SECOND AMENDMENT TO PURCHASE AGREEMENT

         THIS SECOND AMENDMENT TO PURCHASE  AGREEMENT (this AAmendment@) is made
and  entered into as of the 14th day of  March  2000,  by and  among  Ferrellgas
Partners, L.P., a Delaware limited partnership (Purchaser),  Ferrellgas, L.P.,
a Delaware  limited  partnership  (Subsidiary  OLP),  and Williams Natural Gas
Liquids, Inc., a Delaware corporation (Seller).

                              W I T N E S S E T H:

         WHEREAS,  Purchaser,  Subsidiary  OLP and Seller have entered into that
certain Purchase Agreement dated as of November 7, 1999, as amended by the First
Amendment to Purchase Agreement on December 17, 1999 (the Purchase Agreement);
and

         WHEREAS,  Purchaser,  Subsidiary OLP and Seller desire to further amend
the Purchase Agreement as set forth in this Amendment;

     WHEREAS,  pursuant to Section 9.3 of the Purchase  Agreement,  the Purchase
Agreement may be amended in writing by the parties thereto;

         NOW,  THEREFORE,  in  consideration  of the premises and the respective
representations,  warranties,  covenants,  agreements and  conditions  contained
herein, the parties hereto agree as follows:

                                    ARTICLE I

                      AMENDMENTS TO THE PURCHASE AGREEMENT

SECTION 1.1         Amendment to Section 1.4 of the Purchase Agreement.

         Section 1.4(a) of the Purchase  Agreement is hereby amended by deleting
30 days and inserting 105 days.

SECTION 1.2         Amendment to Section 4.2 of the Purchase Agreement.

         (a)  Section  4.2(d) of the  Purchase  Agreement  is hereby  amended by
adding the following  sentence at the end of the first paragraph of such section
prior to A(A) Converted Common Unit Value:

                 Seller  agrees that  notwithstanding  the five  business  day
         requirement  above,  any  obligations  of Purchaser and  Subsidiary OLP
         under this  Section  4.2(d)  shall not be payable  until the earlier to
         occur  of (x)  April 1,  2000 or (y) the  date  upon  which  the  audit
         contemplated by Sections 4.5 and 4.13 is completed.





         (b)      Section 4.2(e) of the Purchase Agreement is hereby amended by
 deleting 120 days and inserting 180 days.

         (c)      Section  4.2(f) of the  Purchase  Agreement  is hereby amended
 by adding the  following  sentence to the end of such section:

                  ASeller agrees that upon the occurrence of a Material Event in
         (B) above,  notwithstanding  the five  business  day  requirement,  any
         obligations  of Purchaser and  Subsidiary OLP under this Section 4.2(f)
         shall not be payable until the earlier to occur of (x) April 1, 2000 or
         (y) the date upon which the audit contemplated by Sections 4.5 and 4.13
         is completed.

SECTION 1.3         Amendment to Section 4.13 of the Purchase Agreement.

         Section 4.13 of the Purchase  Agreement is hereby  amended and restated
to read as follows:

                  ASECTION 4.13   Audit.

                           Purchaser has engaged Deloitte & Touche to perform an
                  audit of the Company=s  financial  records for the nine months
                  ended September 30, 1999, and for the years ended December 31,
                  1998  and  December  31,  1997,   and  to  prepare   financial
                  statements  whose format will comply with the  requirements of
                  the Securities and Exchange Commission.  Costs and expenses of
                  such an audit will be paid as follows:

                  $        The audit fees and expenses incurred by Ernst & Young
                           L.L.P.,  the first firm initially  engaged to perform
                           the audit, shall be borne by Seller;

                  $        The first  $300,000  of audit fees and  expenses
                           incurred  by  Deloitte & Touche  shall be
                           borne by Purchaser;

                  $        The  next  $343,750  (i.e.,   from  $300,000  through
                           $643,750) of such audit fees and expenses incurred by
                           Deloitte & Touche shall be borne by Seller; and

                  $        Any  additional  audit fees and expenses  incurred by
                           Deloitte & Touche (i.e.,  to the extent  greater than
                           $643,750) shall be borne by Purchaser.




                                   ARTICLE II

                               GENERAL PROVISIONS

SECTION 2.1   Full Force and Effect.

         Except as  expressly  amended  hereby,  the  Purchase  Agreement  shall
continue in full force and effect in accordance  with the provisions  thereof on
the date hereof.

SECTION 2.2   Other Provisions.

         Article IX of the Purchase  Agreement shall apply to this Amendment and
be incorporated  herein with the same force and effect as if its provisions were
reprinted as part of this Amendment.





         EXECUTED as of the date first written above.

                                     WILLIAMS NATURAL GAS LIQUIDS, INC.


                                 By:
                                     Name:
                                     Title:


                                     FERRELLGAS PARTNERS, L.P.
                                 By: Ferrellgas Inc., its general partner



                                 By:
                                      Name:
                                      Title:


                                      FERRELLGAS, L.P.
                                 By:  Ferrellgas, Inc., its general partner



                                 By:
                                      Name:
                                      Title: