Ultra Petroleum Corp. (NYSE: UPL) announces the following Webcast to discuss its second quarter 2009 financial and operating results: What: Ultra Petroleum Corp. Second Quarter 2009 Results Webcast When: August 4, 2009 at 11:00 a.m. Eastern Time Where: http://www.ultrapetroleum.com/ How: Live over the internet via the website address above Contact: Kelly Whitley, If you are unable to participate during the live Webcast, the conference call will be archived and can be accessed from Ultra's home page at http://www.ultrapetroleum.com/. About Ultra Petroleum Ultra Petroleum Corp. is an independent exploration and production company focused on developing its long-life natural gas reserves in the Green River Basin of Wyoming; the Pinedale and Jonah Fields; and is in the early development stages in the Appalachian Basin in Pennsylvania. Ultra is listed on the New York Stock Exchange and trades under the ticker symbol "UPL". The company had 151,440,114 shares outstanding on June 30, 2009. Additional information can be found on the company on the internet at http://www.ultrapetroleum.com/. This release can be found at http://www.ultrapetroleum.com/ http://www.newscom.com/cgi-bin/prnh/20020226/DATU029LOGO http://photoarchive.ap.org/ DATASOURCE: Ultra Petroleum Corp. CONTACT: Kelly L. Whitley, Manager Investor Relations of Ultra Petroleum Corp., +1-281-876-0120, Ext. 302, Web Site: http://www.ultrapetroleum.com/

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