FORM 8-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 _________________________ CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 28, 2000 VASTAR RESOURCES, INC. (exact name of registrant as specified in charter) Delaware 1-13108 95-4446177 (State or other (Commission (IRS Employer jurisdiction of File Number) Identification No.) Incorporation) 15375 Memorial Drive, Houston, Texas 77079 (Address of Principal executive offices) (Zip Code) Registrant's telephone number, including area code: (281) 584-6000 Item 5. Other Events. Attached as Exhibit 99.1 to this Form 8-K is a press release announcing the postponement of Vastar's Annual Meeting of Stockholders. 2 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, Vastar Resources, Inc. has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. VASTAR RESOURCES, INC. (Registrant) Dated: April 28, 2000 /s/ Steven J. Shapiro ___________________________ (signature) Steven J. Shapiro Senior Vice President and Chief Financial Officer (Duly Authorized Officer and Principal Financial Officer) 3 EXHIBIT INDEX Exhibit No. Description _______ ___________ 99.1 Press Release Dated April 28, 2000 Regarding Postponement of Vastar's Annual Meeting of Stockholders. 4