PetroSun Announces the Selection of the Gas Technology Institute's Integrated Biorefinery Proposal by the DOE

  PetroSun, Inc. (PINKSHEETS: PSUD) announced
today that the Department of Energy has advised Gas Technology Institute of
Des Plaines, Illinois that its Integrated Biorefinery application has been
selected for negotiations leading to an award. The GTI team members include
PetroSun, Cargill, Blue Marble Energy, National Renewable Energy
Laboratory, Johnson Timber and Michigan Technological University.

The project was selected to complete preliminary engineering design for a novel process to produce green gasoline and diesel from woody biomass, agricultural residues and algae.

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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