UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
(Rule 13d-102)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULES 13D-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED
PURSUANT TO RULE 13d-2(b)
(Amendment No. 1 )*
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Plains Resources Inc.
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(Name of Issuer)
Common Stock $0.1 Par Value
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(Title of Class of Securities)
726540503
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(CUSIP Number)
December 31, 2001
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(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
/X/ Rule 13d-1(b)
/ / Rule 13d-1(c)
/ / Rule 13d-1(d)
*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 the disclosures provided in a prior cover page.
The information required in 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).
CUSIP No. 726540503
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(1) Names of Reporting Person.
S.S. or I.R.S. Identification No. of above person.
SCHRODER INVESTMENT MANAGEMENT NORTH AMERICA INC.
13-4064414
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(2) Check the Appropriate Box if a Member (a) / /
of a Group* (b) /X/
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(3) SEC Use Only
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(4) Citizenship or Place of Organization
Delaware
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Number of Shares (5) Sole Voting Power
Beneficially 844,733
Owned by --------------------------------------------------
Each Reporting (6) Shared Voting Power
Person With: 0
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(7) Sole Dispositive Power
844,733
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(8) Shared Dispositive Power
0
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(9) Aggregate Amount Beneficially Owned by Each Reporting Person
844,733
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(10) Check box if the Aggregate Amount in Row (9) Excludes Certain Shares*
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(11) Percent of Class Represented by Amount in Row (9)
3.623%
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(12) Type of Reporting Person*
IA
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*SEE INSTRUCTION BEFORE FILLING OUT!
CUSIP No. 726540503
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ITEM 1.
(a) Name of Issuer
Plains Resources Inc.
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(b) Address of Issuer's Principal Executive Offices
Plains Resources Inc.
500 Dallas Street, Suite 700
Houston, TX 77002
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ITEM 2.
(a) Name of Person Filing
Barbara Brooke Manning
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(b) Address of Principal Business Office or, if none, Residence
787 Seventh Avenue, 34th Floor
New York, NY 10019
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(c) Citizenship
Delaware
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(d) Title of Class of Securities
Common Stock $0.1 Par Value
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(e) CUSIP Number
726540503
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ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SECTIONS 240.13d-1(b) OR
240.13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:
(a) / / Broker or dealer registered under section 15 of the Act
(15 U.S.C. 78o).
(b) / / Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c) / / Insurance company as defined in section 3(a)(19) of the Act
(15 U.S.C. 78c).
(d) / / Investment company registered under section 8 of the Investment
Company Act of 1940 (15 U.S.C. 80a-8).
(e) /X/ An investment adviser in accordance with section
240.13d-1(b)(1)(ii)(E).
(f) / / An employee benefit plan or endowment fund in accordance with
section 240.13d-1(b)(1)(ii)(F).
(g) / / A parent holding company or control person in accordance with
section 240.13d-1(b)(1)(ii)(G).
(h) / / A savings association as defined in section 3(b) of the Federal
Deposit Insurance Act (12 U.S.C. 1813).
(i) / / A church plan that is excluded from the definition of an investment
company under section 3(c)(14) of the Investment Company Act of 1940
(15 U.S.C. 80a-3).
(j) / / Group, in accordance with section 240.13d-1(b)(1)(ii)(J).
CUSIP No. 726540503
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ITEM 4. OWNERSHIP
Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.
(a) Amount beneficially owned:
844,733
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(b) Percent of class:
3.623%
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(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote
844,733
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(ii) Shared power to vote or to direct the vote
0
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(iii) Sole power to dispose or to direct the disposition of
844,733
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(iv) Shared power to dispose or to direct the disposition of
0
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ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
There are no other persons with such rights who own less than 5% of
the issuer, except as reported herein.
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON
Not Applicable
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY
Not Applicable
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
Not Applicable
ITEM 9. NOTICE OF DISSOLUTION OF GROUP
Not Applicable
CUSIP No. 726540503
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ITEM 10. CERTIFICATION
(a) The following certification shall be included if the statement is filed
pursuant to section 240.13d-1(b):
By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were acquired and are
held in the ordinary course of business and were not acquired
and are not held for the purpose of or with the effect of
changing or influencing the control of the issuer of the
securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose
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.
February 12, 2002
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Date
/s/ Barbara Brooke Manning
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Signature
Barbara Brooke Manning
Senior Vice President and
Chief Compliance Officer
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Name/Title