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

                                  July 26, 2004

                              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 File Number)    (I.R.S. Employer
incorporation or organization)                            Identification Number)

        (363 North Sam Houston Pkwy, E., Suite 1200., Houston, TX 77060)

                                 (281-876-0120)

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Item 12.  Announcement of Earnings Conf Call for July 26, 2004



                                   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.


[July 26, 2004]                              By: /s/ David Russell
                                                ----------------------------
                                                David Russell

EX-99

                                                                      Exhibit 99


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

[ 2004-07-21 ]

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 Wednesday, July 28, 2004 at 10:00 AM Central.
     What:     Ultra Petroleum Corp.'s Second Quarter Earnings Conference Call

               Webcast

     When:     Wednesday, July 28, 2004 at 10:00 AM Central

     Where: http://phx.corporate-ir.net/playerlink.zhtml?c=62256&s=wm&e=917899
               or at http://www.ultrapetroleum.com

     How:      Live over the Internet -- Simply log on to the web at either of

               the addresses 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 http://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" with 74,955,768 shares outstanding at the time of this
release. (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.) SOURCE Ultra Petroleum Corp.
    -0-                             07/21/2004
    /CONTACT:  David Russell of Ultra Petroleum Corp., +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, photodesk@prnewswire.com /
    /Web site:  http://www.microsoft.com/windows/windowsmedia/EN/default.asp /
    /Web site:  http://www.ultrapetroleum.com /
    /Audio:
     http://phx.corporate-ir.net/playerlink.zhtml?c=62256&s=wm&e=917899 /
    (UPL)

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