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                                                                     Exhibit 4.1

                         CERTIFICATE OF MEMBERSHIP UNITS

                                                        Membership
            Number                                        Units


                         EAST KANSAS AGRI-ENERGY, L.L.C.

   A LIMITED LIABILITY COMPANY ORGANIZED UNDER THE LAWS OF THE STATE OF KANSAS


               __________________________________________________ is/are the
owner(s) of_______________________________________ UNITS (____________) of the
Membership Units of East Kansas Agri-Energy, L.L.C., a Kansas limited liability
company. Changes in the actual Membership Units held by the Members are
reflected in the Certificate of Registration of the Company.

The Membership Units represented by this Certificate may not be transferred or
assigned except in compliance with the Operating Agreement of the Company, a
copy of which is available at the principal office of the Company.

IN WITNESS WHEREOF, the Company has caused this Certificate to be signed by its
duly authorized Chairman and Secretary as of this _______ day of _________ ,
20  .

   ---------------------------------            ----------------------------
      William R. Pracht, Chairman                  Dan Morgan, Secretary

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FOR VALUE RECEIVED, _______ HEREBY SELL, ASSIGN, AND TRANSFER UNTO _____________
____________________________________________________________ _____________ UNITS
REPRESENTED BY THE WITHIN CERTIFICATE, AND DO HEREBY IRREVOCABLY CONSTITUTE AND
APPOINT ____________________________________________ ATTORNEY TO TRANSFER THE
SAID UNITS ON THE BOOKS OF THE WITHIN NAMED COMPANY WITH FULL POWER OF
SUBSTITUTION IN THE PREMISES.

     DATED ___________________________________, _____________________,

IN PRESENCE OF


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     The transferability of the Units represented by this certificate is
     restricted. Such Units may not be sold, assigned, or transferred, nor will
     any assignee, vendee, transferee, or endorsee thereof be recognized as
     having acquired any such Units for any purposes, unless and to the extent
     such sale, transfer, hypothecation, or assignment is permitted by, and is
     completed in strict accordance with, applicable state and federal law and
     the terms and conditions set forth in the Operating Agreement as agreed to
     by each Member.

     The securities represented by this certificate may not be sold, offered for
     sale, or transferred in the absence of either an effective registration
     under the securities act of 1933, as amended, and under applicable state
     securities laws, or an opinion of counsel satisfactory to the company that
     such transaction is exempt from registration under the securities act of
     1933, as amended, and under applicable state securities laws.