, March 13, 2003, March 17, 2003, March 25, 2003, May 12, 2003, November 5, 2003, December 4, 2003, August 14, 2007, August 23, 2007 and August 28, 2007. Unless otherwise stated herein, the Original 13D, as previously amended, remains in full force and effect. Terms used herein and not defined herein shall have the meanings ascribed thereto in the Original 13D, as amended. Item 3. Source and Amount of Funds or Other Consideration. Item 3 is hereby amended and restated in its entirety as follows: The source and amount of the funds used or to be used by the Reporting Persons to purchase Shares are as follows: NAME SOURCE OF FUNDS AMOUNT OF FUNDS - --------------------- ---------------------------- --------------- SPO Contributions from Partners $140,900,005 SPO Advisory Partners Not Applicable Not Applicable SFP Contributions from Partners $11,334,854 SF Advisory Partners Not Applicable Not Applicable SPO Advisory Corp. Not Applicable Not Applicable JHS Not Applicable and Personal Funds $8,010 WEO Not Applicable Not Applicable WJP Not Applicable and Personal Funds $12,057 PS Foundation Contributions from Shareholders $1,171,782 Patterson Foundation Contributions from Shareholders $167,282 EJW Personal Funds $2,958 Item 5. Interest in Securities of the Issuer. ------------------------------------ Item 5 is hereby amended and restated in its entirety as follows: (a) Percentage interest calculations for each Reporting Person are based upon the Issuer having 25,709,174 total outstanding Shares as reported on the Issuer's 10-Q filed with the Securities and Exchange Commission on August 9, 2007. SPO --- The aggregate number of Shares that SPO owns beneficially, pursuant to Rule 13d-3 of the Act, is 7,073,400 Shares, which constitutes approximately 27.5% of the outstanding Shares. SPO Advisory Partners --------------------- Because of its position as the sole general partner of SPO, SPO Advisory Partners may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of 7,073,400 Shares, which constitutes approximately 27.5% of the outstanding Shares. SFP --- The aggregate number of Shares that SFP owns beneficially, pursuant to Rule 13d-3 of the Act, is 644,700 Shares, which constitutes approximately 2.5% of the outstanding Shares. PAGE 14 OF 30 PAGES SF Advisory Partners -------------------- Because of its position as the sole general partner of SFP, SF Advisory Partners may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of 644,700 Shares, which constitutes approximately 2.5% of the outstanding Shares. SPO Advisory Corp. ------------------ Because of its positions as the sole general partner of each of SPO Advisory Partners and SF Advisory Partners, SPO Advisory Corp. may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of 7,718,100 Shares in the aggregate, which constitutes approximately 30.0% of the outstanding Shares. JHS --- Individually, and because of his positions as a control person of SPO Advisory Corp. and control person, sole director and executive officer of PS Foundation, JHS may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of 7,801,900 Shares, which constitutes approximately 30.3% of the outstanding Shares. WEO --- Because of his position as a control person of SPO Advisory Corp., WEO may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of 7,718,100 Shares in the aggregate, which constitutes approximately 30.0% of the outstanding Shares. WJP --- Individually, and because of his position as a control person of SPO Advisory Corp. and as a control person, director and executive officer of Patterson Foundation, WJP may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of 7,722,600 Shares in the aggregate, which constitutes approximately 30.0% of the outstanding Shares. PS FOUNDATION ------------- The aggregate number of Shares that PS Foundation owns beneficially, pursuant to Rule 13d-3 of the Act, is 29,600 Shares, which constitutes approximately 0.1% of the outstanding Shares. PATTERSON FOUNDATION -------------------- The aggregate number of Shares that Patterson Foundation owns benefically, pursuant to Rule 13d-3 of the Act, is 4,200 Shares, which constitutes less than 0.1% of the outstanding Shares. PAGE 15 OF 30 PAGES EJW --- The aggregate number of Shares that EJW owns beneficially, pursuant to Rule 13d-3 of the Act, is 170 Shares, which constitutes less than 0.1% of the outstanding Shares. To the best of the knowledge of each of the Reporting Persons, other than as set forth above, none of the persons named in Item 2 hereof is the beneficial owner of any Shares. (b) SPO --- Acting through its sole general partner, SPO has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 7,073,400 Shares. SPO Advisory Partners --------------------- Acting through its sole general partner and in its capacity as the sole general partner of SPO, SPO Advisory Partners has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 7,073,400 Shares held by SPO. SFP --- Acting through its sole general partner, SFP has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 644,700 Shares. SF Advisory Partners -------------------- Acting through its sole general partner and in its capacity as the sole general partner of SFP, SF Advisory Partners has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 644,700 Shares held by SFP. SPO Advisory Corp. ------------------ Acting through its controlling persons and in its capacities as the sole general partner of each of SPO Advisory Partners and SF Advisory Partners, SPO Advisory Corp. has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 7,718,100 Shares held by SPO and SFP in the aggregate. JHS --- As one of three controlling persons of SPO Advisory Corp., which is the sole general partner of each of SPO Advisory Partners and SF Advisory Partners, JHS may be deemed to have shared power with WEO and WJP to vote or to direct the vote and to dispose or to direct the disposition of 7,718,100 Shares held by SPO and SFP in the aggregate. In addition, JHS has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 200 Shares held in the John H. Scully Individual Retirement Accounts, which are self-directed individual retirement accounts, 54,000 Shares underlying stock options and 29,600 Shares held by the PS Foundation, for which JHS is the controlling person, sole director and executive officer. PAGE 16 OF 30 PAGES WEO --- As one of three controlling persons of SPO Advisory Corp., which is the sole general partner of each of SPO Advisory Partners and SF Advisory Partners, WEO may be deemed to have shared power with JHS and WJP to vote or to direct the vote and to dispose or to direct the disposition of 7,718,100 Shares held by SPO and SFP in the aggregate. WJP --- As one of the controlling persons of SPO Advisory Corp., which is the sole general partner of each of SPO Advisory Partners and SF Advisory Partners, WJP may be deemed to have shared power with JHS and WEO to vote or to direct the vote and to dispose or to direct the disposition of 7,718,100 Shares held by SPO and SFP in the aggregate. WJP may be deemed to have shared power to vote or to direct the vote and to dispose or to direct the disposition of 4,200 Shares held by the Patterson Foundation. In addition, WJP has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 300 Shares held in the William J. Patterson Individual Retirement Account, which is a self-directed individual retirement account. PS FOUNDATION ------------- Acting through its controlling person, PS Foundation has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 29,600 Shares. PATTERSON FOUNDATION -------------------- Acting through its two controlling persons, directors and executive officers, Patterson Foundation has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 4,200 Shares. EJW --- EJW has the sole power to vote or to direct the vote and to dispose or to direct the disposition of 170 Shares. (c) Since the most recent filing on Schedule 13D, the Reporting Persons purchased Shares in open market transactions on the Nasdaq Global Select Market as set forth on Schedule I attached hereto. Except as set forth in this paragraph (c), to the best of the knowledge of each of the Reporting Persons, none of the persons named in response to paragraph (a) has effected any transactions in Shares since the most recent filing on Schedule 13D. (d) Each of the Reporting Persons affirms that no person other than such Reporting Person has the right to receive or the power to direct the receipt of distributions with respect to, or the proceeds from the sale of, the Shares owned by such Reporting Person. (e) Not applicable. PAGE 17 OF 30 PAGES Item 7. Material to be Filed as Exhibits. -------------------------------- Item 7 is hereby amended and restated in its entirety as follows: Exhibit A - Agreement pursuant to Rule 13d-1(k) SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. DATED: September 10, 2007 By: /s/ Kim M. Silva ---------------------------------- Kim M. Silva Attorney-in-Fact for: SPO PARTNERS II, L.P.(1) SPO ADVISORY PARTNERS, L.P.(1) SAN FRANCISCO PARTNERS II, L.P.(1) SF ADVISORY PARTNERS, L.P.(1) SPO ADVISORY CORP.(1) JOHN H. SCULLY(1) WILLIAM E. OBERNDORF(1) WILLIAM J. PATTERSON(1) PHOEBE SNOW FOUNDATION, INC.(1) THE ELIZABETH R. & WILLIAM J. PATTERSON FOUNDATION(1) ELI J. WEINBERG(1) (1) A Power of Attorney authorizing Kim M. Silva to act on behalf of this person or entity has been previously filed with the Securities and Exchange Commission.
PAGE 19 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- SPO Partners II, L.P. 8/28/2007 Buy 1,854 39.72 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 488 39.73 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 1,197 39.84 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 222 39.85 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 1,757 39.86 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 1,073 39.87 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 26 39.88 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 2,218 39.91 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 14 39.92 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 1,073 39.93 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 2,635 39.94 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 39 39.95 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 826 39.96 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 124 39.97 Open Market/Broker SPO Partners II, L.P. 8/28/2007 Buy 59,354 39.98 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 46 39.72 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 12 39.73 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 30 39.84 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 5 39.85 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 43 39.86 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 27 39.87 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 1 39.88 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 55 39.91 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 27 39.93 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 65 39.94 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 1 39.95 Open Market/Broker
PAGE 20 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- Phoebe Snow Foundation, Inc. 8/28/2007 Buy 20 39.96 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 3 39.97 Open Market/Broker Phoebe Snow Foundation, Inc. 8/28/2007 Buy 1,465 39.98 Open Market/Broker SPO Partners II, L.P. 8/29/2007 Buy 2,254 39.95 Open Market/Broker SPO Partners II, L.P. 8/29/2007 Buy 292 39.96 Open Market/Broker SPO Partners II, L.P. 8/29/2007 Buy 404 39.97 Open Market/Broker SPO Partners II, L.P. 8/29/2007 Buy 7,750 39.98 Open Market/Broker Phoebe Snow Foundation, Inc. 8/29/2007 Buy 63 39.95 Open Market/Broker Phoebe Snow Foundation, Inc. 8/29/2007 Buy 8 39.96 Open Market/Broker Phoebe Snow Foundation, Inc. 8/29/2007 Buy 11 39.97 Open Market/Broker Phoebe Snow Foundation, Inc. 8/29/2007 Buy 218 39.98 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 489 39.89 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 586 39.90 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 82 39.95 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 195 39.96 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 602 39.98 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 1,075 39.99 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 391 40.00 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 293 40.03 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 1,759 40.04 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 782 40.08 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 684 40.12 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 782 40.13 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 880 40.14 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 5,180 40.15 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 98 40.17 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 1,284 40.18 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 1,119 40.19 Open Market/Broker
PAGE 21 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- SPO Partners II, L.P. 8/30/2007 Buy 98 40.22 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 98 40.23 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 391 40.24 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 98 40.25 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 2,197 40.26 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 249 40.27 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 1,517 40.28 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 47 40.30 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 10,164 40.35 Open Market/Broker SPO Partners II, L.P. 8/30/2007 Buy 3,360 40.40 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 11 39.89 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 14 39.90 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 2 39.95 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 5 39.96 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 14 39.98 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 25 39.99 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 9 40.00 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 7 40.03 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 41 40.04 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 18 40.08 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 16 40.12 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 18 40.13 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 20 40.14 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 120 40.15 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 2 40.17 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 30 40.18 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 26 40.19 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 2 40.22 Open Market/Broker
PAGE 22 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- Phoebe Snow Foundation, Inc. 8/30/2007 Buy 2 40.23 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 9 40.24 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 2 40.25 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 51 40.26 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 6 40.27 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 35 40.28 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 1 40.30 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 236 40.35 Open Market/Broker Phoebe Snow Foundation, Inc. 8/30/2007 Buy 78 40.40 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 782 39.85 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 293 39.90 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 195 39.91 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 879 39.92 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 782 39.93 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 391 39.94 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 586 39.96 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 1,075 39.97 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 977 39.99 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 1,759 40.00 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 1,270 40.01 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 489 40.02 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 293 40.04 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 7,133 40.05 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 293 40.06 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 98 40.07 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 98 40.08 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 1,075 40.09 Open Market/Broker SPO Partners II, L.P. 8/31/2007 Buy 2,932 40.10 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 18 39.85 Open Market/Broker
PAGE 23 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- Phoebe Snow Foundation, Inc. 8/31/2007 Buy 7 39.90 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 5 39.91 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 21 39.92 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 18 39.93 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 9 39.94 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 14 39.96 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 25 39.97 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 23 39.99 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 41 40.00 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 30 40.01 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 11 40.02 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 7 40.04 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 167 40.05 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 7 40.06 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 2 40.07 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 2 40.08 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 25 40.09 Open Market/Broker Phoebe Snow Foundation, Inc. 8/31/2007 Buy 68 40.10 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 873 40.43 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 1,177 40.45 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 2,147 40.46 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 293 40.47 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 10,248 40.49 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 195 40.51 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 2,830 40.52 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 6,628 40.53 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 10,062 40.54 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 1,757 40.55 Open Market/Broker
PAGE 24 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- SPO Partners II, L.P. 9/4/2007 Buy 3,611 40.56 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 3,533 40.57 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 1,249 40.58 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 1,464 40.60 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 98 40.70 Open Market/Broker SPO Partners II, L.P. 9/4/2007 Buy 2,635 40.75 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 21 40.43 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 29 40.45 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 53 40.46 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 7 40.47 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 252 40.49 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 5 40.51 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 70 40.52 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 163 40.53 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 247 40.54 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 43 40.55 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 89 40.56 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 87 40.57 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 31 40.58 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 36 40.60 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 2 40.70 Open Market/Broker Phoebe Snow Foundation, Inc. 9/4/2007 Buy 65 40.75 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 736 40.11 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 24 40.15 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 1,167 40.19 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 11,920 40.25 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 2,051 40.26 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 6,153 40.27 Open Market/Broker
PAGE 25 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- SPO Partners II, L.P. 9/5/2007 Buy 3,907 40.28 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 415 40.29 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 3,623 40.30 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 2,051 40.31 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 2,407 40.32 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 5,372 40.35 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 607 40.38 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 98 40.39 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 1,172 40.44 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 1,074 40.48 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 740 40.51 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 1,213 40.53 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 1,074 40.60 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 1,856 40.64 Open Market/Broker SPO Partners II, L.P. 9/5/2007 Buy 10,940 40.65 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 18 40.11 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 1 40.15 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 28 40.19 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 285 40.25 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 49 40.26 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 147 40.27 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 93 40.28 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 10 40.29 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 87 40.30 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 49 40.31 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 58 40.32 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 128 40.35 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 14 40.38 Open Market/Broker
PAGE 26 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- Phoebe Snow Foundation, Inc. 9/5/2007 Buy 2 40.39 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 28 40.44 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 26 40.48 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 18 40.51 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 29 40.53 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 26 40.60 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 44 40.64 Open Market/Broker Phoebe Snow Foundation, Inc. 9/5/2007 Buy 260 40.65 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 98 40.00 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 98 40.04 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 1,174 40.21 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 229 40.32 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 391 40.33 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 554 40.38 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 587 40.39 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 423 40.40 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 1,897 40.65 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 34 40.66 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 695 40.70 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 1,272 40.71 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 3,404 40.73 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 3,958 40.74 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 7,239 40.75 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 313 40.98 Open Market/Broker SPO Partners II, L.P. 9/6/2007 Buy 134 40.99 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 2 40.00 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 2 40.04 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 26 40.21 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 5 40.32 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 9 40.33 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 12 40.38 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 13 40.39 Open Market/Broker
PAGE 27 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- Phoebe Snow Foundation, Inc. 9/6/2007 Buy 9 40.40 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 42 40.65 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 1 40.66 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 15 40.70 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 28 40.71 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 76 40.73 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 88 40.74 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 161 40.75 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 7 40.98 Open Market/Broker Phoebe Snow Foundation, Inc. 9/6/2007 Buy 4 40.99 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 1,464 40.21 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 98 40.27 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 98 40.32 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 1,855 40.33 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 1,660 40.35 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 1,464 40.37 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 3,984 40.40 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 195 40.41 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 2,734 40.43 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 762 40.45 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 82 40.47 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 214 40.48 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 3,540 40.50 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 703 40.52 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 1,855 40.53 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 7,076 40.55 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 3,858 40.56 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 976 40.59 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 2,174 40.61 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 1,172 40.62 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 30 40.63 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 670 40.66 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 98 40.67 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 3,161 40.68 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 1,757 40.69 Open Market/Broker
PAGE 28 OF 30 PAGES SCHEDULE I TO SCHEDULE 13D FOR SPO PARTNERS II, L.P. DATE OF NUMBER OF PRICE PER WHERE/HOW REPORTING PERSON TRANSACTION TYPE SHARES SHARE ($) TRANSACTION EFFECTED - ---------------- ----------- ---- --------- --------- -------------------- SPO Partners II, L.P. 9/7/2007 Buy 392 40.71 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 879 40.72 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 3,395 40.73 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 6,149 40.74 Open Market/Broker SPO Partners II, L.P. 9/7/2007 Buy 5,205 40.75 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 36 40.21 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 2 40.27 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 2 40.32 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 45 40.33 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 40 40.35 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 36 40.37 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 97 40.40 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 5 40.41 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 66 40.43 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 18 40.45 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 2 40.47 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 5 40.48 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 86 40.50 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 17 40.52 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 45 40.53 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 172 40.55 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 94 40.56 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 24 40.59 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 53 40.61 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 28 40.62 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 1 40.63 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 16 40.66 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 2 40.67 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 77 40.68 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 43 40.69 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 10 40.71 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 21 40.72 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 82 40.73 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 149 40.74 Open Market/Broker Phoebe Snow Foundation, Inc. 9/7/2007 Buy 126 40.75 Open Market/Broker
PAGE 29 OF 30 PAGES EXHIBIT INDEX Exhibit Document Description - ------- -------------------- A Agreement Pursuant to Rule 13d-1(k) EX-99.A 2 ex-a.txt PAGE 30 OF 30 PAGES EXHIBIT A Pursuant to Rule 13d-1(k) of Regulation 13D-G of the General Rules and Regulations of the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, the undersigned agrees that the statement to which this Exhibit is attached is filed on behalf of each of them in the capacities set forth below. DATED: September 10, 2007 By: /s/ Kim M. Silva ---------------------------------- Kim M. Silva Attorney-in-Fact for: SPO PARTNERS II, L.P.(1) SPO ADVISORY PARTNERS, L.P.(1) SAN FRANCISCO PARTNERS II, L.P.(1) SF ADVISORY PARTNERS, L.P.(1) SPO ADVISORY CORP.(1) JOHN H. SCULLY(1) WILLIAM E. OBERNDORF(1) WILLIAM J. PATTERSON(1) PHOEBE SNOW FOUNDATION, INC.(1) THE ELIZABETH R. & WILLIAM J. PATTERSON FOUNDATION(1) ELI J. WEINBERG(1) (1) A Power of Attorney authorizing Kim M. Silva to act on behalf of this person or entity has been previously filed with the Securities and Exchange Commission. -----END PRIVACY-ENHANCED MESSAGE-----