Hyperdynamics to Hold Business Update Investor Conference Call September 30

SUGAR LAND, Texas, Sept. 21  /PRNewswire-FirstCall/ -- Hyperdynamics Corporation (NYSE Amex: HDY) will host an investor conference call at 10:00 a.m. Central Time on Wednesday, September 30, 2009 to provide an overall business update and to discuss details of a new Memorandum of Understanding with the government of the Republic of Guinea signed earlier this month.

  Investors may participate in the call either by phone or audio webcast.

  By Phone:       Dial 719-457-2713 at least 10 minutes before the call.

  By Webcast:     Visit the Events and Presentations page of Hyperdymnamics'
                  Investor Relations website at
                  http://investors.hyperdynamics.com/events.cfm.  Please log
                  on at least 10 minutes early to register and download any
                  necessary audio software.  A replay of the audio webcast
                  will be available shortly after the call.

                  Investors may send questions in advance for senior
                  management to address during the call by clicking on the
                  "submit a question" link under the September 30 conference
                  call/webcast link.

  About Hyperdynamics


Hyperdynamics is committed to providing energy for the future by exploring internationally for new sources of oil and gas. It holds the largest exploration and production license in West Africa in the Republic of Guinea covering 31,000 square miles. To find out more, visit the corporate website at http://www.hyperdynamics.com/.

  CONTACT: Dennard Rupp Gray & Easterly, LLC
           Ken Dennard, Managing Partner
           Jack Lascar, Partner
           [phone]
           Anne Pearson, Sr. Vice President
           [phone]

  HDY-IR


DATASOURCE: Hyperdynamics Corporation



CONTACT:  Ken Dennard, Managing Partner, or Jack Lascar, Partner,

[phone], or Anne Pearson, Sr. Vice President, [phone], all of

Dennard Rupp Gray & Easterly, LLC, for Hyperdynamics Corporation



Web Site:  http://www.hyperdynamics.com/ 

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