EXHIBIT 99.1

                                                                NR00-13
                                                             April 28, 2000

FOR IMMEDIATE RELEASE
VASTAR POSTPONES ANNUAL MEETING OF STOCKHOLDERS
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     Houston, TX -- Vastar Resources, Inc. (NYSE: VRI) today announced the
postponement of its annual meeting of stockholders, pending future developments
related to BP Amoco p.l.c.'s announced intention to make a tender offer for
Vastar's outstanding shares.  The meeting was originally scheduled for May 17.
A new meeting date has not yet been set.

     Vastar Resources, Inc., headquartered in Houston, Texas, finds, develops
and produces natural gas and liquid hydrocarbons.  The company is active in more
than 100 producing fields, with exploration and production activities in the
Gulf of Mexico shelf and deepwater, Gulf Coast, Rocky Mountains and Mid-
Continent areas.  BP Amoco owns indirectly approximately 81.9 percent of
Vastar's common stock.  Additional information on Vastar is available on the
company's website at www.vastar.com.

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Contacts:    James Bartlett  (281) 584-3448 (media)
             Ellen DeSanctis  (281) 584-3477 (financial)


As previously announced on March 16, 2000, BP Amoco advised Vastar's board of
its intention to commence a tender offer for the minority stockholding of the
company.  Vastar shareholders are strongly advised to read both the tender offer
statement and the solicitation/recommendation statement regarding the tender
offer when they become available, as these statements will contain

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important information relating to the tender offer. Shareholders will be able to
obtain these statements and any amendments thereto and other filed documents for
free at the Internet website maintained by the Securities and Exchange
Commission at www.sec.gov. In addition, Vastar Resources, Inc. will make the
solicitation/recommendation statement and any amendments thereto available for
free to Vastar's shareholders. Please direct your request for the solicitation/
recommendation statement to Ellen DeSanctis, Manager of Investor Relations and
Corporate Communications, Vastar Resources, Inc., 15375 Memorial Drive, Houston,
Texas 77079, Telephone (281) 584-3477.

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