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                  RE:  AGREEMENT FOR SALE AND PURCHASE OF GAS




This letter shall confirm the agreement between Mobil Natural Gas Inc.
("Mobil") and Cascade Natural Gas Corporation ("Buyer") for the sale and
purchase of gas, in accordance with the provisions hereof, during the period
beginning November 1, 1993 and ending at the close of October 31, 1995.  When
executed by both parties, this Letter Agreement shall constitute a binding
agreement between Mobil and Buyer.

Mobil agrees to sell, and Buyer agrees to purchase, natural gas during the term
hereof in accordance with the following provisions and the terms and provisions
of Appendices A and B, attached to and made part of this Letter Agreement:


1.  NATURE OF SALE:  Warranty.  Mobil warrants that it will deliver gas in
    accordance with Section 4 of Appendix B, or pay damages subject to the
    provisions of Section 5 thereof, for its failure to deliver such quantity.

2.  TERM:  The Term of the Agreement shall be the Effective Period set out in
    Appendix A, Part I, to this Agreement.

3.  QUANTITY:  The Maximum Daily Quantity (MDQ) for each day during the term
    of this Agreement shall be the quantity set out on Appendix A.

4.  SALES POINT(S):  Title to and possession of gas delivered shall pass from
    Mobil to Buyer at the Sales Point(s) listed on Appendix A.

5.  COMMODITY CHARGE:  Buyer agrees to pay Mobil the Commodity Charge
    indicated on Appendix A for each MMbtu of gas nominated and received by
    Buyer, except as set forth in Section 3 of Appendix B to this Agreement.

6.  RESERVATION CHARGE:  Regardless of the amount of gas actually taken by
    Buyer in any month, Buyer agrees to pay Mobil the Reservation Charge
    indicated on Appendix A in consideration for Mobil's agreement to make a
    quantity of gas, up to the MDQ, available each day.

This Letter Agreement and Appendices A and B constitute the parties' entire
agreement as to the matters covered hereby.















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If the foregoing correctly reflects your understanding of our agreement, please
execute both of the enclosed originals of this Letter Agreement and return one
fully executed original to Mobil Natural Gas Inc.




                       Very truly yours,


                       MOBIL NATURAL GAS INC.





                       By:/s/  S. C. Freeman                     
                               S. C. Freeman
                               Manager - Term Sales & Marketing -North America



ACCEPTED AND AGREED to this   24th   day
of    November   , 1993.

BUYER:         Cascade Natural Gas Corporation

BY;            /s/   King Oberg              

NAME (Printed)       King Oberg              

TITLE:         Vice President, Gas Supply    
























                                    - 75 -

                                  APPENDIX A

WARRANT LETTER AGREEMENT



Attached to and forming part of the Letter Agreement dated November 1, 1993
between Mobil Natural Gas Inc. and Cascade Natural Gas Corporation.


PART I
                                    MDQ        SALES POINT(S)
Effective Period                 (MMBtu/d)     Location      

11/01/1993 - 10/31/9115          10,000        Opal, Wyoming, or as
                                               mutually agreed to
                                               by the parties.

Within this Term, each
"Contract Year" will
extend from Nov. 1 of
each year through Oct. 31
of the following year.            5,000        Piceance, Colorado.



PART II.  PRICE

The Price for gas delivered pursuant to this Letter Agreement at the Sales
Point(s) shall be comprised of the following components:

1.   a Commodity Charge, and
2.   a Reservation Fee.

These two components are defined as follows:

1.  Commodity Charge

The Commodity Charge shall be equal to the Commodity Price, in $U.S. per mmBtu,
times the number of mmBtu nominated by Buyer and delivered by Mobil to Buyer in
each month.

The Commodity Charge shall be equal to:

(a)  In the first Contract Year [CONFIDENTIAL TREATMENT HAS BEEN REQUESTED]
     US/mmBtu.  Under this pricing arrangement, Buyer must purchase 15,000
     mmBtu/d at 100% load factor;

(b)  In the second Contract Year, Buyer and Mobil will negotiate a new
     Commodity Charge.  Either of the following options are available:

     (i)  A fixed price to be agreed upon by July 30, 1994 which will be based
          upon the average of the current prices in effect at the time of 

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          commitment for natural gas futures contracts for the twelve forward
          months corresponding to that second Contract Year, as reported by the
          New York Mercantile Exchange.  Under this option, Buyer must purchase
          15,000 mmBtu/d at 100% load factor or

     (ii) The Inside F.E.R.C. Index, which shall be determined monthly as the
          spot price for gas delivered into the Northwest Pipeline Corporation
          - Rocky Mountains, as reported in the publication "Inside F.E.R.C.'s
          Gas Market Report" (McGraw Hill) under the heading of "Index", for
          the first Day of the Month or the earliest Day in that Month for
          which such prices are reported.

     (c)  If the parties are unable to conclude a fixed price negotiation by
          July 30, 1994, the Commodity Price for the second Contract Year will
          equal the price described in Part II.1.b.ii above.


2.   Reservation Fee

The Reservation Fee shall be equal to [CONFIDENTIAL TREATMENT HAS BEEN
REQUESTED] of the Commodity Price times the MDQ [CONFIDENTIAL TREATMENT HAS
BEEN REQUESTED],  times the number  of days in the month.
































                                    - 77 -

APPENDIX B
TERMS & CONDITIONS
WARRANTY LETTER AGREEMENT



1.Definitions:

a.  MMBtu: The unit of measurement shall be one million British Thermal Units
(MMBtu), determined on the basis of gross heating value (determined at 60
degrees F when saturated with water vapour at an absolute pressure of 14.73
psia, adjusted for water content as delivered).

b.  Day: A period from 7:00 A.M. at the Sales Points until 7:00 A.M. on the
following day.

c.  Month: A period from 7:00 A.M. on the first Day of the calendar month and
ending at 7:00 A.M. on the first Day of the following month.

2.   Decontrol:

Buyer and Mobil agree, to the extent they are legally empowered to do so, that
gas sold under this Agreement shall not be subject to control by any
governmental agency.  Instead, the parties intend to have their negotiated
price govern.

3.   Buyer's Obligations:

Buyer will notify Mobil, in writing, five working days prior to the end of each
Month, of the quantity of gas Buyer will purchase each Day during the next
Month.  Buyer may nominate any quantity from 85% to 100% of the MDQ but must
request the same quantity for each Day of the Month.  This quantity so
nominated when multiplied by the number of Days in the Month shall equal the
Purchase Quantity.  Buyer shall pay the Commodity Charge for each mmBtu
nominated by Buyer and tendered by Seller at the Sales Point(s) within the
Monthly Operating Tolerance, as defined in Term 4 below, of the Purchase
Quantity except as to any quantity Buyer is prevented from taking by Force
Majeure as defined in Section 9 below.  The Commodity Charge includes all
taxes, transportation charges, and other addons, attributable to the gas prior
to delivery, excluding only sales, use, and gross receipts taxes arising at the
time of delivery and/or title passage.  Buyer shall pay all sales, use and
gross receipts taxes unless Buyer is exempt, by law, from such taxes.  Buyer
agrees to provide Seller copies of any applicable exemption certificates.

Should Buyer purchase during any Month a quantity of gas less than 85% of the
MDQ multiplied by the number of days in the Month ("Monthly Contract Quantity"
or "MCQ"), Buyer shall pay to Mobil in the following Month, and immediately
after delivery of an invoice therefore, a penalty charge in an amount
determined by multiplying $0.30 US per mmBtu by the difference between 85% of
the MCQ and the total quantities actually purchased and taken by Buyer during
that Month.  However, Buyer shall have no obligation to pay such penalty charge
to the extent that such shortfall is excused by Force Majeure (as defined in
Section 9 below), or an act or omission of Mobil.
                                    - 78 -

4.   Seller's Obligation:

Mobil agrees to deliver each Day at the Sales Point(s) a quantity of gas within
the Daily Operating Tolerance (+10% of the Purchase Quantity), up to the MDQ. 
Mobil's obligation to deliver gas during any Month shall be met by deliveries
within + 10% (Monthly Operating Tolerance) of the Monthly Purchase Quantity
(the sum of the Purchase Quantities in effect each Day during such Month).  It
is expressly understood and agreed that Mobil is not committing or dedicating
any specific reserves or resources of gas to the performance of its obligations
under this Agreement.  During the Month, Buyer may request a change in the
quantity nominated for the remainder of the Month.  Mobil may, at its sole
option, agree to adjust the quantity nominated for the remainder of the Month,
when such adjustments can be made without economic loss to Mobil.

5.   Damages:

Subject to the provisions of this Agreement, if Mobil tenders a quantity of gas
that is less than the Purchase Quantity and outside the Daily Operating
Tolerance, Mobil shall pay damages for such failure in an amount equal to the
increased costs which Buyer demonstrates it paid for replacement Gas.  Such
increased costs, if any, shall be measured by comparing: (i) the costs Buyer
paid for replacement gas delivered to its facilities, and (ii) the costs Buyer
would have paid for gas purchased hereunder delivered to its facilities,
provided that it is understood that Buyer shall purchase the least expensive
replacement gas consistent with consideration of reliability of supply.  If,
however, any such shortfall does not result in Buyer receiving less gas at its
facilities than required, but rather results in an imbalance under Buyer's
transportation agreement(s), Mobil shall have no obligation to pay damages for
such shortfall; provided that Mobil, upon written demand and after having
failed to make-up such imbalance within the maximum period prescribed in
Buyer's transportation agreement(s), shall reimburse Buyer for any imbalance
penalties caused by Mobil's shortfall and paid by Buyer under its
transportation agreement(s).  Should either Buyer or Mobil become aware that
actual deliveries at the Sales Point(s) are greater or lesser than the Purchase
Quantity, and should such variance be outside the Daily Operating Tolerance,
such party shall notify the other party's dispatcher by telephone immediately. 
The parties agree that Mobil shall have no obligation to pay damages or
reimburse imbalance penalties to the extent that the shortfall is attributable
to any period in which Mobil was not aware that deliveries were not equal to
the Purchase Quantity, provided that the variance occurred through no fault of
Mobil, and provided that Mobil acted prudently to determine whether deliveries
were equal to the Purchase Quantity.  Further, Mobil shall have no obligation
to pay damages to the extent that such shortfall is excused by Mobil's force
majeure or an act or omission of Buyer or Buyer's Transporter.  In no event
shall Mobil's obligation to pay damages exceed $3.00 per MMBtu of gas not so
supplied under this Agreement, and provided further that the total damages
payable under this Agreement shall not exceed [CONFIDENTIAL TREATMENT HAS BEEN
REQUESTED] Buyer's written demand for damages or reimbursement for imbalance
penalties must be received within sixty (60) Days after the end of the Month
for which damages or imbalance penalties are claimed or Buyer shall be deemed
to have waived any right to seek damages or reimbursement for imbalance
penalties for such Month.  The remedy in this Sec. 5 shall be the exclusive 
                                    - 79 -

remedy for Mobil's failure to provide gas under this Agreement.  Neither party
shall be liable to the other for indirect, consequential, or special damages.

6.   Billing & Payment

Mobil shall provide Buyer an invoice by the 10th Day of each Month showing the
quantity of gas delivered at the Sales Points during the preceding Month and
the amount due therefor.  If actual measurement data is not available, Mobil
will estimate the volume delivered using the best information available.  Such
invoice shall also set out the amount of the applicable sales tax if Mobil's
information indicates that such tax is owed, and Buyer has not furnished to
Mobil the necessary exemption certificate(s).  Buyer shall pay the amount owed
for gas, and the amount of any sales tax, by electronic transmission of funds,
or other means agreeable to the parties, within ten (10) Days of the date of
Mobil's posting its invoice in the U.S. mails or other delivery mechanism or
service.  A revised invoice will be prepared as soon as actual data is
available, and any additional payment, or refund, will be made within 10 days
after the posting of Mobil's invoice in the U.S. mails or other delivery
mechanism or service.  Buyer's obligation to pay for gas nominated and
received, reservation charges owed, and pipeline imbalance penalties will not
be subject to any suspension for force majeure, and will survive the
termination hereof.  If Buyer fails to pay any amount when due, interest
thereon shall accrue at the lesser of the average prime commercial rate being
charged during the period of delinquency by Citibank, N.A., New York, N.Y., or
the effective maximum legal rate.  Each party has the right, at its expense and
during business hours, to examine the pertinent records and books of the other
to verify the accuracy of any invoice, charge, or computation.

7.   Measurement, Quality & Pressure:

The parties will agree which, as between them, is responsible for measurement. 
Measurement requirements will be those in effect on the pipeline system through
which gas is transported to the Sales Point(s).  Gas tendered by Mobil will
meet the quality and pressure specifications of the pipeline and/or facilities
at the Sales Point(s) into which gas is delivered.

8.   Warranty of Title:

Mobil warrants, at the time of delivery, Mobil's title to all gas delivered,
and that such gas will be free from liens, claims or encumbrances.  Mobil
indemnifies Buyer against any direct loss, damage or expense Buyer may sustain
from a claim involving gas sold hereunder relating to the foregoing warranty or
as to events or occurrences prior to its delivery at the Sales Point(s).  Buyer
agrees to indemnify Mobil against any direct loss, damage, or expense Mobil may
sustain from a claim involving gas sold hereunder relating to events or
occurrences at or after its delivery at the Sales Point(s).

9.   Force Majeure:

a.   Definition

Force Majeure as used herein shall mean any event beyond the reasonable control
of the party in question which prevents, in whole or in part, that party's 
                                    - 80 -

performance of obligations hereunder, and shall include, without limitations:
floods, hurricanes, breakage or accident to machinery, plants or pipelines,
failure or inability of Mobil's or Buyer's transporter(s) to transport gas made
available hereunder [CONFIDENTIAL TREATMENT HAS BEEN REQUESTED] and the
operation of governmental authority (except at the request of the party
claiming force majeure).  Except as provided above, Force Majeure shall not
include Buyer's loss of markets or Mobil's inability to secure gas at prices
satisfactory to Mobil.

b.   Termination if Extended Force Majeure

In the event that, due to Force Majeure, Seller fails to deliver or Buyer fails
to take all or a substantial part of the Gas required hereunder [CONFIDENTIAL
TREATMENT HAS BEEN REQUESTED] the party not  invoking Force Majeure may, at its
option, and without waiving any right to receive payments under this Contract,
terminate the Contract upon thirty (30) days written notice.

10.  Processing:

Mobil reserves the right to process gas after delivery at the Sales Point(s),
and agrees to indemnify Buyer for any Btu losses and transportation charges
incurred by Buyer as a result of Mobil's processing.

11.  Notice:

All notices will be in writing and will be deemed delivered when mailed by U.S. 
Mail to the address or telecopied to the fax numbers provided below, of the
other party.  Notice by telecopier shall be effective when received provided a
copy is mailed by the U.S.  Mail within two (2) working days.

Buyer:         Cascade Natural Gas Corporation
Attention:     Vice President, Gas Supply
Phone:         (206) 624-3900
Fax:           (206) 624-7215

Seller:        Mobil Natural Gas Inc.
Attention:     Manager - Term Sales and Marketing
Phone:         (713) 775-2576/(403) 260-7538
Fax:           (713) 775-4137/(403) 260-7559

12.  Imbalance Penalties:

Should either party, by its acts or omissions, cause an imbalance on
pipeline(s) transporting gas hereunder on behalf of the other party, and should
such imbalance cause the other party to incur a penalty from its transporter,
then the party causing the imbalance shall reimburse the other for any such
penalty incurred, provided that the party causing the imbalance receives timely
notice and an opportunity to correct the imbalance equal to the time period
provided in the transporter's tariff for making up such imbalances.  Each party
agrees to notify immediately the other party of any notice received from a
transporting pipeline that indicates that an imbalance exists which may give
rise to a penalty.  The parties agree to cooperate immediately to adjust their
gas nominations and/or deliveries as necessary to bring deliveries and receipts
                                    - 81 -

into balance to the extent that penalties are avoided or minimized as much as
possible.

13.  Statement of ComPliance:

Unless Seller is exempt or is not subject to the requirements of such laws,
Seller certifies that it is in full and complete compliance with all applicable
federal and state laws and regulations and amendments thereto, insofar as they
relate to nondiscrimination in employment, including among others, Executive
Order No. 11246 (Equal Employment Opportunity), effective September 24, 1965,
and all regulations of the Secretary of Labour promulgated thereunder; Section
503, Rehabilitation Act of 1973 (29 USC section 793), Executive Order 11758 and
regulations relating thereto (41 C.F.R. section 60-741.4); regulations relating
to disabled veterans and veterans of the Vietnam era (41 C.F.R. section 60-
250.1 et seq.) and the order of the Secretary of Labour relating thereto; Small
Business Act (15 USC section 637) relating to socially and economically
disadvantaged small business concerns and the regulations promulgated
thereunder, including 48 C.F.R. sections 19.701 et seq., Part 19 of the Federal
Acquisition Regulations, 48 C.F.R. sections 219.702 et seq. of the Dept. of
Defense regulations, and the regulations relating to labour surplus area
subcontracting (48 C.F.R. sections 220.7000 et sec. of the Dept. of Defense
regulations and 48 C.F.R. sections 20.000 et seq. of the Federal Acquisition
Regulations); and Executive Order 12138 and 48 C.F.R. sections 19.901 et seq.
of the Federal Acquisition Regulations regarding utilization of female-owned
business enterprises.  Seller also certifies that it does not and will not
maintain any facilities provided for its employees in segregated manner, or
permit its employees to perform their services at any location under its
control where segregated facilities are maintained.

14.  Assignment:

This Agreement shall be binding upon and shall enure to the benefit of the
parties hereto and their respective successors and permitted assigns.  The
rights and obligations of either party may not be assigned, except to an
affiliate of the assigning party, without prior written consent of the other
party, which consent shall not be withheld unreasonably.  Either party may
pledge such rights to a lender, provided that such lender agrees in writing to
be bound by the obligations hereunder to the other party.

15.  Legal and Regulatory:

This Agreement and the rights and obligations of the parties are subject to all
present and future valid laws, rules, regulations and orders of any legislative
body or duly constituted governmental or regulatory authority now or hereafter
having jurisdiction, or purporting to have jurisdiction over this Agreement and
the sale and purchase of gas hereunder.

(b) This Agreement shall be interpreted and construed in accordance with the
laws of the State of Washington without recourse to the rules for conflicts of
laws.

16.  Confidentiality:

Buyer and Seller agree that the terms of this Agreement and any resulting 
                                    - 82 -

transaction shall be kept strictly confidential, except to the extent required
by applicable law and except to the extent either Party is required to disclose
pertinent information concerning this Agreement to lenders, underwriters or
regulators within the normal course of business and except for the release of a
mutually agreeable summary of contract terms.  If either Party makes such
disclosure, it shall advise the leaders, underwriters or regulators that the
information disclosed is strictly confidential.

17.  Renewal:

In the event that neither party has defaulted hereunder, the parties agree to
enter into good faith negotiations from July 31, 1995 - August 31, 1995 to
extend the term of this agreement for a length of time and at a price mutually
agreeable to both parties.  In the event the parties are unable to reach an
agreement, this Agreement shall automatically terminate on October 31, 1995.







































                                    - 83 -

RE:  LETTER AMENDMENT DATED DECEMBER 8, 1993 TO
     AGREEMENT FOR SALE AND PURCHASE OF GAS
     DATED NOVEMBER 1, 1993

The subject agreement is amended by adding the following to the end of Clause 5
Damages:

5.   Damages:

"If at any time during the Term of this Agreement, the damages due and payable
under this Clause 5 equal the maximum amount of damages that may be claimed by
Buyer, Buyer may at any time thereafter terminate this Agreement effective five
(5) business days after Seller' receipt of Buyer's written notice of such
election."

If you are in agreement with the foregoing, please execute both of the enclosed
originals of the Letter Amendment and return one fully executed original to
Cynthia Babiy.

                              Yours truly,

                              MOBIL NATURAL GAS INC.




                              By: /s/   S. C. Freeman       
                                   S. C. Freeman
                                   Manager - Term Sales and
                                   Marketing - North America


Accepted and Agreed to this 21st day
of December, 1993.


Buyer:              Cascade Natural Gas Corporation

By:                 /s/ King Oberg                 

Name (Printed):     King Oberg                     

Title:              Vice President, Gas Supply     












                                    - 84 -