SCOTTSDALE, AZ--(MARKET WIRE)--Nov 13, 2008 -- PetroSun, Inc. (Other OTC:PSUD.PK - News) is pleased to announce that PetroSun BioFuels Marketing, a wholly owned subsidiary, has completed an Interim Biofuels Agreement to market an initial 384,000 gallons of certified B99 biodiesel.

Monthly B99 biodiesel allocations will be offered for sale to qualified buyers. The Company is working to complete final agreements with biodiesel refiners that will include future algal oil feedstock supply for conversion into biodiesel.

About PetroSun

PetroSun, Inc. is a diversified energy company with technology and operations in the commercialization of algae-to-biofuels, microbial enhanced oil recovery, oil and gas exploration, development and production and oilfield pipe and supply. For more information about PetroSun visit the company's website at www.petrosuninc.com

Forward-Looking Statements:

Except historical matter contained herein, matters discussed in this news release are forward-looking statements and are made pursuant to the safe harbor provision of the Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect assumptions and involve risks and uncertainties, which may affect the Company's business and prospects and cause actual results to differ materially from these forward-looking statements.

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