Page 1 of 4
Schedule 13G/A
(12/31/00)
Under the Securities Exchange Act of 1934

Amendment No
NAME OF ISSUER
              Horizon Offshore
TITLE OF CLASS SECURITIES
              Common
CUSIP
              44043J105
              Amended Filing
______________________________________________________________________________
                                                                   Page 2 of 4
Item 1:       REPORTING PERSONS
              Wall Street Assoicates
              Tax ID# 33-0238287

Item 2:       Not Applicable

Item 3:

Item 4:       CITIZENSHIP
              A California Corporation

ITEM 5:       SOLE VOTING POWER
              772,900

ITEM 6:       SHARED VOTING POWER
              0.00

ITEM 7:       SOLE DISPOSITIVE POWER
              1,376,500

ITEM 8:       SHARED DISPOSITIVE POWER
              0.00

ITEM 9:       AGGREGATE AMOUNT BENEFICIALLY OWNED
              1,376,500

ITEM 10:      AGGRETATE AMOUNT EXCLUDES CERTAIN SHARES
              n/a

ITEM 11:      PERCENT OF CLASS REPRESENTED BY LINE 9
              5.89

ITEM 12:      TYPE OF REPORTING PERSON
              IA

______________________________________________________________________________
                                                                   Page 3 of 4
ITEM 1(A)      NAME OF ISSUER
               Horizon Offshore

ITEM 1(B)      ADDRESS OF ISSUER
               2500 City West Blvd
               Suite 2200
               Houston, TX 77042-3097

ITEM 2(A)      NAME OF PERSON FILING
               Wall Street Associates

ITEM 2(B)      ADDRESS OF PRINCIPAL BUSINESS OFFICE
               1200 Prospect Street
               Suite 100
               La Jolla, CA 92037

ITEM 2(C)      CITIZENSHIP
               A California Corporation

ITEM 2(D)      TITLE OF CLASS OF SECURITIES
               Common Stock

ITEM 2(E)      CUSIP NUMBER
               44043J105

ITEM 3         This statement is filed pursuant to Rule 13d-1 (b) or 13d-2
               and the  person filing is an Investment Advisor registered
               under the sectio 203 of the Investment Advisers Act of 1940.
_____________________________________________________________________________
                                                                  Page 4 of 4

ITEM 4         OWNERSHIP

ITEM 4(a)      AMOUNT BENEFICIALLY OWNED
               1,376,500

ITEM 4(b)      PERCENT OF CLASS
               5.89

ITEM 4(c)(i)   SOLE POWER TO VOTE OR TO DIRECT THE VOTE:
               772,900
         (ii)  SHARED POWER TO VOTE OR TO DIRECT THE VOTE:
               0.0
         (iii) SOLE POWER TO DISPOSE OR TO DIRECT THE DISPOSITION OF:
               1,376,500
         (IV)  SHARED POWER TO DISPOSE OR TO DIRECT THE DISPOSITION OF:
               0.00

ITEM 5         OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
               If this statement is being filed to report the fact that
               as of 12/31/01 the reporting person has ceased to be the
               beneficial owner of more than five percent of the class
               of securities, check the following         {  }

ITEM 6         OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF
               ANOTHER PERSON
               All Securities reported in this schedule are owned by
               advisory clients of Wall Street Associates.  Wall Street
               Associates disclaims beneficial ownership of all such
               securities. Each client has the right to receive dividends,
               and/or proceeds from the sale of securities.  To the
               knowledge and information available to Wall Street Associates
               at the date of this filing, the advisor acknowledges that no
               one client has an interest in 5% or more of the securities
               identified hereinabove.

ITEM 7         IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHCIH
               ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
               COMPANY:
               Not Applicable

ITEM 8         IDENTIFICATION AND CLASSIFICATION OF MEMBER OF THE GROUP:
               Not Applicable

ITEM 9         NOTICE OF DISSOLUTION OF GROUP:
               Not Applicable

ITEM 10        CERTIFICATION:
               By signing below I certify that, to the best of my knowledge
               and belief, the securities referred to above were acquired
               in the ordinary course of business and were not acquried
               for the purpose of and do not have the effect of changing or
               influencing the control of the issuer of such securities
               and were not acquired in connection with or as a participant
               in any transaction having such puposes or effect

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.

Date: February 13, 2002

WALL STREET ASSOCIATES
A California Corporation


Debby Holden
Operations Manager