Southwestern Energy Company Invites You to Join Its Third Quarter 2004 Earnings Conference Call on the Web HOUSTON, Oct. 25 /PRNewswire-FirstCall/ -- In conjunction with Southwestern Energy Company's 2004 Third Quarter earnings release, you are invited to listen to its conference call that will be broadcast live over the Internet on Friday, October 29, 2004 at 10:00 a.m. CT (11:00 a.m. ET) with Harold M. Korell, President and Chief Executive Officer of Southwestern Energy Company. What: Southwestern Energy Company's 2004 Third Quarter Earnings Release When: 10:00 a.m. CT, October 29, 2004 Where: http://www.swn.com/ How: Live over the Internet -- Simply log on to the company's Web site: http://www.swn.com/ . Contact: Brad Sylvester at (281) 618-4897 Southwestern Energy Company is an integrated natural gas company whose wholly-owned subsidiaries are engaged in oil and natural gas exploration and production, natural gas gathering, transmission and marketing, and natural gas distribution. Additional information on the Company can be found on the Internet at http://www.swn.com/ . If you are unable to participate during the live webcast, the call will be archived on the Company's Web site http://www.swn.com/ . To access the replay, look under "Latest News & Information." (Minimum Requirements to listen to broadcast: The Windows Media Player software, downloadable free from http://windowsmedia.com/MediaGuide/Home , or The RealPlayer software, downloadable free from http://www.real.com/products/player/index.html , and at least a 28.8 Kbps connection to the Internet.) DATASOURCE: Southwestern Energy Company CONTACT: Brad Sylvester of Southwestern Energy Company, +1-281-618-4897 Web site: http://windowsmedia.com/MediaGuide/Home http://www.real.com/products/player/index.html Web site: http://www.swn.com/

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