EX-23 10 f10k2001_ex23.txt PWC CONSENT EXHIBIT 23 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (Nos. 33-63719 and 333-58415-01) and Form S-8 (Nos. 33-43231, 333-09685, 333-25039, 333-36987, 333-62199, 333-93223, 333-93225, 333-61532 and 333-73540) of Unocal Corporation of our report dated February 14, 2002, relating to the consolidated financial statements and financial statement schedule, which appears in this Annual Report on Form 10-K. /s/PricewaterhouseCoopers LLP ------------------------------ PricewaterhouseCoopers LLP Los Angeles, California March 15, 2002