Document:

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                                                                   EXHIBIT 10.14

CONFIDENTIAL TREATMENT REQUESTED

                               AMENDMENT NO. 1 TO
                              RESTATED AND AMENDED
                              COAL SUPPLY AGREEMENT

         THIS AMENDMENT, made and entered into this 10th day of May, 1996, but
effective as of April 1, 1996, by and between MAPCO Coal Inc., Webster County
Coal Corporation, White County Coal Corporation (collectively referred to as
"MAPCO"), and Seminole Electric Cooperative, Inc. ("Seminole"):
                                   WITNESSETH:
         WHEREAS, on January 17, 1979, the parties hereto entered into a written
Coal Supply Agreement, which was subsequently restated and amended effective
February 1, 1986 (hereinafter the "Restated Agreement"); and

         WHEREAS, the parties hereto wish to amend certain provisions of the
Restated Agreement, to resolve certain disputes as set forth in the attached
Appendix A.,

         WHEREAS, under the Restated Agreement MAPCO Coal Inc. serves as agent
for administration of the Restated Agreement but is not a signatory to the
Restated Agreement; MAPCO Coal Inc. is participating as a signatory to this
Amendment No. 1 only as to the obligations and responsibilities set forth herein
as they relate to MAPCO

-----------------
******denotes confidential information with respect to which a separate
confidential treatment request has been filed with the Securities and Exchange
Commission. Please note that Exhibits A and B have been redacted pursuant to the
confidential treatment request.

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Coal Inc.'s contract with CSXT Transportation for rail delivery of coal to Mt.
Vernon Coal Transfer Company; and to that end the term "MAPCO" as used herein is
to be construed as including MAPCO Coal Inc. only as to obligations and
responsibilities set forth herein as they relate to MAPCO Coal Inc.'s contract
with CSXT Transportation;

         NOW THEREFORE, in accordance with the agreements reached between the
parties, the Restated Agreement shall be amended as set forth below. Other than
as provided below, all terms and provisions of the Restated Agreement continue
to remain in full force and effect.

                              ARTICLE II: QUANTITY

         A.       Quantity Premium

         For the remaining term of the Restated Agreement as amended, $******
per ton shall be ****** to the Base Price or Current Price, whichever is
applicable to the tons shipped, for each ton scheduled for shipment and
purchased by Seminole in excess of ****** tons per year.

         B.       Pattiki Substitute Coal

                  (1) From ****** through ******, or until such time as MAPCO
elects to shut down the Pattiki Mine under provisions of the Restated Agreement,
whichever occurs first, MAPCO shall ship, in addition to the tons provided by
Section 2.2 of the Restated Agreement, a minimum of ****** additional tons per
Contract Year, and at its sole option may ship up to a maximum of ******
additional tons per Contract Year, of Pattiki Mine coal as a substitute for
Dotiki Mine contract tonnage which would otherwise

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have been shipped (hereinafter "Pattiki Substitute Coal"). The Pattiki
Substitute Coal shall, on a ton-for-ton basis, reduce the Dotiki annual contract
tonnage obligation under Section 2.1 and increase the Pattiki annual contract
tonnage obligation under Section 2.2. The provisions relating to Pattiki
Substitute Coal do not alter the provisions of Section 3.4 relating to
substitute coal from other sources and Seminole's acceptance of Pattiki
Substitute Coal as a provision of this Amendment No. 1 does not establish a
precedent relating to the acceptability of substitute coal under the Restated
Agreement.

                (2) In Contract Year 1996, these provisions regarding Pattiki
Substitute Coal shall be applied on a pro rata basis for the period April
through December (i.e., a minimum of ****** tons, and a maximum of ****** tons,
of Pattiki Substitute Coal shall be shipped).

                (3) No more than ****** tons of Pattiki Substitute Coal shall
be delivered in any one month, unless otherwise mutually agreed. The monthly
delivery rate under Section 4.4 of the Restated Agreement shall be adjusted to
reflect the monthly tonnage of Pattiki Substitute Coal. MAPCO will use
reasonable efforts to spread the shipment of Pattiki Substitute Coal over at
least eight months of each Calendar Year and minimize month to month variations
in tonnage volume shipped. By November 1st of each year, MAPCO shall provide
Seminole with an estimate of the next year's annual Pattiki Substitute Coal
tonnage and estimated monthly shipments. One month prior to the start of each
calendar quarter, MAPCO shall provide Seminole with the proposed scheduled
monthly shipments. For the Contract Year 1996, MAPCO shall provide Seminole with
its initial proposed monthly shipment schedule by May 1, 1996 (which

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may include amounts already shipped in April), and shall thereafter ship the
Pattiki Substitute Coal in accordance with the proposed 1996 schedule, subject
to adjustments one month prior to each calendar quarter thereafter, and, subject
to the monthly barge loading schedule issued by Seminole in accordance with
provisions of the Restated Agreement.

                              ARTICLE IV: DELIVERY

         C.       Alternate Barge Loading Points

                  (1) For all coal shipped via barge, the point of sale,
transfer of title, and transfer of risk of loss shall be F.O.B. barge at Mt.
Vernon, Indiana, at mile post 828 on the Ohio River, or alternate barge loading
points MAPCO may deliver coal to at loading points upstream or downstream of
mile post 828 ("Alternate Barge Loading Points". MAPCO's use of Alternate Barge
Loading Points shall be subject to Seminole's approval based on operational
scheduling concerns, which approval shall not be unreasonably withheld. Any such
Alternate Barge Loading Point must be capable of handling super jumbo barges
(260' x 52-1/2'), and must be accessible to Seminole's tow boats. A minimum
placement of two (2) barges is required at any Alternate Barge Loading Point.
MAPCO's right under this Amendment to deliver coal to Alternate Barge Loading
Points upstream or downstream of mile post 828 shall expire ******, unless
otherwise provided by subsequent agreement of the parties.

                  (2) If MAPCO loads coal at an Alternate Barge Loading Point
upstream of mile post 828 on the Ohio River, MAPCO shall reimburse Seminole for
any increase

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in Seminole's barge transportation costs resulting from MAPCO's use of an
Alternate Barge Loading Point. If MAPCO loads coal at an Alternate Barge Loading
Point downstream from mile post 828 on the Ohio River, Seminole will share
equally (50/50) with MAPCO any incremental net barge transportation cost savings
that may result from the use of the Alternate Barge Loading Point. In the event
a downstream Alternate Barge Loading Point selected by MAPCO results in any
increased barge transportation cost to Seminole, MAPCO shall reimburse Seminole
for such increased barge transportation costs.

                  (3) Any adjustments to transportation costs due to MAPCO's use
of Alternate Barge Loading Points upstream or downstream from mile post 828
shall take into account the barge rate differential, changes in barge related
taxes, fees, assessments, cost of fleeting, shifting, or other Seminole barging
costs which differ from Seminole's barge transportation costs from MVCTC.

                  (4) Unless otherwise directed by Seminole, MAPCO shall be
required to ship an annual total of at least ****** tons of coal via CSXT from
the Dotiki and Pattiki mines.

         D.       Shipments of Third-Party Coal

         Seminole may ship third-party produced coal under MAPCO's CSXT
transportation contract for loading through MVCTC, provided MAPCO determines, in
its sole discretion, that such shipments (1) do not interfere with MAPCO's
shipping schedule to Seminole, and (2) comply with the provisions of the MVCTC
Agreement and MAPCO's CSXT Transportation Contract.

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         E.       CSXT Shortfall Penalties

         Seminole and MAPCO recognize that each has independently negotiated
transportation contracts with CSX Transportation (CSXT), separate from and not
part of any agreement between MAPCO and Seminole, that may impose shortfall
penalties should shipments of coal from CSXT rail origins fall below certain
levels. Seminole shall be solely responsible for payment of tonnage shortfall
liquidated damages under its CSXT contract as the result of Seminole electing to
ship less than its required annual minimum tonnage under its CSXT Contract via
CSXT from CSXT rail origins. MAPCO shall be solely responsible for payment of
tonnage shortfall liquidated damages under its CSXT contract as the result of
MAPCO electing to ship less than its required annual minimum tonnage under its
CSXT contract via CSXT from CSXT rail origins. Seminole and MAPCO agree to
cooperate and assist each other in avoiding the application of any shortfall
penalties to either party.

                               ARTICLES V AND VI:

                        PATTIKI SUBSTITUTE COAL PRICING

         F. In addition to the Base Prices established under Articles V and VI
of the Restated Agreement for Dotiki and Pattiki Mine coal, as adjusted in
accordance with the applicable provisions of the Restated Agreement, there shall
be a price established for Pattiki Substitute Coal. The price per ton for the
Pattiki Substitute Coal shall be a price per ton F. 0. B. Pattiki mine which is
$****** per ton ****** the price which will yield a delivered cost to the
Seminole Plant in cents per million BTU equal to the then current delivered cost
in cents per million BTU for Dotiki contract coal (hereinafter the "Pattiki

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Substitute Coal Price"). The delivered costs to the Seminole Plant in cents per
million BTU for Dotiki contract coal shall be established initially as of April
1, 1996, based on the Dotiki Current Price and transportation costs from Dotiki
as reduced per Paragraph H to the Seminole Plant as of that date. The Pattiki
Substitute Coal Price shall thereafter be adjusted at the same time any
adjustments are made in the Dotiki Current Price and/or transportation costs
from both Dotiki and Pattiki as reduced per Paragraph H to the Seminole Plant.
Appendix B sets forth the determination of the initial Pattiki Substitute Coal
Price effective April 1, 1996, and includes illustrative estimates of subsequent
quarterly price determinations through January 1, 1997.

         G. MAPCO shall pay Seminole a penalty of $****** for each ton by which
deliveries of Pattiki Substitute Coal fall short of the minimum of ****** tons
per contract year, limited to a maximum annual deficit penalty of $******. For
Contract Year 1996, the penalty of $****** per ton shall be calculated on a pro
rata basis for the nine months in 1996 covered by this Amendment, i.e., the
minimum deliveries will be ****** tons and the maximum penalty will be $******.

                                ARTICLES V, VI:
                             TRANSPORTATION PRICING

         H. MAPCO will ****** the rail freight rate invoiced to Seminole under
Section 4.4 and 11. 1 of the Restated Agreement for rail transportation of
Dotiki coal to the Mt. Vernon Coal Transfer Company ("MVCTC") by ****** per ton.
The rail rate from Dotiki to MVCTC is to be ****** from $****** per ton to
$****** per ton effective April 1, 1996 and adjusted quarterly thereafter by
****** percent (******%) of

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the change in the RCAF index unadjusted for productivity, provided that in no
event shall the adjusted rail rate fall below the base level of $****** per ton
unless modified by future CSXT Agreement(s). The reduced CSXT rail rate as
described above shall apply to all Dotiki shipments to MVCTC through ******. Any
further CSXT rail freight rate reductions from Dotiki through ****** which MAPCO
negotiates in the future with CSXT shall be distributed as follows: (a) MAPCO
shall be entitled to keep the first ****** per ton and (b) MAPCO and Seminole
shall share on a ****** basis all further reductions in excess of the first
****** per ton.

         For coal which Seminole schedules to ship via barge, if MAPCO elects to
ship Dotiki or Pattiki coal by truck or rail to MVCTC or to Alternate Barge
Loading Points under Paragraph C of this Amendment, the F.O.B. Barge Delivered
Price (defined as the Base Price or the Current Price, whichever is currently
applicable, plus all transportation and loading costs through placement of the
coal in barges) for such shipments shall be equal to the F.O.B. Barge Delivered
Price as if the coal was shipped under MAPCO's CSXT railroad contract to MVCTC,
and loaded into barges by MVCTC.

                           ARTICLE VIII: PRICE REVIEW

         I.       January 1. 1997 Price Review

         The October 1, 1996 Current Price for both Dotiki coal and Pattiki coal
will be ****** by ******%, effective January 1, 1997, to arrive at new Base
Prices for each mine under Article VIII. This shall be the sole price adjustment
made during the January 1, 1997 price review and other price review adjustments
shall be made in accordance with the provisions of Article VIII of the Restated
Agreement. The Current Price as ******

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by ******% shall be used to establish new Base Prices for each Mine under
Articles V and VI and new Base Price cost components under Section 8.6.

                                   ARTICLE IX:

            COAL SPECIFICATIONS, SAMPLING, AND BTU VALUE ADJUSTMENTS,

         J.       Weighing and Sampling

         The terms of this Paragraph J shall remain in effect through ******.
The parties agree to undertake good faith negotiations regarding an extension of
this Paragraph J beyond ******.

         (1) Sections 2.5, 9.4, and 9.5 of the Restated Agreement are amended to
provide for the following procedures for weighing, sampling and analysis of
coal. Except as set forth in the following paragraph, each shipment (regardless
of delivery method) shall be weighed on certified belt scales and sampled by
MAPCO in accordance with ASTM standards and procedures for continuous automatic
sampling and analyzed by an independent laboratory in accordance with ASTM
standards and procedures, with both sampling and weighing occurring at the same
location. The laboratory shall be selected by mutual agreement of Seminole and
MAPCO. ****** percent (******%) of all coal shipped may be placed into ground
storage, provided that during the process of reclaiming the coal from ground
storage for shipment the coal is weighed by certified belt scale and sampled in
accordance with ASTM standards and procedures for continuous automatic sampling
at the point of weighing, before loading into barges for barge method of
transportation or before loading into railcars for rail direct method of
transportation. Coal from Dotiki, Pattiki, or other sources will not be
co-mingled in ground storage.

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         (2) MAPCO has the option to utilize the following alternate procedure
for up to ****** percent (******%) of the annual contract tonnage if weighing
and/or sampling in accordance with the preceding subparagraph (1) is not
available: The barge weight shall be obtained by taking draft measurements of
the barge, and the sample shall be obtained from sampling in the barge. Barge
draft weights and sampling shall be conducted by an independent contractor, who
shall use ASTM standards and procedures, or other standards and procedures which
are mutually acceptable to the parties. The contractor shall be selected by
mutual agreement of the parties.

         (3) As used herein, the term "certified belt scale" is synonymous with
certified truck scale and certified batch weight scale. If certified belt scales
are not available, then railcar weigh-in-motion scales or other weighing methods
may be used on a case by case basis, if approved by Seminole. All costs
associated with weighing, sampling, and analysis shall be for MAPCO's account.

         (4) In lieu of the sampling shipment analysis reporting requirements of
Section 9.5 of the Restated Agreement, and for the purposes of Section 10.2, and
for all other purposes of the Restated Agreement as amended, all coal shipped
shall be analyzed to produce a "Per Shipment Quality Determination" for each
mine as follows. For coal loaded into barges from ground storage or under the
provisions of Subparagraph J(2) of this Amendment, the Per Shipment Quality
Determination for each mine shall be the weighted average of each barge analysis
for all barges fully loaded with that mine's coal during a day with the weighted
average being determined from the weight of each barge. For coal loaded directly
into a barge from a unit train which has been weighed and sampled at the Mine,
the Per Shipment Quality Determination shall be the quality analysis

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determined for such unit train. For the purposes of Section 10.3 and any quality
premium/penalty determination under Section 9.8 of the Restated Agreement or
under this Amendment, the "weighted average analysis of each month's shipment"
as set forth in Section 9.5 shall be the weighted average of all Per Shipment
Quality Determinations as described above. MAPCO shall provide Seminole a report
of the Per Shipment Quality Determination as provided in Subparagraph (5) below.

         (5) For each train shipment from a mine directly to a barge, MAPCO
shall use its best efforts to assure that within two days of shipment Seminole
receives the results of the Per Shipment Quality Determinations described in
Subparagraph J(4), which results shall contain the analyses of the following
quality specifications: BTU/lb, percent moisture, percent ash, and percent
sulfur (on an as-received and dry basis). As soon as possible thereafter, MAPCO
will provide Seminole with percent chlorine, ash fusion (fluid temperature
reducing), and Hardgrove grindability index results for each Per Shipment
Quality Determination. For coal placed in ground storage or shipped under the
provisions of Subparagraph J(2), MAPCO shall use its best efforts to provide
Seminole with the Per Shipment Quality Determination, as set forth in
Subparagraph J(4) and individual barge quality analysis result, for the above
quality specifications within two days but no later than four days after
shipment. Within ten working days following the end of each month, MAPCO shall
provide Seminole with the weighted average analysis of each month's shipment, as
described in Section 9.5 of the Restated Agreement and Subparagraph J(4) above,
for the above quality specifications, and a monthly composite

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sample analysis of iron in ash (as percent ferric oxide) and sodium in ash (as
percent Na2O) for each mine.

         K. Quality Enforcement

Seminole affirms that a failure to meet the quality specifications set forth in
Article IX, Sections 9.1 and 9.2 shall not be construed as a basis for Seminole
to terminate or attempt to terminate the Restated Agreement as amended or to
reject or suspend shipments thereunder. The foregoing sentence shall not be
construed to limit or restrict Seminole's right to reject and /or suspend
shipments and/or terminate the Restated Agreement as amended under other
provisions of the Restated Agreement as amended.

         L. Quality Premium/Penalty

         Article IX of the Restated Agreement is amended to include the
following quality premiums and penalties:

         (1) Sulphur

         A sulphur premium or penalty shall be applied to both Dotiki and
Pattiki coal at the rate of $****** per ton for each ******% below ******% or
above ******% sulphur, as the case may be, fractions pro rata, measured as a
monthly weighted average, up to a maximum of ******% sulphur. No premium or
penalty will be applied to coal ranging between ******% and ******% sulphur. If
requested by MAPCO and approved by Seminole, MAPCO may ship coal with sulphur
content in excess of ******% on a monthly weighted average basis, and an
additional penalty of $****** per ton shall be applied for each ******% above
******%, fractions pro rata. These premiums or penalties shall be applied on a
monthly weighted average basis to all tonnage shipped.

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         (2) Moisture

         (2a) A moisture premium or penalty shall be applied to Dotiki coal at
the rate of $****** per ton for each ******% below ******% or above ******%
moisture, as the case may be, fractions pro rata, measured as a monthly weighted
average. No premium or penalty will be applied to coal ranging between ******%
and ******% moisture. This premium or penalty shall be applied on a monthly
weighted average basis to all Dotiki tonnage shipped.

         (2b) A moisture premium or penalty shall be applied to Pattiki coal at
the rate of $****** per ton for each ******% below ******% or above ******%
moisture, as the case may be, fractions pro rata, measured as a monthly weighted
average. No premium or penalty will be applied to coal ranging between ******%
and ******% moisture. This premium or penalty shall be applied on a monthly
weighted average basis to all Pattiki tonnage shipped.

         (3) Ash

         An ash premium or penalty shall be applied to both Dotiki and Pattiki
coal at the rate of $****** per ton for each ******% below ******% or above
******% ash, as the case may be, fractions pro rata, measured as a monthly
weighted average. No premium or penalty will be applied to coal ranging between
******% and ******% ash. These premiums or penalties shall be applied on a
monthly weighted average basis to all tonnage shipped.

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         (4) Sulfur Removal Washing Credit.

         The parties agree to negotiate in good faith to consider a similar
premium/penalty provision for sulfur removal washing credit.

         (5) Section 16.6 of the Restated Agreement shall be modified as
follows: "The adjustments provided in Article IX and the penalties provided in
Paragraph L of Amendment No. 1 are liquidated remedies and together with the
remedies provided for in Article X shall be the Purchaser's sole and exclusive
remedies should the coal shipped not meet the specifications of Article IX."

         M.       Moisture

         Article IX of the Restated Agreement is amended to include the
following provision:

         MAPCO will use all reasonable efforts to maintain annual weighted
average moisture contents consistent with the 1993 through 1995 historical
annual weighted averages of ******% for Dotiki and ******% for Pattiki. Further,
MAPCO will use best efforts to ensure the monthly weighted average moisture
content does not exceed ******% for Dotiki and ******% for Pattiki. MAPCO's
agreement to the foregoing shall not alter the requirements, rights and/or
remedies contained in Article(s) IX, X, and XVI of the Restated Agreement. If
not specifically altered by this Amendment, the coal specifications and
conditions as stated in Articles IX, X, XVI of the Restated Agreement will
remain in effect.

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                              ARTICLE XI: INVOICING

         N. Section 11. 1 of Article XI shall be amended as follows:

         For coal loaded directly into a barge from a unit train or shipped via
CSTX rail non-barge modes of transportation, MAPCO will promptly forward an
invoice to Seminole showing the railroad car numbers, shipping date, weight of
such shipment, and applicable Current Price. For coal loaded into barges from
ground storage or under the provisions of Subparagraph J(2) of this Amendment
MAPCO will promptly forward an invoice to Seminole for all barges fully loaded
during a day showing the barge number, loading date, barge weight, applicable
Current Price, and applicable CSXT transportation rate from Dotiki or Pattiki to
MVCTC. All invoices shall show the applicable Current Price, to the extent that
the Current Price is then calculated by MAPCO in accordance with provisions of
the Restated Agreement as amended. Seminole shall pay all invoices within 20
days from receipt of invoice.

                           ARTICLE XIII: FORCE MAJEURE

         O. Section 13.4 of the Restated Agreement is amended whereby the annual
contract quantity specified in Article II shall be adjusted to increase the
Pattiki annual contract quantity by the amount of Pattiki Substitute Coal
elected to be supplied by MAPCO and decrease the Dotiki annual contract quantity
by the same quantity for such Contract Year for as long as Pattiki Substitute
Coal is provided.

                         ARTICLE XXIII ENTIRE AGREEMENT

         The first sentence of Section 23.1 of the Restated Agreement is amended
to state, "The Restated Agreement and this Amendment No. 1 together contain the
entire

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agreement between the parties as to coal produced and sold hereunder and
there are no representations, understandings or agreements, oral or written,
which are not included herein." If there is any inconsistency between this
Amendment and the terms of the Restated Agreement, the terms of this Amendment
shall control. Except as modified by this Amendment, the provisions of Section
23.1 remain in effect.

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<TABLE>
<S>                                                           <C>
(CORPORATE SEAL)                                              SEMINOLE ELECTRIC
ATTEST:                                                       COOPERATIVE, INC.

By:  /s/ T.S. Woodbury                                        By:  /s/ W.M.C. Walbridge
----------------------                                        -------------------------
Asst. Secretary                                               Executive Vice President and General
                                                              Manager

(CORPORATE SEAL)                                              WEBSTER COUNTY COAL
ATTEST:                                                       CORPORATION

By:  /s/ Thomas L. Pearson                                    By:  /s/ Joe Craft
--------------------------                                    ------------------
Secretary                                                     President

(CORPORATE SEAL)                                              WHITE COUNTY COAL
ATTEST:                                                       CORPORATION

By:  /s/ Thomas L. Pearson                                    By:  /s/ Joe Craft
--------------------------                                    ------------------
Secretary                                                     President

(CORPORATE SEAL)                                              MAPCO COAL, INC.
ATTEST:

By:  /s/ Thomas L. Pearson                                    By:  /s/ Joe Craft
--------------------------                                    ------------------
Secretary                                                     President
</TABLE>

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<PAGE>   18
                        GUARANTY AGREEMENT ACKNOWLEDGMENT

         MAPCO, Inc., its successors and assigns does hereby acknowledge and
consent to Amendment No. 1 To Restated And Amended Coal Supply Agreement, dated
May 10, 1996, but effective as of April 1, 1996, by and between MAPCO Coal,
Inc., Webster County Coal Corporation, White County Coal Corporation
(collectively referred to as "MAPCO") and Seminole Electric Cooperative, Inc.
("Seminole"), and MAPCO, Inc. does hereby confirm that the Guaranty executed and
effective on February 1, 1986, continues in full force and effect as to the
Restated And Amended Coal Supply Agreement as further amended by
Amendment No. 1.

         Executed this 10th day of May, 1996.

                                   MAPCO, Inc.

                                   By:  /s/ James E. Barnes
                                      ---------------------
                                   Title:  Chairman, President & CEO
                                         ---------------------------

                                       18<PAGE>   1
                                                                   EXHIBIT 10.15

CONFIDENTIAL TREATMENT REQUESTED

                          INTERIM COAL SUPPLY AGREEMENT

         THIS AGREEMENT is effective the 1st day of May, 2000, by and between
SEMINOLE ELECTRIC COOPERATIVE, INC., a Florida corporation ("Seminole"), and
ALLIANCE COAL, LLC, a Delaware limited liability company ("Alliance").

                                   WITNESSETH:

         WHEREAS, Seminole and Alliance are parties to a Restated and Amended
Coal Supply Agreement dated as of February 1, 1986 and most recently amended by
Amendment No. 1 as of May 10, 1996 ("Restated Agreement"), between Seminole and
Alliance's predecessor in interest, MAPCO Coal, Inc. as agent for Webster County
Coal, LLC and White County Coal, LLC, as successors-in-interest to Webster
County Coal Corporation and White County Coal Corporation, respectively; and

-------------------------
****** denotes confidential information with respect to which a separate
confidential treatment request has been filed with the Securities and Exchange
Commission. Please note that pages 19-24 have been redacted pursuant to the
confidential treatment request.

<PAGE>   2
         WHEREAS, the term of the Restated Agreement extends through ******; and

         WHEREAS, the parties desire to enter into this Agreement to establish
terms and conditions to govern certain purchases and sales of coal pursuant to
the Restated Agreement during the term hereof;

         NOW, THEREFORE, in consideration of the premises, the mutual covenants
herein contained, and other good and valuable consideration, including but not
limited to the concurrent execution of those certain Arbitration Agreement and
Agreement regarding the Terms and Conditions of Arbitration between Seminole and
Mt. Vernon Transfer Terminal, LLC, a wholly-owned subsidiary of Alliance and
successor-in-interest to Mt. Vernon Coal Transfer Company, dated as of April 12,
2000, respectively, the parties hereto do hereby agree as follows:

                                    ARTICLE I

                                TERM OF AGREEMENT

         The term of this Agreement shall commence as of May 1, 2000 and shall
expire at midnight on ****** (the "Term"); PROVIDED, HOWEVER, that the
provisions of Article VII, ******, shall be effective as of ******.

                                      -2-
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                                   ARTICLE II

                       RELATIONSHIP TO RESTATED AGREEMENT

         2.1 Unless otherwise defined in this Agreement, capitalized terms used
herein shall have the same meaning as in the Restated Agreement.

         2.2 Except as modified by or otherwise specifically provided in this
Agreement, the Restated Agreement shall continue in full force and effect, and
shall continue to apply to and govern the supply of coal by Alliance to Seminole
during the Term hereof.

                                   ARTICLE III

                                  PRICE REVIEW

         3.1 Seminole and Alliance agree that the coal price review and
adjustment pursuant to Sections 8.1 through 8.5 of the Restated Agreement which
is scheduled to be effective as of January 1, 2001 shall be implemented as
follows:

             (a) The new Base Price for coal from the Pattiki Mine shall be
determined by ****** the Current Price for such coal as of October 1, 2000 by
****** percent (******%).

             (b) The new Base Price for coal from the Dotiki Mine shall be
determined by ****** the Current Price for such coal as of October 1, 2000 by
****** percent (******%). An example of the application of this Section 3.1 is
set forth in Exhibit A to this Agreement.

                                      -3-
<PAGE>   4

         3.2 The New Base Cost Components for the new Base Prices established
pursuant to Section 3.1 hereof shall be determined in accordance with Section
8.6 of the Restated Agreement.

         3.3 The new Base Prices established pursuant to Section 3.1 hereof
shall be subject to adjustment pursuant to Sections 7.1 through 7.3 of the
Restated Agreement commencing April 1, 2001 and shall be subject to adjustment
pursuant to Sections 7.4 through 7.9 (as applicable) commencing January 1, 2001.

                                   ARTICLE IV

                                COAL SUBSTITUTION

         4.1 Definitions. As used herein:

             (a) "Dotiki Coal" shall mean coal supplied by Alliance from the
Dotiki Mine which complies with the quality requirements for Dotiki Coal as set
forth in Articles IX and X of the Restated Agreement.

             (b) "Pattiki Coal" shall mean coal supplied by Alliance from the
Pattiki Mine which complies with the quality requirements for Pattiki Coal as
set forth in Articles IX and X of the Restated Agreement.

             (c) "Dotiki Type Coal" shall mean coal supplied from any source
other than the Dotiki Mine and which shall

                                      -4-
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comply, on an individual trainload basis, with the minimum quality
specifications for coal from the Dotiki Mine set forth in Section 10.2 of the
Restated Agreement, and on a monthly weighted average basis comply with the
following quality specifications:

                  Btu per pound                      ****** (minimum)
                  HGI Index                          ****** (minimum)
                  Ash content                        ****** (maximum)
                  Moisture content                   ****** (maximum)
                  Chlorine                           ****** (maximum)
                  Ash Fusion Temperature             ****** (minimum)
                  (fluid reducing)

             (d) "Pattiki Type Coal" shall mean coal supplied from any source
other than the Pattiki Mine and which shall comply, on an individual trainload
basis, with the minimum quality specifications for coal from the Pattiki Mine
set forth in Section 10.2 of the Restated Agreement, and on a monthly weighted
average basis comply with the following quality specifications:

                  Btu per pound                      ******(minimum)
                  HGI Index                          ******(minimum)
                  Ash content                        ******(maximum)
                  Moisture content                   ******(maximum)
                  Chlorine                           ******(maximum)
                  Ash Fusion Temperature             ******(minimum)
                  (fluid reducing)

             4.2 Coal Substitution. During the Term hereof, in fulfilling its
obligations under Articles II, III and IV of the Restated Agreement, Alliance
also shall comply with the following:

                  (a)  Alliance shall deliver at least ****** tons

                                      -5-
<PAGE>   6

of either Dotiki Coal, or Dotiki Type Coal from any source other than the Dotiki
Mine, in each Contract Year, such deliveries to be scheduled ratably throughout
the year.

             (b) Alliance may deliver up to ****** tons of either Pattiki Coal,
or Pattiki Type Coal from any source other than the Pattiki Mine, in each
Contract Year, such deliveries to be scheduled ratably throughout the year;
PROVIDED, HOWEVER, that on an individual trainload basis, coal delivered
pursuant to this Section 4.2(b) shall comply with the minimum quality
specifications for coal from the Dotiki Mine set forth in Section 10.2 of the
Restated Agreement, and the quality specifications for chlorine and ash fusion
temperature set forth in Section 9.1 of the Restated Agreement.

             (c) The remaining balance of Alliance's annual coal delivery
obligations under the Restated Agreement (up to a maximum of ****** tons per
Contract Year) may be satisfied by deliveries of Pattiki Coal and/or Pattiki
Type Coal from any source other than the Pattiki Mine, such deliveries to be
scheduled ratably throughout the year.

             (d) Each trainload of Dotiki Type Coal shipped from a source other
than the Dotiki Mine shall meet a hardness specification of at least ****** HGI.
In the event that a trainload of Dotiki Type Coal shipped from a source other
than the Dotiki Mine does not meet a minimum hardness standard of

                                      -6-
<PAGE>   7

****** HGI, in lieu of rejection of the trainload by Seminole, Alliance may
elect to redesignate the trainload as a shipment of either Pattiki Coal (if from
the Pattiki Mine) or Pattiki Type Coal (if not from the Pattiki Mine), provided
it otherwise meets the criteria of Section 4.1(d) hereof. Such shipment shall be
accounted for as so redesignated.

         4.3 Source Schedules.

             (a) Alliance shall provide Seminole with a schedule of coal
deliveries pursuant to Section 4.2 hereof for each Contract Year, by month and
by mine source, not later than October 30 of the prior Contract Year. For
purposes of the 2000 Contract Year, Alliance's schedule of coal deliveries and
mine sources pursuant to Section 4.2 shall be provided to Seminole not later
than five (5) business days subsequent to execution of this Agreement. In the
event that Alliance subsequently desires to alter the monthly delivery schedule
or a mine source under such schedule, it shall provide Seminole with sufficient
advance notice of the change so as to not adversely impact Seminole's coal
delivery and transportation schedules, or Seminole's coal stockpile management
plan for the coal sources in question.

             (b) If, during the course of a Contract Year, Alliance proposes to
change a coal source from a source which is then currently supplying, or
scheduled to be the supply source under an agreement with a Seminole ******
customer, Seminole and

                                      -7-
<PAGE>   8

Alliance shall consult with each other in good faith to develop a coal source
substitution plan which satisfies both Alliance's supply source preference and
Seminole's ****** arrangements. In the event that an agreement cannot be
reached, any coal source change by Alliance shall be limited to sources within
the same transportation or freight rate district as the ****** customer's
then-current source, or another transportation or freight rate district which
offers an equivalent or lower transportation cost to the ****** customer, such
that the ****** customer's coal transportation cost per MMBtu would not be
increased. The provisions of this Section 4.3(b) shall apply to a maximum of
****** tons of coal in any Contract Year.

             (c) If Seminole determines that the number or variety of coal
sources proposed by Alliance pursuant to this Section 4.3 for a Contract Year,
or a subsequent change in the number or variety of coal sources proposed by
Alliance, cannot reasonably be accommodated through Seminole's reasonable
management of its coal storage area, Seminole shall so advise Alliance and
Alliance shall modify its proposed number or variety of coal sources in a manner
consistent with Seminole's coal storage area capabilities.

             (d) If Alliance proposes to deliver coal under this Agreement from
a source from which coal previously has not been burned successfully in
Seminole's coal-fired generating

                                      -8-
<PAGE>   9

plant, after reasonable determination, Seminole shall have the right
to conduct a test burn of up to ****** tons of coal, prior to the commencement
of regular deliveries from that source. If Seminole in its reasonable judgment
determines that the coal can be burned satisfactorily for the operation of the
plant, Seminole shall authorize Alliance to deliver additional coal from that
source, subject to the quality, coal storage area management, and scheduling
requirements of this Agreement.

             (e) Upon Seminole providing prior notice to Alliance and Alliance
providing Seminole acknowledgment of receipt of such notice, Seminole shall have
the right to inspect any coal source proposed by Alliance prior to the
commencement of deliveries from that source, in order to ensure that such
source's coal sampling, testing, weighing and loading procedures conform to the
standards set forth in the Restated Agreement. Seminole shall have no obligation
hereunder to accept shipments of coal from a source which does not conform to
these standards.

             (f) For all coal to be delivered from the Dotiki Mine, the Pattiki
Mine, or Alliance's Hopkins County Mine, the testing laboratories utilized to
measure the hardness of the coal shall be instructed to utilize the ASTM
standard 409-71 (revised 1978).

                                      -9-
<PAGE>   10
                                   ARTICLE V

                             SUSPENSION OF SHIPMENTS

         5.1 Any other provision of this Agreement notwithstanding, in the event
coal from a source other than the Dotiki Mine or the Pattiki Mine has
unforeseen, adverse effects on the operation of Seminole's coal-fired electric
generating plant, Seminole shall so notify Alliance and, at its option
exercisable at or subsequent to the time of notification, may direct Alliance to
suspend further shipments of coal from such source until Alliance can deliver
coal from such source (or other source(s)) which does not adversely affect the
operation of Seminole's plant. Upon notification by Seminole, Alliance
immediately shall take reasonable and economically prudent measures to correct
such conditions under its control so as to eliminate the cause of the adverse
effect. If shipments have been suspended at Seminole's direction and Alliance
believes it has corrected the condition, Alliance shall so notify Seminole and
the parties shall arrange for a test shipment. If the results of the test
shipment indicate that the coal can be burned satisfactorily, and that the
adverse operational effects have been eliminated, then shipments from the
subject source may be resumed by Alliance. If the test shows that the adverse
effects persist, Alliance will make no further shipments from the subject source
under this Agreement.

         5.2 The provisions of Section 5.1 notwithstanding, in

                                      -10-
<PAGE>   11

the event that the coal delivered by Alliance in any month from a particular
source fails to comply with the applicable quality specifications in Section 4.1
hereof on a monthly weighted average basis, Seminole shall so notify Alliance
and, at its option exercisable at or subsequent to the time of notification, may
direct Alliance to suspend further shipments of coal from such source until
Alliance provides reasonable assurances that future shipments will meet the
applicable coal quality specifications. Upon notification by Seminole, Alliance
immediately shall take reasonable and economically prudent measures under its
control to bring the coal into compliance with such specifications. If shipments
have been suspended at Seminole's direction and Alliance believes that the coal
will comply with the applicable quality specifications, Alliance shall so notify
Seminole and the parties shall arrange for a test shipment. If the results of
the test indicate that the coal complies with such quality specifications, then
shipments from the subject source may be resumed by Alliance. However, if, after
six (6) months from Seminole's initial notice, Alliance is unable to supply coal
which meets the applicable quality specifications in Section 4.1 of this
Agreement by economically prudent and reasonable measures, on a monthly weighted
average basis, then the Restated Agreement shall terminate and neither party
shall have any further rights or obligations thereunder

                                      -11-
<PAGE>   12

other than with respect to performance required prior to such termination.

         5.3 The provisions of this Article V notwithstanding, the quality
requirements and Seminole's rights concerning rejection, suspension and
cancellation related to shipments of coal from the Dotiki Mine or the Pattiki
Mine shall continue to be governed by applicable provisions of the Restated
Agreement.

                                   ARTICLE VI

                             SUBSTITUTE COAL PRICING

         6.1 Dotiki Mine Coal or Pattiki Mine Coal. The price paid by Seminole
for coal delivered under this Agreement by Alliance from the Dotiki Mine and/or
the Pattiki Mine (as applicable) shall be determined in accordance with
applicable terms of the Restated Agreement, subject to Article III and Section
6.3 of this Agreement.

         6.2 Dotiki Type Coal or Pattiki Type Coal. The prices paid by Seminole
for Dotiki Type Coal and Pattiki Type Coal delivered under this Agreement by
Alliance from sources other than the Dotiki Mine or the Pattiki Mine shall be
determined as follows:

             (a) A nominal FOB mine billing price shall be calculated quarterly
for each source of Dotiki Type Coal and for each source of Pattiki Type Coal
based upon the nominal heat

                                      -12-
<PAGE>   13

content (in Btus per pound) for each source. Such prices shall be those which
yield an equivalent delivered cost per million Btus to coal as if delivered from
the Dotiki Mine and/or the Pattiki Mine, respectively, calculated using the same
procedures employed to determine delivered costs for purposes of establishing
the Pattiki Substitute Coal Price under the Restated Agreement, specifically
excluding any price ****** adjustment (initially established as $****** per
ton). Examples of the calculation of quarterly nominal FOB mine billing prices
for Dotiki Type Coal and for Pattiki Type Coal are set forth in Exhibit B to
this Agreement.

             (b) The coal quality and weight of each trainload of coal shipped
as Dotiki Coal or Dotiki Type Coal, or Pattiki Coal or Pattiki Type Coal, shall
be determined in accordance with the provisions of the Restated Agreement
applicable to Dotiki Coal and Pattiki Coal, and shall be used to calculate
monthly weighted average quality statistics for sulfur, ash and moisture
(expressed as percentages) in accordance with the Restated Agreement. Monthly
premiums or penalties for ash and moisture content of all coal delivered by
Alliance shall be determined pursuant to the provisions of the Restated
Agreement applicable to Dotiki Coal and Pattiki Coal. Adjustments for sulfur
content shall be in accordance with Section 6.3 hereof.

             (c) In addition to adjustments, premiums and

                                      -13-
<PAGE>   14

penalties pursuant to Sections 6.2(b) and 6.3 hereof, an adjustment (calculated
separately for each coal source) shall be made to compensate for the variation
in heat content (i.e., Btus per pound) of coal delivered each month by Alliance,
based upon the weighted average heat content (i.e., Btus per pound) of coal
delivered from each source of Dotiki Type Coal and/or Pattiki Type Coal,
compared to the nominal heat content (i.e., Btus per pound) described in Section
6.2(a) of this Agreement. This adjustment procedure is illustrated in Exhibit B
to this Agreement.

             (d) Prices for Dotiki Type Coal and Pattiki Type Coal as determined
pursuant to this Article VI shall be deemed inclusive of all taxes, fees or
other assessments in connection with the mining, preparation or sale of coal
hereunder (whether such tax, fee or assessment is levied upon Alliance or levied
upon Seminole solely due to Dotiki Type Coal and Pattiki Type Coal being
supplied from substitute sources other than the Dotiki Mine and/or the Pattiki
Mine), and shall constitute the entire consideration payable by Seminole for all
coal delivered under this Agreement.

         6.3 Adjustments for Sulfur Content.

             (a) During the Term of this Agreement, Seminole's right to suspend
coal shipments pursuant to the sulfur content provisions of Section 10.3(3) of
the Restated Agreement shall be

                                      -14-
<PAGE>   15

limited to circumstances in which the sulfur content exceeds ******% for more
than ****** percent (******%) of the coal shipped by Alliance during a month.
This provision shall not affect Seminole's right to reject individual shipments
of coal pursuant to Section 10.2(3) of the Restated Agreement.

             (b) Subject to Section 6.3(a), above, in any calendar month during
the Term of this Agreement in which the weighted average sulfur content of coal
delivered by Alliance exceeds ******%, the following provisions shall apply:

                 (i) If the weighted average sulfur content is greater than
******% but less than or equal to ******%, Alliance shall pay a penalty for each
ton of coal delivered during the month equal to $****** for each ****** percent
(******%), or pro-rata fraction thereof, by which the sulfur content exceeds
******%.

                 (ii) If the weighted average sulfur content is greater than
******%, Alliance shall pay a penalty for each ton of coal delivered during the
month equal to $****** for each ****** percent (******%), or pro-rata fraction
thereof, by which the sulfur content exceeds ******%, and an additional $******
for each ****** percent (******%), or pro-rata fraction thereof, by which the
sulfur content exceeds ******%. An example of the penalties described in this
Section 6.3(b) is set forth in Exhibit C hereto.

                                      -15-
<PAGE>   16

             (c) The provisions of Sections 6.3(a) and (b) notwithstanding,
should any regulatory authority having jurisdiction impose a rule or standard on
Seminole's operation of its coal-fired electric generating plant that has the
effect of prohibiting the use of coal having a sulfur content greater than
******%, or permitting such use only upon the adoption of procedures or
installation of equipment that imposes additional cost on Seminole's operations,
Seminole shall provide notice to Alliance as early as practicable but no later
than thirty (30) days prior to the effective date of the prohibition or other
regulation. Alliance may elect to compensate Seminole for the additional cost,
and shall make payment as and when the expense is actually incurred by Seminole,
attributable to such procedures or equipment necessary to enable Seminole to
continue to use coal provided by Alliance with a sulfur content greater than
******%. In the event that Alliance declines to provide such compensation, then
at Seminole's sole option the provisions of this Section 6.3 shall be void and
of no further effect, and the sulfur content of all coal supplied by Alliance
pursuant to this Agreement shall be subject to the provisions of Section 9.1
(for Dotiki Coal and Dotiki Type Coal), Section 9.2 (for Pattiki Coal and
Pattiki Type Coal), and Section 9.3, Section 10.2(3), Section 10.3(3) and
Article XIV of the Restated Agreement for all coal.

                                      -16-
<PAGE>   17
                                   ARTICLE VII

                                     ******

                                  ARTICLE VIII

                                     GENERAL

         8.1 Construction. The validity, construction and performance of this
Agreement shall be determined in accordance with the laws of the State of
Florida.

         8.2 Confidentiality. Except to the extent that disclosure is required
by law, court order or applicable regulatory requirements, the provisions of
this Agreement shall not be disclosed to or discussed with anyone other than the
parties hereto, their respective officers, employees, agents and attorneys.
Where disclosure hereof is required, the affected party shall give notice
thereof to the other as far in advance as practicable, and shall take such
reasonable actions as are available under applicable law to attempt to preserve
the confidentiality of the material disclosed.

         8.3 Waiver. Unless otherwise provided herein, the failure of either
party on one or more occasions to insist upon strict performance of the
provisions of this Agreement or to avail itself of a right hereunder shall not
be construed as a waiver of any such provisions or right in the future, but the
same shall continue and remain in full force and effect for the duration of the
Term hereof.

                                      -17-
<PAGE>   18

         WHEREFORE, the parties by their undersigned, duly authorized
representatives, have executed this Agreement as of the 13th day of April, 2000.

                                      SEMINOLE ELECTRIC COOPERATIVE, INC.

Attest:

/s/ Steve R. Shearer                By:     /s/ Richard J. Midulla
------------------------------------   ---------------------------

                                    Its:    Executive Vice President and
                                            General Manager

                                    ALLIANCE COAL, LLC

Attest:

/s/ Thomas L. Pearson               By:     /s/ Gary J. Rathburn
------------------------------------   -------------------------

                                    Its:     Senior Vice President -
                                        ----------------------------
                                             Marketing

                                      -18-

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