Exhibit 10.3**REVOLVING PROMISSORY NOTE**     Omaha, Nebraska $5,731,818.00 Note Date: September 20, 2007    Maturity Date: September 19, 2008         On or before September 19, 2008, ONE EARTH ENERGY, LLC (“BORROWER”), promises to pay to theorder of FIRST NATIONAL BANK OF OMAHA (“BANK”) at its headquarters in Omaha, Nebraska the principalsum hereof, which shall be Five Million Seven Hundred Thirty-One Thousand Eight Hundred Eighteenand no/100 Dollars ($5,731,818.00) or so much thereof as may have been advanced by BANK and shownon the records of BANK to be outstanding under this REVOLVING PROMISSORY NOTE and the AGREEMENT (asdefined below). Interest on the principal balance from time to time outstanding will be payable ata rate equal to the one month LIBOR RATE plus three hundred ten (310) basis points from time totime until maturity as such rate will be adjusted as provided for in the AGREEMENT, and at a rateequal to the one month LIBOR RATE plus nine hundred ten (910) basis points from time to time aftermaturity, whether by acceleration or otherwise. Interest shall be calculated on the basis of a360-day year, counting the actual number of days elapsed. Interest on the REVOLVING LOAN shall bepayable quarterly, in arrears.     The interest rate applicable to this REVOLVING NOTE is subject to reduction after a date sixmonths subsequent to the CONSTRUCTION LOAN TERMINATION DATE, as provided for in Section 2.15 of theAGREEMENT.     This REVOLVING PROMISSORY NOTE is executed pursuant to that certain Construction LoanAgreement dated September 20, 2007 between BANKS and BORROWER (the Construction Loan Agreement,together with all amendments, modifications and supplements thereto and all restatements andreplacements thereof is called the (“AGREEMENT”). The AGREEMENT, and any amendments orsubstitutions thereof or thereto, contains additional terms and conditions, including default andacceleration provisions, which are incorporated into this REVOLVING PROMISSORY NOTE by reference.All capitalized terms not otherwise defined herein shall have the same meanings as set forth in theAGREEMENT.     The aggregate unpaid principal amount hereof plus interest shall become immediately due andpayable without demand or further action on the part of BANK upon the occurrence of an EVENT OFDEFAULT as set forth under the AGREEMENT or any other LOAN DOCUMENT. If the maturity date of thisREVOLVING PROMISSORY NOTE is accelerated as a consequence of an EVENT OF DEFAULT, then BANK shallhave all the rights and remedies provided for in the AGREEMENT, the other LOAN DOCUMENTS orotherwise available at law or in equity. The rights, powers, privileges, options and remedies ofBANK provided in the AGREEMENT, the other LOAN DOCUMENTS or otherwise available at law or in equityshall be cumulative and concurrent, and may be pursued singly, successively or together at the solediscretion of BANK, and may be exercised as often as occasion therefor shall occur.
 

 
No delay or discontinuance in the exercise of any right, power, privilege, option or remedy shallbe deemed a waiver of such right, power, privilege, option or remedy, nor shall the exercise of anyright, power, privilege, option or remedy be deemed an election of remedies or a waiver of anyother right, power, privilege, option or remedy. Without limiting the generality of the foregoing,BANK’s waiver of an EVENT OF DEFAULT shall not constitute a waiver of acceleration in connectionwith any future EVENT OF DEFAULT. BANK may rescind any acceleration of this REVOLVING PROMISSORYNOTE without in any way waiving or affecting any acceleration of this REVOLVING PROMISSORY NOTE inthe future as a consequence of an EVENT OF DEFAULT. BANK’s acceptance of partial payment orpartial performance shall not in any way affect or rescind any acceleration of this REVOLVINGPROMISSORY NOTE made by BANK.     Unless prohibited by law, BORROWER will pay on demand all reasonable costs of collection,reasonable legal expenses and reasonable attorneys’ fees and costs incurred or paid by BANK incollecting and/or enforcing this REVOLVING PROMISSORY NOTE. Furthermore, BANK reserves the rightto offset without notice all funds held by BANK against debts owing to BANK by BORROWER.     All makers and endorsers hereby waive presentment, demand, protest and notice of dishonor,consent to any number of extensions and renewals for any period without notice; and consent to anysubstitution, exchange or release of collateral, and to the addition or releases of any other partyprimarily or secondarily liable.[SIGNATURE PAGE FOLLOWS]
 

 
     Executed as of the Note Date set forth above.         ONE EARTH ENERGY, LLC, an Illinois