REGISTRATION STATEMENT
Under
THE SECURITIES ACT OF 1933

CHEVRONTEXACO CORPORATION

(Exact name of registrant as specified in its charter)

TEXACO INC. STOCK INCENTIVE PLAN
TEXACO INC. DIRECTOR AND EMPLOYEE DEFERRAL PLAN
TEXACO PUERTO RICO INC. RETIREMENT SAVINGS PLAN
CHEVRONTEXACO CORPORATION EMPLOYEE SAVINGS INVESTMENT PLAN
CHEVRONTEXACO CORPORATION LONG-TERM INCENTIVE PLAN
CHEVRONTEXACO CORPORATION DEFERRED COMPENSATION PLAN FOR MANAGEMENT EMPLOYEES

CALCULATION OF REGISTRATION FEE      

       The Registration Statement shall become effective upon filing in accordance with Rule 462 under the Securities Act of 1933.

The Registrant has previously registered 80,504,336 shares of its Common Stock, par value $.75 per share, previously reserved for issuance under the Texaco Inc. Stock Incentive Plan, the Texaco Puerto Rico Inc. Retirement Savings Plan, the ChevronTexaco Corporation Employee Savings Investment Plan, the ChevronTexaco Corporation Long-Term Incentive Plan and the ChevronTexaco Corporation Deferred Compensation Plan For Management Employees (collectively, the “Plans”) under currently effective Registration No. 333-72672 filed on November 1, 2001, as previously amended (the “Registration Statement”).

As a result of a 2-for-1 stock split (the “Stock Split”) of the Common Stock of the Registrant in the form of a stock dividend distributed on September 10, 2004 (the “Distribution Date”) of one share of Common Stock for each share of Common Stock issued and outstanding on the record date of August 19, 2004, the 69,430,387 shares of Common Stock that are registered under the Registration Statement and not yet issued under the Plans as of the Distribution Date have been adjusted and increased by a ratio of 2-for-1, in order to account for the Stock Split and adjust the number of shares reserved and available for issuance pursuant to the Plans after the Distribution Date. Pursuant to Rule 416 under the Securities Act of 1933, the Registration Statement is deemed to cover these additional shares resulting from the Stock Split and the Registration Statement is hereby being amended to reflect the increase in the amount of shares of Common Stock registered.

This Post-Effective Amendment No. 4 affects only those provisions of the Registration Statement specifically restated herein. All other provisions of the Registration Statement remain unchanged.

Item 8. Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Post Effective Amendment No. 4 to Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Ramon, State of California, on January 18, 2005.

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment No. 4 to Registration Statement has been signed below by the following persons in the capacities indicated on the 18^th  day of January, 2005.

Pursuant to the requirements of the Securities Act of 1933, the Administrator of the ChevronTexaco Corporation Employee Savings Investment Plan has duly caused this Post-Effective Amendment No. 4 to Registration Statement No. 333-72672 to be signed on its behalf by the undersigned, thereunto duly authorized in the City of San Ramon, State of California, on the 18th day of January, 2005.

Pursuant to the requirements of the Securities Act of 1933, the Administrator of the Texaco Puerto Rico, Inc. Retirement Savings Plan has duly caused this Post-Effective Amendment No. 4 to Registration Statement No. 333-72672 to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Guaynabo, Puerto Rico, on the 18th day of January, 2005.

INDEX TO EXHIBITS