Exhibit 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation by reference in the Registration Statements on Form S-8 relating to the stock incentive plans of The Wiser Oil Company (Nos. 33-44171, 33-62441, 33-44172, 333-22525 and 333-15083) of our report dated February 24, 2000 appearing on page F-2 of this Annual Report on Form 10-K. /s/ ARTHUR ANDERSEN LLP Arthur Andersen LLP Dallas, Texas, February 24, 2000