EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated February 22, 2000, relating to the financial statements, which appears in Vastar Resources, Inc.'s Annual Report on Form 10-K for the year ended December 31, 1999. /s/PRICEWATERHOUSECOOPERS LLP Houston, Texas March 14, 2000