Exhibit 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation by reference in this registration statement of our report dated March 27, 2001, included in Harken Energy Corporation's Form 10-K, for the year ended December 31, 2000, and to all references to our firm included in this registration statement. /s/ ARTHUR ANDERSEN LLP Houston, Texas November 29, 2001