Edgar Filing: LAMAR ADVERTISING CO/NEW

SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934
(Amendment No. 10)*

LAMAR ADVERTISING COMPANY
(Name of Issuer)

CLASS A COMMON STOCK, PAR VALUE $0.001 PER SHARE
(Title of Class of Securities)

512815101
(CUSIP Number)

SPO Advisory Corp.
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, California 90067-1725
(310) 712-6600

(Name, Address and Telephone Number of Person Authorized to
Receive Notices and Communications)

July 11, 2008
(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 that is the subject of this Schedule 13D, and is filing this
Schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
[_].

Note. Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to whom copies are to be sent.

*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).

Page 1 of 31 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
17,457,084 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
17,457,084 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
17,457,084
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
22.7%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
PN
--------------------------------------------------------------------------------

(1) Power is exercised through its sole general partner, SPO Advisory Partners,
L.P.

CUSIP No. 512815101 Page 2 of 31 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
17,457,084 (1)(2)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
17,457,084 (1)(2)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
17,457,084
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
22.7%
--------------------------------------------------------------------------------
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.

CUSIP No. 512815101 Page 3 of 31 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
735,730 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
735,730 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
735,730
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
1.0%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
PN
--------------------------------------------------------------------------------

(1) Power is exercised through its sole general partner, SF Advisory Partners,
L.P.

CUSIP No. 512815101 Page 4 of 31 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
735,730 (1)(2)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
735,730 (1)(2)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
735,730
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
1.0%
--------------------------------------------------------------------------------
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.

CUSIP No. 512815101 Page 5 of 31 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
18,192,814 (1)(2)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
18,192,814 (1)(2)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
18,192,814
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
23.6%
--------------------------------------------------------------------------------
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 17,457,084 of such shares; and solely
in its capacity as the sole general partner of SF Advisory Partners, L.P.
with respect to 735,730 of such shares.

(2) Power is exercised through its three controlling persons, John H. Scully,
William E. Oberndorf and William J. Patterson.

CUSIP No. 512815101 Page 6 of 31 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
303,300 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED 18,192,814 (2)
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
303,300 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
18,192,814 (2)
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
18,496,114
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
24.0%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
IN
--------------------------------------------------------------------------------

(1) Of these shares, 18,700 shares are held in the John H. Scully Individual
Retirement Accounts, which are self-directed, and 284,600 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.

CUSIP No. 512815101 Page 7 of 31 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
74,700 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED 18,192,814 (2)
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
74,700 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
18,192,814 (2)
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
18,267,514
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
23.7%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
IN
--------------------------------------------------------------------------------

(1) These shares are held in the William E. Oberndorf Individual Retirement
Account, which is self-directed.

(2) 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.

CUSIP No. 512815101 Page 8 of 31 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
1,700 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED 18,243,614 (2)
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
1,700 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
18,243,614 (2)
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
18,245,314
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
23.7%
--------------------------------------------------------------------------------
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, 18,192,814 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 50,800 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.

CUSIP No. 512815101 Page 9 of 31 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(d) OR 2(e) [_]
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
California
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
284,600 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
284,600 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
284,600
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES [_]
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0.4%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
CO
--------------------------------------------------------------------------------

(1) Power is exercised through its controlling person, sole director and
executive officer, John H. Scully.

CUSIP No. 512815101 Page 10 of 31 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(d) OR 2(e) [_]
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
California
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
50,800 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
50,800 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
50,800
--------------------------------------------------------------------------------
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 persons, directors and executive
officers, William J. Patterson and Elizabeth R. Patterson.

CUSIP No. 512815101 Page 11 of 31 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(d) OR 2(f) [_]
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
USA
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
126
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
126
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
126
--------------------------------------------------------------------------------
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.

CUSIP No. 512815101 Page 12 of 31 pages

--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
Ian R. McGuire
--------------------------------------------------------------------------------
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(d) OR 2(e) [_]
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
USA
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
1,156 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
1,156 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,156
--------------------------------------------------------------------------------
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.

(1) Of these shares, 256 shares are held in the Ian R. McGuire Individual
Retirement Account, which is self-directed.

CUSIP No. 512815101 Page 13 of 31 pages

--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
Edward H. McDermott
--------------------------------------------------------------------------------
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(d) OR 2(e) [_]
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
USA
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
500 (1)
------------------------------------------------------
NUMBER OF SHARES 8. SHARED VOTING POWER
BENEFICIALLY OWNED -0-
BY EACH REPORTING ------------------------------------------------------
PERSON WITH 9. SOLE DISPOSITIVE POWER
500 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
500
--------------------------------------------------------------------------------
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.

(1) These shares are held in the Edward H. McDermott Individual
Retirement Account, which is self-directed.

Page 14 of 31 pages

This Amendment No. 10 amends the Schedule 13D (the "Original 13D")
filed with the Securities and Exchange Commission ("SEC") on August 22, 2005 and
as amended on May 10, 2006, July 19, 2006, July 31, 2007, October 2, 2007, March
21, 2008, April 15, 2008, June 26, 2008, July 1, 2008 and July 7, 2008. Unless
otherwise stated herein, the Original 13D, as previously amended, remains in
full force and effect. Terms used therein and not defined herein shall have the
meanings ascribed thereto in the Original 13D.

ITEM 2. IDENTITY AND BACKGROUND.

Item 2(a) is hereby amended and restated in its entirety as follows:

(a) The undersigned hereby file this Schedule 13D Statement on behalf
of SPO Partners II, L.P., a Delaware limited partnership ("SPO"), SPO Advisory
Partners, L.P., a Delaware limited partnership ("SPO Advisory Partners"), San
Francisco Partners II, L.P., a California limited partnership ("SFP"), SF
Advisory Partners, L.P., a Delaware limited partnership ("SF Advisory
Partners"), SPO Advisory Corp., a Delaware corporation ("SPO Advisory Corp."),
John H. Scully ("JHS"), William E. Oberndorf ("WEO"), William J. Patterson
("WJP"), Phoebe Snow Foundation, Inc., a California corporation ("PS
Foundation"), The Elizabeth R. & William J. Patterson Foundation, a California
corporation ("Patterson Foundation"), Eli J. Weinberg ("EJW"), Ian R. McGuire
("IRM") and Edward H. McDermott ("EHM"). SPO, SPO Advisory Partners, SFP, SF
Advisory Partners, SPO Advisory Corp., JHS, WEO, WJP, PS Foundation, Patterson
Foundation, EJW, IRM and EHM are sometimes hereinafter referred to as the
"Reporting Persons." The Reporting Persons are making this single, joint filing
because they may be deemed to constitute a "group" within the meaning of Section
13(d)(3) of the Securities Exchange Act of 1934, as amended (the "Act"),
although neither the fact of this filing nor anything contained herein shall be
deemed to be an admission by the Reporting Persons that a group exists.

The following subsection is hereby added to Item 2(b)-(c) in
appropriate alphabetical order as follows:

EHM

EHM's business address is 591 Redwood Highway, Suite 3215, Mill Valley,
California 94941. His present principal occupation is serving as a principal of
SPO Partners & Co., a Delaware corporation. The principal business of SPO
Partners & Co. is operating as an investment firm. The principal business
address of SPO Partners & Co., which serves as its principal office, is 591
Redwood Highway, Suite 3215, Mill Valley, California 94941.

Page 15 of 31 pages

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 $719,618,769
SPO Advisory Partners Not Applicable Not Applicable
SFP Contributions from Partners $30,762,451
SF Advisory Partners Not Applicable Not Applicable
SPO Advisory Corp. Not Applicable Not Applicable
JHS Not Applicable and Personal Funds $778,865
WEO Not Applicable and Personal Funds $2,536,370
WJP Not Applicable and Personal Funds $66,412
PS Foundation Contributions from Shareholders $15,077,638
Patterson Foundation Contributions from Shareholders $1,980,615
EJW Personal Funds $5,672
IRM Personal Funds $55,943
EHM Personal Funds $16,403

ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.

(a) Percentage interest calculations for each Reporting Person are
based upon the Issuer having 76,991,663 total outstanding shares of Class A
common stock as reported on the Issuer's 10-Q filed with the Securities and
Exchange Commission on May 8, 2008.

SPO

The aggregate number of Shares that SPO owns beneficially, pursuant to
Rule 13d-3 of the Act, is 17,457,084 Shares, which constitutes approximately
22.7% 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 17,457,084 Shares, which constitutes approximately 22.7% of
the outstanding Shares.

SFP

The aggregate number of Shares that SFP owns beneficially, pursuant to
Rule 13d-3 of the Act, is 735,730 Shares, which constitutes approximately 1.0%
of the outstanding Shares.

Page 16 of 31 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 735,730 Shares, which constitutes approximately 1.0% 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 18,192,814 Shares
in the aggregate, which constitutes approximately 23.6% of the outstanding
Shares.

JHS

Individually, and because of his positions as a control person of SPO
Advisory Corp. and controlling 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 18,496,114 Shares, which constitutes approximately 24.0% of
the outstanding Shares.

WEO

Individually and 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 18,267,514 Shares, which constitutes approximately 23.7% 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 18,245,314 Shares, which constitutes approximately
23.7% 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 284,600 Shares, which constitutes
approximately 0.4% of the outstanding Shares.

Page 17 of 31 pages

PATTERSON FOUNDATION

The aggregate number of Shares that Patterson Foundation owns
beneficially, pursuant to Rule 13d-3 of the Act, is 50,800 Shares, which
constitutes approximately 0.1% of the outstanding Shares.

EJW

The aggregate number of Shares that EJW owns beneficially, pursuant to
Rule 13d-3 of the Act, is 126 Shares, which constitutes less than 0.1% of the
outstanding Shares.

IRM

The aggregate number of Shares that IRM owns beneficially, pursuant to
Rule 13d-3 of the Act, is 1,156 Shares, which constitutes less than 0.1% of the
outstanding Shares.

EHM

The aggregate number of Shares that EHM owns beneficially, pursuant to
Rule 13d-3 of the Act, is 500 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 17,457,084
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 17,457,084
Shares.

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 735,730
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 735,730 Shares.

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 18,192,814 Shares in the aggregate.

Page 18 of 31 pages

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 18,192,814 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 18,700 Shares
held in the John H. Scully Individual Retirement Accounts, which are
self-directed individual retirement accounts, and 284,600 Shares held by the PS
Foundation, for which JHS is the controlling person, sole director and executive
officer.

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 18,192,814 Shares held by
SPO and SFP in the aggregate. In addition, WEO has the sole power to vote or to
direct the vote and to dispose or to direct the disposition of 74,700 shares
held in the William E. Oberndorf Individual Retirement Account, which is a self-
directed individual retirement account.

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 18,192,814 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 50,800 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 1,700 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
284,600 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 50,800 Shares.

EJW

EJW has the sole power to vote or to direct the vote and to dispose or
to direct the disposition of 126 Shares.

IRM

IRM has the sole power to vote or to direct the vote and to dispose or
to direct the disposition of 256 Shares held in the Ian R. McGuire Individual
Retirement Account, which is a self-directed individual retirement account. In
addition, IRM has the sole power to vote or to direct the vote and to dispose
or to direct the disposition of 900 Shares.

Page 19 of 31 pages

EHM

EHM has the sole power to vote or to direct the vote and to dispose or
to direct the disposition of 500 Shares held in the Edward H. McDermott
Individual Retirement Account, which is a self-directed individual retirement
account.

(c) Since the most recent filing on Schedule 13D, 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,
Shares owned by such Reporting Person.

(e) Not applicable.

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)

Exhibit B: Powers of Attorney

Page 20 of 31 pages

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 July 15, 2008 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)
IAN R. McGUIRE(1)
EDWARD H. MCDERMOTT(2)

(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.

(2) A Power of Attorney
authorizing Kim M. Silva
to act on behalf of
this person or entity is
filed as Exhibit B.

Page 21 of 31 pages
SCHEDULE I TO SCHEDULE 13D

Reporting Person Date of Type Number of Price Per Where/How
Transaction Shares Share ($) Transaction Effected
--------------------------------------------------------------------------------------------------------------------------------

SPO Partners II, L.P. 07/08/08 Buy 195 33.7300 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 1,367 33.7400 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 1,562 33.7500 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 683 33.7600 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 683 33.7800 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 98 33.7900 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 1,269 33.8000 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 6,931 33.8100 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 4,393 33.8200 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 2,928 33.8300 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 1,659 33.8400 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 11,015 33.8500 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 5,219 33.8600 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 5,473 33.8700 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 9,274 33.8800 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 8,085 33.8900 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 27,610 33.9000 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 13,384 33.9100 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 9,393 33.9200 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 13,081 33.9300 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 32,745 33.9400 Open Market/Broker
SPO Partners II, L.P. 07/08/08 Buy 145,953 33.9500 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 5 33.7300 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 33 33.7400 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 38 33.7500 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 17 33.7600 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 17 33.7800 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 2 33.7900 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 31 33.8000 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 169 33.8100 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 107 33.8200 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 72 33.8300 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 41 33.8400 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 269 33.8500 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 127 33.8600 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 134 33.8700 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 226 33.8800 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 197 33.8900 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 674 33.9000 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 327 33.9100 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 229 33.9200 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 319 33.9300 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 800 33.9400 Open Market/Broker
William E. Oberndorf IRA 07/08/08 Buy 3,566 33.9500 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 21 33.7500 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 1,367 33.7600 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 4,464 33.7700 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 6,837 33.7800 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 6,976 33.7900 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 5,043 33.8000 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 781 33.8100 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 1,953 33.8200 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 4,897 33.8300 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 2,051 33.8400 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 195 33.8500 Open Market/Broker

Page 22 of 31 pages
SCHEDULE I TO SCHEDULE 13D

SPO Partners II, L.P. 07/09/08 Buy 879 33.8600 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 2,233 33.8700 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 3,028 33.8800 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 586 33.8900 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 7,911 33.9000 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 3,467 33.9100 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 2,442 33.9200 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 6,766 33.9300 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 7,325 33.9400 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 12,892 33.9500 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 900 33.9600 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 977 33.9700 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 1,367 33.9800 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 5,195 33.9900 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 45,927 34.0000 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 10,648 34.0100 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 7,972 34.0200 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 2,813 34.0300 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 2,292 34.0400 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 2,442 34.0500 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 1,172 34.0600 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 4,600 34.0700 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 4,124 34.0800 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 3,783 34.0900 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 5,948 34.1000 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 7,823 34.1100 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 6,269 34.1200 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 3,985 34.1300 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 3,995 34.1400 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 7,032 34.1500 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 977 34.1600 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 1,953 34.1700 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 2,158 34.1800 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 3,874 34.1900 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 293 34.2000 Open Market/Broker
SPO Partners II, L.P. 07/09/08 Buy 1,067 34.2100 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 1 33.7500 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 33 33.7600 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 107 33.7700 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 163 33.7800 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 167 33.7900 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 121 33.8000 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 19 33.8100 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 47 33.8200 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 117 33.8300 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 49 33.8400 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 5 33.8500 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 21 33.8600 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 53 33.8700 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 72 33.8800 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 14 33.8900 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 189 33.9000 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 83 33.9100 Open Market/Broker

Page 23 of 31 pages
SCHEDULE I TO SCHEDULE 13D

William E. Oberndorf IRA 07/09/08 Buy 58 33.9200 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 162 33.9300 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 175 33.9400 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 308 33.9500 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 22 33.9600 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 23 33.9700 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 33 33.9800 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 124 33.9900 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 1,098 34.0000 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 255 34.0100 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 191 34.0200 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 67 34.0300 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 55 34.0400 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 58 34.0500 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 28 34.0600 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 110 34.0700 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 99 34.0800 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 90 34.0900 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 142 34.1000 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 187 34.1100 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 150 34.1200 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 95 34.1300 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 95 34.1400 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 168 34.1500 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 23 34.1600 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 47 34.1700 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 52 34.1800 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 93 34.1900 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 7 34.2000 Open Market/Broker
William E. Oberndorf IRA 07/09/08 Buy 24 34.2100 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 195 33.2800 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 195 33.2900 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 98 33.3000 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 195 33.3300 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 98 33.3500 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 293 33.3600 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 684 33.3800 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 586 33.3900 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 195 33.4000 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 293 33.4100 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 781 33.4200 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 2,539 33.4300 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 985 33.4400 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,456 33.4500 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,758 33.4600 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,855 33.4700 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 625 33.4800 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 684 33.4900 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 6,308 33.5000 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 195 33.5100 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,074 33.5400 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 782 33.5500 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,758 33.5600 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 782 33.5700 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 195 33.5800 Open Market/Broker

Page 24 of 31 pages
SCHEDULE I TO SCHEDULE 13D

SPO Partners II, L.P. 07/10/08 Buy 5,424 33.5900 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 3,222 33.6000 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 3,531 33.6100 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 3,641 33.6200 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,101 33.6300 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 2,832 33.6400 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,101 33.6500 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 3,222 33.6600 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 3,515 33.6700 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,199 33.6800 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 3,027 33.6900 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,394 33.7000 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,883 33.7100 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 5,547 33.7200 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 6,534 33.7300 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 5,007 33.7400 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 16,015 33.7500 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 2,148 33.7600 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 2,930 33.7700 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 7,519 33.7800 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,180 33.7900 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 19,470 33.8000 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 9,277 33.8100 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,883 33.8200 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 5,859 33.8300 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,861 33.8400 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 4,492 33.8500 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 2,051 33.8600 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 2,834 33.8700 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 684 33.8800 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 2,051 33.8900 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,562 33.9000 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,758 33.9100 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 391 33.9200 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,374 33.9300 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,653 33.9400 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 3,222 33.9500 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 98 33.9700 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 684 33.9800 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 781 33.9900 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 1,953 34.0000 Open Market/Broker
SPO Partners II, L.P. 07/10/08 Buy 781 34.0100 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 5 33.2800 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 5 33.2900 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 2 33.3000 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 5 33.3300 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 2 33.3500 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 7 33.3600 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 16 33.3800 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 14 33.3900 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 5 33.4000 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 7 33.4100 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 18 33.4200 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 60 33.4300 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 23 33.4400 Open Market/Broker

Page 25 of 31 pages
SCHEDULE I TO SCHEDULE 13D

William E. Oberndorf IRA 07/10/08 Buy 34 33.4500 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 41 33.4600 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 44 33.4700 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 15 33.4800 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 16 33.4900 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 149 33.5000 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 5 33.5100 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 25 33.5400 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 18 33.5500 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 41 33.5600 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 18 33.5700 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 5 33.5800 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 128 33.5900 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 76 33.6000 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 83 33.6100 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 86 33.6200 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 97 33.6300 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 67 33.6400 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 97 33.6500 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 76 33.6600 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 83 33.6700 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 99 33.6800 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 71 33.6900 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 104 33.7000 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 114 33.7100 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 131 33.7200 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 154 33.7300 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 118 33.7400 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 377 33.7500 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 51 33.7600 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 69 33.7700 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 177 33.7800 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 98 33.7900 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 459 33.8000 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 219 33.8100 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 115 33.8200 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 138 33.8300 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 114 33.8400 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 106 33.8500 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 48 33.8600 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 67 33.8700 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 16 33.8800 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 48 33.8900 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 37 33.9000 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 41 33.9100 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 9 33.9200 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 32 33.9300 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 39 33.9400 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 76 33.9500 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 2 33.9700 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 16 33.9800 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 18 33.9900 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 46 34.0000 Open Market/Broker
William E. Oberndorf IRA 07/10/08 Buy 18 34.0100 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.4200 Open Market/Broker

Page 26 of 31 pages
SCHEDULE I TO SCHEDULE 13D

Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.4300 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.4400 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.4500 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.4600 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.4700 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.5000 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.5400 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.5600 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.5900 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6000 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6100 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6200 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6300 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.6400 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6500 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6600 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6700 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6800 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.6900 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.7000 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.7100 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.7200 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.7300 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.7400 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 8 33.7500 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.7600 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.7700 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 4 33.7800 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.7900 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 10 33.8000 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 4 33.8100 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.8200 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.8300 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 3 33.8400 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.8500 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.8600 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.8700 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.8900 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.9000 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.9100 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.9300 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.9400 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 2 33.9500 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 33.9900 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 34.0000 Open Market/Broker
Edward H. McDermott SEP IRA 07/10/08 Buy 1 34.0100 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 98 32.6600 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 98 32.6700 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 293 32.7000 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 98 32.7200 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 1013 32.7400 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 293 32.7500 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 293 32.7600 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 977 32.7700 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 550 32.7800 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 98 32.7900 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 586 32.8000 Open Market/Broker

Page 27 of 31 pages
SCHEDULE I TO SCHEDULE 13D

SPO Partners II, L.P. 07/11/08 Buy 659 32.8100 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 4453 32.8200 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 2540 32.8300 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 4041 32.8400 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 2550 32.8500 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 4345 32.8600 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 5619 32.8700 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 7756 32.8800 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 7341 32.8900 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 12479 32.9000 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 341895 32.9000 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 1954 32.9100 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 3458 32.9200 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 1270 32.9300 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 3438 32.9400 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 9662 32.9500 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 2058 32.9600 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 5373 32.9700 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 2272 32.9800 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 3028 32.9900 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 21764 33.0000 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 4608 33.0100 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 2163 33.0200 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 884 33.0300 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 4005 33.0400 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 7908 33.0500 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 781 33.1000 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 879 33.1200 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 593 33.1400 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 286 33.1500 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 98 33.1600 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 488 33.1700 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 684 33.1800 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 781 33.1900 Open Market/Broker
SPO Partners II, L.P. 07/11/08 Buy 190 33.2000 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 2 32.6600 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 2 32.6700 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 7 32.7000 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 2 32.7200 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 24 32.7400 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 7 32.7500 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 7 32.7600 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 23 32.7700 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 13 32.7800 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 2 32.7900 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 14 32.8000 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 15 32.8100 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 104 32.8200 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 59 32.8300 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 94 32.8400 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 59 32.8500 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 101 32.8600 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 131 32.8700 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 181 32.8800 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 171 32.8900 Open Market/Broker

Page 28 of 31 pages
SCHEDULE I TO SCHEDULE 13D

William E. Oberndorf IRA 07/11/08 Buy 291 32.9000 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 7961 32.9000 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 45 32.9100 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 81 32.9200 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 30 32.9300 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 80 32.9400 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 225 32.9500 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 48 32.9600 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 125 32.9700 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 53 32.9800 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 71 32.9900 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 507 33.0000 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 107 33.0100 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 50 33.0200 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 21 33.0300 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 93 33.0400 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 184 33.0500 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 18 33.1000 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 20 33.1200 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 14 33.1400 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 7 33.1500 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 2 33.1600 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 11 33.1700 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 16 33.1800 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 18 33.1900 Open Market/Broker
William E. Oberndorf IRA 07/11/08 Buy 4 33.2000 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 32.8100 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 2 32.8200 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 32.8300 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 2 32.8400 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 32.8500 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 2 32.8600 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 2 32.8700 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 3 32.8800 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 3 32.8900 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 5 32.9000 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 144 32.9000 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 32.9100 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 32.9200 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 2 32.9400 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 4 32.9500 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 32.9600 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 2 32.9700 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 32.9800 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 32.9900 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 9 33.0000 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 2 33.0100 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 33.0200 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 2 33.0400 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 3 33.0500 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 33.1000 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 33.1200 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 33.1700 Open Market/Broker
Edward H. McDermott SEP IRA 07/11/08 Buy 1 33.1900 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 98 31.9000 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1074 31.9100 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 364 31.9500 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1368 31.9600 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1859 31.9700 Open Market/Broker

Page 29 of 31 pages
SCHEDULE I TO SCHEDULE 13D

SPO Partners II, L.P. 07/14/08 Buy 1954 31.9800 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 3225 31.9900 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1270 32.0000 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 393 32.0100 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1661 32.0200 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1563 32.0300 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1466 32.0400 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 18588 32.0500 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1075 32.1300 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 684 32.1400 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 63663 32.1500 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 5374 32.1600 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 293 32.1700 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1368 32.1800 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 98 32.1900 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 98 32.2000 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 293 32.2100 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1173 32.2200 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 21764 32.2300 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 9690 32.2400 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 115948 32.2500 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 98 32.2700 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 24429 32.2800 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 48955 32.3000 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 7915 32.3100 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1871 32.3200 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 879 32.3300 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 195 32.3400 Open Market/Broker
SPO Partners II, L.P. 07/14/08 Buy 1254 32.3500 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 2 31.9000 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 25 31.9100 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 8 31.9500 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 31 31.9600 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 42 31.9700 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 45 31.9800 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 73 31.9900 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 29 32.0000 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 9 32.0100 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 38 32.0200 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 36 32.0300 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 33 32.0400 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 424 32.0500 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 24 32.1300 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 16 32.1400 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 1452 32.1500 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 123 32.1600 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 7 32.1700 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 31 32.1800 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 2 32.1900 Open Market/Broker

Page 30 of 31 pages
SCHEDULE I TO SCHEDULE 13D

William E. Oberndorf IRA 07/14/08 Buy 2 32.2000 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 7 32.2100 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 27 32.2200 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 496 32.2300 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 221 32.2400 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 2644 32.2500 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 2 32.2700 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 557 32.2800 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 1117 32.3000 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 181 32.3100 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 43 32.3200 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 20 32.3300 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 4 32.3400 Open Market/Broker
William E. Oberndorf IRA 07/14/08 Buy 29 32.3500 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 31.9100 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 31.9500 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 31.9600 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 31.9700 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 31.9800 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 2 31.9900 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.0000 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.0200 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.0300 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.0400 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 11 32.0500 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.1300 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 37 32.1500 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 3 32.1600 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.1800 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 13 32.2300 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 6 32.2400 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 68 32.2500 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 14 32.2800 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 28 32.3000 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 4 32.3100 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.3200 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.3300 Open Market/Broker
Edward H. McDermott SEP IRA 07/14/08 Buy 1 32.3400 Open Market/Broker

Page 31 of 31 pages

EXHIBIT INDEX

EXHIBIT DOCUMENT DESCRIPTION
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A Agreement Pursuant to Rule 13d-1 (k)

B Powers of Attorney