Hyperdynamics to Launch 3-D Seismic Survey Offshore Guinea

Republic of Guinea's Prime Minister and Other Local and International Dignitaries on Hand for the Sendoff

HOUSTON and CONAKRY, Republic of Guinea, August 9, 2010 - Hyperdynamics Corporation (NYSE Amex: HDY) celebrated the launching last
week from the Port of Conakry - Guinea's capital - of the seismic vessel
Ramform Challenger, which is scheduled to shoot the 3-D seismic program on
the Company's oil and gas exploration concession area.

The Republic of Guinea's Prime Minister, Jean-Marie Dore; Minister of
Transportation Gen. Mathurin Bangoura; Vice Minister of Mines and Geology
Aboubacar Koly Kourouma; and approximately 200 other members of the Guinean
government, diplomatic corps and visitors attended the send-off ceremony as
the vessel was preparing to deploy offshore to begin conducting this week a
3,635-square-kilometer 3-D seismic survey for Hyperdynamics.

This is the first 3-D survey to be acquired offshore Guinea. The seismic
data will be acquired over two separate portions of the contract area that
were identified as being the most prospective based on results from earlier
2D survey work.

"The 3-D survey represents the final step in our technical program to
acquire the detailed images of the prospects we need to select the location
for our first exploration well to be drilled in late 2011," said
Hyperdynamics' President and CEO Ray Leonard. "We believe these blocks hold
the potential for world-class oil discoveries."

Speaking during the ceremony, Famourou Kourouma, Hyperdynamics' Vice
President of African Affairs based in Conakry, said, "We are gathered here
today to mark a big step in our exploration program to discover petroleum oil
in Guinea. We want to reiterate that our company will put a work program in
place that will be deserving of your invaluable trust as well as that of the
people of Guinea."

Added Mike Palmer, Hyperdynamics' Vice President of Operations based in
Houston, "Hyperdynamics understands how important this project is to the
Republic of Guinea. We intend to remain a good partner for this country and
do our best to work with the government of Guinea to improve the lives of the
Guinean citizens."

Petroleum Geo-Services (PGS) of Norway is under contract with
Hyperdynamics both to acquire and process the seismic data. The Ramform
Challenger, equipped with the latest GeoStreamer(R) dual sensor technology,
will spend several days at the survey areas approximately 125 kilometers
offshore conducting calibration procedures and other preparations before the
actual data acquisition begins this week.

The acquisition work is expected to take approximately 13 weeks, and
processing should take an additional 25 weeks to complete, with initial
results available within 10 weeks. Hyperdynamics' evaluation of the processed
data is expected to begin in the first quarter of 2011.

Onshore support for the 3-D project will be provided by Hyperdynamics'
office located in Conakry.

About Hyperdynamics

Hyperdynamics is an emerging independent oil and gas exploration and
production company that is exploring for oil and gas offshore the Republic of
Guinea in West Africa. To find out more, visit our website at
www.hyperdynamics.com.

Forward Looking Statements

This news release and the Company's website referenced in this news
release contain forward looking statements within the meaning of Section 27A
of the Securities Act of 1933, as amended, and Section 21E of the Securities
Exchange Act of 1934, as amended, regarding Hyperdynamics Corporation's
future plans and expected performance that are based on assumptions the
Company believes to be reasonable. Statements preceded by, followed by or
that otherwise include the words "believes", "expects", "anticipates",
"intends", "projects", "estimates", "plans", "may increase", "may result",
"will result", "may fluctuate" and similar expressions or future or
conditional verbs such as "will", "should", "would", "may" and "could" are
generally forward-looking in nature and not historical facts. A number of
risks and uncertainties could cause actual results to differ materially from
these statements, including without limitation, funding and exploration
efforts, fluctuations in oil and gas prices and other risk factors described
from time to time in the Company's reports filed with the SEC, including the
Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2009.
The Company undertakes no obligation to publicly update these forward looking
statements to reflect events or circumstances that occur after the issuance
of this news release or to reflect any change in the Company's expectations
with respect to these forward looking statements.

HDY-IR

    Contacts: Dennard Rupp Gray & Easterly, LLC
              ---------------------------------
              Ken Dennard, Managing Partner
              Jack Lascar, Partner
              +1-713-529-6600
              Anne Pearson, Sr. Vice President
              +1-210-408-6321

Ken Dennard, Managing Partner, or Jack Lascar, Partner, +1-713-529-6600, or Anne Pearson, Sr. Vice President, +1-210-408-6321, all of Dennard Rupp Gray & Easterly, LLC for Hyperdynamics Corporation