SOURCE: PetroSun, Inc.

PetroSun, Inc.

June 19, 2009 08:30 ET

PetroSun and Town of Gilbert, Arizona Reach Agreement on Algae-to-Biofuels Wastewater Pilot Program

SCOTTSDALE, AZ--(Marketwire - June 19, 2009) - PetroSun, Inc. (PINKSHEETS: PSUD) announced today that PetroSun BioFuels and the Town of Gilbert, Arizona have executed an agreement to commence an algae-to-biofuels wastewater pilot program at the Neely Wastewater Reclamation Facility. The plant is operated by Severn Trent Services.

The purpose of the program is to evaluate the feasibility of the utilization of wastewater as a source of nutrients and water for the cultivation of algae and its subsequent processing into feedstock for the production of biodiesel and other products. The Town of Gilbert will be offered all biodiesel produced from this pilot program at the actual cost of production and processing during the term of the program.

"The Town of Gilbert has a stated interest in expanding the sources for renewable and sustainable energy for the benefit of its citizens," stated Gordon LeBlanc, Jr., PetroSun CEO. "This wastewater pilot program is an important step in the commercialization of the algae industry."

About PetroSun

PetroSun, Inc. is a diversified energy company with technology and operations in oil, natural gas and helium exploration, development and production, commercialization of algae-to-biofuels, microbial enhanced oil recovery and oilfield pipe and supply.

For more information about PetroSun visit the company's website at www.petrosuninc.com.

Except historical matters 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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