UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                                (Amendment No. 1)

                            Chaparral Resources, Inc.
                                (Name of Issuer)

                           Warrants to Purchase Shares
                  of Common Stock, Par Value $0.0001 Per Share
                         (Title of Class of Securities)

                                    159420207
                                 (CUSIP Number)

                               Miss J. E. Munsiff
                                  Shell Centre
                                 London SE1 7NA
                                     England
                           Tel.: +44 (0) 207 934-3080
           (Name, Address and Telephone Number of Person Authorized to
                      Receive Notices and Communications)

                                 April 18, 2001
             (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  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purposes of Section 18 of the Securities  Exchange Act of
1934 (the "Act") or otherwise  subject to the liabilities of that section of the
Act but shall be subject to all other  provisions of the Act  (however,  see the
Notes).


                                  SCHEDULE 13D

-------------------                                                       ------
CUSIP No. 159420207                                                       Page 2
-------------------                                                       ------

--------------------------------------------------------------------------------
 1       NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Shell Capital Limited
--------------------------------------------------------------------------------
 2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
 3       SEC USE ONLY

--------------------------------------------------------------------------------
 4       SOURCE OF FUNDS

         OO
--------------------------------------------------------------------------------
 5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED            [ ]
         PURSUANT TO ITEMS 2(d) or 2(e)
--------------------------------------------------------------------------------
 6       CITIZENSHIP OR PLACE OF ORGANIZATION

         England
--------------------------------------------------------------------------------
NUMBER OF SHARES         7      SOLE VOTING POWER
BENEFICIALLY
OWNED BY EACH                   0
REPORTING PERSON        --------------------------------------------------------
WITH                     8      SHARED VOTING POWER

                                1,785,455 (consisting of Shares issuable upon
                                exercise of Warrants)
                        --------------------------------------------------------
                         9      SOLE DISPOSITIVE POWER

                                0
                        --------------------------------------------------------
                        10      SHARED DISPOSITIVE POWER

                                1,785,455 (consisting of Shares issuable upon
                                exercise of Warrants)
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,785,455 (consisting of Shares issuable upon exercise of Warrants)
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
         SHARES
                                                                             [ ]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         12.5%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         CO
--------------------------------------------------------------------------------


                                  SCHEDULE 13D

-------------------                                                       ------
CUSIP No. 159420207                                                       Page 3
-------------------                                                       ------

--------------------------------------------------------------------------------
 1       NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         The Shell Petroleum Company Limited
--------------------------------------------------------------------------------
 2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
 3       SEC USE ONLY

--------------------------------------------------------------------------------
 4       SOURCE OF FUNDS

         OO
--------------------------------------------------------------------------------
 5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED            [ ]
         PURSUANT TO ITEMS 2(d) or 2(e)
--------------------------------------------------------------------------------
 6       CITIZENSHIP OR PLACE OF ORGANIZATION

         England
--------------------------------------------------------------------------------
NUMBER OF SHARES         7      SOLE VOTING POWER
BENEFICIALLY
OWNED BY EACH                   0
REPORTING PERSON        --------------------------------------------------------
WITH                     8      SHARED VOTING POWER

                                1,785,455 (consisting of Shares issuable upon
                                exercise of Warrants)
                        --------------------------------------------------------
                         9      SOLE DISPOSITIVE POWER

                                0
                        --------------------------------------------------------
                        10     SHARED DISPOSITIVE POWER

                               1,785,455 (consisting of Shares issuable upon
                               exercise of Warrants)
--------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,785,455 (consisting of Shares issuable upon exercise of Warrants)
--------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
         SHARES                                                              [ ]
--------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         12.5%
--------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON

         HC
--------------------------------------------------------------------------------


This  Amendment  No. 1 amends and  supplements  the Schedule 13D (the  "Schedule
13D") originally  filed with the Securities and Exchange  Commission on February
15,  2000 by Shell  Capital  Limited  and The Shell  Petroleum  Company  Limited
(collectively, the "Reporting Persons"). Information in the Schedule 13D remains
in  effect  except  to the  extent  that  it is  superseded  by the  information
contained in this  Amendment  No.1.  Information  given in response to each item
shall be deemed to be incorporated by reference in all other items.  Capitalized
terms used and not defined herein shall have the meanings ascribed to such terms
in the Schedule 13D.

The  items  of  the  Schedule  13D  set  forth  below  are  hereby  amended  and
supplemented as follows:

Item 1.  Security and Issuer

The first sentence of Item 1 is amended and restated in its entirety as follows:

"This statement on Schedule 13D relates to warrants (the "Warrants") to purchase
up to 1,785,455  shares of the common  stock,  par value  $0.0001 per share (the
"Common Stock"), of Chaparral Resources, Inc. (the "Issuer")."

Item 3.  Source and Amount of Funds or Other Consideration

Item 3 is amended and  supplemented by adding the following  paragraph after the
final paragraph thereof:

"In order to clarify certain terms of the Warrants and to give effect to certain
changes in the capital  structure of the Issuer to satisfy the terms of the Loan
Agreement,  the Issuer and Shell  Capital  Limited  entered  into an amended and
restated  warrant  agreement (the "Amended and Restated  Warrant  Agreement") on
April 18, 2001.  Pursuant to the Amended and  Restated  Warrant  Agreement,  the
Issuer  granted to Shell  Capital  Limited  Warrants  representing  the right to
acquire  12.5% of the share  capital of the  Issuer,  exercisable  at a price of
$9.79 per  share,  subject to  adjustment  in  accordance  with the terms of the
Amended  and  Restated  Warrant  Agreement.  The Amended  and  Restated  Warrant
Agreement  is  attached  hereto as Exhibit 1,  which is hereby  incorporated  by
reference."

Item 4.   Purpose of the Transaction

Paragraph 1 of Item 4 is amended and restated in its entirety as follows:

"Shell Capital Limited  acquired the Warrants in connection with its undertaking
to underwrite and  participate in the funding of the Loan Agreement as described
in Item 3. The proceeds of the loan  facilities were used to finance the further
development  of an oil field  project in the  Republic of  Kazakhstan.  It was a
condition precedent in the Loan Agreement that the Issuer undertakes to nominate
as director of the Issuer,  on a best efforts  basis,  a nominee  identified  by
Shell  Capital  Services  Limited  (a  company  in the Group and a  wholly-owned
subsidiary of The Shell Petroleum  Company  Limited) for the period during which
the loan arrangement remains in place. Furthermore, pursuant to the terms of the
Loan  Agreement,  the Issuer  undertook,  on a best efforts basis, to complete a
rights offering for no less than US$6 million on or before June 30, 2000. As the
Issuer  satisfied only partially the equity  infusion  requirements  of the Loan
Agreement,  the Loan Agreement was amended in August 2000 to extend the Issuer's
equity support  commitment from US$6 million on or before June 30, 2000 to US$10
million on or before September 30, 2000. These revised equity  requirements were
satisfied through issuances of Common Stock by the Issuer and the acquisition of
US$ 3 million of Common Stock by Capco Resourses, Ltd. As a consequence of these
changes in the capital  structure  of the Issuer,  the Issuer and Shell  Capital
Limited deemed it prudent and in their best interest to clarify the terms of the
Warrants,  and as a result  they  entered in the Amended  and  Restated  Warrant
Agreement to reflect such clarifications deemed necessary and appropriate and to
give effect to the changes in the capital structure of the Issuer. The foregoing
summary of the Warrant  Agreement  and the Loan  Agreement  is  qualified in its
entirety by  reference  to Exhibits A, B and C,  respectively,  which are hereby
incorporated by reference."

Item 5.  Interest in Securities of the Issuer

(a)  Reference is made to the applicable  cover page for each  Reporting  Person
     for  information  concerning  (i) the  number of  shares  of  Common  Stock
     beneficially  owned by such  Reporting  Person,  and (ii) the percentage of
     outstanding  Common Stock  beneficially  owned by such Reporting Person, in
     each case as of the date of this filing.

(b)  Reference is made to the applicable  cover page for each  Reporting  Person
     for information  concerning  beneficial ownership of shares of Common Stock
     as to which such  Reporting  Person has sole power to vote or to direct the
     vote,  shared  power to vote or direct  the vote,  sole or shared  power to
     dispose or to direct the  disposition,  in each case as of the date of this
     filing.

(c)  During the past sixty  days,  none of the  Reporting  Persons  acquired  or
     disposed  of  beneficial  ownership  of Common  Stock  except as  described
     herein.

(d)  No  person  other  than the  Reporting  Persons  has the  right to  receive
     dividends  on the Common  Stock  issuable  upon  exercise  of the  Warrants
     beneficially  owned by the Reporting Persons described in this Schedule 13D
     and proceeds from the sale thereof.

(e)  Not applicable.

Item 7.  Material to be filed as Exhibits:

Exhibit 1 - Amended and Restated Warrant Agreement, dated April 18, 2001 between
            Chaparral Resources, Inc. and Shell Capital Limited.

Exhibit 2 - Agreement to Joint Filing of The Shell Petroleum Company Limited.


                                    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:  April 27, 2001

                                                SHELL CAPITAL LIMITED

                                                 /s/Michael patrick Treanor
                                                --------------------------------
                                                Name:    Michael Patrick Treanor
                                                Title:   Director


I.   Shell Capital Limited

Each person named below is a director and/or executive  officer of Shell Capital
Limited,  whose principal  business is described in Item 2 of Schedule 13D filed
on February 15, 2000 by Shell Capital  Limited and The Shell  Petroleum  Company
Limited.



NAME                      BUSINESS ADDRESS                 OCCUPATION                         CITIZENSHIP
                                                                                     
Stephen Murley            Shell Centre                     Member of the Board of Directors   British
Garfield Hodge            London SE1 7NA                   of Shell Capital Limited;
                                                           Director of Finance The Shell
                                                           Petroleum Company Limited

Michael Patrick Treanor   Shell Centre                     Member of the Board of Directors   British
                          London SE1 7NA                   of Shell Capital Limited; Chief
                                                           Executive Officer Shell Capital
                                                           Limited

Ralph Neil Gaskell        Shell Centre                     Member of the Board of Directors   British
                          London SE1 7NA                   of Shell Capital Limited; Group
                                                           Treasurer Shell International
                                                           Limited



                                                          SCHEDULE A (continued)

II.  The Shell Petroleum Company Limited

Each person named below is a director of The Shell  Petroleum  Company  Limited,
whose  principal  business  is  described  in Item 2 of  Schedule  13D  filed on
February  15,  2000 by Shell  Capital  Limited and The Shell  Petroleum  Company
Limited.



NAME                        BUSINESS ADDRESS                 OCCUPATION                       CITIZENSHIP
                                                                                     
Mr Hendrikus de Ruiter      Carel van Bylandtlaan 30         Retired Former Executive         Dutch
                            2596 HR The Hague                Royal Dutch Petroleum Company


Sir Peter Fenwick Holmes    Shell Centre                     Retired Former Executive         British
                            London SE1 7NA                   The "Shell" Transport and
                                                             Trading Company, p.l.c.


Sir John Southwood          Shell Centre                     Retired Former Executive         British
Jennings                    London SE1 7NA                   The "Shell" Transport and
                                                             Trading Company, p.l.c.


Mr Mark Moody-Stuart        Shell Centre                     Chairman & Managing Director     British
                            London SE1 7NA                   The "Shell" Transport and
                                                             Trading Company, p.l.c.


Mr Henricus Josephus        Carel van Bylandtlaan 30         Managing Director                Dutch
Maria Roels                 2596 HR The Hague                Royal Dutch Petroleum Company


Mr Stephen Murley           Shell Centre                     Member of the Board of           British
Garfield Hodge              London SE1 7NA                   Directors of Shell Capital
                                                             Limited; Director of Finance
                                                             The Shell Petroleum Company
                                                             Limited

Mr Paul David Skinner       Shell Centre                     Managing Director                British
                            London SE1 7NA                   The "Shell" Transport and
                                                             Trading Company, p.l.c.


Mr Maarten Albert van den   Carel van Bylandtlaan 30         President                        Dutch
Bergh                       2596 HR The Hague                Royal Dutch Petroleum Company

Mr Jeroen van der Veer      Carel van Bylandtlaan 30         Managing Director                Dutch
                            2596 HR The Hague                Royal Dutch Petroleum Company


Mr Lodewijk Christiaan      Carel van Bylandtlaan 30         Retired Former Executive         Dutch
van Wachem                  2596 HR The Hague                Royal Dutch Petroleum Company


Mr Philip Beverley Watts    Shell Centre                     Managing Director                British
                            London SE1 7NA                   The "Shell" Transport and
                                                             Trading Company, p.l.c.



                                  EXHIBIT INDEX

Exhibit No.     Description

    1           Amended and Restated Warrant Agreement

    2           Agreement to Joint Filing of The Shell Petroleum Company Limited