Pantheon: Padre Island Program Set to Start Next Week

Pantheon Resources Plc said that it has been notified by Golden Gate Petroleum Ltd., the operator of the Padre Island Project Area offshore , that Parker Drilling's rig number 122 is now on location on Padre Island. Spudding of the Kindee ST 212 #1 well on the Plum Deep structure is scheduled on or around July 25.

The rig will be on contract to Golden Gate for 12 months with options to extend for up to a further 2 years by 6-month intervals. The Kindee ST 212 #1 well will initiate an active drilling program on the Padre Island Joint Venture (PIJV). Pantheon expects to be involved in the drilling of four exploration wells over an 18-month period. The exact timing and order of the drilling program remain dependent on the receipt of final location approvals from the relevant authorities.

The Plum Deep well is considered a key exploration well, with gross best estimate potential resources (previously described as "P50 potential reserves") estimated to be in a 161-293 bcf range. This represents potential material upside for Pantheon's shareholders in the event of success. Drilling costs are estimated to be around US$10.3 million.

Plum Deep lies within the same fault trap as Plum Shallow but is targeting deeper reservoirs at 9,500 to 15,000 feet. Plum Shallow was confirmed as a discovery in early 2006 and is currently flowing natural gas at a rate of 1.9 mmcfd. The discovery of hydrocarbons in the shallow section provides encouragement for Plum Deep as it confirms that it underlies a natural gas accumulation.

Plum Deep is expected to be the first of three exploration wells targeted at the deep section over the next 18 months. Extensive evaluation has confirmed six mature high-quality exploration targets, of which Plum Deep, Manzano and Murdock have been identified as the three largest prospects. Each of the latter offers the potential for significant additional reserves and early cash flow to Pantheon. The fourth prospect to be drilled in which Pantheon has an interest is Wilson, which is small.

All the currently defined prospects are planned to be drilled from onshore locations, with the probable exception of Kingsway. This offers the advantage of substantially reduced costs (both for exploration and development) compared with offshore. It also substantially reduces the lead times to production in the event of successful exploration.

Pantheon is initially participating in six prospects as a result of a farm-out agreement with Golden Gate concluded in April 2006. The prospect inventory comprises primarily large, high-quality natural gas plays in an under-explored deep section of the Gulf of Mexico. As a result of this agreement, Pantheon will earn a 25% working interest in each prospect by paying 33.333% of the costs associated with drilling each prospect up until the point of casing. The prospects covered by this farm-in are:

--Plum Deep, from 9,500 to 15,000 feet
--Manzano Deep, from 10,500 to 16,500 feet
--Murdock, all depths from surface
--Lemonseed, all depths below 9,100 feet
--Wilson, all depths from surface
--Kingsway, all depths from surface.

These prospects are all covered by 3D seismic. In the view of the Board of Pantheon, the deep JV of the PI Project Area is a moderate-risk (POS 15% to 36%), high-reward exploration venture. It offers the potential, if successful, of major value accretion to the company and its shareholders.

In accordance with the AIM Rules, the information in this report has been reviewed and signed off by Robert Rosenthal (BSc geology, MSc geology), Pantheon’s technical director, who has more than 30 years relevant experience within the sector.

Pantheon - Projected Drilling Program

Prospect/   Target/Type  Estimated Start Pantheon    Golden  IB
Well                     Date            Resources   Gate    Daiwa

Plum Deep*  Deep/        July 2006       25%         37.5%   37.5%
Wilson*     Shallow/     Sept. 2006      25%         37.5%   37.5%
Manzano*    Deep/        Oct. 2006       25%         37.5%   37.5%
Murdok      Deep/        Q1 2007         25%         37.5%  37.5%
South*      exploration

*Operated by Golden Gate

Drilling Program
Prospect   P50 Potential BCF   Current Planned Start Budgeted Drilling
Name         (gross)*        Date               Costs

Plum Deep    161-293         July 2006          US$10.3 million
Wilson       5-10            Second half 2006   US$5.4 million
Manzano      178-337         Second half 2006   US$9.1 million
Murdock      94-232          First half 2007    US$9.7 million
Lemonseed    87-123          tba                n.a.
Kingsway     16-20           tba                n.a.

*This range is based on various studies conducted on the acreage including Golden Gate and Pantheon's Independent Technical Adviser