VANCOUVER, British Columbia, Sep 20, 2005 (Portrush Petroleum Corporation (TSX-V:PSH) (OTCBB:PRRPF) (http://www.portrushpetroleum.com) is pleased to announce it has launched an Investor Relations Website and retained the services of AGORA Investor Relations Corp. (``AGORA``) (http://www.agoracom.com) to provide a dynamic interactive investor relations service.

The Website will provide effective communication between Portrush Petroleum, its shareholders and the investment community through AGORA`s Internet-based investor relations system. Effective immediately, a customized and monitored Portrush Petroleum IR HUB (http://www.agoracom.com/IR/Portrush) will allow both Portrush and AGORA to communicate with all investors simultaneously, anytime and in real-time, while providing shareholders with equal access and complete transparency to all investor relations communications. The IR HUB will also provide one-click access to the Portrush broker fact sheet, a company profile, five most recent press releases, e-mail list registration, latest stock quote and chart information, and an executive audio address updated quarterly. In addition, the IR HUB provides investors with a monitored discussion forum for the purposes of constructive and high-quality discussion about the Company that is free of spam, bashing, hyping and profanity.

Second, AGORA will be fully responsible for creating, implementing and executing an investor relations strategy, the consolidation of which will save management a considerable amount of time, effort and expense, allowing them to focus on core business operations, while significantly improving shareholder communications.

Portrush Petroleum President and Director, Mr. Martin Cotter, stated, ``We believe the time has now come to significantly increase our communications with shareholders and the investment community. The solution provided by AGORA fulfills our need to manage and execute an IR strategy in a cost-efficient manner, while providing our management team with the ability to focus on executing the business plan. Our shareholders and Company will benefit greatly from near real-time communications, regularly planned updates and increased exposure.``

For all future Portrush investor relations needs, investors are asked to visit the Portrush IR Hub at http://www.agoracom.com/IR/Portrush where they can post questions and receive answers within the same day, or simply review questions and answers posted by other investors. Alternatively, investors are able to e-mail all questions and correspondence to PSH@agoracom.com where they can also request addition to the investor e-mail list to receive all future press releases and updates in real time.

AGORA has specialized in small-cap investor relations since 1997 and is the exclusive provider of all content to the AOL Small Cap Channel.

About Portrush Petroleum Corporation

Portrush Petroleum is a rapidly growing oil and natural gas exploration and production company.

To find out more about Portrush Petroleum Corporation (TSX-V:PSH) (OTCBB:PRRPF), visit our website at www.portrushpetroleum.com

The TSX Venture Exchange has not reviewed this press release and neither approved nor disapproved the information contained in this press release.

SOURCE: Portrush Petroleum Corp.

Portrush Petroleum Corporation

Corporate Inquiries

Mr. Martin Cotter, President and Director

604-696-2555

info@portrushpetroleum.com

Investor Relations

AGORA Investor Relations

www.agoracom.com/IR/Portrush

PSH@Agoracom.com