Portrush announces completion of Scanio-Shelton # 8

Vancouver, British Columbia CANADA, November 13, 2007 /FSC/ - Portrush Petroleum Corporation (PSH - TSX Venture, PRRPF - OTCBB), (http://www.portrushpetroleum.com) wishes to provide an update regarding its continuing operations on the Scanio/Sheldon No.8 well in the Mission River property in Texas. The well has been drilled to a total depth of 7,950 feet and a decision to complete the well has been taken. The well has encountered hydrocarbon bearing sandstones within the main target zone.

A full suite of wireline logs and 42 sidewall cores have been taken. The operator intends to perforate the upper six feet with six shots per foot of the potential production zone and place the well on production.

Preliminary results, together with an in-depth analysis of log data obtained from the well suggest that the initial production from the well will be oil and the well can be placed on production without an upgrade to the existing facilities. A final interpretation of the overall hydrocarbon column encountered, and hence estimated reservoir volumes and a full analysis of all the log data and fluid sampling recovered from the well is currently being undertaken.

The Mission River lease is operated by McAlester and is located at the south end of the town of Refugio, Refugio County, Texas. The field has multiple pays at depths ranging from 2,000 to 8,500 feet. Portrush has a 10% working interest in the field. A further announcement will be made in due course regarding the hydrocarbon types encountered and the likely size of the discovery once all the data gathered from the well has been recovered and fully evaluated. This will include initial production rates.

Drilling is on schedule at the Portrush et al No.1-Moore 5-13-III in Moore township, Lambton County, Southwestern Ontario The prospect is located on trend and mid-point between two pinnacle reef gas storage pools, Kimball Colinville and Waubuno.