<PAGE>

                                                            CONTRACT #96-412-026
                                                        HOPKINS COUNTY COAL, LLC
                                                                 AMENDMENT NO. 1

                                                                  EXHIBIT 10.104

          AMENDMENT NO. 1 TO AMENDED AND RESTATED COAL SUPPLY AGREEMENT

         THIS AMENDMENT NO. 1 TO AMENDED AND RESTATED COAL SUPPLY AGREEMENT
("Amendment No. 1") is entered into effective as of January 1, 2000, by and
between LOUISVILLE GAS AND ELECTRIC COMPANY (hereinafter referred to as
"BUYER"), whose address is 220 West Main Street, Louisville, Kentucky 40202, and
HOPKINS COUNTY COAL, LLC, a Delaware limited liability company and WEBSTER
COUNTY COAL, LLC, a Delaware limited liability company (successor to WEBSTER
COUNTY COAL CORPORATION, a Kentucky corporation), both having an address of 1717
South Boulder Avenue, Tulsa, Oklahoma 74119-4886, (the foregoing companies
hereinafter referred to as "SELLER"). In consideration of the agreements herein
contained, the parties hereto agree as follows.

1.0      AMENDMENTS

         The Amended and Restated Agreement heretofore entered into by the
parties, dated effective April 1, 1998, and identified by the Contract Number
set forth above, (hereinafter referred to as "Agreement") is hereby amended as
follows:

2.0      TERM

                  2.1 Section 2.0 TERM, is hereby modified to read as follows:

                  "The Term of this Agreement shall continue through December
                  31, 2001."

3.0      QUANTITY

3.1      Section 3.0 QUANTITY, is deleted and replace with the following:

                  "During the Term, Seller shall deliver and Buyer shall
                  purchase and accept delivery of the following quantities of
                  coal.

<TABLE>
<CAPTION>

         YEAR                         BASE QUANTITY (TONS)
         ----                         --------------------
<S>                                     <C>
December 1999                              60,000 *
         2000                           1,250,000
         2001                           1,250,000

</TABLE>

<PAGE>


                                                           CONTRACT #96-412-026
                                                       HOPKINS COUNTY COAL, LLC
                                                                AMENDMENT NO. 1

         * The additional 60,000 tons in December 1999 are in addition to the
         base quantity of 1,500,000 tons for 1999 and are priced as set forth in
         Section 8.1.

         Such coal shall be delivered ratably throughout the Term in accordance
         with reasonable delivery schedules to be mutually agreed by Buyer and
         Seller."

         3.2      Section 3.1 OPTION TO INCREASE OR DECREASE QUANTITY is added
                  and reads as follows:

                  "Buyer shall have the right to increase or decrease the Base
                  Quantity to be delivered hereunder by up to 31,250 tons per
                  calendar quarter (three months), for example, if Buyer
                  increases the quantity by 31,250 tons each quarter during a
                  calendar year, the net increase will be 125,000 tons. Buyer
                  shall exercise such option by giving Seller such notice
                  stating Buyer's exercise of the option and specifying the
                  increase or decrease in tonnage, no later than thirty days
                  prior to the first day of the quarter in which the increased
                  or decreased tonnage will be delivered."

4.0      SOURCE

         4.1      Section 4.1 SOURCE is hereby deleted and replaced with the
                  following:

                  "The coal sold hereunder shall be supplied from any one of the
                  geological seams Western Kentucky #11, #12, and #9 (surface
                  and underground), of any one of the Seller's Hopkins County
                  Mines, and/or from Seller's Webster County Coal, LLC Dotiki
                  Mine Complex, (all of the foregoing sources herein after
                  referred to as the "Coal Property")."

5.0      DELIVERY

         5.1      Section 5.1 BUYER'S OPTION is hereby deleted and replaced with
                  the following:

                  "The Delivery Points shall be designated as follows: For the
                  Hopkins County mines, the coal shall be delivered F.O.B.
                  railcar at the Hopkins County rail loading facility near
                  Madisonville, Kentucky on the Paducah and Louisville Railroad
                  (the "Delivery Point"). For mines in the Dotiki Mine Complex,
                  the coal shall be delivered F.O.B. railcar at the Dotiki rail
                  loading facility near Madisonville, Kentucky on the CSXT
                  Railroad which is accessible by the Paducah and Louisville
                  Railroad (the "Delivery Point"). Seller may deliver the coal
                  at a location different from the Delivery Points, provided,
                  however that Seller shall reimburse Buyer for any resulting
                  increases in the cost of transporting the coal to Buyer's
                  generating stations. Any resulting savings in such
                  transportation costs shall be shared by Buyer and Seller.
                  Buyer may request to change the Delivery Point to either
                  F.O.B. truck or F.O.B. barge. Upon Buyer's



<PAGE>

                                                            CONTRACT #96-412-026
                                                        HOPKINS COUNTY COAL, LLC
                                                                 AMENDMENT NO. 1

                  notification to Seller of its desire to change the Delivery
                  Point, Buyer and Seller shall mutually agree in writing upon
                  the change(s) and the time frame wherein such change will take
                  place."

         5.2      Section 5.3 DELIVERY TO SEBREE DOCK is deleted in its
                  entirety.


6.0      QUALITY

         6.1 Section 6 QUALITY is amended as follows:

                  "Seller has the option to supply coal of two different
                  qualities, noted as Quality #1 and Quality #2. Seller shall
                  exercise such option by giving Buyer such notice stating
                  Seller's intent to supply coal of Quality #1 or Quality #2, no
                  later than the fifteenth of the month, prior to the first day
                  of the calendar month during which that particular coal
                  Quality will be delivered. After Seller gives notice of the
                  particular quality to be delivered for a given calendar month,
                  Seller must supply coal of that quality for the entire
                  calendar month. Seller shall not supply coals of Quality #1
                  and Quality #2 during the same calendar month.

                  The following specifications are amended:

                                   QUALITY #1

                  All specifications are the same as specified in Section 6.1 of
                  the Amended and Restated Coal Supply Agreement for coal to be
                  delivered during the Secondary Term.

                                   QUALITY #2

<TABLE>
<CAPTION>

                          Guaranteed Monthly              Rejection Limits
Specifications            Weighted Average                (Per Shipment)
--------------            ------------------              -----------------
<S>                       <C>                             <C>
BTU/LB.                   Min. 11,200                     less than 10,900

ASH (lbs/Mmbtu)           Max. 12.00                      greater than 13.00

</TABLE>

                  All other specifications are the same as specified in Section
                  6.1 of the Amended and Restated Coal Supply Agreement for coal
                  to be delivered during the Secondary Term.

         6.2      Section 6.4 SUSPENSION AND TERMINATION is deleted and replaced
                  with the following:



<PAGE>

                                                            CONTRACT #96-412-026
                                                        HOPKINS COUNTY COAL, LLC
                                                                 AMENDMENT NO. 1

                  "If the coal sold hereunder fails to meet one or more of the
                  Guaranteed Monthly Weighted Averages set forth in ss.6.1 for
                  any two months during any twelve month rolling period during
                  thE term of this Agreement, or if two (2) truck shipments or
                  three (3) barge shipments in a seven-day period are rejectable
                  by Buyer, or if Buyer receives at its generating station two
                  (2) rail shipments which are rejectable in any ten-day period,
                  Buyer may, upon notice confirmed in writing and sent to Seller
                  by certified mail, terminate this Agreement and exercise all
                  its other rights and remedies under applicable law and in
                  equity for Seller's breach."

7.0      PRICE

         7.1      Section 8.1 BASE PRICE is deleted and replaced with the
                  following:

                  "The base price ("Base Price") of the coal to be sold
                  hereunder will be firm and in accordance with the following
                  schedule:

               QUALITY #1 - HOPKINS COUNTY MINE

<TABLE>
<CAPTION>
                          BASE PRICE
                          ----------
 YEAR             $ PER MMBTU                $ PER TON @ 11,400BTU
 ----             -----------                ---------------------
<S>                 <C>                             <C>
2000                $0.8224                         $18.75
2001                $0.8224                         $18.75

</TABLE>

               QUALITY #2 - HOPKINS COUNTY MINE


<TABLE>
<CAPTION>

                           BASE PRICE
                           ----------
 YEAR             $ PER MMBTU                $ PER TON @ 11,200 BTU
 ----             -----------                ----------------------
<S>                 <C>                             <C>
2000                $0.8100                         $18.14
2001                $0.8100                         $18.14

</TABLE>

              QUALITY #1 - DOTIKI MINE

<TABLE>
<CAPTION>

                          BASE PRICE
                          ----------
YEAR             $ PER MMBTU                $ PER TON @ 11,400BTU
-----            ------------------         ---------------------
<S>                 <C>                             <C>
2000                $0.7952                         $18.13
2001                $0.7952                         $18.13

</TABLE>



<PAGE>

                                                            CONTRACT #96-412-026
                                                        HOPKINS COUNTY COAL, LLC
                                                                 AMENDMENT NO. 1

                            QUALITY #2 - DOTIKI MINE

<TABLE>
<CAPTION>

                          BASE PRICE
                          ----------
YEAR             $ PER MMBTU                $ PER TON @ 11,200 BTU
----             -----------                ----------------------
<S>                 <C>                             <C>
2000                $0.7821                         $17.52
2001                $0.7821                         $17.52

</TABLE>

         7.2      Section 8.2 QUALITY PRICE DISCOUNTS, paragraph (b) is deleted
                  and replaced with the following:

                  "Notwithstanding the foregoing, for each specification each
                  month, there shall be no discount if the actual Monthly
                  Weighted Average meets the applicable Discount Point set forth
                  below. However, if the actual Monthly Weighted Average fails
                  to meet such applicable Discount Point, then the discount
                  shall be calculated on the basis of the difference between the
                  actual Weighted Average and the Guaranteed Monthly Weighted
                  Average pursuant to the methodology shown in Exhibit A of the
                  Agreement.

                  The Guaranteed Monthly Weighted Average and Discount Points
                  shall be calculated as follows:

                                   QUALITY #1

<TABLE>
<CAPTION>

                                   Guaranteed Monthly
                                   Weighted Average           Discount Point
                                   ----------------           --------------
<S>                       <C>                                <C>
BTU/Lb.                   Min. 11,400                        11,250
LB/MMBTU

SULFUR                    Max. 3.125                          3.325
ASH                       Max. 11.75                          12.50
MOISTURE                  Max. 11.50                          13.00

</TABLE>

                                   QUALITY #2

<TABLE>
<CAPTION>

                          Guaranteed Monthly
                          Weighted Average                 Discount Point
                          ----------------                 --------------
<S>                       <C>                                 <C>
BTU/Lb.                   Min. 11,200                         11,050

LB/MMBTU

</TABLE>



<PAGE>

                                                            CONTRACT #96-412-026
                                                        HOPKINS COUNTY COAL, LLC
                                                                 AMENDMENT NO. 1

<TABLE>

<S>                       <C>                                <C>
SULFUR                    Max. 3.125                          3.325
ASH                       Max. 12.00                          12.75
MOISTURE                  Max. 11.50                          13.00

</TABLE>


                  For example, if the Monthly Weighted Average of ash for
                  Quality #1 equals 13.5 lb/MMBtu, then the applicable discount
                  would be (13.5 lb - 11.75 lb.) X $0.0083/lb./MMBtu =
                  $0.01453/MMBtu.

         7.3      Section 8.3 PRICE, TERMS AND CONDITIONS REVIEW is deleted in
                  its entirety.


         IN WITNESS WHEREOF, the parties hereto have executed this Amendment No.
1 on the day and year below written, but effective as of the day and year first
set forth above.

HOPKINS COUNTY COAL, LLC.                LOUISVILLE GAS AND ELECTRIC COMPANY

BY:    /SIGNED/                          BY:    /SIGNED/
------------------------------------        ------------------------------------
TITLE:                                   TITLE:
      ------------------------------           ---------------------------------
DATE:                                    DATE:
     -------------------------------          ----------------------------------

WEBSTER COUNTY COAL, LLC

BY:   /SIGNED/
   ---------------------------------
TITLE:
      ------------------------------
DATE:
     -------------------------------