Exhibit 23.1

            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our report dated March 8, 2005, except for Note 8 as to
which the date is May 26, 2005, relating to the financial statements and
financial statement schedule, management's assessment of the effectiveness of
internal control over financial reporting and the effectiveness of internal
control over financial reporting, which appears in Unocal Corporation's Current
Report on Form 8-K dated May 26, 2005.




/s/PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
Los Angeles, California
July 15, 2005