SC 13D/A 1 chaparral13da_121905.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* CHAPARRAL RESOURCES, INC. ------------------------- (Name of Issuer) Common Shares, Par Value $0.0001 Per Share ------------------------------------------ (Title of Class of Securities) 159420207 ---------- (CUSIP Number) Vagit Alekperov President Open Joint Stock Company "Oil" Company "LUKOIL" Sretensky Blvd. 11 Moscow 101000 Russia +7 (095) 927-44-44 With a copy to: Brian A. Konradi Akin Gump Strauss Hauer & Feld LLP 1333 New Hampshire Avenue, N.W. Washington, D.C. 20036 (202) 887-4545 ------------------------------------------------ (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) December 5, 2005 ---------------- (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 ss.ss.240.13d-1(e), 240.13d-1(f) or 240.13d-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 ss.240.13d-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). SCHEDULE 13D 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) Open Joint Stock Company "Oil Company "LUKOIL" (foreign entity - no I.R.S. identification number) 2 Check the Appropriate Box if a Member of a Group (See Instructions) a. [ ] b. [ ] 3 SEC Use Only 4 Source of Funds (See Instructions) N/A 5 Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) [ ] 6 Citizenship or Place of Organization Russian Federation Number of 7 Sole Voting Power Shares 26,002,624 Beneficially 8 Shared Voting Power Owned By 0 Each 9 Sole Dispositive Power Reporting 26,002,624 Person 10 Shared Dispositive Power With 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 26,002,624 12 Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 13 Percent of Class Represented By Amount in Row (11) 63% 14 Type of Reporting Person (See Instructions) HC 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) LUKOIL Overseas Holding Ltd. (foreign entity - no I.R.S. identification number) 2 Check the Appropriate Box if a Member of a Group (See Instructions) a. [ ] b. [ ] 3 SEC Use Only 4 Source of Funds (See Instructions) N/A 5 Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) [ ] 6 Citizenship or Place of Organization British Virgin Islands Number of 7 Sole Voting Power Shares 26,002,624 Beneficially 8 Shared Voting Power Owned By 0 Each 9 Sole Dispositive Power Reporting 26,002,624 Person 10 Shared Dispositive Power With 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 26,002,624 12 Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 13 Percent of Class Represented By Amount in Row (11) 63% 14 Type of Reporting Person (See Instructions) HC 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) LUKOIL Overseas Investholding Ltd. (foreign entity - no I.R.S. identification number) 2 Check the Appropriate Box if a Member of a Group (See Instructions) a. [ ] b. [ ] 3 SEC Use Only 4 Source of Funds (See Instructions) N/A 5 Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) [ ] 6 Citizenship or Place of Organization British Virgin Islands Number of 7 Sole Voting Power Shares 26,002,624 Beneficially 8 Shared Voting Power Owned By 0 Each 9 Sole Dispositive Power Reporting 26,002,624 Person 10 Shared Dispositive Power With 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 26,002,624 12 Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 13 Percent of Class Represented By Amount in Row (11) 63% 14 Type of Reporting Person (See Instructions) HC 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) LUKOIL Overseas West Project Ltd. (foreign entity - no I.R.S. identification number) 2 Check the Appropriate Box if a Member of a Group (See Instructions) a. [ ] b. [ ] 3 SEC Use Only 4 Source of Funds (See Instructions) N/A 5 Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) [ ] 6 Citizenship or Place of Organization British Virgin Islands Number of 7 Sole Voting Power Shares 26,002,624 Beneficially 8 Shared Voting Power Owned By 0 Each 9 Sole Dispositive Power Reporting 26,002,624 Person 10 Shared Dispositive Power With 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 26,002,624 12 Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 13 Percent of Class Represented By Amount in Row (11) 63% 14 Type of Reporting Person (See Instructions) HC 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) Caspian Investments Resources Ltd. (foreign entity - no I.R.S. identification number) 2 Check the Appropriate Box if a Member of a Group (See Instructions) a. [ ] b. [ ] 3 SEC Use Only 4 Source of Funds (See Instructions) N/A 5 Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) [ ] 6 Citizenship or Place of Organization British Virgin Islands Number of 7 Sole Voting Power Shares 26,002,624 Beneficially 8 Shared Voting Power Owned By 0 Each 9 Sole Dispositive Power Reporting 26,002,624 Person 10 Shared Dispositive Power With 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 26,002,624 12 Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 13 Percent of Class Represented By Amount in Row (11) 63% 14 Type of Reporting Person (See Instructions) HC 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) NRL Acquisition Corp. (I.R.S. Identification No. 98-0425020) 2 Check the Appropriate Box if a Member of a Group (See Instructions) a. [ ] b. [ ] 3 SEC Use Only 4 Source of Funds (See Instructions) N/A 5 Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) [ ] 6 Citizenship or Place of Organization United States Number of 7 Sole Voting Power Shares 26,002,624 Beneficially 8 Shared Voting Power Owned By 0 Each 9 Sole Dispositive Power Reporting 26,002,624 Person 10 Shared Dispositive Power With 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 26,002,624 12 Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 13 Percent of Class Represented By Amount in Row (11) 63% 14 Type of Reporting Person (See Instructions) CO This Amendment No. 1 to Schedule 13D ("Amendment No. 1") relates to the common stock, $0.0001 par value per share (the "Shares"), of Chaparral Resources, Inc., a Delaware corporation (the "Issuer"). This Amendment No. 1 amends the initial statement on Schedule 13D filed with the Securities and Exchange Commission (the "Commission") on May 21, 2004, (the "Initial Statement") by NRL Acquisition Corp. and Nelson Resources Limited ("Nelson") and is being filed by the Reporting Persons (as defined herein) to reflect the merger/amalgamation of Nelson with and into Caspian Investments Resources Ltd. ("Caspian"), an indirect wholly owned subsidiary of LUKOIL (defined below). As a result of such merger/amalgamation, Nelson has ceased to exist as a separate corporate entity. Caspian, as the surviving company, has become the owner of all the rights and property of Nelson and is subject to all the obligations of Nelson. Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Initial Statement. Items 2, 4, and 7 of the Initial Statement are hereby amended as follows: Item 2. Identity and Background. Item 2 of the Initial Statement is hereby amended and restated as follows: This Statement is being filed on behalf of each of the following persons (collectively, the "Reporting Persons"): Open Joint Stock Company "Oil Company LUKOIL" ("LUKOIL"), a company formed under the laws of the Russian Federation whose principal business is exploration and production of oil and gas and the production and sale of oil products; LUKOIL Overseas Holding Ltd. ("LUKOIL Overseas Holding"), a company incorporated under the laws of the British Virgin Islands and wholly owned by LUKOIL, whose principal business is the operation of the international exploration and production activities of LUKOIL; LUKOIL Overseas Investholding Ltd. ("LUKOIL Overseas Investholding"), a company incorporated under the laws of the British Virgin Islands and wholly owned by LUKOIL Overseas Holding, whose principal business is that of a holding company; LUKOIL Overseas West Project Ltd. ("LUKOIL Overseas West"), a company incorporated under the laws of the British Virgin Islands and wholly owned by LUKOIL Overseas Investholding, whose principal business is that of a holding company; Caspian Investments Resources Ltd. ("Caspian"), a company incorporated under the laws of the British Virgin Islands and wholly owned by LUKOIL Overseas West, whose principal business is the acquisition, development and exploitation of oil and natural gas properties in Kazakhstan; and NRL Acquisition Corp., a corporation incorporated under the laws of Delaware and wholly owned by Caspian, whose principal business is that of acquiring and holding the shares of the Issuer. LUKOIL's principal business and principal office addresses are 11 Sretensky Blvd., 101000 Moscow, Russia. Each of the other Reporting Persons' principal business and principal office addresses are 1 Bolshaya Ordynka, 115035 Moscow, Russia. The name, citizenship, business address, and present principal occupation or employment and the name, principal business and address of any corporation or other organization in which such employment is conducted of each of the executive officers and directors of each of the Reporting Persons are set forth in Annex A hereto. During the last five years, none of the Reporting Persons, nor to the best of the knowledge of the Reporting Persons, any of the persons listed in Annex A, have been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors), nor been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. Item 4. Purpose of Transaction. Item 4 of the Initial Statement is hereby amended by adding the following final paragraph: Effective December 2, 2005, Mr. R. Frederick Hodder, Mr. Nicholas P. Greene and Mr. Simon Gill, who had been employees of Nelson resigned from the Board of Directors of the Issuer. Each of Mr. Hodder, who resigned as Chairman of the Board, and Mr. Gill, who resigned as Chief Executive Officer, have not been replaced. Messrs. Hodder, Greene and Gill have been replaced on the Board by Mr. Dmitry Timoshenko, Mr. Oktay Movsumov, and Mr. Boris Zilbermints, who are employees of LUKOIL. Item 7. Material to be Filed as Exhibits. Item 7 of the Initial Statement is hereby amended by adding the following exhibit: Exhibit L Joint Filing Agreement, dated as of December 19, 2005, by and among LUKOIL, LUKOIL Overseas Holding, LUKOIL Overseas Investholding, LUKOIL Overseas West Project, LUKOIL Overseas West Project, Caspian Investments Resources Ltd. and NRL Acquisition Corp. SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, the undersigned certifies that the information set forth in this Amendment No. 1 is true, complete and correct. Date: December 21, 2005 Open Joint Stock Company "Oil Company "LUKOIL" By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 LUKOIL Overseas Holding Ltd. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 LUKOIL Overseas Investholding Ltd. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 LUKOIL Overseas West Project Ltd. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 Caspian Investments Resources Ltd. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 NRL Acquisition Corp. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact EXHIBIT INDEX Page A. Joint Filing Agreement, dated as of December 19, 2005, by and among 18 LUKOIL, LUKOIL Overseas [] Holding, LUKOIL Overseas Investholding, LUKOIL Overseas West Project, LUKOIL Overseas West Project, Caspian Investments Resources Ltd. and NRL Acquisition Corp. ANNEX A INFORMATION REGARDING DIRECTORS AND EXECUTIVE OFFICERS OF REPORTING PERSONS A. OPEN JOINT STOCK COMPANY "OIL COMPANY "LUKOIL" (OAO "LUKOIL")

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH OAO "LUKOIL" CITIZENSHIP PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Vagit Alekperov President, Member of Russian Federation President of OAO "LUKOIL" Sretensky Blvd. 11, the Board of Directors Moscow 101000, Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Sergei Kukura First Vice-President Russian Federation First Vice-President of Sretensky Blvd. 11, OAO "LUKOIL" Moscow 101000, Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Ravil Maganov First Vice-President, Russian Federation First Vice-President of Sretensky Blvd. 11, Member of the Board of OAO "LUKOIL" Moscow 101000, Russia Directors ------------------------------- ---------------------------- ---------------------------- ---------------------------- Vladimir Nekrasov First Vice-President Russian Federation First Vice-President of Sretensky Blvd. 11, OAO "LUKOIL" Moscow 101000, Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Anatoly Barkov Vice President, Head of Russian Federation Vice President, Head of Sretensky Blvd. 11, the Main Division of the Main Division of Moscow 101000, Russia General Affairs, General Affairs, Corporate Security and Corporate Security and Communications Communications of OAO "LUKOIL" ------------------------------- ---------------------------- ---------------------------- ---------------------------- Ivan Masliaev Head of the Main Russian Federation Head of the Main Sretensky Blvd. 11, Division of Legal Support Division of Legal Moscow 101000, Russia Support of OAO "LUKOIL" ------------------------------- ---------------------------- ---------------------------- ---------------------------- Alexander Matytsyn Vice-President, Head of Russian Federation Vice-President, Head of Sretensky Blvd. 11, the Main Division of the Main Division of Moscow 101000, Russia Treasury and Corporate Treasury and Corporate Financing Financing of OAO "LUKOIL" ------------------------------- ---------------------------- ---------------------------- ---------------------------- Anatoly Moskalenko Head of the Main Russian Federation Head of the Main Sretensky Blvd. 11, Division of Human Resources Division of Human Resources Moscow 101000, Russia of OAO "LUKOIL" ------------------------------- ---------------------------- ---------------------------- ---------------------------- Leonid Fedun, Vice-President of the Russian Federation Vice-President of the Sretensky Blvd. 11, Main Division of Strategic Main Division of Strategic Moscow 101000, Russia Development and Investment Development and Analysis of Investment Analysis OAO "LUKOIL" ------------------------------- ---------------------------- ---------------------------- ----------------------------

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH OAO "LUKOIL" CITIZENSHIP PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Evgueni Havkin Secretary of the Board of Russian Federation Secretary of the Board of Sretensky Blvd. 11, Directors , Head of the Directors, Head of the Moscow 101000, Russia Board's office Board's office of OAO "LUKOIL" ------------------------------- ---------------------------- ---------------------------- ---------------------------- Lyubov Khoba Chief Accountant Russian Federation Chief Accountant of OAO Sretensky Blvd. 11, "LUKOIL" Moscow 101000, Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Dzhevan Cheloyants Vice-President, Head of Russian Federation Vice-President, Head of Sretensky Blvd. 11, the Main Division of Oil the Main Division of Oil Moscow 101000, Russia and Gas Production and and Gas Production and Infrastructure Infrastructure of OAO "LUKOIL" ------------------------------- ---------------------------- ---------------------------- ---------------------------- Vagit Sharifov Vice-President, Head of Russian Federation Vice-President, Head of Sretensky Blvd. 11, the Main Division of the Main Division of Moscow 101000, Russia Control and Internal Audit Control and Internal Audit of OAO "LUKOIL" ------------------------------- ---------------------------- ---------------------------- ---------------------------- Valery Grayfer Chairman of the Board of Russian Federation General Director of the Kogalym Noyabrskaya Ul., Directors OAO "RITEK" 7 Moscow Russia Kogalym, Noyabrskaya Ul., 7 Moscow, Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Mikhail Berezhnoi, Member of the Board of Russian Federation General Director of the Moscow Directors Non-Profit Organization Krasnopresnenskaya Lukoil-Garant Non-State Nab., 6 Moscow, Russia Pension Fund Krasnopresnenskaya Nab., 6 Moscow, Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Oleg Kutafin Member of the Board of Russian Federation Rector (President) of the Ul. Sadovaya-Kudrinskaya, Directors Moscow State Law Academy 9, Moscow, 123995, Russia Ul. Sadovaya-Kudrinskaya, 9, Moscow, 123995, Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Richard H. Matzke Member of the Board of United States of America Consultant 2678 Bishop Drive BR2 Directors 2678 Bishop Drive BR2 Suite 290 Suite 290 San Ramon, CA 94583 San Ramon, CA 94583 USA USA ------------------------------- ---------------------------- ---------------------------- ---------------------------- Kevin Meyers Member of the Board of United States of America President of 600 North Dairy Ashford, Directors Russia/Caspian Region, Houston, TX 77252-2197 ConocoPhillips USA 1-st Brestskaya St. 29 Moscow 125047 Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Nikolai Tsvetkov Member of the Board of Russian Federation Chairman of the Management Efremova Ul. 8, 119048 Directors Committee of the NIKoil Moscow, Russia Investment Banking Group Efremova Ul. 8, 119048 Moscow, Russia ------------------------------- ---------------------------- ---------------------------- ----------------------------

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH OAO "LUKOIL" CITIZENSHIP PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Igor Sherkunov, Member of the Board of Russian Federation Chairman of the Board of Krasnopresnenskaya Nab., 6, Directors Directors of Investment Moscow, Russia Group Capital Closed Joint Stock Company Krasnopresnenskaya Nab., 6, Moscow, Russia ------------------------------- ---------------------------- ---------------------------- ---------------------------- Alexander Shokhin Member of the Board of Russian Federation President of the State Myasnitskaya ul. 20, Directors University - Higher School 1001000 Moscow, Russia of Economics Myasnitskaya ul. 20, 1001000 Moscow, Russia ------------------------------- ---------------------------- ---------------------------- ----------------------------

B. LUKOIL OVERSEAS HOLDING LTD.

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH LUKOIL CITIZENSHIP PRESENT PRINCIPAL OVERSEAS HOLDING LTD. OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Ravil Maganov Director Russian Federation Vice-President of OAO 11, Sretensky Bulvar, LUKOIL Moscow, Russia, 101000 ------------------------------- ---------------------------- ---------------------------- ---------------------------- Dzhevan Cheloyants Director Russian Federation Vice-President of OAO 11, Sretensky Bulvar, LUKOIL Moscow, Russia, 101000 ------------------------------- ---------------------------- ---------------------------- ---------------------------- Alexander Matytsyn Director Russian Federation Vice-President of OAO 11, Sretensky Bulvar, LUKOIL Moscow, Russia, 101000 ------------------------------- ---------------------------- ---------------------------- ---------------------------- Andrey Kuzyaev Director, President Russian Federation President LUKOIL Overseas 11, Sretensky Bulvar, Moscow, Holding Ltd. Russia, 101000 ------------------------------- ---------------------------- ---------------------------- ---------------------------- Alexander Bulgakov Senior Vice-President Russian Federation Senior Vice-President 1, Bolshaya Ordynka, LUKOIL Overseas Holding Moscow, Russia, 101000 Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Azat Shamsuarov Senior Vice-President Russian Federation Senior Vice-President 1, Bolshaya Ordynka, Operations Operations LUKOIL Overseas Moscow, Russia, 101000 Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Oktay Movsumov Vice-President Russian Federation Vice-President 1, Bolshaya Ordynka, Finance/Treasurer Finance/Treasurer LUKOIL Moscow, Russia, 101000 Overseas Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Tatyana Shumyak Chief Accountant Russian Federation Chief Accountant LUKOIL 1, Bolshaya Ordynka, Overseas Holding Ltd. Moscow, Russia, 101000 ------------------------------- ---------------------------- ---------------------------- ---------------------------- Robert Elliot Vice-President Personnel Great Britain Vice-President Personnel 1, Bolshaya Ordynka, and Organizational Planning and Organizational Moscow, Russia, 115035 Planning LUKOIL Overseas Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ----------------------------

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH OAO "LUKOIL" CITIZENSHIP PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Vladimir Mikhnevich Vice-President Planning Russian Federation Vice-President Planning 1, Bolshaya Ordynka, LUKOIL Overseas Holding Moscow, Russia, 115035 Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Dmitry Timoshenko Vice-President/General Russian Federation Vice-President/General 1, Bolshaya Ordynka, Counsel Counsel LUKOIL Overseas Moscow, Russia, 115035 Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Mark Ralph Vice-President Business Canada Vice-President Business 1, Bolshaya Ordynka, Development Development LUKOIL Moscow, Russia, 115035 Overseas Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Rim Bagmanov Vice-President Production Russian Federation Vice-President Production 1, Bolshaya Ordynka, LUKOIL Overseas Holding Moscow, Russia, 115035 Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Anatoly Katoshin Vice-President Geology Russian Federation Vice-President Geology 1, Bolshaya Ordynka, LUKOIL Overseas Holding Moscow, Russia, 115035 Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Iskander Khalilov Vice President Russian Federation Vice President 1, Bolshaya Ordynka International Business International Business Moscow, Russia, 115035 LUKOIL Overseas Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Nikolay Kobyakov Vice-President Russia Russian Federation Vice-President Russia 1, Bolshaya Ordynka, LUKOIL Overseas Holding Moscow, Russia, 115035 Ltd. ------------------------------- ---------------------------- ---------------------------- ----------------------------

C. LUKOIL OVERSEAS INVESTHOLDING LTD.

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH LUKOIL CITIZENSHIP PRESENT PRINCIPAL OVERSEAS INVESTHOLDING LTD. OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Nikolay Isaakov Director Russian Federation Lawyer of Moscow 1, Bolshaya Ordynka, Representative Office of Moscow, Russia, 115035 LUKOIL Overseas Service Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Stanislav Shokhor Director Russian Federation Head of the Finance 1, Bolshaya Ordynka, Department of Moscow Moscow, Russia, 115035 Representative Office of LUKOIL Overseas Service Ltd. ------------------------------- ---------------------------- ---------------------------- ----------------------------

D. LUKOIL OVERSEAS WEST PROJECT LTD.

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH LUKOIL CITIZENSHIP PRESENT PRINCIPAL OVERSEAS WEST PROJECT LTD. OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Alexander Bulgakov Director Russian Federation Senior Vice-President 1, Bolshaya Ordynka, LUKOIL Overseas Holding Moscow, Russia, 115035 Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Azat Shamsuarov Director Russian Federation Senior Vice-President 1, Bolshaya Ordynka, Operations LUKOIL Overseas Moscow, Russia, 115035 Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Dmitry Timoshenko Director Russian Federation Vice-President/General 1, Bolshaya Ordynka, Counsel LUKOIL Overseas Moscow, Russia, 115035 Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Iskander Nassyrov President Russian Federation President of LUKOIL 13, Z. Tagieva Street, Overseas West Project Ltd. Baku, Azerbaijan, 370005 13, Z. Tagieva Street, Baku, Azerbaijan, 370005 ------------------------------- ---------------------------- ---------------------------- ----------------------------

E. CASPIAN INVESTMENTS RESOURCES LTD.

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH CASPIAN CITIZENSHIP PRESENT PRINCIPAL INVESTMENTS RESOURCES LTD. OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Dmitry Timoshenko Director Russian Federation Vice-President/General 1, Bolshaya Ordynka, Counsel LUKOIL Overseas Moscow, Russia, 115035 Holding Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Nikolay Isaakov Officer Russian Federation Lawyer of Moscow 1, Bolshaya Ordynka, Representative Office of Moscow, Russia, 115035 LUKOIL Overseas Service Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Stanislav Shokhor Officer Russian Federation Head of the Finance 1, Bolshaya Ordynka, Moscow, Department of Moscow Moscow, Russia, 115035 Representative Office of LUKOIL Overseas Service Ltd. ------------------------------- ---------------------------- ---------------------------- ----------------------------

F. NRL ACQUISITION CORP.

------------------------------- ---------------------------- ---------------------------- ---------------------------- NAME AND BUSINESS ADDRESS POSITION WITH NRL CITIZENSHIP PRESENT PRINCIPAL ACQUISITION CORP. OCCUPATION OR EMPLOYMENT ------------------------------- ---------------------------- ---------------------------- ---------------------------- Nikolay Isaakov Director Russian Federation Lawyer of Moscow 1, Bolshaya Ordynka, Representative Office of Moscow, Russia, 115035 LUKOIL Overseas Service Ltd. ------------------------------- ---------------------------- ---------------------------- ---------------------------- Stanislav Shokhor President and Director Russian Federation Head of the Finance 1, Bolshaya Ordynka, Department of Moscow Moscow, Russia, 115035 Representative Office of LUKOIL Overseas Service Ltd.. ------------------------------- ---------------------------- ---------------------------- ----------------------------

EXHIBIT A JOINT FILING AGREEMENT The undersigned hereby agree that Amendment No. 1 to the Statement on Schedule 13D with respect to the Common Stock of Chaparral Resources, Inc., dated as of December 21, 2005, is, and any further amendments thereto (including amendments on Schedule 13G) signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934. Date: December 21, 2005 Open Joint Stock Company "Oil Company "LUKOIL" By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 LUKOIL Overseas Holding Ltd. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 LUKOIL Overseas Investholding Ltd. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 LUKOIL Overseas West Project Ltd. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 Caspian Investments Resources Ltd. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact Date: December 21, 2005 NRL Acquisition Corp. By: /s/ Brian A. Konradi ------------------------------ Name: Brian A. Konradi Title: Attorney-in-Fact