EX-23 5 pwccon.txt AUDITOR CONSENT Exhibit 23(b) CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Post-Effective Amendment No. 3 on Form S-8 to the Form S-4 Registration Statement (Registration No. 333-55932) of our report dated March 9, 2001, relating to the consolidated financial statements of Tosco Corporation, which appears in the Current Report on Form 8-K/A of Phillips Petroleum Company, filed on October 31, 2001. We also consent to the reference to us under the heading "Experts" in such Registration Statement. /s/ PricewaterhouseCoopers LLP Phoenix, Arizona January 11, 2002