Hyperdynamics New Seismic Supports Structural, Stratigraphic, And Combined Plays; Potential Oil Columns Estimated In Excess Of 1,000 Feet

Houston, TX - Hyperdynamics Corporation announced recently that as described by Mr. James R. Spear, the Company's Executive Vice President of Exploration and Production, three types of prospects are being identified by the new seismic. These plays can be categorized by the hydrocarbon trapping mechanism delineated by the geophysics of the current 2-D data now being acquired. These three types include structural, stratigraphic and combination structural-stratigraphic. More detailed information is provided by the Company at: http://www.hyperdynamics.com/africa_exploration.htm .

The structural traps are typically large anticlinal structures located on the shelf/slope break. This type of trap is located in the Lower Cretaceous section. As disclosed in a press release last week, the structural traps delineated so far have been determined to have four-way closures and are measuring greater than 16 kilometers in length with two adjacent structures combining at a size of 33 x 8 kilometers. These structures delineated so far, if filled to the spill point, would offer high quality giant reservoirs with large oil columns greater than 1,000 feet.

The second play type is stratigraphic, typically being turbidite mounds and fans. These features are numerous through the total extent of the concession area which is over 31,000 square miles in size. These fans and/or mounds occur within the Upper Cretaceous section and are currently the focus of many of the operators within the Transform Margin Play of West Africa, where as many as 40 discoveries have been made in the last few years. To date, Hyperdynamics' geoscientists have identified numerous drillable fans within its repertoire of prospects of this type. This stratigraphic play type is typically located along the shelf-slope break or flexure zones.

The third type of play is characterized as being the stratigraphic-structural combination type trap and there are many examples of this throughout the concession. Regarding this, Mr. Spear said, "This play typically occurs within the Upper Cretaceous section although some have been identified within the Lower Cretaceous within the boundaries of our concession."

According to Jeff Sprain, Exploration Manager for Hyperdynamics, "our concession is like a Super Bowl of world-class prospects contained within the confines of this largest of West African continental shelf regions. The prospect portfolio continues to enlarge itself with its new 2D regional lines that are providing the basis for our planned 3D seismic program to follow this year."

SOURCE: Hyperdynamics Corporation