Document:

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                                                                   EXHIBIT 10.3a

                     AMENDMENT TO GAS PROCESSING AGREEMENT
                            Dated November 19, 1999

April 27, 2000

Upper Cumberland Natural Gas Company, Inc. and Little Creek Farms, Inc. whose
address is 4973 Lee Road, Smyrna, Tennessee 37167, hereinafter referred to as
"UCNGC", and Westfield Oil & Gas, Inc. whose address is 21123 Hardy Road,
Houston, Texas 77073, hereinafter referred to as "Westfield" entered into a GAS
PROCESSING AGREEMENT DATED NOVEMBER 19, 1999, attached hereto and made part of
this agreement. Due to the extraordinary and unexpected expenses associated with
the various labor, parts, service, construction, and related costs to
"Westfield" to install the Liquids plant, and its related components, including
the replacement of the Compressors and rebuild and modify the "UCNGC" gathering
system, to meet system requirements. It is agreed and understood that "UCNGC"
hereby agrees to the following terms and conditions:

To pay 50% of the Gross revenues from the sale of UCNGC gas to "Westfield" until
"Westfield" has recovered its expenses totaling $175,000.00 plus a service fee
of 25% for a total of $218,750.00 (two hundred eighteen thousand seven hundred
and fifty dollars). In addition to the gas revenue, "Westfield" will receive
100% of the proceeds from the sale of the extracted liquids until such time the
$218,750.00.

It is further agreed and understood that Upper Cumberland Natural Gas and
Westfield Oil & Gas will select a mutually acceptable Bank in Tennessee and
appoint them as the Trust for the disbursement of any and all funds generated
from the sale of the aforementioned natural gas. The City of Livingston
Tennessee, and or any other purchaser of said natural gas will be instructed by
UCNGC & Westfield Oil & Gas to pay all invoices to the TRUST. The Trust will
have written disbursement instructions agreed to by UCNGC and Westfield, which
shall dictate the exact disbursements to the parties. This disbursement cannot
be changed by either party without specific instructions, modified and
authorized by both of the parties, submitted to the Trust in writing and
executed in the presence of a Notary Public and filed with the Trust Bank.

                           Dated this ______day of _____, 2000

                           UPPER CUMBERLAND NATURAL GAS COMPANY, INC.

                           -------------------------------------
                           BY:      Darrell Maynord, President

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LITTLCREEK FARMS, INC
AMMENDMENT TO CONTACT (Page 2)

-----------------------------------
BY:      Darrell Maynord, President

ACKNOWLEDGEMENT
STATE OF TENNESSEE
COUNTY OF _______________________
Before me the undersigned authority, on this day personally appeared Darrell
Maynord, known to me to be the person whose name is subscribed to the foregoing
instrument and acknowledged to me that he executed for the purposes and
consideration therein expressed.
Given Under my hand and seal of office this __________ day of May, 2000

            Seal                   _________________________
                                   Notary

My commission expires ______________________

                  WESTFIELD OIL & GAS, INC.

                  ------------------------------
                  BY:      Alan Hansen, Agent<PAGE>

                                                                    EXHIBIT 10.4

                          SALES AND PURCHASE AGREEMENT

State of Texas
County of Harris

Ernie F. Gouge, DBA "Westfield Oil and Gas, Inc." whose address is 21123 Hardy
Road, Houston, Texas, 77073, entered into a Gas Processing Agreement with Upper
Cumberland Natural Gas Company, Inc. on November 19, 1999, attached hereto and
made part of this agreement. A subsequent Agreement titled "Amendment to Gas
Processing Agreement" was entered into on April 27, 2000, attached hereto and
made part of this Agreement.

This letter conveys 100% of the interest, participation, responsibilities,
obligations and all other matters, including, but not limited to the terms and
conditions addressed in the "Gas Processing Agreement" dated November 19, 1999,
and the "Amendment to Gas Processing Agreement" dated April 27, 2000, from Ernie
F. Gouge, DBA "Westfield Oil and Gas, Inc." to Alan Hansen whose address is 1605
15th Street, Huntsville, Texas 77340, hereinafter referred to as "Hansen".

This transfer of interest shall be provided in consideration of a payment of
$150,000.00 (one hundred and fifty thousand dollars). It is agreed and
understood by the parties, that Ernie F. Gouge, DBA "Westfield Oil and Gas,
Inc.", will deliver, convey, and transfer said interest free and clear of any
debt related to the installation and start up costs, or operations of said
plant, and there will be no outstanding invoices at the time of executing this
agreement.

A down payment of $40,000.00 dated May 20, 2000, is hereby paid to Ernie F.
Gouge, DBA "Westfield Oil and Gas, Inc." and the acceptance of this promissory
note in the amount of $117,500.00 due and payable on June 6, 2000, attached
hereto, does hereby transfer said interest to Alan L. Hansen as of this date. In
the event "Hansen" fails to pay the balance of said promissory note, all
interests shall revert to Ernie F. Gouge, DBA "Westfield Oil and Gas, Inc."

At a review of all paid and unpaid invoices will presented by Ernie F. Gouge,
EBA "Westfield Oil and Gas. Inc.," and any unpaid invoices shall be paid by
Ernie F. Gouge, DBA "Westfield Oil and Gas, Inc." and evidence of payment
provided to "Hansen" on or before the "DUE DATE" of the promissory note JUNE 6,
2000. In the event invoices are presented for payment after the JUNE 6, 2000,
date for any of the construction, installation, or other services, materials, or
labor which is charged to Ernie F. Gouge DBA "Westfield Oil and Gas, Inc.," said
invoices shall be reviewed by the parties to determine liability.

Inasmuch as Ernie F. Gouge, DBA "Westfield Oil and Gas, Inc." contracted with
The Hanover Company, and entered into equipment rentals on the above mentioned
NGL plant and related equipment, located in Livingston, Tennessee, is agreed and
understood these rental/lease contracts will be assigned to Alan Hansen or his
assignees. The contracts include the following equipment and the following
obligations (see Attached EXHIBIT "C", attached hereto and made part of this
Agreement.

<PAGE>

In the event The Hanover Company refuses to permit Alan Hansen to assume the
rentals/lease contracts with The Hansen Company, Ernie F. Gouge, DBA "Westfield
Oil and Gas, Inc." hereby agrees to remain as the responsible party regarding
these rental/leases and will subordinate the rental/lease responsibility for
Alan Hansen.

In this event, Alan Hansen will pay these rentals directly to The Hanover
Company and will provide evidence of payment to Ernie F. Gouge, DBA "Westfield
Oil and Gas, Inc." for each payment made.

This agreement is entered into this 20th day of May 2000.

Agreed and Understood

-----------------------------------------         -----------------------------
         Ernie F. Gouge                             Westfield Oil and Gas, Inc.
                                                    Ernie F. Gouge

-----------------------------------------
         Alan Hansen

                                 ACKNOWLEDGEMENT

STATE OF TEXAS
COUNTY OF HARRIS

Before me the undersigned authority, on this day personally appeared the parties
Alan L. Hansen, and Ernie F. Gouge known to me to be the persons whose names are
subscribed to the foregoing instrument, and acknowledged to me that he executed
for the purposes and consideration therein expressed.
Given under my hand and seal of the office this 24th day of May, 2000.

-----------------------------------------            Seal
         Signature<PAGE>
                                                                    EXHIBIT 10.5
                                LETTER OF NOTICE
                               CHANGE OFOWNERSHIP

April 27, 2000

Mr. Darrell Maynord

President Upper Cumberland Natural Gas Company, Inc.
and Little Creek Farms, Inc.
4973 Lee Road
Smyrna, Tennessee 37167

          Mr. Maynord, This letter will officially notice you that Alan Hansen,
whose address is 1605 15th Street, Huntsville, Texas 77430, has acquired all of
the interest in the Livingston, Tennessee Liquids Plant formally owned by
Westfield Oil and Gas, Inc. This letter will serve as your acceptance and will
acknowledge your full approval of this transaction. Further, you hereby agree
that all of the terms and agreements which exist or existed between Upper
Cumberland Natural Gas and Westfield Oil and Gas, Inc. are hereby transferred
and conveyed to Alan Hansen, or his agent, nominees or assigns, including but
not limited to, all obligations, responsibilities, rewards, conditions, terms
and shall replace Westfield Oil and Gas, Inc. in all matters concerning the
existing Contracts and Agreements which exist or existed between Upper
Cumberland Natural Gas, Inc. and Westfield Oil and Gas, Inc. This letter
specifically addresses the Gas {Processing Agreement dated November 19, 1999,
including paragraph 15.5 in that agreement, and the Amendment to that Contract
dated April 27, 2000, both agreements and contract, between Upper Cumberland,
Natural Gas Company, Inc. and Westfield Oil and Gas, Inc. Copies attached hereto
and made part of this agreement.

Accepted this _____________ day of May, 2000

----------------------------------------------
UPPER CUMBERLAND NATURAL GAS COMPANY, INC.
Darrell Maynord, President

----------------------------------------------
LITTLE CREEK FARMS, INC.
Darrell Maynord, President

ACKNOWLEDGEMENT
STATE OF TENNESSEE
COUNTY OF ___________________
Before me the undersigned authority, on this day personally appeared Darrell
Maynord, known to be the person whose name is subscribed to the foregoing
instrument and acknowledged to me that he executed for the purposes and
consideration therein expressed.
Given Under my hand and seal of office this __________ day of May, 2000

                                      Seal

                                       My Commission Expires
                                            November 22, 2000

My commission expires _____________________     --------------------------------
                                                Notary

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