Exhibit 5.1





                                   May 9, 2003



ChevronTexaco Corporation
6001 Bollinger Canyon Road
San Ramon, CA 94583

            Re:   Registration Statement on Form S-8


Ladies and Gentlemen:

            With reference to the Registration Statement on Form S-8 to be filed
by ChevronTexaco Corporation, a Delaware corporation (the "Company"), with the
Securities and Exchange Commission under the Securities Act of 1933, relating to
the 390,208 shares of the Company's common stock, par value $0.75 per share
issuable pursuant to the ChevronTexaco Corporation Non-Employee Directors'
Equity Compensation and Deferral Plan (the "2003 Directors' Plan"), it is our
opinion that such shares, when sold in accordance with the 2003 Directors' Plan
and applicable resolutions of the Board of Directors, are legally issued, fully
paid and nonassessable.

            The foregoing opinion is limited to the federal laws of the United
States, the laws of the State of California, and the General Corporation Law of
the State of Delaware, and we are expressing no opinion as to the effect of the
laws of any other jurisdiction.

            We hereby consent to the filing of this opinion with the Securities
and Exchange Commission as Exhibit 5.1 to the Registration Statement on Form
S-8.




                                                Very truly yours,

                                                /s/ PILLSBURY WINTHROP LLP

                                                PILLSBURY WINTHROP LLP


[E-04843]