June 11, 2007 Gary D. Allen and Linda M. Allen 2933 125th Ave. SE Eyota, MN 55934 Dana Allen 11304 19th Street SE Eyota, MN 55934 William Oehler Ward & Oehler, Ltd. 1765 Greenview Drive SW Rochester, MN 55902

Exhibit 10.25

June 11, 2007

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▇▇▇▇ & ▇▇▇▇▇▇, Ltd.
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Re:

Real Estate Option Agreement dated June 12, 2006 between ▇▇▇▇ ▇. ▇▇▇▇▇ and ▇▇▇▇▇ ▇. ▇▇▇▇▇, husband and wife, and ▇▇▇▇ ▇▇▇▇▇, a single person (the “Optionor”) and MinnErgy, LLC, a Minnesota limited liability company (the “Optionee”)

Dear Optionors:

We hereby extend the term of the option granted by the Agreement referenced above for an additional six months. Our check in the amount of $50,000.00 (Additional Option Payment) is enclosed. As so extended the option shall expire at 12:00 midnight on December 12, 2007.

Sincerely,

/s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇, Chairman

RECEIPT

I hereby acknowledge receipt of the Additional Option Payment of $50,000.00, and extension of the Option to December 12, 2007.

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