8-K

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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   ----------

                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

                                 Date of Report

                                 August 1, 2003

                              ULTRA PETROLEUM CORP.
             (Exact name of registrant as specified in its charter)

       Yukon Territory, Canada         0-29370             N/A
   (State or other jurisdiction of  (Commission      (I.R.S. Employer
   incorporation or organization)    File Number)  Identification Number)

                     (363 N Sam Houston Pkwy E., suite 1200
                               Houston, TX 77060)

                                 (281-876-0120)

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Item 12. Results of Operations and Financial Condition




                                   SIGNATURES

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

[August 4th, 2003]                                           By: David Russell
                                                                 -------------

EX-99

Webcast Alert:  Ultra Petroleum Corp. Announces Its 2nd Quarter Earnings
                         Conference Call on the Web

   HOUSTON, July 21 /PRNewswire-FirstCall/ -- In conjunction with Ultra
Petroleum Corp.'s (Amex: UPL) Second Quarter Earnings Conference Call, you are
invited to listen to its webcast that will be broadcast live over the Internet
on Tuesday, August 5, 2003 at 10:00 AM Central US.

    What:     Ultra Petroleum Corp.'s Second Quarter Earnings Conference Call
              on the Web

    When:     Tuesday, August 5, 2003 at 10:00 AM Central US

    Where:    http://www.firstcallevents.com/service/ajwz385730192gf12.html


    How:      Live over the Internet -- Simply log on to the web at the
              address above.

    Contact:  David Russell at 281-876-0120 x 302

   If you are unable to participate during the live webcast, the call will be
archived at www.ultrapetroleum.com .  To access the replay, click on the home
page.
   Ultra Petroleum is an independent, exploration and production company
focused on developing its long life natural gas reserves in the Green River
Basin of Wyoming, and oil reserves in Bohai Bay, offshore China.  Ultra is
listed on the American Stock Exchange under the ticker "UPL" and on the
Toronto Stock Exchange under the ticker "UP" with 74,087,668 shares
outstanding.
   (Minimum Requirements to listen to broadcast:
The Windows Media Player software, downloadable free from
http://www.microsoft.com/windows/windowsmedia/EN/default.asp and at least a
28.8Kbps connection to the Internet.  If you experience problems listening to
the broadcast, send an email to webcastsupport@tfprn.com .)

SOURCE  Ultra Petroleum
   -0-                             07/21/2003
   /CONTACT:  David Russell of Ultra Petroleum, +1-281-876-0120, ext. 302/
   /Photo:  NewsCom: http://www.newscom.com/cgi-bin/prnh/20020226/DATU029LOGO
            AP Archive:  http://photoarchive.ap.org
            PRN Photo Desk, +1-888-776-6555 or +1-212-782-2840/
   /Web site:  http://www.microsoft.com/windows/windowsmedia/EN/default.asp /
   /Web site:  http://www.ultrapetroleum.com /
   /Audio:  http://www.firstcallevents.com/service/ajwz385730192gf12.html /
   (UPL)

CO:  Ultra Petroleum
ST:  Texas
IN:  OIL
SU:  CCA MAV