Filed Pursuant to Rule 424(b)(3)

Registration No. 333-100481



 

PROSPECTUS SUPPLEMENT NO. 4 TO PROSPECTUS DATED FEBRUARY 10, 2003
 


$165,000,000

 4.75% Convertible Senior Debentures, Series K, due 2032

and Shares of Common Stock Issuable upon Conversion of the Debentures
 

 

            This prospectus supplement relates to the resale by the selling securityholders listed below of our 4.75% Convertible Senior Debentures, Series K, due 2032 and shares of our common stock issuable upon conversion of the debentures. You should read this prospectus supplement together with the prospectus dated February 10, 2003, which is to be delivered with this prospectus supplement.

______________________________
 

            Investing in our debentures or shares of our common stock involves risks. See "Risk Factors" beginning on page 9 of the prospectus.

_______________________________
 

            Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if the prospectus, as supplemented, is truthful or complete. Any representation to the contrary is a criminal offense.

_______________________________

 The date of this prospectus supplement is May 31, 2003.




SELLING SECURITYHOLDERS
 

            The information in the table below updates and supersedes the information appearing in (i) the table in the section entitled "Selling Securityholders" beginning on page 39 of the prospectus and (ii) similar tables included in any supplements to the prospectus (other than this prospectus supplement).

 

Name

Aggregate

Principal Amount of

Debentures that May be Sold

Percentage of

Debentures Outstanding

Number of Shares of Common Stock

Covered by the Prospectus(1)


Advisory Convertible

Arbitrage Fund (I) L.P.

$1,000,000

  

*

24,718


Allstate Life Insurance

Company

$2,600,000

  

1.6%

64,268


American Fidelity
Assurance Company

$350,000

  

*

8,651


Amerisure Mutual

Insurance Co.

$485,000

  

*

11,988


Attorney’s Title Insurance

Fund

$50,000

  

*

1,235


Aventis Pension Master

Trust

$125,000

  

*

3,089


Banc of America Securities

LLC

$3,527,000

  

2.1%

87,183


Bank Austria Cayman
Islands, Ltd.

$2,380,000

  

1.4%

58,830


Boilermaker - Blacksmith

Pension Trust

$565,000

  

*

13,966


CC Investments, LDC

$2,000,000

  

1.2%

49,437


CareFirst Blue Choice, Inc.

$125,000

  

*

3,089


CareFirst of Maryland, Inc.

$350,000

  

*

8,651


City of Birmingham

Retirement & Relief

 System

 

$475,000

  

 

*

 

11,741


City of Knoxville Pension

System

$175,000

  

*

4,325


Clinton Convertible

Managed Trading

Account 1 Limited

 

$275,000

  

 

*

 

6,797



S-2


 

Name

Aggregate

Principal Amount of

Debentures that May be Sold

Percentage of

Debentures Outstanding

Number of Shares of Common Stock

Covered by the Prospectus(1)


Clinton Riverside

Convertible Portfolio

Limited

$6,659,000

 

4.0%

164,602


Clinton Multistrategy
Master Fund, Ltd.

$6,415,000

 

3.9%

158,571


Conseco Fund Group -
Conseco Convertible

Securities Fund

$250,000

 

*

6,179


Convertible Securities
Fund

$100,000

 

*

2,471


D. E. Shaw Investment

Group, L.P.

$500,000

 

*

12,359


D. E. Shaw Valence

Portfolios, L.P.

$2,000,000

 

1.2%

49,437


Delta Pilots Disability and Survivorship Trust

$225,000

 

*

5,561


Dorinco Reinsurance

Company

$325,000

 

*

8,033


Freestate Health Plan, Inc.

$75,000

 

*

1,853


Genesee County

Employees’Retirement

System

 

$250,000

 

 

*

 

6,179


Greek Catholic Union of

the USA

$100,000

 

*

2,471


Group Hospitalization and

Medical Services, Inc.

$400,000

 

*

9,887


HFR CA Select Fund

$600,000

 

*

14,831


HSBC Trustee, Zola
Managed Trust

$725,000

 

*

17,921


HealthNow New York, Inc.

$100,000

 

*

2,471


Highbridge International

LLC

$20,350,000

 

12.3%

503,027


Innovest Finanzdientle

$1,000,000

 

*

24,718


Innovest

Finanzdienstleinstungs AG

$600,000

 

*

14,831



S-3


 

Name

Aggregate

Principal Amount of

Debentures that May be Sold

Percentage of

Debentures Outstanding

Number of Shares of Common Stock

Covered by the Prospectus(1)


JMG Capital Partners, LP

$750,000

 

*

18,539


JMG Triton Offshore Fund,

Ltd.

$750,000

 

*

18,539


J.P. Morgan Securities, Inc.

$2,750,000

 

1.7%

67,976


Jackson County

Employees’Retirement

System

 

$100,000

 

 

*

 

2,471


KBC Financial Products

USA Inc.

$451,000

 

*

11,148


KBC Financial Products

(Cayman Island) Limited

$7,000,000

 

4.2%

173,031


Knoxville Utilities Board

Retirement System

$80,000

 

*

1,977


Lehman Brothers Special

Financing Inc.

$50,000,000

 

 

30.3%

1,235,940


Lyxor Master Fund,

c/o Zola Capital

Management

 

$1,525,000

 

 

*

 

37,696


MFS Total Return Fund

$2,495,000

 

1.5%

61,673


MFS/Sun Life Mid Cap

Value Fund

$3,000

 

*

74


Macomb County

Employees’Retirement

System

 

$155,000

 

 

*

 

3,831


McMahan Securities Co.

L.P.

$1,350,000

 

*

33,370


Man Convertible Bond

Master Fund, Ltd.

$3,463,000

 

2.1%

85,601


Morgan Stanley Dean

Witter Convertible

Securities Trust

 

$2,500,000

 

 

1.4%

 

61,797


Nations Convertible

Securities Fund

$2,900,000

 

1.8%

71,684


NACM Investment Grade Convertible

$15,000

 

 

*

370



S-4


 

Name

Aggregate

Principal Amount of

Debentures that May be Sold

Percentage of

Debentures Outstanding

Number of Shares of Common Stock

Covered by the Prospectus(1)


NORCAL Mutual

Insurance Company

$200,000

 

*

4,943


Physicians’Reciprocal

Insurers Account #7

$600,000

 

*

14,831


RAM Trading Ltd.

$8,500,000

 

5.1%

210,109


RCG Baldwin, LP

$518,000

 

*

12,804


RCG Halifax Master Fund,

Ltd.

$1,238,000

 

*

30,601


RCG Latitude Master

Fund, Ltd.

$2,587,000

 

1.5%

63,947


RCG Multi Strategy A/C

LP

$3,105,000

 

1.8%

76,751


Ramius LP

$207,000

 

*

5,116


SEI Private Trust Company

$225,000

 

*

5,561


SG Cowen Securities -

Convertible Arbitrage

$5,000,000

 

3.0%

123,594


St. Thomas Trading, Ltd.

$5,537,000

 

3.4%

136,867


San Diego County
Employees Retirement

Association

 

$1,750,000

 

 

1.1%

 

43,257


Southern Farm Bureau Life Insurance

$300,000

 

*

7,415


Sterling Investment Co.

$1,000,000

 

*

24,718


Sunrise Partners Limited

Partnership

$2,000,000

 

1.2%

49,437


The Cockrell Foundation

$50,000

 

*

1,235


The Dow Chemical

Company Employees’

Retirement Plan

 

$1,100,000

 

 

*

 

27,190


The Fondren Foundation

$200,000

 

*

4,943


UBS AG London Branch

$50,000,000

 

30.3%

1,235,940



S-5


 

Name

Aggregate

Principal Amount of

Debentures that May be Sold

Percentage of

Debentures Outstanding

Number of Shares of Common Stock

Covered by the Prospectus(1)


United Food and

Commercial Workers

Local 1262 and Employers

Pension Fund

$225,000

 

*

5,561


Wachovia Securities Inc.

$70,000

 

*

1,730


Xavex Convertible

Arbitage #5

$315,000

 

*

7,786


Zazove Hedged

Convertible Fund L.P.

$2,500,000

 

1.5%

61,797


Zazove Income Fund L.P.

$2,000,000

 

1.2%

49,437


Zola Partners, L.P.

$4,750,000

 

2.9%

117,414


Zurich Institutional

Benchmarks Master Fund

Ltd.

$2,500,000

 

1.5%

61,797


Unnamed holders of

debentures or any future transferees, pledgees,

donees or successors of any

such unnamed holders (2)

$                  0

 

    0%

              0


Total:

$165,000,000(3)

 

100%

4,078,602

______________________
 

*

Less than 1%
 

(1)

Assumes conversion of all of the holders’debentures at a conversion rate of $40.455 per share of common stock. This conversion rate is subject to adjustment as described under "Description of Debentures –Conversion Rights - Adjustments to Conversion Rate" in the prospectus. As a result, the amount of common stock issuable upon conversion of the debentures may increase or decrease in the future.
 

(2)

Specific information about these holders will be set forth in supplements or amendments to the prospectus, if required.
 

(3)

The total principal amount of debentures at maturity listed above is more than $165,000,000 because certain of the above-listed selling securityholders may have, without notifying us, transferred debentures or otherwise reduced their position pursuant to transactions exempt from the registration requirements of the Securities Act of 1933, as amended ("Securities Act"). The maximum amount at maturity of debentures that may be sold under the prospectus, as supplemented, will not exceed $165,000,000.

_________________________
  

            The principal amounts of the debentures provided in the table above are based on information provided to us by the selling securityholders at various dates through May 31, 2003. Since the date on which each selling securityholder provided the information above, such selling securityholder may have sold, transferred or otherwise disposed of all or a portion or its debentures in a transaction exempt from the registration requirements of the Securities Act.
 

* * * * * *
 

S-6