Document:

<PAGE>

                                                                   EXHIBIT 10.13

                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

                                  PREPARED FOR:

                     OREGON TRAIL ETHANOL COALITION, L.L.C.

                               DAVENPORT, NEBRASKA

                                DECEMBER 30, 2002

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

                    DEVELOPMENT SERVICES/CONSULTING AGREEMENT

         This Development Services/Consulting Agreement (this "Agreement") is
entered into the 30/th/ day of December, 2002, by and between Oregon Trail
Ethanol Coalition, L.L.C., a Nebraska limited liability company of Davenport,
Nebraska (hereinafter "Oregon Trail Ethanol Coalition"), and GreenWay
Consulting, LLC, a Minnesota limited liability company of Morris, Minnesota
(hereinafter "GreenWay").

                                    RECITALS

         WHEREAS, GreenWay maintains expertise in the development, construction
and management of ethanol production facilities;

         WHEREAS, Oregon Trail Ethanol Coalition requires Project Services (the
"Services") in connection with the execution and delivery of project financing,
facility design and construction, and initial plant operation for an ethanol
production facility to be constructed during the term of this Agreement; and

         WHEREAS, Oregon Trail Ethanol Coalition desires to engage GreenWay to
render these specific Services.

         NOW THEREFORE, in consideration of the mutual covenants and
stipulations hereinafter set forth, the parties agree as follows:

SECTION 1 - SCOPE OF SERVICES. The scope of Services to be provided by GreenWay
are set forth below and are divided into three phases: Phase I (Project
Development), Phase II (Construction) and Phase III (Initial Plant Operations).

       1.       PHASE I - PROJECT DEVELOPMENT

       a.       PROJECT COORDINATION AND DEVELOPMENT:

                (i)      Assist and advise Oregon Trail Ethanol Coalition in
                         engaging other firms to provide risk management and
                         marketing expertise;
                (ii)     Assist and advise Oregon Trail Ethanol Coalition in
                         the site evaluation and preparation process;
                (iii)    Assist and advise Oregon Trail Ethanol Coalition in
                         the negotiations of various contracts including
                         insurance, utilities (gas, electrical, water, waste
                         water), rail, raw material supply, and product
                         off-take; and
                (iv)     Assist and advise Oregon Trail Ethanol Coalition in
                         obtaining various permits.

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

       b.       DESIGN AND CONSTRUCTION:

                (i)      Assist and advise Oregon Trail Ethanol Coalition in
                         negotiating a contract regarding price, schedule, and
                         performance with its design and engineering firm;
                (ii)     Assist and advise Oregon Trail Ethanol Coalition in
                         reviewing and approving preliminary and final process
                         and detailed design;
                (iii)    Assist and advise Oregon Trail Ethanol Coalition in
                         negotiating a contract regarding price, schedule, and
                         performance with its construction company.

       2.       PHASE II - CONSTRUCTION

       a.       Assist and advise Oregon Trail Ethanol Coalition in recruiting
                and hiring Oregon Trail Ethanol Coalition's owners'
                representative/construction supervisor;
       b.       Attend monthly site progress meetings between Oregon Trail
                Ethanol Coalition, the design engineer and contractor;
       c.       Assist and advise Oregon Trail Ethanol Coalition in
                recruiting and hiring all plant employees;
       d.       Assist and advise in providing initial employee training;
                and
       e.       Assist and advise in providing plant start-up assistance
                and coordinating the activities of the design engineer and
                contractor through and including the monitoring of the
                performance tests to assist in determining the performance
                criteria have been met.

       3.       PHASE III - INITIAL PLANT OPERATIONS

       a.       Assist and advise in providing on-site support staff for a
                period of up to three (3) months after successful start-up and
                commissioning;
       b.       Assist and advise in providing technical support on an
                as-needed basis for a period of an additional six (6) months;
       c.       Assist and advise in providing ongoing employee training
                during the term of this Agreement;
       d.       Continuously advise Oregon Trail Ethanol Coalition on ways to
                increase plant production during the term of this Agreement;
                and
       e.       Continuously advise Oregon Trail Ethanol Coalition on ways to
                improve plant efficiency during the term of this Agreement.

         Subject to the limitations set forth below, it is understood that
GreenWay will not limit its assistance to the Services specifically enumerated
above, but will extend its services and assistance as reasonably required to
provide for the successful implementation of the project plan. It is also
understood that all Services provided by GreenWay will be provided on a best
efforts basis with no warranties of performance. Notwithstanding the foregoing,
GreenWay represents and warrants that its Services will be performed by
qualified and trained personnel and in a professional and good and workmanlike
manner.

         Oregon Trail Ethanol Coalition and GreenWay acknowledge and agree that
GreenWay is not to provide, and is not responsible for, any services in
connection with the financing of Oregon Trail Ethanol Coalition. Accordingly,
notwithstanding anything to the contrary set forth

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

in this Agreement, GreenWay hereby agrees that in no event shall it or any third
party (whether a representative, consultant, advisor or otherwise) acting on its
behalf engage in any conduct which constitutes the effecting of a transaction in
the securities of Oregon Trail Ethanol Coalition, including, but not limited to,
any of the following conduct:

         (a) Discussing with any potential investor in Oregon Trail Ethanol
         Coalition the advantages or disadvantages of investments in general or
         of an investment in Oregon Trail Ethanol Coalition;

         (b) Providing any advice or analyses or making any recommendations to
         potential investors in Oregon Trail Ethanol Coalition with respect to
         an investment in Oregon Trail Ethanol Coalition;

         (c) Taking part in any negotiations between Oregon Trail Ethanol
         Coalition and a potential investor in Oregon Trail Ethanol Coalition or
         such potential investor's representative;

         (d) Assisting any potential investor in Oregon Trail Ethanol Coalition
         in making a decision whether to purchase the securities of Oregon Trail
         Ethanol Coalition;

         (e) Delivering any offering document of Oregon Trail Ethanol Coalition
         to a potential investor;

         (f) Receiving or handling any potential investor's subscription
         agreement or any funds used by a potential investor in Oregon Trail
         Ethanol Coalition in purchasing the securities of Oregon Trail Ethanol
         Coalition;

         (g) Maintaining any discretion with respect to Oregon Trail Ethanol
         Coalition's acceptance or rejection of a potential investor's
         subscription to purchase the securities of Oregon Trail Ethanol
         Coalition;

         (h) Participating in any advertisement, endorsement or general
         solicitation regarding an investment in the securities of Oregon Trail
         Ethanol Coalition;

         (i) Preparing materials relating to the sale or purchase of securities
         of Oregon Trail Ethanol Coalition or in the distribution of these
         materials to any potential investor in Oregon Trail Ethanol Coalition;

         (j) Performing any independent analysis of the sale of securities by
         Oregon Trail Ethanol Coalition or engaging in any due diligence
         activities;

         (k) Engaging in any other communication with a potential investor in
         Oregon Trail Ethanol Coalition regarding a possible investment in
         Oregon Trail Ethanol Coalition.

SECTION 2 - COMPENSATION. Compensation for the Services provided under this
Agreement shall be based on the following schedule:

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

         1. EXPENSE RETAINER. Oregon Trail Ethanol Coalition shall advance a
non-refundable retainer of $100,000 US (the "Retainer") to the attention of the
undersigned of GreenWay Consulting, LLC. Expenses under Section 3 hereof will be
applied against the Retainer. Oregon Trail Ethanol Coalition will be obligated
to pay for expenses incurred by GreenWay under Section 3 that exceed the
Retainer, however, it is understood that payment in excess of the Retainer is
not owed and will not be made until Oregon Trail Ethanol Coalition completes
Equity Capital (as defined below) funding. After the Retainer is received,
GreenWay shall not receive any additional compensation, other than monthly
expenses that exceed the Retainer as provided under Section 3, until Financial
Close (as defined below). The unused portion of the Retainer, if any, at
Financial Close will be offset against the fees due for Phase I scheduled below.

         Because (i) Oregon Trail Ethanol Coalition is undertaking a project in
its development stage and will have limited resources to pay GreenWay for the
Services until such time as Oregon Trail Ethanol Coalition obtains financing
through third-party sources and (ii) the amount of financing that Oregon Trail
Ethanol Coalition obtains through third-party sources will be attributable, in
part, to GreenWay's efforts in assisting Oregon Trail Ethanol Coalition to
successfully construct and operate the ethanol processing facility, Oregon Trail
Ethanol Coalition shall pay GreenWay a fee for the Services in accordance with
Schedule 1 set forth below.

SCHEDULE 1 - COMPENSATION FOR SERVICES

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------
SERVICE          FEE                        SOURCE OF FUNDS           PAYMENT TERMS
------------------------------------------------------------------------------------------------------
<S>              <C>                        <C>                       <C>
PHASE I          1.92% of Total Project     PROJECT FINANCING (AS     DUE IN FULL @ FINANCIAL CLOSE
                 Capitalization             DEFINED BELOW)
------------------------------------------------------------------------------------------------------
PHASE II         1% of Total Project        PROJECT FINANCING         25% DOWN @ FINANCIAL CLOSE -
                 Capitalization                                       50% @ MECHANICAL COMPLETION
                                                                      (AS DEFINED BELOW) - 25% @
                                                                      SUCCESSFUL COMMISSIONING (AS
                                                                      DEFINED BELOW)
------------------------------------------------------------------------------------------------------
PHASE III        0.75% of Total Project     WORKING CAPITAL (AS       PRORATED OVER 9 MONTHS AFTER
                 Capitalization             DEFINED BELOW)            SUCCESSFUL COMMISSIONING
------------------------------------------------------------------------------------------------------
</TABLE>

         In no case will GreenWay share or split the fees delineated above with
any other party currently assisting Oregon Trail Ethanol Coalition in other
endeavors. However, GreenWay may, at its sole discretion, choose to engage other
companies (other than as identified in Section 1) to perform the Services and
may choose to share a portion of its fees for the Services under this Agreement
provided by those other companies.

         The following definitions apply to this section:

         (1)    Financial Close: Closing of senior debt financing for the
                project.
         (2)    Mechanical Completion: Completion of construction such that corn
                can be ground for ethanol production.

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

         (3)    Successful Commissioning: Production of ethanol meeting design
                specifications on a daily basis of nameplate production, and all
                production meets the guarantees provided by engineers and
                contractors.
         (4)    Project Financing: Total debt and equity financing of the
                project.
         (5)    Total Project Capitalization: The total source of funds
                including, but not limited to, grants, subordinated debt, senior
                debts, the equity portion of Working Capital, and revolving line
                of credit all as established as of Financial Close, provided,
                however, "Total Project Capitalization" does not include any
                Prior Capital.
         (6)    Working Capital: Operating revenues of the plant.
         (7)    Prior Capital: Proceeds raised as a result of any private equity
                offering before the date of the signing of this Agreement, up to
                $4,000,000 of Lurgi/PSI subordinated debt and any and all grants
                awarded to or received by Oregon Trail Ethanol Coalition as of
                the date of the signing of this agreement.

SECTION 3 - EXPENSES. Oregon Trail Ethanol Coalition will be responsible for all
of GreenWay's out-of-pocket expenses, including travel, lodging, meals,
communication, cost of CPA prepared and approved GAAP financial information, and
reports prepared in fulfilling its duties for the Services outlined in Section
1. If expenses exceeding $5,000 per month are required, GreenWay shall seek
pre-approval by Oregon Trail Ethanol Coalition, which shall not be unreasonably
withheld. GreenWay shall submit monthly updated expense reports to Oregon Trail
Ethanol Coalition for reimbursement.

SECTION 4 - TERM OF AGREEMENT; TERMINATION. The term of this Agreement shall
begin on the date of execution set forth above and shall have an expiration date
nine (9) months after Successful Commissioning (as defined above) of the plant.
Oregon Trail Ethanol Coalition and GreenWay as the non-defaulting party each
shall retain the right to terminate this Agreement if either party fails to
perform ("defaults") under the terms of this contract and attachments, including
but not limited to meeting major milestones in development by their completion
dates in Schedule 2 below. All expenses under Section 3 shall be paid through
termination of this Agreement. Termination of this Agreement by Oregon Trail
Ethanol Coalition prior to Financial Close but after meeting Milestone 1 in
Schedule 2 below, followed by a Financial Close will result in Oregon Trail
Ethanol Coalition paying GreenWay a termination fee equal to the Phase I fee
shown in Schedule 1 above. To terminate this Agreement, the non-defaulting party
must notify the defaulting party in writing describing the cause of default and
pay any uncontested amounts that are due through the date of the notice.

SCHEDULE 2 - MILESTONES AND COMPLETION DATES

<TABLE>
<CAPTION>
       MILESTONE                                          COMPLETION DATE         FAILURE
       ---------                                          ---------------         -------
<S>                                                          <C>                  <C>
1.     Raising the  Minimum Subscription Amount Under        May 1, 2003          Oregon Trail Ethanol
       Under the Registration Statement                                           Coalition  or GreenWay  may
                                                                                  terminate

2.     Financial Close                                       June 30, 2003        Oregon Trail Ethanol
                                                                                  Coalition  or GreenWay  may
                                                                                  terminate
</TABLE>

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

SECTION 5 - INDEPENDENT CONTRACTOR. GreenWay is an independent contractor and
nothing in this Agreement shall constitute or designate GreenWay or any of its
employees or agents as employees or agents of Oregon Trail Ethanol Coalition.

SECTION 6 - CONFIDENTIALITY. Oregon Trail Ethanol Coalition agrees all services
being provided in this Agreement are the work product of GreenWay and
proprietary property of GreenWay. GreenWay agrees to license the use of the
proprietary property to Oregon Trail Ethanol Coalition exclusively for Oregon
Trail Ethanol Coalition's use for its development, construction and operation of
its Davenport, Nebraska area ethanol production facility only. Oregon Trail
Ethanol Coalition agrees it shall not disclose any proprietary property
(information or work product) to third parties, including the media, without the
third party executing a nondisclosure agreement attached as Exhibit A and first
obtaining written permission from GreenWay except that GreenWay's prior written
permission shall not be required is such disclosure is required by applicable
law, including, without limitation, state and federal securities laws and
regulations. GreenWay agrees that financial and other information about the
ethanol production project will be developed by Oregon Trail Ethanol Coalition
and disclosed to GreenWay. GreenWay agrees that proprietary information of
Oregon Trail Ethanol Coalition will only be used for purposes of Oregon Trail
Ethanol Coalition's project and will not be disclosed to others without first
obtaining written permission from Oregon Trail Ethanol Coalition. In the event
Oregon Trail Ethanol Coalition or GreenWay violates the terms and spirit of this
license and disclosure provision, Oregon Trail Ethanol Coalition and GreenWay
agree they will be subject to an injunction and such other relief as allowed by
law, including any damages caused to the other party and reimbursement to the
other party for any attorney fees and costs incurred by the other party in
enforcing this provision.

SECTION 7 - ENTIRE AGREEMENT/AMENDMENTS. This Agreement constitutes the entire
Agreement between the parties hereto and sets forth the rights, duties, and
obligations of each to the other as of this date. Any prior agreements,
promises, negotiations, or representations not expressly set forth in this
Agreement are of no force and effect. This Agreement may not be modified except
in writing executed by both GreenWay and Oregon Trail Ethanol Coalition.

SECTION 8 - LEGAL ADVICE. Each Party agrees that it has relied on its own legal
counsel or has had legal counsel available to them. The Parties agree they have
not relied on any legal representations from the other party.

SECTION 9 - BINDING EFFECT. This Agreement will be binding upon and inure to the
benefit of the parties hereunder, and their respective representatives,
distributees, successors and assigns. Except for assignment by GreenWay to
Diversified Energy Co., LLC or Agri-Source Consulting, LLC, any assignment,
delegation or attempted assignment or delegation of the rights or
responsibilities established under this Agreement shall be null and void without
the prior written duly executed consent by the party charged.

SECTION 10. NOTICES. Any written notice or communications required or permitted
by this Agreement, or by law, to be served on, given to, or delivered to either
party hereto by the other party, shall be in writing, and shall be deemed duly
served, given, or delivered when personally delivered to the party to whom it is
addressed, or in lieu of such personal services, when deposited in the United
States' mail, first-class postage prepaid, addressed to Oregon Trail Ethanol
Coalition at:

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

         Oregon Trail Ethanol Coalition, L.L.C.
         102 West 6th Street
         Box 267
         Davenport, Nebraska 68335
         Attention:   Mark L. Jagels

 with a copy to:

         Baird Holm Law Firm, LLP
         1500 Woodmen Tower
         Omaha, Nebraska 68102
         Attention: Victoria H. Finley

or to GreenWay at:

         GreenWay Consulting, LLC
         74 South County Road 22
         Morris, Minnesota 56267
         Attention:  Gerald Bachmeier

SECTION 11 - CONTROLLING LAW. This Agreement and the rights of the Parties
hereunder, will be governed by, interpreted and enforced in accordance with the
laws of the State of Minnesota.

SECTION 12 - DISPUTE/ARBITRATION. If any dispute arises out of or in connection
with this Agreement, the obligations arising under it or the interpretation of
its terms, the matter shall be referred to arbitration pursuant to the
Commercial Rules of the American Arbitration Association and according to the
following terms:

         (a)    Either Oregon Trail Ethanol Coalition or GreenWay may initiate
                arbitration by giving written notice requesting arbitration to
                the other.

         (b)    The parties shall select a single arbitrator by mutual
                agreement, but if they fail to select an arbitrator within ten
                (10) calendar days of the receipt of notice of arbitration, then
                each party shall within seven (7) business days thereafter,
                appoint their respective arbitrator and the two (2) arbitrators
                thus chosen shall together, within seven (7) business days of
                their appointment, select a third arbitrator and that three
                member panel shall arbitrate the dispute. In the event that the
                two arbitrators shall fail within seven (7) business days of
                their appointment to select a third arbitrator, then upon
                written request of either party, the third arbitrator shall be
                appointed by the American Arbitration Association. If a party
                shall fail to appoint an arbitrator as required the arbitrator
                appointed by the other party shall be the sole arbitrator. The
                arbitration shall be conducted in Omaha, Nebraska.

         (c)    Within fifteen (15) business days of the appointment of the
                arbitrator or panel, as the case may be, each party shall state
                in writing its position concerning the dispute, supported by the
                reasons therefore, and deliver its position to the arbitrator(s)
                and the other party. If either party fails to submit its
                position in a

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

                timely manner, the position submitted by the other party shall
                be deemed correct, and the arbitration shall be deemed
                concluded. The parties shall then have ten (10) calendar days to
                respond to the position of the other party and deliver that
                response to the arbitrator(s). The arbitrator(s) shall, within
                thirty (30) calendar days thereafter, meet to consider the
                documents presented in order to make a determination by majority
                on the issues in dispute. Within fifteen (15) business days of
                the end of their meeting the arbitrator(s) shall present their
                award. The arbitrator(s) may award a party the right to
                terminate this Agreement if termination is a remedy specified
                herein for the claim which is the subject of the arbitration.

         (d)    Each party in such arbitration shall bear one-half each of the
                expenses of the arbitrator(s), including their fees and costs,
                but each party shall bear their own expenses, including
                attorney's fees.

SECTION 13 - LIMITATION OF LIABILITY; INDEMNIFICATION. As more fully described
in Exhibit B hereto, Oregon Trail Ethanol Coalition will indemnify and hold
GreenWay harmless from and against all claims, liabilities, losses, damages and
expenses incurred, including fees and disbursements of counsel, related to or
arising out of this Agreement. Exhibit B is hereby incorporated into this
Agreement by reference and made a part hereof.

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

         IN WITNESS HEREOF, the parties have executed this Agreement on the date
first above written. By the signature of its representative(s) below, each party
affirms that it has taken all necessary action to authorize said
representative(s) to execute this Agreement.

EACH PARTY AGREES IT HAS READ AND UNDERSTANDS ALL THE TERMS OF THIS AGREEMENT.

OREGON TRAIL ETHANOL COALITION, L.L.C.

By: /s/ Mark L. Jagels
   ---------------------------------------

Its:   Chairman
      ------------------------------------

GREENWAY CONSULTING, LLC

By: /s/ Gerald Bachmeier
   ---------------------------------------

Its:     Chief Manager
      ------------------------------------

                                       10

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

                                    EXHIBIT A
                            NON-DISCLOSURE AGREEMENT
                           PROPRIETARY INFORMATION OF
           GREENWAY CONSULTING, LLC AND OREGON TRAIL ETHANOL COALITION

         THIS NON-DISCLOSURE AGREEMENT ("Agreement") is made as of __________,
2002 between Oregon Trail Ethanol Coalition, L.L.C., a Nebraska limited
liability company ("Disclosing Party"), and _______________________, a
_________________________ ("Receiving Party").

PREAMBLE

                  The Disclosing Party and the Receiving Party are currently
involved in discussions concerning the development of an ethanol processing
facility by Oregon Trail Ethanol Coalition (the "Transaction"). As a result of
such discussions, the Receiving Party may have access to certain confidential
information of the Disclosing Party and GreenWay Consulting, LLC ("GreenWay").
The Disclosing Party has entered into a nondisclosure agreement with GreenWay
prohibiting disclosure of GreenWay confidential information, subject to the
Receiving Party executing this Non-Disclosure Agreement. The Parties desire to
enter into this Agreement in order to allow disclosure to the Receiving Party
and prohibit disclosure of such information to any other party. Therefore, in
consideration of the Receiving Party being given access to certain confidential
information of the Disclosing Party and in exchange for the mutual covenant and
promises contained herein, with the intent to be legally bound, the Parties
agree as follows:

AGREEMENT

1.       Confidential Information.

         (a)      As used in this Agreement, the "Confidential Information" of
         the Disclosing Party shall mean all information concerning or related
         to the business, operations, financial condition or prospects of the
         Disclosing Party or any of their respective Affiliates, regardless of
         the form in which such information appears and whether or not such
         information has been reduced to a tangible form, and shall specifically
         include (1) all information regarding the officers, directors,
         employees, equity holders, customers, suppliers, distributors,
         insurers, reinsurers, brokers, independent contractors, sales
         representatives and licensees of the Disclosing Party and their
         respective Affiliates, in each case whether present or prospective, (2)
         all inventions, discoveries, trade secrets, processes, techniques,
         methods, formulae, ideas and know-how of the Disclosing Party and their
         respective Affiliates, (3) all financial statements, audit reports,
         budgets and business plans or forecasts of the Disclosing Party and
         their respective Affiliates and (4) all information concerning or
         related to the Transaction; provided, that the Confidential Information
         of the Disclosing Party shall not include (x) information which is or
         becomes generally known to the public through no act or omission of the
         Receiving Party and (y) information which has been or hereafter is
         lawfully obtained by the Receiving Party from a source other than the
         Disclosing Party (or any of their respective Affiliates or their

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

         respective officers, directors, employees, equity holders or agents) so
         long as, in the case of information obtained from a third party, such
         third party was or is not, directly or indirectly, subject to an
         obligation of confidentiality owed to the Disclosing Party or any of
         their Affiliates at the time such Confidential Information was or is
         disclosed to the Receiving Party. As used in this Paragraph, an
         "Affiliate" of a Disclosing Party shall mean an entity which controls,
         is controlled by or is under common control of a Disclosing Party, and
         the term "control" shall mean, with respect to any entity, the
         possession, direct or indirect, of the power to direct or cause the
         direction of the management and policies of such entity, whether
         through ownership of voting securities, by contract or otherwise.

2.       Nondisclosure of Confidential Information. Except as otherwise
         permitted by Section 3, the Receiving Party agrees that it will not,
         without the prior written consent of the Disclosing Party, disclose or
         use for its own benefit, or that of any third party, any Confidential
         Information.

3.       Permitted Disclosures. Notwithstanding Section 2, Receiving Party
         shall be permitted to:

         (a)      disclose Confidential Information to its officers, employees
         and counsel, but only to the extent reasonably necessary in order for
         such party to prepare, conduct and execute and deliver definitive
         documents for the Transaction; provided that Receiving Party shall take
         all such action as shall be necessary or desirable in order to ensure
         that each of such persons maintains the confidentiality of any
         Confidential Information that is so disclosed; and

         (b)      disclose Confidential Information to the extent, but only to
         the extent, required by law; provided, that prior to making any
         disclosure pursuant to this subsection, the Receiving Party shall
         notify the Disclosing Party of the same, and the Disclosing Party shall
         have the right to participate with the Receiving Party in determining
         the amount and type of Confidential Information of the Disclosing
         Party, if any, which must be disclosed in order to comply with
         applicable law, including, without limitation, state and federal
         securities laws and regulations.

4.       Return of Confidential Information. If activity in respect of the
         Transaction shall cease without the Transaction being consummated,
         then, promptly after the written request of the Disclosing Party, the
         Receiving Party shall return to the Disclosing Party all Confidential
         Information which is in tangible form and which is then in its
         possession (or in the possession of any of its officers, directors or
         employees).

5.       Term. This Agreement shall continue indefinitely.

6.       Equitable Relief. The Receiving Party acknowledges and agrees that the
         Disclosing Party and GreenWay would be irreparably damaged in the event
         that any of the provisions of this Agreement are not performed by the
         Receiving Party in accordance with their specific terms or are
         otherwise breached. Accordingly, it is agreed that the Disclosing Party
         or GreenWay shall be entitled to an injunction or injunctions to
         prevent breaches of this Agreement by the Receiving Party and shall
         have the right to specifically enforce this Agreement and the terms and
         provisions hereof against the Receiving Party in addition to

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

         any other remedy to which the Disclosing Party or GreenWay may be
         entitled in law or equity.

7.       Governing Law. This Agreement shall be a contract under the State of
         Minnesota and for all purposes shall be governed by and construed and
         enforced in accordance with the laws of Minnesota, excluding any choice
         of law provisions.

8.       Successors and Assigns. This Agreement shall be binding upon and inure
         to the benefit of each of the Parties and their respective successors
         and permitted assigns.

9.       No Assignment or Delegation. Any assignment, delegation or attempted
         assignment or delegation of the rights or responsibilities established
         under this Agreement shall be null and void without the prior written
         duly executed consent by the party charged.

10.      Severability of Provisions. If any provision of this Agreement shall be
         held invalid in a court of law, the remaining provisions shall be
         construed as if the invalid provision were not included in this
         Agreement.

11.      Amendment of Agreement. This Agreement may only be amended or modified
         through a written duly executed instrument by the Parties hereto. Any
         attempted oral amendment or modification is ineffective and therefore
         null and void.

12.      No Implied Waiver of Provisions. Either Parties' failure to insist in
         any one or more instances upon strict performance by the other party of
         any of the terms of this Agreement shall not be construed as a waiver
         of any continuing or subsequent failure to perform or a delay in
         performance of any term hereof.

13.      Notices. Any notice required by this Agreement or given in connection
         with this Agreement, shall be in writing, hand delivered or sent via
         registered or certified mail, and shall be given to the appropriate
         party:

         If to Disclosing Party:      Oregon Trail Ethanol Coalition, L.L.C.
                                      102 West 6th Street
                                      Box 267
                                      Davenport, Nebraska 68335
                                      Attn: Mark L. Jagels, President

                  With a copy to:     Baird Holm Law Firm, LLC
                                      1500 Woodmen Tower
                                      Omaha, Nebraska 68102
                                      Attn: Victoria H. Finley

                                      GreenWay Consulting, LLC
                                      74 South County Road 22
                                      Morris, Minnesota 56267

         If to Receiving Party:
                                      ------------------------------------

                                      ------------------------------------

                                      ------------------------------------

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                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

14.      Entire Agreement. This Agreement constitutes and contains the complete
         and final integrated agreement between the Parties regarding the
         subject matter herein. All prior negotiations, discussions and
         representations are merged into this Agreement. Each Party acknowledges
         that, except as expressly set forth herein, no representations of any
         kind or character have been made to it by any other party, or by any
         party's agents, representatives or attorneys, to induce the execution
         of this Agreement.

15.      Headings. Headings used in this Agreement are provided for convenience
         only and shall not be used to construe meaning or intent.

16.      Authority to Enter Agreement. The individuals signing this Agreement
         represent and guarantee each of them has the authority to bind their
         respective corporate entity or other principal.

17.      Copies of Agreement. A facsimile copy of this executed Agreement shall
         be deemed valid as if it were the original.

Executed as of the date first set forth above.

RECEIVING PARTY                          DISCLOSING PARTY

------------------------------------     Oregon Trail Ethanol Coalition, L.L.C.

By:                                      By:
    --------------------------------         --------------------------------
Its:                                     Its:
     -------------------------------          -------------------------------

cc:      GreenWay Consulting, LLC

                                       14

<PAGE>

                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

                                    EXHIBIT B

In consideration of the agreement of GreenWay Consulting to act on behalf of
Oregon Trail Ethanol Coalition pursuant to the attached Agreement, Oregon Trail
Ethanol Coalition agrees to indemnify and hold harmless GreenWay Consulting, its
affiliates (within the meaning of the Securities Act of 1933), and each of their
respective partners, directors, officers, agents, consultants, employees and
controlling persons (within the meaning of the Securities Act of 1933) (GreenWay
Consulting and each such other person or entity are hereinafter referred to as
an "Indemnified Person"), from and against any losses, damages, expenses and
liabilities (collectively "Liabilities") or actions, investigations, inquiries,
arbitrations, claims or other proceedings in respect thereof, including
enforcement of this agreement (collectively "Actions") (Liabilities and Actions
are herein collectively referred to as "Losses"), as they may be incurred
(including all reasonable legal fees and other expenses incurred in connection
with investigating, preparing, defending, paying, settling or compromising any
Losses, whether or not in connection with any pending or threatened Action, and
notwithstanding the absence of a final determination as set forth below as to
Oregon Trail Ethanol Coalition's obligation to reimburse an Indemnified Person
for such Losses and the possibility that such payments might later be held to
have been improper) to which any of them may become subject and which are
related to or arise out of any act, omission, transaction or event contemplated
by the attached Agreement. Oregon Trail Ethanol Coalition will not, however, be
responsible under the foregoing provisions with respect to any Losses to the
extent that it shall have been finally determined by arbitration in accordance
with the terms of the attached Agreement that such Losses resulted primarily
from actions taken or omitted to be taken by an Indemnified Person due to its
gross negligence or willful misconduct. To the extent that any prior payment has
been made by Oregon Trail Ethanol Coalition to such Indemnified Person is so
determined to have been improper by reason of such Indemnified Person's gross
negligence or willful misconduct, such Indemnified Person shall promptly pay
such amount to Oregon Trail Ethanol Coalition, together with interest, at the
prime rate announced from time to time by U.S. Bank, N.A.

GreenWay Consulting shall indemnify and hold harmless Oregon Trail Ethanol
Coalition from and against any and all Losses based primarily on or arising
proximately from any acts of gross negligence, willful misconduct, fraud or
misrepresentations by GreenWay Consulting. GreenWay Consulting shall follow the
same procedure for indemnification of Oregon Trail Ethanol Coalition as set
forth in this Exhibit B as if Oregon Trail Ethanol Coalition was the
"Indemnified Person".

If the indemnity referred to in this Exhibit B should be, for any reason
whatsoever, unenforceable, unavailable or otherwise insufficient to hold each
Indemnified Person harmless, Oregon Trail Ethanol Coalition shall pay to or on
behalf of each Indemnified Person contributions for Losses so that each
Indemnified Person ultimately bears only a portion of such Losses as is
appropriate (i) to reflect the relative benefits received by each

<PAGE>

                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

such Indemnified Person, respectively, on the one hand and Oregon Trail Ethanol
Coalition on the other hand in connection with the transaction or (ii) if the
allocation on that basis is not permitted by applicable law, to reflect not only
the relative benefits referred to in clause (i) above but also the relative
fault of each such Indemnified Person, respectively, and Oregon Trail Ethanol
Coalition as well as any other relevant equitable considerations; provided,
however, that in no event shall the aggregate contribution of all Indemnified
Persons to all Losses in connection with any transaction exceed the amount of
the fee actually received by GreenWay Consulting pursuant to the attached
Agreement. The respective relative benefits received by GreenWay Consulting and
Oregon Trail Ethanol Coalition in connection with any transaction shall be
deemed to be in the same proportion as the aggregate fee paid to GreenWay
Consulting in connection with the transaction bears to the total consideration
of the transaction. The relative fault of each Indemnified Person and Oregon
Trail Ethanol Coalition shall be determined by reference to, among other things,
whether the actions or omissions to act were by such Indemnified Person or
Oregon Trail Ethanol Coalition and the parties' relative intent, knowledge,
access to information and opportunity to correct or prevent such action or
omission to act.

Oregon Trail Ethanol Coalition also agrees that no Indemnified Person shall have
any liability to Oregon Trail Ethanol Coalition or its affiliates, directors,
officers, employees, agents or shareholders, directly or indirectly, related to
or arising out of the attached Agreement, except Losses incurred by Oregon Trail
Ethanol Coalition which it shall have been finally determined by arbitration in
accordance with the terms of the attached Agreement to have resulted primarily
from actions taken or omitted to be taken by such Indemnified Person due to its
gross negligence or willful misconduct. In no event, regardless of the legal
theory advanced, shall any Indemnified Person be liable for any consequential,
indirect, incidental or special damages of any nature. Oregon Trail Ethanol
Coalition agrees that without GreenWay Consulting's prior written consent it
shall not settle any pending or threatened claim, action, suit or proceeding
related to the attached Agreement unless the settlement also includes an express
unconditional release of all Indemnified Persons from all liability and
obligations arising therefrom, or Oregon Trail Ethanol Coalition reaffirms its
obligations to indemnify for or contribute to Losses incurred by any unreleased
Indemnified Person as herein provided.

Promptly after its receipt of notice of the commencement of any action, any
Indemnified Person will, if a claim in respect thereof is to be made against
Oregon Trail Ethanol Coalition hereunder, notify in writing Oregon Trail Ethanol
Coalition of the commencement thereof; but omission so to notify Oregon Trail
Ethanol Coalition will not relieve Oregon Trail Ethanol Coalition from any
liability hereunder which it may have to any Indemnified Person. If Oregon Trail
Ethanol Coalition so elects, Oregon Trail Ethanol Coalition may assume the
defense of such Action in a timely manner, including the employment of counsel
(reasonably satisfactory to GreenWay Consulting) and payment of expenses,
provided Oregon Trail Ethanol Coalition acknowledges in writing its
unconditional obligation pursuant to this agreement to indemnify GreenWay

<PAGE>

                            GREENWAY CONSULTING, LLC
                                  CONFIDENTIAL

Consulting in respect of such Action and provides to GreenWay Consulting
evidence reasonably satisfactory to GreenWay Consulting that Oregon Trail
Ethanol Coalition will have the financial resources to conduct such defense
actively and diligently and permits GreenWay Consulting and counsel retained by
GreenWay Consulting at its expense to participate in such defense.
Notwithstanding the foregoing, in the event GreenWay Consulting determines in
its sole discretion that it is advisable for the Indemnified Persons to be
represented by separate counsel, then GreenWay Consulting may employ on behalf
of the Indemnified Persons a single separate counsel to represent or defend such
Indemnified Persons in such action, claim, proceeding or investigation and
Oregon Trail Ethanol Coalition will pay the fees and disbursements of such
separate counsel as incurred.

In the event of any fundamental change involving the corporate structure of
Oregon Trail Ethanol Coalition, such as by merger, plan of exchange or sale of
all or substantially all of its assets, any executory obligations of Oregon
Trail Ethanol Coalition in the attached Agreement shall, if not assumed by
operation of law, be assumed by contract by the acquiring entity or arrangements
made to protect the interests of GreenWay Consulting reasonably satisfactory to
GreenWay Consulting.

If multiple claims are brought against GreenWay Consulting in any Action with
respect to at least one of which indemnification is permitted under applicable
law and provided for under this agreement, Oregon Trail Ethanol Coalition agrees
that any judgment, arbitration award or other monetary award shall be
conclusively deemed to be based on claims as to which indemnification is
permitted and provided for.

The obligations of Oregon Trail Ethanol Coalition referred to above shall be in
addition to any rights that any Indemnified Person may otherwise have.<PAGE>

                                                                   Exhibit 10.14

January 7, 2003

J. Larry Robertson
Lurgi PSI, Inc.
1790 Kirby Parkway, Suite 300

Subject:          Oregon Trail Ethanol Coalition, L.L.C. ("OTEC")
                  Ethanol Plant
                  Davenport, Nebraska
                  Notice to Proceed

Dear Larry:

Please accept this as our Notice to Proceed for the pre-engineering stage of the
OTEC ethanol project subject to and in accordance with the terms set forth
herein. The scope of work for this project includes the Preliminary Engineering
services set forth in the Preliminary Engineering Agreement between Lurgi PSI,
Inc. ("Lurgi PSI") and OTEC dated January 7, 2003, a copy of which is attached
hereto as Exhibit A and incorporated herein by this reference.

The following outlines the conditions of this letter:

               .  OTEC and Lurgi PSI will agree that the Preliminary Engineering
                  Agreement has been mutually negotiated and this Notice to
                  Proceed will be subject to all terms set forth therein except
                  as expressly limited or modified by this Notice to Proceed.

               .  Lurgi PSI understands and agrees that this Notice to Proceed
                  is limited to the Phase 1 Preliminary Engineering services as
                  set forth in the Preliminary Engineering Agreement which are
                  budgeted to cost $140,000. Lurgi PSI agrees to notify OTEC in
                  writing if the costs budgeted for the Phase 1 Preliminary
                  Engineering services are expected to exceed $140,000. Lurgi
                  PSI further agrees to notify OTEC in writing prior to
                  performing any Phase 2 Preliminary Engineering services or
                  incurring any costs or expenses in connection with the Phase 2
                  Preliminary Engineering services.

Signature at the bottom of this document will indicate acceptance of this letter
and authorize Lurgi PSI to proceed with the agreed scope of work as set forth
herein and in the Preliminary Engineering Agreement.

Sincerely,

                                                        Accepted:
Oregon Trail Ethanol Coalition, L.L.C.                  Lurgi PSI, Inc.

/s/ Mark L. Jagels                                      /s/ J. Larry Robertson
Mark L. Jagels                                          J. Larry Robertson
Chairman of the Board and President                     Chief Executive Officer

<PAGE>

                        PRELIMINARY ENGINEERING AGREEMENT

THIS PRELIMINARY ENGINEERING AGREEMENT, entered into as of the 7th day of
January 2003, by and between

                           OREGON TRAIL ETHANOL COALITION, LLC
                           102 West 6th Street
                           P.O. Box 267
                           Davenport, Nebraska 68335-9429

                           (hereinafter called "OWNER")

and                        LURGI PSI, INC.
                           1790 Kirby Parkway, Suite 300
                           Memphis, Tennessee 38138

                           (hereinafter called "CONTRACTOR")

WITNESSETH THAT:

WHEREAS, OWNER desires CONTRACTOR to furnish all materials, supplies and
equipment and perform design, engineering, procurement, construction,
commissioning, start-up and testing services for the installation, on a turnkey
basis, of an ethanol plant to be located in Davenport, Nebraska (the "Plant");
and

WHEREAS, CONTRACTOR desires to make such installation upon terms and conditions
to be agreed to with OWNER; and

WHEREAS, OWNER and CONTRACTOR for this purpose have entered into a Memorandum of
Understanding executed by the parties as of February 4, 2002 (the "MOU"), and
intend to enter into an Engineering, Procurement and Construction Agreement
(hereinafter referred to as the "EPC Agreement") for the supply of such
engineering, procurement and construction services, which EPC Agreement will
become effective only upon its execution by both parties and fulfillment of
certain conditions and requirements still outstanding; and

WHEREAS, OWNER desires, and CONTRACTOR has agreed, that CONTRACTOR shall start
immediately with certain preliminary engineering for the Plant before the EPC
Agreement has become effective;

NOW, THEREFORE, THE PARTIES HEREBY AGREE AS FOLLOWS:

<PAGE>
1.       DEFINITIONS

1.1      The services to be performed by CONTRACTOR under this Preliminary
         Engineering Agreement are referred to herein as the "Preliminary
         Engineering".

1.2      Unless otherwise noted, capitalized terms used in this Preliminary
         Engineering Agreement shall have the same meaning as assigned to them
         in the MOU.

2.       OBJECT OF THIS AGREEMENT

2.1      OWNER herewith authorizes and instructs CONTRACTOR, and CONTRACTOR
         agrees, to start with the design, engineering and related services for
         the Plant in accordance with the terms and conditions specified in this
         Preliminary Engineering Agreement.

2.2      The scope of the Preliminary Engineering to be performed by CONTRACTOR
         under this Preliminary Engineering Agreement is described in Exhibit A
         attached to and made a part hereof.

3.       PERFORMANCE OF PRELIMINARY ENGINEERING BY CONTRACTOR

3.1      CONTRACTOR shall commence the Preliminary Engineering within five (5)
         days after CONTRACTOR receives the down payment provided for in Article
         4.2. The Preliminary Engineering shall be completed within fifteen (15)
         weeks of the date CONTRACTOR receives the down payment provided for in
         Article 4.2.

3.2      All Preliminary Engineering shall be performed by CONTRACTOR in such a
         manner that it shall become part of the engineering intended to be
         performed by CONTRACTOR under the EPC Agreement once the EPC Agreement
         shall come into full force and effect.

3.3      CONTRACTOR shall perform the Preliminary Engineering in a professional
         and good and workmanlike manner and with that degree of care, skill and
         judgment that is normally exercised by professional engineering firms
         of national reputation in performing like services.

3.4      Title to all technical data furnished by OWNER to CONTRACTOR under this
         Preliminary Engineering Agreement shall remain with OWNER, and title to
         all technical data furnished by CONTRACTOR to OWNER under this
         Preliminary Engineering Agreement shall remain with CONTRACTOR.

3.5      All reports, drawings, specifications, computer files, field data,
         notes and other documents and instruments prepared by CONTRACTOR for
         the Project (collectively "Materials") shall remain the property of
         CONTRACTOR. However, upon termination of the Project and OWNER's
         reimbursement to CONTRACTOR of any amounts payable under this
         Preliminary Engineering Agreement, OWNER shall have the right to use
         Materials (except for CONTRACTOR's confidential information) for
         further development and construction of a substitute project at OWNER's
         sole risk. In the event OWNER uses the Materials for development and
         construction of a substitute project as provided in this section, OWNER
         agrees to the fullest extent permitted by law to indemnify and hold
         harmless CONTRACTOR against any damages, liabilities or costs including
         reasonable

                                       -3-

<PAGE>

         attorneys' fees and defense costs in any way connected with the use or
         modification of the Materials by OWNER or any person or entity that
         acquires the Materials from OWNER.

3.6      At the written request of either party, the parties shall terminate
         this Preliminary Engineering Agreement by a writing signed by both
         parties indicating the effective date of termination. In the event of
         any termination under this Article 3.6, OWNER shall pay to CONTRACTOR
         prior to the effective date of termination any amounts owed for
         Preliminary Engineering performed prior to the effective date of
         termination.

3.7      In the event CONTRACTOR breaches this Preliminary Engineering Agreement
         and such breach is not cured within thirty (30) days after written
         notice of such breach, OWNER may, at its election, terminate this
         Preliminary Engineering Agreement.

3.8      CONTRACTOR agrees to defend, indemnify and hold harmless OWNER from and
         against any and all claims, demands, liabilities and costs incurred by
         OWNER, including reasonable attorneys' fees, arising out of (a)
         CONTRACTOR'S performance or nonperformance of the Preliminary
         Engineering, or (b) the negligence or the intentional misconduct of
         CONTRACTOR.

3.9      OWNER agrees to defend, indemnify and hold harmless CONTRACTOR from and
         against any and all claims, demands, liabilities and costs incurred by
         CONTRACTOR, including reasonable attorneys' fees, arising out of
         OWNER's negligence or intentional misconduct.

3.10     The Preliminary Schedule in Exhibit C, attached to and made a part
         hereof, identifies the major activities and associated timelines for
         the Preliminary Engineering. OWNER and CONTRACTOR each agree to use
         reasonable efforts to complete these activities in a timely manner.

4.       PRELIMINARY ENGINEERING PRICE

4.1      OWNER agrees to pay to CONTRACTOR for the Preliminary Engineering the
         time and material not to exceed price of $450,000 ("Price") in
         accordance with the Manhour Rate and Reimbursable Cost Schedule in
         Exhibit B, attached to and made a part hereof.

4.2      OWNER shall pay to CONTRACTOR an initial payment of $45,000 ("Down
         Payment") upon execution of this Preliminary Engineering Agreement. The
         Down Payment will be credited against the first monthly request for
         payment described in Article 4.3.

4.3      On a monthly basis CONTRACTOR shall submit to OWNER a request for
         payment showing cost incurred, per Exhibit B, but not billed during
         the prior billing period. Payment is due and payable by OWNER in U.S.
         dollars within ten days of the date of the request for payment. In the
         event a request for payment remains unpaid for more than thirty (30)
         days, then CONTRACTOR shall have the right, at its option, to suspend
         its performance hereunder or to terminate this Preliminary Engineering
         Agreement upon ten (10) days' notice to OWNER. Late

                                       -4-

<PAGE>

     payments will incur interest charges of 1-1/2% per month. To avoid the
     penalty late charge, any questionable disputed charges should be subtracted
     from the invoice and the remainder paid within the ten (10) day period. The
     remit to address shall be: Lurgi PSI, Inc., 1790 Kirby Parkway, Suite 300,
     Memphis, Tennessee 38138.

4.4  The Price shall be credited toward the first monthly progress payment to be
     made by OWNER to CONTRACTOR under the EPC Agreement.

5.   LIMITATION OF LIABILITY

5.1  Except as provided in Article 5.2, all warranties, guarantees and
     liabilities of CONTRACTOR with respect to or in connection with the
     Preliminary Engineering provided by CONTRACTOR under this Preliminary
     Engineering Agreement shall only come into existence upon the EPC Agreement
     having become effective and then shall be limited as agreed therein, and
     nothing in this Preliminary Engineering Agreement shall be construed as
     expressing or implying the contrary.

5.2  ALL OTHER WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF
     MERCHANTABILITY OR FITNESS FOR USE FOR THE PURPOSE INTENDED, ARE EXPRESSLY
     EXCLUDED. THE LIABILITY OF CONTRACTOR UNDER AND IN CONNECTION WITH THE
     PRELIMINARY ENGINEERING IS LIMITED TO THE CORRECTION OF ANY DEFECTS IN THE
     ENGINEERING SERVICES OR DOCUMENTS DELIVERED TO OWNER UNDER THIS PRELIMINARY
     ENGINEERING AGREEMENT, PROVIDED NOTICE OF ANY DEFECTS IS GIVEN TO
     CONTRACTOR WITHIN 180 DAYS FROM PERFORMANCE OF SUCH SERVICES OR DELIVERY OF
     SUCH DOCUMENTS.

5.3  CONTRACTOR's total cumulative liability to OWNER under or relating to this
     Preliminary Engineering Agreement shall in no event exceed the Price
     actually paid to CONTRACTOR, exclusive of CONTRACTOR's obligations under
     Article 5.2.

5.4  Except for CONTRACTOR's obligations under Article 3.8, notwithstanding any
     other provision of this Preliminary Engineering Agreement, neither
     CONTRACTOR nor OWNER shall have any liability whatsoever for loss of
     production, loss of income, loss of profit, loss caused by plant shutdown,
     delayed opening, business interruption or other delay or for any other
     special, indirect, incidental or consequential loss or damage, or for any
     exemplary or punitive damages.

5.5  The limitations on and exclusions of damages set forth in this Article 5
     shall apply under any theory of law including breach of contract or
     warranty, tort (including negligence of any nature), strict liability or
     otherwise, and even in the case of CONTRACTOR's sole or concurrent
     negligence.

                                       -5-

<PAGE>

6.   INSURANCE

6.1  CONTRACTOR shall furnish Workman's Compensation Insurance as required by
     law; Comprehensive General Liability Insurance at limits of $500,000 per
     occurrence; Automobile Liability coverage at limits of $100,000 each
     accident for property damage; and Professional Liability Insurance in an
     amount not less than the Price payable under this Preliminary Engineering
     Agreement.

7.   ARBITRATION AND GOVERNING LAW

7.1  In case of any dispute or controversy arising between the parties hereto
     under or relating to this Preliminary Engineering Agreement or CONTRACTOR's
     performance or nonperformance of its obligations hereunder ("Dispute"), the
     parties shall endeavor to settle any such Dispute in an amicable way.

7.2  If a Dispute cannot be settled amicably, then the Dispute shall be finally
     decided by arbitration under the Commercial Arbitration Rules of the
     American Arbitration Association by three (3) arbitrators appointed in
     accordance with such Rules. Arbitration shall take place in St. Louis,
     Missouri.

7.3  This Preliminary Engineering Agreement shall be governed by, and
     interpreted in accordance with, the substantive law of Nebraska, exclusive
     of its choice of laws principles.

8.   GENERAL CONDITIONS

8.1  This Preliminary Engineering Agreement shall become binding and effective
     upon its having been signed by both parties hereto.

8.2  This Preliminary Engineering Agreement represents the entire agreement of
     the parties as to the subject matter hereof, and all oral and written
     statements, documents, letters or other communications between OWNER and
     CONTRACTOR and any representations and warranties made in connection with
     the subject matter of this Preliminary Engineering Agreement prior to its
     execution are superseded and shall become null and void upon execution of
     this Preliminary Engineering Agreement.

8.3  Any modifications or supplements to this Preliminary Engineering Agreement
     must be executed in writing and signed by both parties. Any verbal
     agreement must be confirmed by both parties in writing in order to be
     valid.

8.4  Should any provision of this Preliminary Engineering Agreement be or become
     invalid or unenforceable or prohibited by law or otherwise all other
     provisions of this Preliminary Engineering Agreement shall be unaffected
     thereby and shall nevertheless remain effective. Any invalid or
     unenforceable provision of this Preliminary Engineering Agreement shall be
     replaced by a valid and enforceable provision to be agreed upon between the
     parties hereto approaching as close as possible to that which both parties
     would have intended had they known of such invalidity or unenforceability
     when entering into this Preliminary Engineering Agreement.

                                       -6-

<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Preliminary Engineering
Agreement to be executed and signed as follows on the day and the date first
above written.

For and on behalf of                                  For and on behalf of
OREGON TRAIL ETHANOL COALITION, L.L.C.                LURGI PSI, INC.

/s/ Mark L. Jagels, Chairman of the Board             /s/ William R. Bellamy,
-----------------------------------------             -------------------------
                                                      Vice President-Operations

                                       -7-

<PAGE>

PRELIMINARY ENGINEERING AGREEMENT

                                    EXHIBIT A

                                SCOPE OF SERVICES

Lurgi PSI shall provide the following preliminary engineering services and
deliverables:

Phase One: Site Work Design   (Budget $140,000)
Site Work Design necessary to allow site to be prepared for construction,
including, but not limited to:
          . Grading
          . Soil preparation/remediation
          . Utility Water Discharge
          . Plant Fire Protection and Emergency Requirements (Appropriate
            Coordination with Local and State Authorities)
          . Storm Water and Water Discharge Permit Assistance
          . Plant Water Discharge and Treatment (if required by OWNER)
          . Plant Building Layout and General Arrangement
          . Plant Site Plan Reflecting Underground Utility, , , Sewer, and
            Fire Loop, Roads, etc.
          . Underground Utility Design and Fire Protection Loop
          . Bid Package Preparation for Site Work (to be issued no later than
            February 14 to bidders)
          . Project Development Activities
          . Provide information to Air Resource Specialists, Inc. for permitting
            required prior to starting Site Work
          . Estimated time line will be January 10, 2003 through February 14,
            2003

                                       -8-

<PAGE>

Phase Two: Pre Construction Design (Budget $310,000)
The intent of this phase of work is to complete major design for areas that are
on the critical path for overall plant construction, which include but are not
limited to:

      Preliminary P&ID's

      Major Equipment Specifications

      Major Tank Sizes (Fermenters, Storage Tanks)

      Preliminary General Arrangement Drawings

      Design and Specify DDGS Storage Building

Foundation Design and Structural Steel Design       Consists of the following:
          . Develop Process P&ID's and Control Strategies
          . Equipment Performance Specifications and RFQ Development
          . Process Equipment Evaluation
          . Detailed Equipment List and Horsepower
          . Electrical Equipment Specifications and RFQ's
          . Instrumentation List
          . Instrumentation Specifications
          . Computer Hardware Requirements and Specifications
          . Critical Process Equipment Specifications
          . Plant Standardization Guidelines
          . Process Description
          . Cooling Water Requirements and Make-Up Source
          . Provide design drawings for the concrete foundation, and provide RFQ
            documents necessary to procure the design, detailing, fabrication,
            delivery and erection of the DDGS building structural steel, siding,
            roofing and related components. This facility should be completed
            as soon as practical in order to provide weatherproof areas for
            material storage and fabrication. Foundation design for process
            building will begin as time allows during this phase.
          . Investigate existing rail siding, prepare drawings showing tie in to
            existing track, and analyze rail car traffic patterns to locate in
            plant switches in the appropriate locations. Finalize locations of
            tank farm, ethanol load out, DDGS load out and their relationship to
            the railroad and the in plant truck traffic.
          . Prepare calculations to size and place reinforcing steel in the
            foundations. Prepare drawings of foundations in plan and section
            views. Locate the foundations on the proper coordinates on the site
            plan. Locate elevations of the foundations with respect to the plant
            benchmark.
          . Project Development Activities

                                       -9-

<PAGE>

                                    EXHIBIT B
                                 LURGI PSI, INC.
                   MANHOUR RATE AND REIMBURSABLE COST SCHEDULE
                          EFFECTIVE SEPTEMBER 16, 2002

Lurgi PSI, Inc. executes its contract work for construction and engineering
services under a standard reimbursement schedule for manhour expenditures,
direct expenses, and in-house services. We invoice all projects in accordance
with a standard invoice procedure which includes a separate listing of manhour
expenditures, direct expenses, and scheduled expense items. Lurgi PSI, Inc.
keeps full and detailed accounts and records in accordance with established
accounting procedures.

1.   PERSONNEL COST REIMBURSEMENT SCHEDULE

     All personnel are charged to a project on an hourly basis for actual time
     spent in direct support of the project. Overtime hours required by Lurgi
     PSI, Inc. to support a project schedule are invoiced at standard rates
     without any premium time for overtime. All classifications will be invoiced
     listing the individuals who have worked on the project and number of hours
     worked.

2.   COSTS REIMBURSABLE AS DIRECT EXPENSES

     The following items are reimbursed at Lurgi PSI's direct cost without any
     additional charges for overhead or profit:

     2.1   Travel expense.
     2.2   Living expenses away from our office for any of our personnel.
     2.3   Long distance or toll telephone calls.
     2.4   Telegrams, teletype, express mail, and postage.
     2.5   Any special forms of printing and office supplies.
     2.6   Car mileage at 34 cents per mile.
     2.7   Special client requested legal services.
     2.8   Rent of offices other than Lurgi PSI, Inc. home office.
     2.9   Outside reproduction, blueprint, photographic supplies or
           services.
     2.10  Additional professional liability insurance beyond that
           provided in Section 7.
     2.11  Broad Form Endorsement CGL insurance for construction
           activities.
     2.12  Additional Umbrella Liability insurance and specialized
           insurance.
     2.13  Losses not covered by insurance maintained to jointly protect
           Owner and Lurgi  PSI, Inc.
     2.14  Permits, licenses, inspections, and other fees.
     2.15  Replacement of work not covered by project insurance.
     2.16  Additional automobile liability insurance.
     2.17  Field personnel costs including:

           .  Transportation and travel expenses for husband and wife
              relocation trips to evaluate housing.

           .  Moving expense per field employee for relocation to the job site
              based on

                                       10

<PAGE>

               three competitive quotes.

          .    Per diem expenses for each day of assignment beginning with two
               weeks from date of relocation and terminating upon end of
               assignment. Per diem rates will be calculated in accordance with
               federal guidelines Publication 1542, Per Diem Rates for Travel
               within the Continental United States. Should field employees be
               required for a duration in excess of 12 months a taxable
               allowance will be negotiated.

          .    Moving expenses per field employee for relocation from the job
               site.

3.   COSTS REIMBURSABLE AS A SCHEDULED EXPENSE ITEM

     The following items are internally produced and billed at the approximate
     cost per unit (square foot, copy, hour, etc.) to Lurgi PSI, Inc. including
     materials and machine time utilized:

     3.1  DRAWING REPRODUCTION COSTS

          3.1.1    Bond                     $ .17 per sq. ft.
          3.1.2    Vellum                   $1.00 per sq. ft.
          3.1.3    Mylar                    $1.75 per sq. ft.

     3.2  PHOTOCOPIES                       $ .10 per copy

     3.3  CD CREATION                       $10.00 each CD

     3.4  VIDEO CONFERENCING                $2.00 per minute ($120 per hour)

4.   COSTS REIMBURSABLE AS DIRECT EXPENSES PLUS A FEE

     The following items are expenses which are to be reimbursed at cost plus a
     fixed fee:

     4.1  Owner Requested Subcontracts

     4.2  Purchased Equipment

     4.3  Rental Equipment

5.   INVOICING

     Normal invoicing procedures call for manhours completed on the project and
     reimbursable expenses to be billed monthly. The invoice will list all
     manhour charges and reimbursable expenses against the project to date, both
     billed and current. Standard invoices will detail the charges to the
     project and will not contain copies of any receipts or documentation.
     Sample invoices are available upon request. Documentation for all billable
     items will be included with standard invoices for a fee of $2.00 per
     8 1/2 x 11 sheet.

6.   SCHEDULE REVISIONS

                                      -11-

<PAGE>

     The rate schedule is subject to yearly revisions during the first billing
     period containing the first day of September. These adjustments will
     reflect increased costs due to promotions, merit increases, etc. Any other
     changes in the Rate Schedule are subject to approval of the Owner.

7.   COSTS ASSOCIATED WITH INSURANCE

     Lurgi PSI, Inc. provides the following level of insurance as standard on
     all projects without any additional reimbursement under our Standard
     Agreement for Professional Services:

     7.1  Workman's Compensation Insurance as required by law.

     7.2  Comprehensive General Liability Insurance at limits of $500,000 per
          occurrence for bodily injury and property damage with a broad form
          endorsement for property damage, products, completed operations,
          premises, blanket contractual, independent construction and XCU.

     7.3  Comprehensive Automobile Liability Insurance covering all owned,
          non-owned, and hired vehicles at limits of $100,000 each person;
          $300,000 each accident for bodily injuries and $100,000 each accident
          for property damage.

     7.4  Umbrella Liability is provided to cover any legal liability that may
          exceed the underlying limits of insurance coverages. The aggregate
          limit of the Umbrella liability policy shall be $1 million.

     7.5  Professional liability insurance is provided through self-insurance by
          Lurgi PSI, Inc. for $100,000 or up to the full value of Lurgi PSI's
          fee for services to a maximum of $1,000,000, as a standard part of our
          Professional Services Agreement. Any additional Professional Liability
          Insurance requested by the Owner will be furnished as a direct
          reimbursable expense per paragraph 2.0 above.

     7.6  Project Professional Liability, Wrap-up Insurance, or any other
          additional insurance requested by Owner will be furnished as a direct
          reimbursable expense per paragraph 2.0 above.

8.   RATE SCHEDULE BY CLASSIFICATION

     Consolidated Rate Schedule, effective September 16, 2002:

     SENIOR PROJECT ENGINEER/SPECIALIST AND ABOVE                 $105
     PROJECT ENGINEER/SPECIALIST                                   $99
     PROJECT/AREA COORDINATOR                                      $88
     ESTIMATOR                                                     $82
     SENIOR ENGINEER/SPECIALIST                                    $78
     PROJECT SUPERINTENDENT                                        $78
     SENIOR DESIGNER                                               $76
     COST CONTROL                                                  $76
     SUPERINTENDENT                                                $76

                                      -12-

<PAGE>

         SAFETY COORDINATOR                                            $76
         QA/QC COORDINATOR                                             $76
         EQUIP/TOOLS SUPERINTENDENT                                    $76
         PURCHASING AGENT/EXPEDITOR                                    $68
         ENGINEER/SPECIALIST                                           $68
         STEEL DETAILING                                               $68
         DESIGNER                                                      $61
         CADD SPECIALIST                                               $53
         ADMINISTRATIVE COORDINATOR                                    $53
         ACCOUNTING                                                    $53
         SUPPORT                                                       $45

                                      -13-

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