BUFFALO RIDGE ENERGY, LLC SUBSCRIPTION AGREEMENT Limited Liability Company Membership Units $1,000 per Unit Minimum Investment of 10 Units ($10,000) 1 Unit Increments Thereafter ($1,000)

Exhibit 4.2

BUFFALO RIDGE ENERGY, LLC

SUBSCRIPTION AGREEMENT

Limited Liability Company Membership Units

$1,000 per Unit

Minimum Investment of 10 Units ($10,000)
1 Unit Increments Thereafter ($1,000)

The undersigned subscriber (“Subscriber”), desiring to become a member Buffalo Ridge Energy, LLC (“Buffalo Ridge”), a South Dakota limited liability company, with its principal place of business at 000 Xxxxxxxxx Xxxx, Xxxxx 000, Xxxxxxx, Xxxxx Xxxxxx 00000 hereby subscribes for the purchase of membership units of Buffalo Ridge, and agrees to pay the related purchase price, identified below.

A. SUBSCRIBER INFORMATION. Please print your individual or entity name and address. If we accept your subscription, the units will be titled in the name of the subscriber as it appears below. Joint subscribers should provide both names. Your name and address will be recorded exactly as printed below. Please provide your home, business and/or mobile telephone number. If desired, please also provide your e-mail address.

1.		Subscriber’s Printed Name
2.		Title, if applicable
3.		Subscriber’s Address      Street
		City, State, Zip Code
4.		E-mail Address
5.		Home Telephone Number
6.		Business Telephone Number
7.		Mobile Telephone Number
8.		Subscriber’s Social Security Number
9.		Joint Subscriber’s Social Security Number
10.		Taxpayer Identification No. (Business Entities)

B. NUMBER OF UNITS PURCHASED. You must purchase at least 10 units, and additional units may be purchased in increments of 1 unit up to a maximum purchase amount of 250 units, which maximum may be waived in the sole discretion of our board of managers. The minimum number of units to be sold is 45,000 and the maximum number of units to be sold in the offering is 75,000.

units

C. PURCHASE PRICE. Indicate the dollar amount of your investment (minimum investment is $10,000).

1. Total Purchase Price ($1,000 per unit multiplied by number of units)		=		2. 1st Installment (10% of Total Purchase Price)		+		3. 2nd Installment (90% of Total Purchase Price)
		=				+

D. GENERAL INSTRUCTIONS FOR SUBSCRIBERS:

You should read the Prospectus dated [DATE OF EFFECTIVENESS] (the “Prospectus”) in its entirety including the exhibits for a complete explanation of an investment in Buffalo Ridge.

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INSTRUCTIONS IF YOU ARE SUBSCRIBING PRIOR TO THE COMPANY’S RELEASE OF FUNDS FROM ESCROW: If you are subscribing prior to the Company’s release of funds from escrow, you must follow the instructions contained in paragraphs 1 through 5 below:

     1. Complete all information required in this Subscription Agreement, and date and sign the Subscription Agreement on page 6 and the Member Signature Page to our amended and restated operating agreement attached to this Subscription Agreement as Exhibit A.

     2. Immediately provide a personal (or business) check for the first installment of ten percent (10%) of your investment amount. The check should be made payable to “Home Federal Bank, escrow agent for Buffalo Ridge Energy, LLC.” You will determine this amount in box C.2 on page 1 of this Subscription Agreement.

     3. Execute the Promissory Note and Security Agreement on page 7 of this Subscription Agreement evidencing your commitment to pay the remaining ninety percent (90%) due for the units. The Promissory Note and Security Agreement is attached to this Subscription Agreement and grant Buffalo Ridge Energy, LLC a security interest in your units.

     4. Deliver the original executed documents referenced in paragraphs 1 and 3 of these instructions, together with a personal or business check as described in Paragraph 2 of these instructions to:

Buffalo Ridge Energy, LLC
000 Xxxxxxxxx Xxxx, Xxxxx 000
Xxxxxxx, XX 00000

     5. Within 20 days of written notice from Buffalo Ridge that your subscription has been accepted, you must remit an additional personal (or business) check for the second installment of ninety percent (90%) of your investment amount made payable to “Home Federal Bank, escrow agent for Buffalo Ridge Energy, LLC” in satisfaction of the Promissory Note and Security Agreement. You will determine this amount in box C.3 on page 1 of this Subscription Agreement. You must deliver this check to the same address set forth above in paragraph 4 within twenty (20) days of the date of Buffalo Ridge’s written notice. If you fail to pay the second installment pursuant to the Promissory Note and Security Agreement, Buffalo Ridge shall be entitled to retain your first installment and to seek other damages, as provided in the Promissory Note and Security Agreement. This means that if you are unable to pay the 90% balance of your investment amount within 20 days of our notice, you may have to forfeit the 10% cash deposit.

     Your funds will be placed in Buffalo Ridge’s escrow account at Home Federal Bank. The funds will be released to Buffalo Ridge or returned to you in accordance with the escrow arrangements described in the Prospectus. Buffalo Ridge may, in its sole discretion, reject or accept any part or all of your subscription. If Buffalo Ridge rejects your subscription, your Subscription Agreement and investment will be promptly returned to you, plus nominal interest, minus escrow fees. Buffalo Ridge may not consider the acceptance or rejection of your subscription until a future date near the end of this offering.

INSTRUCTIONS IF YOU ARE SUBSCRIBING AFTER THE COMPANY’S RELEASE OF FUNDS FROM ESCROW: If you are subscribing after the Company’s release of funds from escrow, you must follow the instructions contained in paragraphs 1 through 3 below:

     1. Complete all information required in this Subscription Agreement, and date and sign the Subscription Agreement on page 6 and the Member Signature Page to our amended and restated operating agreement attached to this Subscription Agreement as Exhibit A.

     2. Immediately provide your personal (or business) check for the entire amount of your investment (as determined in box C.1 on page 1) made payable to “Buffalo Ridge Energy, LLC.”

     3. Deliver the original executed documents referenced in paragraph 1 of these instructions, together with your personal or business check as described in paragraph 2 to:

Buffalo Ridge Energy, LLC
000 Xxxxxxxxx Xxxx, Xxxxx 000
Xxxxxxx, XX 00000

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     If you are subscribing after we have released funds from escrow and we accept your investment, your funds will be immediately at-risk as described in the Prospectus. Buffalo Ridge may, in its sole discretion, reject or accept any part or all of your subscription. If Buffalo Ridge rejects your subscription, your Subscription Agreement and investment will be returned to you promptly, plus nominal interest, minus escrow fees. Buffalo Ridge may not consider the acceptance or rejection of your subscription until a future date near the end of this offering.

     You may direct your questions to either of our governors listed below or to Buffalo Ridge at (000)-000-0000.

NAME		POSITION		PHONE NUMBER
Xxxx Xxx Xxxxxx		President and Manager		(000) 000-0000
Xxxxx Xxxxxxx		Treasurer/Secretary and Manager		(000) 000-0000
Xxxx Xxxxxxxxxx		Vice President and Manager		(000) 000-0000

E. Additional Subscriber Information. Subscriber, named above, certifies the following under penalties of perjury:

1. Form of Ownership. Check the appropriate box (one only) to indicate form of ownership. If the subscriber is a Custodian, Corporation, Partnership or Trust, please provide the additional information requested.

		o		Individual
		o		Joint Tenants with Right of Survivorship (Both signatures must appear on page 6.)
		o		Corporation, Limited Liability Company or Partnership (Corporate Resolutions, Amended and Restated Operating Agreement or Partnership Agreement must be enclosed.)
		o		Trust      Trustee’s Name:                                              Trust Date:
		o		Other: Provide detailed information in the space immediately below.

2. Subscriber’s Taxpayer Information. Check the appropriate box if you are a non-resident alien, a U.S. Citizen residing outside the United States, and/or subject to backup withholding. All individual subscribers should provide their Social Security Numbers. Trusts should provide the trust’s taxpayer identification number. Custodians should provide the minor’s Social Security Number. Other entities should provide the entity’s taxpayer identification number.

		o		Check box if you are a non-resident alien
		o		Check box if you are a U.S. citizen residing outside of the United States
		o		Check this box if you are subject to backup withholding

Subscriber’s Social Security No.

Joint Subscriber’s Social Security No.

Taxpayer Identification No.

3. Member Report Address. If you would like duplicate copies of member reports sent to an address that is different than the address identified in section A, please complete this section.

Address:

		4.		State of Residence.
				State of Principal Residence:
				State where driver’s license is issued:
				State where resident income taxes are filed:

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State(s) in which you have maintained your principal residence during the past three years:

a. b. c.

5. Suitability Standards. You cannot invest in Buffalo Ridge unless you meet one of the following suitability tests (a or b) set forth below. Please review the suitability tests and check the box next to the following suitability test that you meet. For husbands and wives purchasing jointly, the tests below will be applied on a joint basis.

	a.  o		I (We) have annual income from whatever source of at least $45,000 and a net worth of at least $45,000, exclusive of home, furnishings and automobiles; or
	b.  o		I (We) have a net worth of at least $100,000, exclusive of home, furnishings and automobiles; or
	c.  o		I (We) have a net worth of $150,000, exclusive of home, home furnishings, and automobiles.

6. Agricultural Producer. Please indicate below whether the subscribing person or entity meets the following definition of an Agricultural Producer: Persons or entities, including farmers, ranchers, loggers, agricultural harvesters and fishermen, that engage in the production or harvesting of an agricultural product. Producers may or may not own the land or other production resources, but must have majority ownership interest in the agricultural product to which value is added as a result of the project. Examples of agricultural producers include but are not limited to: a cattle or hog feeder that has a majority interest in the livestock that is fed, slaughtered and sold as beef or pork products or corn grower that has a majority interest in the corn produced that is then converted into corn meal.

	a.  o		I (we) qualify as an Agricultural Producer based on the above definition.
	b.  o		I (we) do not qualify as an Agricultural Producer based on the above definition.

7. Subscriber’s Representations and Warranties. You must read and certify your representations and warranties by placing your initials where indicated and by signing and dating this Subscription Agreement. Joint subscribers are also required to initial and sign as indicated.

(Initial here) (Joint initials) By signing below the subscriber represents and warrants to Buffalo Ridge that he, she or it:

a. has received a copy of Buffalo Ridge’s Prospectus dated [DATE OF EFFECTIVENESS] and the exhibits thereto or has received notice that this sale has been made pursuant to a registration statement in which a final prospectus would have been required to have been delivered in the absence of Rule 172;

b. has been informed that the units of Buffalo Ridge are offered and sold in reliance upon a federal securities registration; state registrations in Florida, Georgia, Illinois, Iowa, Kansas, Louisiana, Minnesota, Missouri, and South Dakota; and exemptions from securities registrations in various other states, and understands that the units to be issued pursuant to this subscription agreement can only be sold to a person meeting requirements of suitability;

c. has been informed that the securities purchased pursuant to this Subscription Agreement have not been registered under the securities laws of any state other than Florida, Georgia, Illinois, Iowa, Kansas, Louisiana, Minnesota, Missouri, and South Dakota and that Buffalo Ridge is relying in part upon the representations of the undersigned Subscriber contained herein;

d. has been informed that the securities subscribed for have not been approved or disapproved by the SEC, or the Florida, Georgia, Illinois, Iowa, Kansas, Louisiana, Minnesota, Missouri, and South Dakota Securities Departments or any other regulatory authority, nor has any regulatory authority passed upon the accuracy or adequacy of the Prospectus;

e. intends to acquire the units for his/her/its own account without a view to public distribution or resale and that he/she/it has no contract, undertaking, agreement or arrangement to sell or otherwise transfer or dispose of any units or any portion thereof to any other person;

f. has been informed that there is no present market for Buffalo Ridge’s membership units, that the membership units will not trade on an exchange or automatic quotation system,

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that no such market is expected to develop in the future and that there are significant restrictions on the transferability of the membership units;

g. has been encouraged to seek the advice of his legal counsel and accountants or other financial advisers with respect to investor-specific tax and/or other considerations relating to the purchase and ownership of units;

h. has received a copy of the Buffalo Ridge amended and restated operating agreement, dated January 23, 2007, and understands that upon closing the escrow by Buffalo Ridge, the subscriber and the membership units will be bound by the provisions of the amended and restated operating agreement which contains, among other things, provisions that restrict the transfer of membership units;

i. has been informed that the units are subject to substantial restrictions on transfer under certain tax and securities laws along with restrictions in the Buffalo Ridge amended and restated operating agreement, and agrees that if the membership units or any part thereof are sold or distributed in the future, the subscriber shall sell or distribute them pursuant to the terms of the amended and restated operating agreement, and the requirements of the Securities Act of 1933, as amended, and applicable tax and securities laws;

j. meets the suitability test marked in Item E.5 above and is capable of bearing the economic risk of this investment, including the possible total loss of the investment;

k. has been informed that Buffalo Ridge will place a restrictive legend on any certificate representing any unit containing substantially the following language as the same may be amended by the Managers of Buffalo Ridge in their sole discretion:

THE TRANSFERABILITY OF THE COMPANY UNITS REPRESENTED BY THIS DOCUMENT 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, THE TERMS AND CONDITIONS SET FORTH IN THE AMENDED AND RESTATED OPERATING AGREEMENT AND AGREED TO BY EACH MEMBER.

THE UNITS REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD, OFFERED FOR SALE, OR TRANSFERRED IN ABSENCE OF AN EFFECTIVE REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND UNDER APPLICABLE STATE SECURITIES LAWS.

l. has been informed that, to enforce the above legend, Buffalo Ridge may place a stop transfer order with its registrar and stock transfer agent (if any) covering all certificates representing any of the membership units;

m. may not transfer or assign this Subscription Agreement, or any of the subscriber’s interest herein without the prior written consent of Buffalo Ridge;

n. has written his, her, or its correct taxpayer identification number under Item E.2 on this Subscription Agreement;

o. is not subject to back up withholding either because he, she or it has not been notified by the Internal Revenue Service (“IRS”) that he, she or it is subject to backup withholding as a result of a failure to report all interest or dividends, or the IRS has notified him, her or it that he is no longer subject to backup withholding (Note this clause (p) should be crossed out if the backup withholding box in Item E.2 is checked);

p. has been informed that execution of the attached Promissory Note and Security Agreement will allow Buffalo Ridge or its assigns to pursue the obligor for payment of the amount due thereon by any legal means, including, but not limited to, acquisition of a judgment against the obligor in the event that the subscriber defaults on that Promissory Note and Security Agreement; and

q. acknowledges that Buffalo Ridge may retain possession of certificates representing subscriber’s units to perfect its security interest in those units.

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Signature of Subscriber/Joint Subscriber:

Date:
Individuals:						Entities:
Name of Individual Subscriber (Please Print)						Name of Entity (Please Print)
Signature of Individual						Print Name and Title of Officer
Name of Joint Individual Subscriber (Please Print)						Signature of Officer
Signature of Joint Individual Subscriber

ACCEPTANCE OF SUBSCRIPTION BY BUFFALO RIDGE ENERGY, LLC:

Buffalo Ridge Energy, LLC hereby accepts Subscriber’s subscription for                      units.

Dated this                      day of                                         , 200                     .

BUFFALO RIDGE ENERGY, LLC

By:

Its:

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PROMISSORY NOTE AND SECURITY AGREEMENT

     Date of Subscription Agreement:                                         , 200___.

$1,000 per Unit

Minimum Investment of 10 Units ($10,000); Units Sold in 1 Unit Increments Thereafter ($1,000 each)

		Number of Units Subscribed
		Total Purchase Price ($1,000 per unit multiplied by number of units subscribed)
(                      )		Less Initial Payment (10% of Principal Amount)
		Principal Balance

FOR VALUE RECEIVED, the undersigned hereby promises to pay to the order of Buffalo Ridge Energy, LLC, a South Dakota limited liability company (“Buffalo Ridge”), at its principal office located at 000 Xxxxxxxxx Xxxx, Xxxxx 000, Xxxxxxx, Xxxxx Xxxxxx 00000, or at such other place as required by Buffalo Ridge, the Principal Balance set forth above in one lump sum to be paid without interest within 20 days following the call of the Buffalo Ridge Board of Managers, as described in the Subscription Agreement. In the event the undersigned fails to timely make any payment owed, the entire balance of any amounts due under this full recourse Promissory Note and Security Agreement shall be immediately due and payable in full with interest at the rate of 12% per annum from the due date and any amounts previously paid in relation to the obligation evidenced by this Promissory Note and Security Agreement may be forfeited at the discretion of Buffalo Ridge.

The undersigned agrees to pay to Buffalo Ridge on demand, all costs and expenses incurred to collect any indebtedness evidenced by this Promissory Note and Security Agreement, including, without limitation, reasonable attorneys’ fees. This Promissory Note and Security Agreement may not be modified orally and shall in all respects be governed by, construed, and enforced in accordance with the laws of the State of South Dakota.

The provisions of this Promissory Note and Security Agreement shall inure to the benefit of Buffalo Ridge and its successors and assigns, which expressly reserves the right to pursue the undersigned for payment of the amount due thereon by any legal means in the event that the undersigned defaults on obligations provided in this Promissory Note and Security Agreement.

The undersigned waives presentment, demand for payment, notice of dishonor, notice of protest, and all other notices or demands in connection with the delivery, acceptance, performance or default of this Promissory Note and Security Agreement.

The undersigned grants to Buffalo Ridge, and its successors and assigns (“Secured Party”), a purchase money security interest in all of the undersigned’s membership units of Buffalo Ridge now owned or hereafter acquired. This security interest is granted as non-exclusive collateral to secure payment and performance on the obligation owed Secured Party from the undersigned evidenced by this Promissory Note and Security Agreement. The undersigned further authorizes Secured Party to retain possession of certificates representing such membership units and to take any other actions necessary to perfect the security interest granted herein.

Dated:                      , 200___.

OBLIGOR/DEBTOR:						JOINT OBLIGOR/DEBTOR:
Printed or Typed Name of Obligor						Printed or Typed Name of Joint Obligor
By:						By:
		(Signature)						(Signature)
Officer Title if Obligor is an Entity
Address of Obligor

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Exhibit A

MEMBER SIGNATURE PAGE

ADDENDUM TO THE
AMENDED AND RESTATED OPERATING AGREEMENT
OF BUFFALO RIDGE ENERGY, LLC

     The undersigned does hereby warrant, represent, covenant and agree that: (i) the undersigned, as a condition to becoming a Member in Buffalo Ridge Energy, LLC, has received a copy of the amended and restated operating agreement dated January 23, 2007, and, if applicable, all amendments and modifications thereto; (ii) the undersigned shall be subject to and comply with all terms and conditions of such amended and restated operating agreement in all respects, as if the undersigned had executed said amended and restated operating agreement on the original date thereof; and (iii) the undersigned is and shall be bound by all of the provisions of said amended and restated operating agreement from and after the date of execution of this Addendum.

Individuals:				Entities:
Name of Individual Member (Please Print)				Name of Entity (Please Print)
Signature of Individual				Print Name and Title of Officer
Name of Joint Individual Member (Please Print)				Signature of Officer
Signature of Joint Individual Member

Agreed to and accepted on behalf of the

Company and its Members:

BUFFALO RIDGE ENERGY, LLC

By:

Its:

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