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                                                                    EXHIBIT (99)

May 25, 1999                                                           Immediate


                                        Robert W. Krick, ext. 3141

UGI DECLINES TO REVISE OFFER
FOR UNISOURCE WORLDWIDE


VALLEY FORGE, PA, MAY 25--UGI Corp. (NYSE:UGI) reported today that it was
notified that the board of directors of Unisource Worldwide, Inc. (NYSE:UWW) has
decided to enter into a merger agreement with Georgia-Pacific Corp. (NYSE:GP).
UGI notified Unisource that UGI will not submit a revised offer to purchase
Unisource and that UGI will allow Unisource to terminate its merger agreement
with UGI. Under the terms of the merger agreement, UGI will receive a
termination fee of $25 million.

Lon R. Greenberg, chairman, president and chief executive officer of UGI stated,
"We are disappointed that the proposed merger will not occur. We believe that
the merger would have provided significant long term value to shareholders of
both companies. However, after due consideration, we felt our original proposal
was fair and we chose not to change it. We wish Unisource and Georgia-Pacific
well in the future."

Concurrently with its merger announcement on March 1, UGI also announced its
intention, in connection with the merger, to sell its utility and energy
marketing subsidiaries, reduce its annual dividend rate from $1.46 to $0.75 per
share and repurchase shares of UGI common stock. "At this point, we have
suspended the sale of our utilities and energy marketing companies while we
determine if the sale continues to be in the best interest of our shareholders,"
said Greenberg.

"The Board will consider the dividend rate at its next regular meeting in July,
which is the traditional meeting at which the dividend payable October 1 is
declared. We will continue to repurchase shares in the open market consistent
with our existing authorization. Our businesses are performing well and our
operating cash flow remains strong. We will continue to evaluate alternative
strategies to meet our growth objectives. As always, we remain committed to
maximizing long term value for our shareholders," concluded Greenberg.

UGI is a holding company with propane marketing, utility and energy marketing
subsidiaries. Through subsidiaries, UGI owns 58 percent of AmeriGas Partners,
L.P., the nation's largest retail propane marketer.

Comprehensive information about UGI Corporation is available on the World Wide
Web at HTTP://WWW.UGICORP.COM.


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