================================================================================
PROSPECTUS SUPPLEMENT                FILED PURSUANT TO GENERAL INSTRUCTION II.L.
(TO PROSPECTUS DATED MAY 12, 2006)            OF FORM F-10; FILE NO. 333-133818.

NEW ISSUE

                               [GRAPHIC OMITTED]

                               P R I M E W E S T
                                  ENERGY TRUST

                          UP TO 3,000,000 TRUST UNITS


        PrimeWest   Energy  Trust  (the  "TRUST")  is  hereby   qualifying  for
distribution  (the "OFFERING") up to 3,000,000 trust units of the Trust ("TRUST
UNITS").

        The Trust and PrimeWest Energy Inc.  ("PRIMEWEST")  have entered into a
sales  agreement  dated  July 28,  2006 (the  "SALES  AGREEMENT")  with  Cantor
Fitzgerald  & Co.  ("CF&CO")  relating  to the  Trust  Units  offered  by  this
Prospectus Supplement and the accompanying  Prospectus.  In accordance with the
terms of the Sales  Agreement,  and except as noted below,  the Trust may offer
and sell up to 3,000,000  Trust Units,  from time to time through CF&Co, as the
Trust's  agent  for the  offer  and  sale of the  Trust  Units.  See  "Plan  of
Distribution".

        INVESTING  IN THE  TRUST  UNITS  INVOLVES  RISKS.  SEE  "RISK  FACTORS"
BEGINNING ON PAGE 7 OF THE ACCOMPANYING PROSPECTUS.

        NEITHER THE UNITED  STATES  SECURITIES  AND  EXCHANGE  COMMISSION  (THE
"SEC") NOR ANY STATE  SECURITIES  COMMISSION HAS APPROVED OR DISAPPROVED  THESE
TRUST UNITS OR DETERMINED IF THIS  PROSPECTUS  SUPPLEMENT AND THE  ACCOMPANYING
PROSPECTUS ARE TRUTHFUL OR COMPLETE.  ANY  REPRESENTATION  TO THE CONTRARY IS A
CRIMINAL OFFENCE.

        THE TRUST IS PERMITTED,  UNDER A MULTIJURISDICTIONAL  DISCLOSURE SYSTEM
ADOPTED BY THE UNITED  STATES,  TO PREPARE THIS  PROSPECTUS  SUPPLEMENT AND THE
ACCOMPANYING  PROSPECTUS IN ACCORDANCE WITH CANADIAN  DISCLOSURE  REQUIREMENTS.
PROSPECTIVE INVESTORS SHOULD BE AWARE THAT SUCH REQUIREMENTS ARE DIFFERENT FROM
THOSE OF THE UNITED  STATES.  THE  TRUST'S  FINANCIAL  STATEMENTS  INCORPORATED
HEREIN BY REFERENCE  HAVE BEEN PREPARED IN ACCORDANCE  WITH CANADIAN  GENERALLY
ACCEPTED  ACCOUNTING  PRINCIPLES  ("CANADIAN GAAP") AND ARE SUBJECT TO CANADIAN
AUDITING AND AUDITOR  INDEPENDENCE  STANDARDS AND THUS MAY NOT BE COMPARABLE TO
FINANCIAL STATEMENTS OF UNITED STATES' COMPANIES OR TRUSTS.

        PROSPECTIVE  INVESTORS  SHOULD BE AWARE THAT THE  ACQUISITION OF ANY OF
THE TRUST UNITS MAY SUBJECT  INVESTORS TO TAX  CONSEQUENCES  BOTH IN THE UNITED
STATES AND CANADA. THIS PROSPECTUS  SUPPLEMENT AND THE ACCOMPANYING  PROSPECTUS
MAY NOT DESCRIBE THESE TAX  CONSEQUENCES  FULLY.  PROSPECTIVE  INVESTORS SHOULD
READ THE TAX  DISCUSSION IN THIS  PROSPECTUS  SUPPLEMENT  AND THE  ACCOMPANYING
PROSPECTUS FULLY. SEE "CERTAIN INCOME TAX CONSIDERATIONS".

        YOUR  ABILITY  TO ENFORCE  CIVIL  LIABILITIES  UNDER THE UNITED  STATES
FEDERAL  SECURITIES  LAWS  MAY BE  AFFECTED  ADVERSELY  BECAUSE  THE  TRUST  IS
ORGANIZED  UNDER THE LAWS OF THE  PROVINCE  OF ALBERTA,  CANADA,  A MAJORITY OF
PRIMEWEST'S  OFFICERS AND  DIRECTORS  AND CERTAIN OF THE EXPERTS  NAMED IN THIS
PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING  PROSPECTUS ARE RESIDENTS OF CANADA,
AND ALL OF THE TRUST'S ASSETS AND ALL OR A SIGNIFICANT PORTION OF THE ASSETS OF
SUCH PERSONS ARE LOCATED OUTSIDE THE UNITED STATES.

                            Cantor Fitzgerald & Co.

            The date of this Prospectus Supplement is July 28, 2006.

================================================================================


        The  outstanding  Trust Units are listed on the Toronto Stock  Exchange
(the "TSX") under the symbol "PWI.UN" and the New York Stock Exchange  ("NYSE")
under the symbol "PWI".  On July 27, 2006, the closing price of the Trust Units
on the TSX was  Cdn.$34.45  per Trust Unit and the  closing  price of the Trust
Units on the NYSE was  U.S.$30.36  per Trust  Unit.  The TSX has  conditionally
approved the listing of the Trust Units offered by this Prospectus  Supplement.
Listing is subject to the Trust  fulfilling all of the  requirements of the TSX
on or before June 12, 2008. The NYSE has  authorized,  upon official  notice of
issuance, the listing of the Trust Units offered hereunder.

        Sales of Trust Units, if any, under this Prospectus  Supplement and the
accompanying  Prospectus may be made in negotiated transactions or transactions
that are  deemed to be "at the market  offerings"  as defined in Rule 415 under
the  Securities  Act  of  1933  (the  "SECURITIES  ACT")  and  "at  the  market
distributions" as defined in National Instrument 44-102 - SHORT FORM PROSPECTUS
DISTRIBUTIONS  ("NI  44-102")  ("at the  market  offerings"  and "at the market
distributions"  being  herein  referred  to as "AT THE MARKET  DISTRIBUTIONS"),
including  sales made directly on the NYSE, any other  existing  trading market
for the Trust Units or sales made to or through a market maker other than on an
exchange.  As a result,  prices may vary as between  purchasers  and during the
period of distribution. To the extent that the Trust sells Trust Units in other
transactions  that are deemed to be "at the market  distributions"  pursuant to
one or more sales  agreements  with  other  agents,  the number of Trust  Units
available  for sale under  this  Prospectus  Supplement  will be reduced by the
number of Trust Units sold by the other agents.

        CF&Co  will be  entitled  to  compensation  equal  to two and  one-half
percent (2.5%) of the gross sales price per Trust Unit for any Trust Units sold
under the Sales  Agreement (the  "COMMISSION").  In connection with the sale of
the  Trust  Units  on  the  Trust's  behalf,  CF&Co  may  be  deemed  to  be an
"underwriter" within the meaning of the Securities Act, and the compensation of
CF&Co may be deemed to be underwriting commissions or discounts. We have agreed
to  provide   indemnification   and   contribution  to  CF&Co  against  certain
liabilities, including liabilities under the Securities Act.

        No underwriter or dealer  involved in an "at the market  distribution",
no affiliate of such an  underwriter  or dealer and no person acting jointly or
in  concert  with such an  underwriter  or dealer  has  over-allotted,  or will
over-allot, Trust Units in connection with the distribution or effect any other
transactions that are intended to stabilize or maintain the market price of the
Trust Units.

        In connection with any  distribution of the Trust Units,  other than an
"at the market  distribution",  the  underwriters,  if any, may allot or effect
transactions  which  stabilize  or maintain the market price of the Trust Units
offered at a level above that which might otherwise prevail in the open market.
Such transactions, if commenced, may be discontinued at any time.

                   IMPORTANT NOTICE ABOUT INFORMATION IN THIS
             PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS

        This  document  is in two  parts.  The  first  part is this  Prospectus
Supplement,  which describes the specific terms of the Trust Units the Trust is
offering  and also adds to and updates  certain  information  contained  in the
accompanying prospectus and the documents incorporated by reference. The second
part,  the  accompanying  prospectus  dated May 12,  2006,  gives more  general
information.  The accompanying prospectus is referred to as the "Prospectus" in
this Prospectus Supplement.

        YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN OR INCORPORATED BY
REFERENCE INTO THIS  PROSPECTUS  SUPPLEMENT AND THE  PROSPECTUS.  THE TRUST HAS
NOT,  AND  CF&CO HAS NOT,  AUTHORIZED  ANY OTHER  PERSON  TO  PROVIDE  YOU WITH
DIFFERENT  INFORMATION.  IF ANYONE  PROVIDES YOU WITH DIFFERENT OR INCONSISTENT
INFORMATION,  YOU SHOULD  NOT RELY ON IT.  THE TRUST IS NOT,  AND CF&CO IS NOT,
MAKING AN OFFER TO SELL THESE SECURITIES IN ANY JURISDICTION WHERE THE OFFER OR
SALE IS NOT PERMITTED. YOU SHOULD ASSUME THAT THE INFORMATION APPEARING IN THIS
PROSPECTUS  SUPPLEMENT AND THE  PROSPECTUS,  AS WELL AS  INFORMATION  THE TRUST
PREVIOUSLY FILED WITH THE SEC AND WITH THE SECURITIES  REGULATORY  AUTHORITY IN
EACH OF THE  PROVINCES  AND  TERRITORIES  OF  CANADA  THAT IS  INCORPORATED  BY
REFERENCE, IS ACCURATE AS OF THEIR RESPECTIVE DATES ONLY. THE TRUST'S BUSINESS,
FINANCIAL CONDITION,  RESULTS OF OPERATIONS AND PROSPECTS AND THAT OF PRIMEWEST
MAY HAVE CHANGED SINCE THOSE DATES.


                                     (ii)




                                                         TABLE OF CONTENTS

                                                                  
NOTE REGARDING FORWARD-LOOKING STATEMENTS...............S-1          CONSOLIDATED CAPITALIZATION OF THE TRUST................S-7
EXCHANGE RATE...........................................S-3          PLAN OF DISTRIBUTION....................................S-8
ADDITIONAL INFORMATION..................................S-4          CERTAIN INCOME TAX CONSIDERATIONS.......................S-9
DOCUMENTS INCORPORATED BY REFERENCE.....................S-5          LEGAL MATTERS..........................................S-18
RISK FACTORS............................................S-6          INTERESTS OF EXPERTS...................................S-18
RECENT DEVELOPMENTS.....................................S-6          AUDITORS, TRANSFER AGENT AND REGISTRAR.................S-18
USE OF PROCEEDS.........................................S-7          AUDITORS' CONSENT......................................S-20



                                              TABLE OF CONTENTS FOR BASE SHELF PROSPECTUS

                                                                  
NOTE REGARDING FORWARD-LOOKING STATEMENTS.................1          DESCRIPTION OF TRUST UNITS...............................16
PRESENTATION OF OUR FINANCIAL, RESERVE AND                           DESCRIPTION OF THE ROYALTY...............................17
   OTHER INFORMATION......................................3          PLAN OF DISTRIBUTION.....................................18
NON-GAAP MEASURES.........................................4          CASH DISTRIBUTIONS ON TRUST UNITS........................19
EXCHANGE RATE.............................................4          CERTAIN INCOME TAX CONSIDERATIONS........................19
ADDITIONAL INFORMATION....................................5          LEGAL MATTERS............................................20
ENFORCEABILITY OF CERTAIN CIVIL LIABILITIES...............5          INTERESTS OF EXPERTS.....................................20
DOCUMENTS INCORPORATED BY REFERENCE.......................5          AUDITORS, TRANSFER AGENT AND REGISTRAR...................20
RISK FACTORS..............................................7          DOCUMENTS FILED AS PART OF THE REGISTRATION
PRIMEWEST ENERGY TRUST...................................15             STATEMENT.............................................20
USE OF PROCEEDS..........................................16          AUDITORS' CONSENT........................................21


                   NOTE REGARDING FORWARD-LOOKING STATEMENTS

        This Prospectus Supplement and the documents  incorporated by reference
herein contain forward-looking  statements with respect to the Trust, including
forward-looking  statements  within the  meaning of the United  States  Private
Securities Litigation Reform Act of 1995.

        The  use  of any of the  words  "anticipate",  "continue",  "estimate",
"expect",  "forecast", "may", "will", "project", "should", "believe", "outlook"
and similar expressions are intended to identify forward-looking statements. In
addition,  statements  relating to "reserves" or  "resources"  are deemed to be
forward-looking  statements,  as they  involve  implied  assessment,  based  on
certain  estimates and assumptions,  that the resources and reserves  described
can be profitably  produced in the future.  These statements  involve known and
unknown risks, uncertainties and other factors that may cause actual results or
events to differ  materially  from  those  anticipated  in the  forward-looking
statements.

        The Trust and  PrimeWest  believe the  expectations  reflected in those
forward-looking  statements  are  reasonable.  However,  neither  the Trust nor
PrimeWest can assure you that these expectations will prove to be correct.  You
should  not  unduly  rely  on  forward-looking   statements   included  in,  or
incorporated by reference into, this Prospectus  Supplement.  These  statements
speak  only as of the  date of this  Prospectus  Supplement  or as of the  date
specified  in the  documents  incorporated  by reference  into this  Prospectus
Supplement, as the case may be.


                                      S-1


        In  particular,   this   Prospectus   Supplement,   and  the  documents
incorporated by reference, contain forward-looking statements pertaining to the
following:

o       The quantity and recoverability of the Trust's reserves;

o       The timing and amount of future production, including full year average
        daily   production  for  2006  of  39,000  to  40,000  barrels  of  oil
        equivalent;

o       Prices for oil, natural gas and natural gas liquids produced;

o       Operating and other costs;

o       Business strategies and plans of management;

o       Supply and demand for oil and natural gas;

o       Expectations  regarding the Trust's ability to raise capital and to add
        to the  Trust's  reserves  through  acquisitions  and  exploration  and
        development;

o       The Trust's treatment under governmental regulatory regimes;

o       The amount of our capital  expenditures,  including our forecast  total
        capital expenditures for 2006 of $300 million, and the focus of capital
        expenditures on development activity rather than exploration;

o       The sale, farming in, farming out or development of certain exploration
        properties using third-party resources;

o       The  objective  to  achieve  a   predictable   level  of  monthly  cash
        distributions;

o       The intention of  maintaining a payout ratio of  distributions  to cash
        flow from operations within any range;

o       The use of development  activity and acquisitions to replace and add to
        reserves;

o       The impact of changes in oil and  natural gas prices on cash flow after
        hedging;

o       Drilling plans;

o       The  existence,  operations  and strategy of the  commodity  price risk
        management program;

o       The  approximate  and maximum amount of forward sales and hedging to be
        employed;

o       The Trust's  acquisition  strategy,  the criteria to be  considered  in
        connection therewith and the benefits to be derived therefrom;

o       The  impact  of  the  Canadian  federal  and  provincial   governmental
        regulations  on the Trust relative to other oil and natural gas issuers
        of similar size;

o       The goal to sustain or grow  production  and reserves  through  prudent
        management and acquisitions;

o       The emergence of accretive growth opportunities; and

o       The  Trust's   ability  to  benefit  from  the  combination  of  growth
        opportunities and the ability to grow through the capital markets.

        With respect to forward-looking statements contained in this Prospectus
Supplement, including the documents incorporated herein by reference, the Trust
and PrimeWest have made assumptions regarding, among other things:

o       Future oil and  natural  gas prices and  differentials  between  light,
        medium and heavy oil prices;

o       The cost of expanding the Trust's property holdings;

o       The Trust's ability to obtain equipment in a timely manner to carry out
        development activities;


                                      S-2


o       The  Trust's  ability  to  market  the  Trust's  oil  and  natural  gas
        successfully to current and new customers;

o       The impact of increasing competition;

o       The Trust's ability to obtain financing on acceptable terms; and

o       The Trust's ability to add production and reserves  through the Trust's
        development and exploitation activities.

        The  Trust's  actual  results  could  differ   materially   from  those
anticipated in these forward-looking statements as a result of the risk factors
set forth below and elsewhere in this Prospectus  Supplement and the Prospectus
and the documents  incorporated by reference in this Prospectus  Supplement and
the Prospectus:

o       Volatility in market prices for oil and natural gas;

o       The impact of weather conditions on seasonal demand;

o       Risks inherent in the Trust's oil and natural gas operations;

o       Uncertainties associated with estimating reserves;

o       Competition for, among other things: capital, acquisitions of reserves,
        undeveloped lands and skilled personnel;

o       Incorrect assessments of the value of acquisitions;

o       Geological, technical, drilling and processing problems;

o       General economic conditions in Canada, the United States and globally;

o       Industry  conditions,  including  fluctuations  in the price of oil and
        natural gas;

o       Royalties  payable  in  respect  of the  Trust's  oil and  natural  gas
        production;

o       Government  regulation of the oil and natural gas  industry,  including
        environmental regulation;

o       Fluctuation in foreign exchange or interest rates;

o       Unanticipated  operating  events that could reduce  production or cause
        production to be shut-in or delayed;

o       Failure to obtain industry partner and other  third-party  consents and
        approvals, when required;

o       Stock market volatility and market valuations;

o       OPEC's  ability to control  production  and balance  global  supply and
        demand of crude oil at desired price levels;

o       Political  uncertainty,  including  the  risks  of  hostilities  in the
        petroleum-producing regions of the world;

o       The need to obtain required approvals from regulatory authorities; and

o       The other  factors  discussed  under "Risk  Factors"  contained  in the
        Prospectus.

        These   factors   should   not  be   construed   as   exhaustive.   The
forward-looking  statements  contained in this  Prospectus  Supplement  and the
Prospectus  and the documents  incorporated  by reference  herein are expressly
qualified by this cautionary  statement.  The Trust and PrimeWest  undertake no
obligation to publicly update or revise any forward-looking statements.

                                 EXCHANGE RATE

        The following table sets out certain exchange rates based upon the noon
buying  rate in New York  City for  cable  transfers  in  Canadian  dollars  as
certified  for customs  purposes by the Federal  Reserve Bank of New York.


                                      S-3


The  rates are set out as  United  States  dollars  per  Cdn.$1.00  and are the
inverse  of the  rates  quoted  by the  Federal  Reserve  Bank of New  York for
Canadian dollars per U.S.$1.00.



                                 -----------------------------------------------         -----------------------------------
                                             Year Ended December 31,                         Three Months Ended March 31,
                                 -----------------------------------------------         -----------------------------------
                                    2003              2004               2005                 2005                 2006
                                 ----------        ----------         ----------         ------------          -------------
                                                                                                
Low                                0.6349            0.7158             0.7872               0.7961               0.8528
High                               0.7738            0.8493             0.8690               0.8346               0.8834
Average(1)                         0.7205            0.7719             0.8282               0.8155               0.8660


Note:
(1)     Average  represents  the  average  of the rates on the last day of each
        month.


        On July 27,  2006,  the  inverse of the noon  buying rate quoted by the
Federal  Reserve  Bank of New York  for  Canadian  dollars  was  Cdn.$1.00  per
U.S.$0.8814.

                            ADDITIONAL INFORMATION

        The Trust has filed with the SEC a registration  statement on Form F-10
of which this  Prospectus  Supplement  and the  Prospectus  forms a part.  This
Prospectus  Supplement  does not  contain  all the  information  set out in the
registration  statement.  For further information about the Trust and the Trust
Units, please refer to the registration statement.  The Trust is subject to the
information  requirements of the United States SECURITIES EXCHANGE ACT OF 1934,
as amended (the "EXCHANGE ACT") and applicable Canadian securities legislation,
and in accordance  therewith,  the Trust files and furnishes  reports and other
information with the SEC and with the securities regulatory  authorities of the
provinces of Canada. Under a multi-jurisdictional  disclosure system adopted by
the United States and Canada, the Trust generally may prepare these reports and
other  information in accordance  with the disclosure  requirements  of Canada.
These  requirements are different from those of the United States. As a foreign
private  issuer,  the Trust is exempt  from the rules  under the  Exchange  Act
prescribing  the furnishing and content of proxy  statements,  and  PrimeWest's
officers and directors,  and those Unitholders holding 10% or more of the Trust
Units, are exempt from the reporting and short-swing profit recovery provisions
contained in Section 16 of the Exchange Act.

        The reports and other  information  filed by the Trust with the SEC may
be read and copied at the SEC's public  reference  room at 100 F Street,  N.E.,
Washington,  D.C. 20549. Copies of the same documents can also be obtained from
the public reference room of the SEC in Washington by paying a fee. Please call
the SEC at 1-800-SEC-0330 for further information on the public reference room.
The SEC also maintains a web site  (www.sec.gov)  that makes available  reports
and other  information that the Trust files  electronically  with it, including
the  registration  statement  that the  Trust has filed  with  respect  to this
offering.

        Copies of  reports,  statements  and other  information  that the Trust
files  with the  Canadian  provincial  securities  regulatory  authorities  are
electronically  available  from the  Canadian  System for  Electronic  Document
Analysis and Retrieval (www.sedar.com),  which is commonly known by the acronym
"SEDAR".  Reports and other  information about the Trust are also available for
inspection at the offices of the TSX.

        Words importing the singular  number only include the plural,  and VICE
VERSA, and words importing any gender include all genders.

        All  dollar  amounts  set forth in this  Prospectus  Supplement  are in
Canadian dollars, except where otherwise indicated.

        All financial  information  for the Trust is determined  using Canadian
GAAP. "U.S. GAAP" means generally  accepted  accounting  principles that are in
effect  from  time  to time  in the  United  States.  For a  discussion


                                      S-4


of  the  principal   differences  between  the  Trust's  financial  results  as
calculated under Canadian GAAP and under U.S. GAAP, you should refer to Note 20
of the Trust's  audited  financial  statements  for the year ended December 31,
2005  incorporated  by reference in the  Prospectus and included in the Trust's
annual report on Form 40-F for the year ended December 31, 2005.

                      DOCUMENTS INCORPORATED BY REFERENCE

        This  Prospectus  Supplement  is deemed,  as of the date hereof,  to be
incorporated  by  reference  into the  Prospectus  only for the purposes of the
Trust Units offered hereby.  Other documents are also incorporated or deemed to
be incorporated  by reference into the Prospectus and reference  should be made
to the  Prospectus  for full details.  The material  change report of the Trust
dated  July 14,  2006  relating  to the  indirect  acquisition  by the Trust of
producing oil and gas assets  located in Montana,  North Dakota and Wyoming for
approximately  U.S.$300  million,  which  is  not  specifically  listed  in the
Prospectus,   and  which  is  filed  with  the  various  provincial  securities
commissions or similar authorities in Canada, is specifically incorporated into
and forms an integral part of this Prospectus Supplement.

        Any of  the  following  documents,  if  filed  by the  Trust  with  the
provincial  securities  commissions or similar  authorities in Canada after the
date of this  Prospectus  Supplement and before the completion or withdrawal of
any  offering  hereunder,  are deemed to be  incorporated  by reference in this
Prospectus Supplement:

(a)     material change reports (except confidential material change reports);

(b)     business acquisition reports;

(c)     comparative interim financial statements;

(d)     comparative   financial   statements  for  the  Trust's  most  recently
        completed  financial year, together with the accompanying report of the
        auditor; and

(e)     information circulars.

        ANY STATEMENT CONTAINED IN THE PROSPECTUS,  THIS PROSPECTUS  SUPPLEMENT
OR IN A DOCUMENT  INCORPORATED OR DEEMED TO BE INCORPORATED BY REFERENCE IN THE
PROSPECTUS  FOR THE PURPOSES OF THE OFFERING  SHALL BE DEEMED TO BE MODIFIED OR
SUPERSEDED,  FOR THE PURPOSES OF THE PROSPECTUS AND THIS PROSPECTUS SUPPLEMENT,
TO THE EXTENT THAT A STATEMENT  CONTAINED  HEREIN OR IN ANY OTHER  SUBSEQUENTLY
FILED  DOCUMENT  WHICH  ALSO IS OR IS DEEMED TO BE  INCORPORATED  BY  REFERENCE
HEREIN  MODIFIES OR SUPERSEDES  SUCH  STATEMENT.  THE MODIFYING OR  SUPERSEDING
STATEMENT  NEED NOT STATE THAT IT HAS MODIFIED OR SUPERSEDED A PRIOR  STATEMENT
OR INCLUDE ANY OTHER  INFORMATION SET FORTH IN THE DOCUMENT THAT IT MODIFIES OR
SUPERSEDES.  THE MAKING OF A MODIFYING OR  SUPERSEDING  STATEMENT  SHALL NOT BE
DEEMED AN ADMISSION FOR ANY PURPOSES THAT THE MODIFIED OR SUPERSEDED STATEMENT,
WHEN MADE,  CONSTITUTED A MISREPRESENTATION,  AN UNTRUE STATEMENT OF A MATERIAL
FACT OR AN OMISSION  TO STATE A MATERIAL  FACT THAT IS REQUIRED TO BE STATED OR
THAT  IS  NECESSARY  TO  MAKE  A  STATEMENT  NOT  MISLEADING  IN  LIGHT  OF THE
CIRCUMSTANCES  IN WHICH IT WAS MADE.  ANY  STATEMENT SO MODIFIED OR  SUPERSEDED
SHALL NOT  CONSTITUTE A PART OF THE PROSPECTUS OR THIS  PROSPECTUS  SUPPLEMENT,
EXCEPT AS SO MODIFIED OR SUPERSEDED.

        To  the  extent  that  any  document  or  information  incorporated  by
reference  into the Prospectus or this  Prospectus  Supplement is included in a
report that is filed with or  furnished  to the SEC on Form 40-F,  20-F,  10-K,
10-Q,  8-K  or 6-K  (or  any  respective  successor  form),  such  document  or
information  shall also be deemed to be incorporated by reference as an exhibit
to the registration  statement on Form F-10 of which this Prospectus Supplement
forms a part.  In  addition,  if and to the extent  indicated  therein,  we may
incorporate by reference into


                                      S-5


the Prospectus and this Prospectus  Supplement from documents that we file with
or furnish to the SEC pursuant to Section 13(a) or 15(d) of the Exchange Act.

        The Trust  maintains  an  Internet  web site on the  World  Wide Web at
www.primewestenergy.com. Information on the Trust's web site is not, and should
not be deemed to be, part of this  Prospectus  Supplement or the Prospectus and
is not being incorporated by reference herein.

        You may obtain any of the information  identified  above, and any items
incorporated by reference into this Prospectus Supplement or the Prospectus, by
writing or calling the Trust at the following address and telephone number:

        PrimeWest Energy Trust
        5100, 150 - 6th Avenue S.W.
        Calgary, Alberta, Canada, T2P 3Y7
        Attention:  Corporate Secretary

                                  RISK FACTORS

        An  investment  in the Trust Units is subject to a number of risks.  In
addition to the other information  contained in this Prospectus  Supplement and
the accompanying  Prospectus,  prospective purchasers of the Trust Units should
consider  carefully the risk factors set forth under the heading "Risk Factors"
beginning on page 7 of the accompanying Prospectus.

                              RECENT DEVELOPMENTS

        On June  24,  2006  PrimeWest  announced  that it had  entered  into an
agreement  to  acquire,  indirectly  through a  wholly-owned  U.S.  subsidiary,
producing oil and gas assets  located in Montana,  North Dakota and Wyoming for
total consideration of approximately U.S.$300 million (Cdn.$330 million using a
Canadian  to U.S.  dollar  exchange  rate of  0.90)  (the  "ACQUISITION").  The
Acquisition  closed on July 6, 2006.  To  finance  the  Acquisition,  PrimeWest
utilized its existing credit lines plus a supplementary  bridge credit facility
of Cdn.$250 million. See "Consolidated Capitalization of the Trust".

        This Acquisition  establishes a new operating area for PrimeWest within
the  Williston  Basin,  with  significant  secondary  and tertiary  development
potential.  Current production is approximately 3,200 barrels of oil equivalent
("BOE") per day.  Approximately  94% of this  production is crude oil, of which
80% is light crude oil produced  primarily from the  Mississippian and Devonian
formations.  Prior to the Acquisition,  PrimeWest's production was weighting at
73% to  natural  gas and 27% to crude oil and other  liquids.  The  Acquisition
changed the weighting to 68% natural gas and 32% crude oil and other liquids.

        The  properties  are  long-life  assets with a reserve  life index on a
proved  plus  probable  basis of 24.8  years  and are  therefore  accretive  to
PrimeWest's total proved plus probable reserve life index, raising it from 11.2
years at the end of 2005, to 12.3 years.  There are a number of infill drilling
and waterflood  optimization  opportunities  on these  properties that comprise
approximately  47,000  net  acres of land.  PrimeWest  is the  operator  of the
majority of the acquired  properties and holds an average  working  interest of
over 95%. Further highlights of the Acquisition are as follows:

o       PrimeWest acquired  approximately  3,200 BOE per day of production,  of
        which  94%  is  crude  oil  and  6% is  natural  gas,  representing  an
        incremental  1,500  BOE  per  day  on  an  annualized  basis  in  2006.
        Approximately  80% of the oil  production is  conventional  light crude
        with an  average  38-degree  API and


                                      S-6


        the remaining 20% has an average 20-degree API. PrimeWest now estimates
        that its full year total  production  for 2006 will be 39,000 to 40,000
        BOE per day;

o       approximately  20.4 million BOE of proved reserves and 28.9 million BOE
        of  proved  plus  probable   reserves  were  acquired   based  upon  an
        independent   engineering   assessment   completed  by  GLJ   Petroleum
        Consultants Ltd. ("GLJ") under National  Instrument  51-101 - STANDARDS
        OF DISCLOSURE FOR OIL AND GAS ACTIVITIES.  Approximately  two thirds of
        the  reserves  fall into the  proved  category  and will  require up to
        U.S.$100 million of additional future capital to fully develop;

o       the major fields included in the  Acquisition are Flat Lake,  Dwyer and
        Goose Lake in Montana; Rival, Grenora,  Alexander,  Wiley, Glenburn and
        Sherwood in North Dakota; and Rocky Point in Wyoming. The most prolific
        field is Flat Lake,  which is  geologically  similar  to the  producing
        fields  found  immediately  north  of  the  Canada/U.S.  border  in the
        Province of Saskatchewan;

o       operating  costs for the  acquired  assets for the  balance of 2006 are
        estimated to be approximately Cdn.$11.50 per BOE;

o       PrimeWest  expects to invest  approximately  Cdn.$23 million of capital
        for the  remainder  of 2006.  A number of drilling  opportunities  have
        already been  identified,  most of which are infill  horizontal  wells.
        Current well spacing on these  properties  ranges from 80 to 160 acres,
        making them  relatively  undeveloped  when compared to similar pools in
        Saskatchewan.  PrimeWest's total capital  expenditures for 2006 are now
        forecast to be approximately Cdn.$300 million; and

o       additional  upside  opportunities  in the form of higher density infill
        drilling,  waterflood  optimization,  and possible  future enhanced oil
        recovery projects have been delineated, based on preliminary mapping by
        PrimeWest and a separate study conducted by an independent  third party
        consultant.  This  upside  would  be in  addition  to the  proved  plus
        probable reserves identified by GLJ.

                                USE OF PROCEEDS

        The net proceeds from the Offering are not determinable in light of the
nature of the distribution. The net proceeds of any given distribution of Trust
Units through CF&Co in an "at the market distribution" will represent the gross
proceeds after deducting the Commission of two and one-half  percent (2.5%) and
the estimated  expenses of the distribution.  The net proceeds will be added to
the general funds of the Trust and will be used for general business  purposes,
including to repay a portion of the indebtedness  under PrimeWest's bank credit
facility and/or bridge credit facility. See "Consolidated Capitalization of the
Trust".

                   CONSOLIDATED CAPITALIZATION OF THE TRUST

        There  have  been  no  material  changes  in the in the  unit  or  debt
capitalization of the Trust since March 31, 2006, other than:

        (a)     the  lenders  under  the bank  credit  facility  confirmed  the
                borrowing  base of PrimeWest at  $650,000,000  and extended the
                revolving portion of the credit facility to June 2007;

        (b)     PrimeWest completed a private placement of (pound)63,000,000 of
                senior  secured  notes due June 14,  2016 (the  "U.K.  NOTES"),
                bearing  interest at an effective rate of 5.93% per annum.  The
                net proceeds of this  placement were used to repay a portion of
                the indebtedness  under  PrimeWest's bank credit facility.  The
                amount of credit  available  under  PrimeWest's  revolving term
                loan portion of the bank credit  facility  was  correspondingly
                reduced  to  $340,500,000,  of  which  $123,000,000  (including
                letters of credit in the amount of $6,712,000)  was drawn as at
                June 30, 2006. The holder of the UK Notes share on a PARI PASSU
                basis  the  security   interests   previously   provided  to  a
                collateral  agent for the benefit of the lenders under the bank
                credit facility and the holders of the U.S. $125,000,000 senior
                secured  notes.  The  U.K.  Notes  are a  legal  obligation  of
                PrimeWest and are guaranteed by the Trust; and


                                      S-7


        (c)     PrimeWest has refinanced its bank credit facilities,  including
                the credit  facility  made  available to a U.S.  subsidiary  of
                PrimeWest in connection with the completion of the Acquisition.
                PrimeWest,  the  Trust  and the U.S.  subsidiary  now have bank
                credit facilities  available to them in the aggregate amount of
                $625,500,000,  which include a bridge facility in the amount of
                $150,000,000.  The bridge  facility  matures on April 26, 2007.
                All amounts  outstanding  under the bank credit  facilities are
                secured by a charge  over all of the assets of  PrimeWest,  the
                Trust and its subsidiaries.  The bank credit facilities,  other
                than  the  bridge   facility   (collectively,   the  "REVOLVING
                FACILITIES"),  revolve  until June 30, 2007,  at which time the
                lenders may extend the revolving  period for a further 364 days
                or convert the Revolving Facilities to a term facility.  If the
                lenders  convert the Revolving  Facilities to a term  facility,
                60%  of  the  aggregate   principal  amount  of  the  Revolving
                Facilities  shall be  repayable  on the  date  that is one year
                after the date of  conversion,  and the  remaining  40% of that
                aggregate  principal amount shall be repayable on the date that
                is two years after the date of  conversion.  The next review of
                the  borrowing  base is to take  place on  November  30,  2006,
                unless  PrimeWest has repaid the bridge  facility by that time,
                in which case the next review of the borrowing  base is to take
                place on May 31, 2007 and annually thereafter.

                              PLAN OF DISTRIBUTION

        Subject to the terms and  conditions  of the Sales  Agreement  and upon
written instructions from the Trust, CF&Co will use its commercially reasonable
efforts consistent with its sales and trading  practices,  to solicit offers to
purchase the Trust Units.  CF&Co's  solicitation  will continue until the Trust
instructs  CF&Co to  suspend  the  solicitations  and  offers.  The Trust  will
instruct  CF&Co as to the amount of Trust Units to be sold by CF&Co.  The Trust
or CF&Co may suspend the offering of Trust Units upon proper notice and subject
to other conditions.

        CF&Co will provide written  confirmation to the Trust no later than the
opening of the trading day on the NYSE following the trading day in which Trust
Units are sold under the Sales Agreement.  Each  confirmation  will include the
number of Trust Units sold on the preceding day, the prices at which such Trust
Units were sold,  the gross  proceeds to the Trust,  the  aggregate  Commission
payable by the Trust to CF&Co in connection with the sales and the net proceeds
payable to the Trust.

        The Trust will pay CF&Co a  Commission  for its  services  in acting as
agent in the sale of Trust Units.  CF&Co will be entitled to compensation equal
to two and one-half  percent  (2.5%) of the gross sales price per Trust Unit of
any Trust Units sold under the Sales  Agreement.  The Trust  estimates that the
total  expenses  that it will incur for the  Offering,  excluding  compensation
payable to CF&Co under the terms of the Sales Agreement,  will be approximately
$100,000.

        Settlement  for sales of Trust  Units will occur on the third  business
day following the date on which any sales are made, or on such other date as is
industry  practice for  regular-way  trading,  in return for payment of the net
proceeds to the Trust.  There is no arrangement  for funds to be received in an
escrow, trust or similar arrangement.

        In connection  with the sale of the Trust Units on the Trust's  behalf,
CF&Co  may,  and will  with  respect  to sales  effected  in an "at the  market
distribution",  be deemed to be an  "underwriter"  within  the  meaning  of the
Securities Act, and the  compensation of CF&Co may be deemed to be underwriting
commissions or discounts.  The Trust has agreed to provide  indemnification and
contribution to CF&Co against certain civil liabilities,  including liabilities
under the Securities Act.

        The  offering  of Trust  Units  pursuant  to the Sales  Agreement  will
terminate  upon the earlier of (1) the sale of all Trust  Units  subject to the
agreement  by  CF&Co or (2)  termination  of the  Sales  Agreement.  The  Sales
Agreement  may be  terminated  by the Trust in its sole  discretion at any time
following  a period of three  months  from the date of the Sales  Agreement  by
giving  notice to CF&Co.  CF&Co may  terminate  the Sales  Agreement


                                      S-8


under  the  circumstances  specified  in the  Sales  Agreement  and in its sole
discretion at any time  following a period of three months from the date of the
Sales Agreement by giving notice to the Trust and PrimeWest.

        No underwriter or dealer  involved in an "at the market  distribution",
no affiliate of such an  underwriter  or dealer and no person acting jointly or
in  concert  with such an  underwriter  or dealer  has  over-allotted,  or will
over-allot, Trust Units in connection with the distribution or effect any other
transactions that are intended to stabilize or maintain the market price of the
Trust Units.

        The TSX has  conditionally  approved  the  listing  of the Trust  Units
offered  by  this  Prospectus  Supplement.  Listing  is  subject  to the  Trust
fulfilling all of the  requirements  of the TSX on or before June 12, 2008. The
NYSE has authorized, upon official notice of issuance, the listing of the Trust
Units offered hereunder.

                       CERTAIN INCOME TAX CONSIDERATIONS

CANADIAN FEDERAL INCOME TAX CONSIDERATIONS

        In the  opinion of  Stikeman  Elliott LLP  ("COUNSEL"),  the  following
summary   fairly   describes  the  principal   Canadian   federal   income  tax
considerations  pursuant  to the Tax Act and the  regulations  thereunder  (the
"REGULATIONS")  generally  applicable to a subscriber  who acquires Trust Units
pursuant to the Offering and who, for purposes of the Tax Act,  holds the Trust
Units offered hereby as capital property and deals at arm's length,  and is not
affiliated, with the Trust. Generally, the Trust Units will be considered to be
capital  property to a holder provided the holder does not hold the Trust Units
in the course of carrying on a business of trading or dealing in securities and
has not acquired them in one or more transactions considered to be an adventure
in the  nature  of  trade.  Certain  Canadian  resident  holders  who might not
otherwise be considered  to hold their Trust Units as capital  property may, in
certain circumstances,  be entitled to have them treated as capital property by
making the irrevocable election permitted by subsection 39(4) of the Tax Act. A
holder who is considering  making such election should first consult his or her
own tax  advisor.  This  summary is not  applicable  to: (i) a holder that is a
"financial  institution",  as  defined  in the  Tax  Act  for  purposes  of the
mark-to-market  rules;  or (ii) a holder an  interest  in which would be a "tax
shelter  investment"  as defined in the Tax Act. Any such holder should consult
its own tax advisor with respect to an investment in the Trust Units.

        This  summary  is  based  upon  the  provisions  of the Tax Act and the
Regulations in force as of the date hereof, all specific proposals to amend the
Tax Act and the Regulations  that have been publicly  announced by or on behalf
of the  federal  Minister of Finance  prior to the date  hereof (the  "PROPOSED
AMENDMENTS"),   and   Counsel's   understanding   of  the   current   published
administrative  practices of the Canada Revenue Agency ("CRA").  Except for the
Proposed  Amendments,  this summary  does not take into  account or  anticipate
changes in the income tax law, whether by legislative, governmental or judicial
action,  nor any  changes  in the  administrative  practices  of the CRA.  This
summary is not exhaustive of all Canadian federal income tax considerations nor
does  it  take  into  account  any  provincial,   territorial  or  foreign  tax
considerations  arising from the  acquisition,  ownership or disposition of the
Trust  Units.  Except as  otherwise  indicated,  this  summary  is based on the
assumption that all transactions described herein occur at fair market value.

        THIS SUMMARY IS OF A GENERAL NATURE ONLY AND IS NOT INTENDED TO BE, NOR
SHOULD IT BE CONSTRUED TO BE, LEGAL OR TAX ADVICE TO ANY PROSPECTIVE  HOLDER OF
TRUST UNITS, AND NO REPRESENTATIONS WITH RESPECT TO THE INCOME TAX CONSEQUENCES
TO ANY PROSPECTIVE HOLDER ARE MADE.  CONSEQUENTLY,  PROSPECTIVE  HOLDERS SHOULD
CONSULT THEIR OWN TAX ADVISORS WITH RESPECT TO THEIR PARTICULAR CIRCUMSTANCES.

Status of the Trust

        Based on representations of PrimeWest, the Trust presently qualifies as
a "mutual fund trust" as defined in the Tax Act, and this summary  assumes that
the Trust  will so  qualify on the date of the  closing  of this  offering


                                      S-9


and  continuously  thereafter for the duration of its  existence.  In the event
that the Trust  were not to  qualify  as a mutual  fund  trust,  the income tax
considerations  would in some  respects  be  materially  different  from  those
described below.

Taxation of the Trust

        The Trust is subject to  taxation in each  taxation  year on its income
for the year,  including net realized  taxable capital gains,  less the portion
thereof that it claims in respect of amounts paid or payable to  Unitholders in
the year. The taxation year of the Trust is the calendar year.

        The Trust is required to include in its income for each  taxation  year
all amounts in respect of the Royalty, including any amounts subject to set-off
in respect of any Crown charges reimbursed by it to PrimeWest in that year. The
Trust is also  required  to include in its  income for each  taxation  year all
interest that accrues to it to the end of the year, or becomes receivable or is
received  by it before  the end of the year,  except  to the  extent  that such
interest was included in computing  its income for a preceding  taxation  year.
Provided that  appropriate  designations  are made by the Trust,  all dividends
from taxable  Canadian  corporations  which would  otherwise be included in its
income as dividends received on shares owned by the Trust, including the shares
of PrimeWest,  will be deemed to have been received by  Unitholders  and not to
have been received by the Trust.

        In computing its income the Trust may deduct reasonable administrative,
interest and other  expenses  incurred to earn income and may  amortize  over a
five year period the underwriting  fees and other expenses of this offering and
any previous offering. The Trust may also deduct, in computing its income for a
year,  an amount not exceeding  10% of any positive  balance of its  cumulative
Canadian  oil and gas  property  expense  ("COGPE")  account at the end of that
year.  The cost of  acquiring  the Royalty was added to the Trust's  cumulative
COGPE  account,  and,  assuming the Royalty  qualifies as a "Canadian  resource
property" within the meaning of the Tax Act, any amount that the Trust has been
or will be required,  pursuant to the terms of the Royalty, to pay in a year in
respect of additional  Canadian resource  properties  acquired by PrimeWest has
been or will be added to the cumulative  COGPE account of the Trust.  An amount
that  becomes  receivable  by the  Trust in a year as a  result  of a sale of a
property by PrimeWest and the release of the Royalty relating to that property,
will be  required  to be deducted in  computing  the Trust's  cumulative  COGPE
account.  If the balance of the  cumulative  COGPE of the Trust at the end of a
particular  taxation year after all additions and deductions for that year have
been made would  otherwise be a negative  amount,  the negative  amount will be
included in the Trust's income for the year.

        In accordance with the  Regulations,  the Trust may deduct in computing
its income for a year a resource  allowance equal to a specified  percentage of
its "adjusted  resource  profits".  Generally,  the Trust's  adjusted  resource
profits  are equal to its income  from the  Royalty  less  amounts  deducted in
computing its income other than deductions in respect of its cumulative  COGPE,
interest  expense  or any  amount  deducted  in  respect  of  distributions  to
Unitholders. The resource allowance is being phased out over a five-year period
that  commenced in 2003. In 2006, the amount that may be deducted in respect of
the  Trust's  resource  allowance  is 8.75% of the  Trust's  adjusted  resource
profits. That percentage will be reduced to 0% in 2007.

        Prior to 2003,  the Trust could not deduct Crown charges  reimbursed by
it to PrimeWest in respect of the Royalty.  After 2002, Crown charges that were
previously  not deductible  are  deductible.  This deduction is being phased in
over the same  five-year  period  over which the  resource  allowance  is being
phased out. In 2006, 65% of Crown charges are deductible.  That percentage will
increase to 100% in 2007.

        Prior to full phase-out of the deduction for the resource allowance and
full  phase-in of the  deduction  for Crown  charges,  the  excess,  if any, of
non-deductible  reimbursed Crown charges over the resource allowance deductible
by the Trust in the year is deemed to be an amount  that has become  payable to
the Unitholders,  to the extent  designated by the Trust.  Counsel  understands
that the Trust has designated and will continue to designate the full amount of
any such excess annually in respect of the Unitholders.


                                     S-10


        Where the Trust distributes  property of the Trust to a Unitholder on a
redemption  of Trust  Units,  the Trust will be deemed to receive  proceeds  of
disposition  equal to the fair market value of such property at that time,  and
such  distribution  may give rise to income or capital gains to the Trust.  The
Trust will be entitled for each taxation year to reduce (or receive a refund in
respect of) its liability,  if any, for tax on its net taxable capital gains by
an amount determined under the Tax Act based on the redemption or retraction of
Trust Units during the year (the  "CAPITAL  GAINS  REFUND").  The Capital Gains
Refund in a particular year may not completely offset the Trust's tax liability
for such  taxation  year  which may arise upon  distributions  of  property  in
connection  with  the  redemption  of Trust  Units.  The  Declaration  of Trust
accordingly  provides that income of the Trust which is required to satisfy any
tax liability on the part of the Trust shall not be payable to Unitholders.

        The Trust may deduct  amounts which become payable by it to Unitholders
in the year, to the extent that the Trust has net income for the year after the
inclusions and deductions  outlined above. An amount will be considered to have
become  payable to a  Unitholder  in a taxation  year only if it is paid in the
year by the Trust to the  Unitholder or the Unitholder is entitled in that year
to  enforce  payment  of the  amount.  The  terms of the  Declaration  of Trust
generally  provide that all income of the Trust for a taxation  year net of the
Trust's  expenses  will be paid or made  payable  to  Unitholders  in the year.
Therefore,  as  a  result  of  such  deduction  from  income  and  the  Trust's
entitlement  to a  Capital  Gains  Refund  it is  anticipated  that  the  Trust
generally  will not have any taxable income for the purposes of the Tax Act. In
order to utilize  losses from prior  taxation  years,  the Trust may claim as a
deduction  an amount that is less than the amount of its income that is paid or
payable to  Unitholders  in the year if it  designates  such amount not to have
been paid or become payable to the Unitholders.

Taxation of Unitholders Resident in Canada

        The  following  summary is  applicable  to  Unitholders  who are or are
deemed to be resident in Canada for purposes of the Tax Act.

        A Unitholder will generally be required to include in computing  income
for a particular  taxation year the portion of the net income of the Trust that
is paid or becomes payable to the Unitholder in that particular  taxation year,
whether or not the amount is actually  paid to the  Unitholder  in that year or
reinvested  in  additional  Trust Units.  An amount will be  considered to have
become payable to a Unitholder in a taxation year if the Unitholder is entitled
in the year to enforce payment of the amount.  For the purposes of the Tax Act,
income of a  Unitholder  from the Trust Units will be  considered  to be income
from property and not resource  income.  Any deduction or loss of the Trust for
purposes of the Tax Act cannot be  allocated  to, or treated as a deduction  or
loss of, a  Unitholder.  The Trust will provide  Unitholders  with the relevant
information required for completion of their Canadian income tax returns at the
relevant time.

        Provided  that  appropriate  designations  are made by the Trust,  such
portions of its net taxable  capital gains and taxable  dividends  from taxable
Canadian  corporations as are paid or payable to a Unitholder will  effectively
retain  their  character  as  taxable  capital  gains  and  taxable  dividends,
respectively,  and be  treated  as  such in the  hands  of the  Unitholder  for
purposes of the Tax Act.

        Any amount paid or payable by the Trust to Unitholders in excess of the
income of the Trust and the  non-taxable  portion of capital gains made payable
to  Unitholders  in a year  generally will not be included in the income of the
Unitholders  but will reduce the adjusted cost base to Unitholders of the Trust
Units.  The non-taxable  portion of capital gains realized by the Trust that is
paid  or made  payable  to a  Unitholder  in a year  will  not be  included  in
computing the Unitholder's income for the year and will not reduce the adjusted
cost base to the Unitholder of the Trust Units. To the extent that the adjusted
cost base of Trust  Units  would  otherwise  be less than zero,  that  negative
amount will be treated as a capital gain  realized by the  Unitholder  from the
disposition  of Trust  Units and the  Unitholder's  adjusted  cost base will be
increased by the amount of such deemed capital gain.

        The cost to a  Unitholder  of Trust  Units  acquired  pursuant  to this
Offering  will equal the  purchase  price of the Trust Units plus the amount of
any other reasonable costs incurred in connection therewith.  This cost will be


                                     S-11


averaged  with the  adjusted  cost base of all other  Trust  Units  held by the
Unitholder at that time as capital property to determine the adjusted cost base
to the Unitholder of each Trust Unit.

        Upon the  disposition or deemed  disposition by a Unitholder of a Trust
Unit,  whether on a redemption  or otherwise,  the  Unitholder  will  generally
realize a capital  gain (or a capital  loss)  equal to the  amount by which the
proceeds  of  disposition  are  greater  (or less)  than the  aggregate  of the
Unitholder's  adjusted  cost base of the Trust  Unit and any  reasonable  costs
associated with the disposition. Where Trust Units are redeemed and property of
the Trust,  including a portion of the Royalty,  is  distributed IN SPECIE to a
Unitholder on the redemption,  the proceeds of disposition to the Unitholder of
the  Trust  Units  will  generally  be equal to the  fair  market  value of the
property so distributed  less the amount of any income or capital gain realized
by  the  Trust  on  the  distribution  of  such  property,  other  than  on the
distribution  of the portion of the Royalty.  The cost to a  Unitholder  of any
property  distributed  to the  Unitholder  on a redemption  of Trust Units will
generally be equal to the fair market value of such property at the time of the
distribution.  Where notes are distributed to a Unitholder on the redemption of
a Trust Unit,  holders of notes generally will be required to include in income
interest  that is received or  receivable  or that  accrues  (depending  on the
status of the Unitholder as an individual, corporation or trust) on the notes.

        Generally,  one-half of any capital  gain (a  "TAXABLE  CAPITAL  GAIN")
realized  by  a  Unitholder  in  a  taxation  year  must  be  included  in  the
Unitholder's  income  for the  year,  and  one-half  of any  capital  loss  (an
"ALLOWABLE  CAPITAL LOSS")  realized by a Unitholder in a taxation year must be
deducted from taxable  capital gains  realized by the  Unitholder in that year.
Allowable capital losses for a taxation year in excess of taxable capital gains
for that year  generally  may be carried  back and deducted in any of the three
preceding  taxation  years or carried  forward and  deducted in any  subsequent
taxation year against net taxable  capital gains realized in such years, to the
extent  and  under  the  circumstances  described  in the Tax  Act.  Where  the
Unitholder is a corporation,  any capital loss realized on the disposition of a
Trust Unit will  generally  be reduced by the amount of any  taxable  dividends
that  were  designated  by the Trust in  respect  of the  corporation  and were
deductible by the  corporation in computing its taxable  income.  Similar rules
apply where the Unitholder is a partnership or a trust.

        Taxable capital gains realized by a Unitholder who is an individual may
give rise to "alternative minimum tax" depending on the Unitholder's particular
circumstances.  A Unitholder  that  throughout the relevant  taxation year is a
"Canadian-controlled  private  corporation",  as defined in the Tax Act, may be
liable to pay an  additional  refundable  tax of 6 2/3% on  certain  investment
income, including taxable capital gains and certain income from the Trust.

Taxation of Unitholders Not Resident in Canada

        The following summary is applicable to Unitholders who are not resident
or deemed to be resident in Canada for purposes of the Tax Act.

        Any  distribution  of income of the  Trust to a  Unitholder  who is not
resident  or deemed to be  resident  in Canada  will  generally  be  subject to
Canadian  withholding tax at the rate of 25%, unless such rate is reduced under
the provisions of a tax treaty between Canada and the Unitholder's jurisdiction
of  residence.  A Unitholder  resident in the United  States who is entitled to
claim the benefit of the Canada-US Tax Convention  will be entitled to have the
rate of withholding reduced to 15% of the amount of any income distributed. The
Trust  is  also  obligated  to  withhold  on  all  capital   distributions   to
non-residents  at the rate of 15%,  including  on any amount  distributed  to a
non-resident  holder on a redemption  of Trust Units that is not subject to the
25% withholding tax referred to above. Where a non-resident  sustains a capital
loss on a  disposition  of Trust Units such loss may reduce the  non-resident's
tax liability in respect of capital distributions.

        A  disposition  or  deemed  disposition  of a Trust  Unit,  whether  on
redemption or otherwise, will not give rise to any capital gains subject to tax
under the Tax Act to a holder who is not  resident  or deemed to be resident in
Canada  provided  the Trust Units are not  "taxable  Canadian  property" of the
holder for the purposes of the Tax


                                     S-12


Act.  Trust Units will not be considered to be taxable  Canadian  property to a
non-resident  holder unless: (a) the holder holds or uses, or is deemed to hold
or use,  the Trust Units in the course of  carrying on business in Canada;  (b)
the Trust Units are "designated  insurance property" of the holder for purposes
of the  Tax  Act;  (c) at any  time  during  the 60  month  period  immediately
preceding the disposition of the Trust Units the holder,  persons with whom the
holder does not deal at arm's length (within the meaning of the Tax Act) or the
holder  together with such persons owned 25% or more of the issued Trust Units;
or (d) the Trust is not a mutual fund trust for the  purposes of the Tax Act on
the date of the disposition.

        Interest  paid or credited on notes to a  non-resident  Unitholder  who
receives  such notes on a redemption of Trust Units will be subject to Canadian
withholding  tax at a rate of  25%,  unless  such  rate is  reduced  under  the
provisions of an  applicable  tax treaty.  A Unitholder  resident in the United
States who is  entitled to claim the benefit of the  Canada-US  Tax  Convention
generally  will be entitled to have the rate of  withholding  reduced to 10% of
the amount of such interest.

CERTAIN U.S. FEDERAL INCOME TAX CONSIDERATIONS

        The following is a general summary of certain material anticipated U.S.
federal income tax consequences to a U.S. Unitholder,  as defined below, of the
ownership or  disposition  of Trust Units to which this  Prospectus  Supplement
pertains.  This discussion is based on the U.S.  Internal Revenue Code of 1986,
as amended  (the  "CODE"),  Treasury  regulations  promulgated  under the Code,
administrative  pronouncements or practices, judicial decisions, the Income Tax
Convention between the U.S. and Canada, as well as certain representations made
by the Trust,  all as of the date  hereof.  Future  legislative,  judicial,  or
administrative modifications, revocations, or interpretations, which may or may
not be retroactive,  or the failure of any factual  representation  to be true,
correct,  and complete in all  material  respects,  may result in U.S.  federal
income tax consequences  significantly  different from those discussed  herein.
This  discussion  is not  binding on the U.S.  Internal  Revenue  Service  (the
"IRS").  No ruling  has been or will be sought  or  obtained  from the IRS with
respect to any of the U.S. federal tax consequences discussed herein. There can
be no  assurance  that  the  IRS  will  not  challenge  any of the  conclusions
described herein or that a U.S. court will not sustain such a challenge.

        This discussion does not address any U.S. federal  alternative  minimum
tax; U.S. federal estate,  gift, or other non-income tax; or any state,  local,
or non-U.S. tax consequences of the ownership or disposition of Trust Units. In
addition,  this  discussion  does not  address  the  U.S.  federal  income  tax
consequences  to U.S.  Unitholders  subject to special  rules,  including  U.S.
Unitholders that (i) are banks, financial institutions, or insurance companies,
(ii) are regulated investment companies or real estate investment trusts, (iii)
are  brokers,  dealers,  or  traders  in  securities  or  currencies,  (iv) are
tax-exempt  organizations,  (v) hold Trust Units as part of hedges,  straddles,
constructive sales, conversion  transactions,  or other integrated investments,
(vi) acquire Trust Units as  compensation  for services or through the exercise
or cancellation of employee stock options or warrants,  (vii) have a functional
currency  other than the U.S.  dollar,  or (viii)  own or have owned  directly,
indirectly,  or  constructively  10% or more of all  classes  of stock or trust
units entitled to vote.

        As used herein, "U.S. UNITHOLDER" means a holder of Trust Units that is
for U.S.  federal  income tax  purposes  (i) a citizen or resident of the U.S.,
(ii) a corporation (or other entity taxable as a corporation  for U.S.  federal
tax purposes) organized under the laws of the U.S. or any political subdivision
thereof, including the States and the District of Columbia, (iii) an estate the
income of which is subject to U.S. federal income tax regardless of its source,
or (iv) a trust  that (a) is  subject to the  primary  jurisdiction  of a court
within  the U.S.  and for which  one or more U.S.  persons  have  authority  to
control all  substantial  decisions or (b) has a valid election in effect under
applicable  U.S.  Treasury  Regulations  to be treated as a U.S.  person.  If a
pass-through  entity,  including a  partnership  or other  entity  taxable as a
partnership for U.S. federal tax purposes,  holds Trust Units, the U.S. federal
income tax treatment of an owner or partner generally will depend on the status
of such owner or partner and on the activities of the  pass-through  entity.  A
U.S. person that is an owner or partner of a pass-through  entity holding Trust
Units is urged to consult its own tax advisor.


                                     S-13


        This  discussion  assumes that Trust Units are held as capital  assets,
within  the  meaning  of the  Code,  in the hands of a U.S.  Unitholder  at all
relevant times.

U.S.  UNITHOLDERS  AND ALL OTHER  HOLDERS  OF TRUST  UNITS ARE URGED TO CONSULT
THEIR OWN TAX ADVISORS  REGARDING THE NON-TAX  CONSEQUENCES OF THE OWNERSHIP OR
DISPOSITION OF TRUST UNITS AND THE NON-U.S.,  U.S.  FEDERAL,  STATE,  LOCAL, OR
OTHER TAXING JURISDICTION CONSEQUENCES OF THE OWNERSHIP OR DISPOSITION OF TRUST
UNITS THAT ARE RELEVANT TO THEM AND THEIR PARTICULAR CIRCUMSTANCES.

Classification as a Corporation

        Although  the  Trust  is  organized  as  an   unincorporated   open-end
investment  trust under  Canadian law, the Trust is classified as a corporation
for U.S.  federal  income tax  purposes  under  current  Treasury  regulations.
Accordingly,  Trust  Units  will be  treated  as shares of stock of a  non-U.S.
corporation for U.S.  federal tax purposes.  The discussion below reflects this
classification  and employs  terminology  consistent with this  classification,
including references to "dividends" and "earnings and profits".

Ownership or Disposition of Trust Units

        The U.S.  federal income tax  consequences to a U.S.  Unitholder of the
ownership or disposition of Trust Units will depend to a significant  extent on
whether or not the Trust will be a passive foreign  investment company ("PFIC")
during such U.S. Unitholder's holding period in its Trust Units.

Determining Passive Foreign Investment Company Status

        For U.S. federal income tax purposes, a non-U.S.  corporation is a PFIC
for each taxable year in which either:

(a)     at least 75% of its gross income is passive income (the "INCOME TEST");
        or

(b)     at least 50% of the average value of its assets,  generally measured by
        fair market value,  are assets that either  produce or are held for the
        production of passive income (the "ASSET TEST").

        In  determining  whether or not it is a PFIC,  the Trust is required to
take into  account its pro rata portion of the income and assets of each entity
treated as a corporation for U.S. federal tax purposes in which the Trust owns,
directly or indirectly,  at least a 25% interest (measured by value). Also, for
purposes of the income test and the asset test, passive income does not include
any income that is interest, a dividend or a rent or royalty, which is received
or accrued  from a related  person to the extent  that such  income is properly
allocable to income of the related person that is not passive income.

        For purposes of the PFIC rules,  passive income includes net gains from
some commodities  transactions,  including some transactions  involving oil and
gas. For this  purpose,  net gains from  commodities  transactions  will not be
included  in  passive  income  for  purposes  of the PFIC rules if (i) they are
active  business  gains  or  losses  from  the  sale of  commodities  and  (ii)
substantially  all of the  corporation's  commodities  are  stock  in  trade or
inventory  of the  corporation,  property  used in the trade or business of the
corporation,  or supplies used in the ordinary course of a trade or business of
the corporation.

        Under these rules and definitions,  the Trust believes that neither the
Trust nor PrimeWest was a PFIC in 2005,  and the Trust expects that neither the
Trust nor PrimeWest will be PFICs in 2006 or any subsequent  year.  PFIC status
is  fundamentally  factual in nature,  generally cannot be determined until the
close  of  the  taxable  year  in  question,   and  is   determined   annually.
Consequently,  the Trust can provide no  assurance  that the Trust or


                                     S-14


PrimeWest will not be a PFIC in 2006 or any subsequent year. A U.S.  Unitholder
is urged to consult its own tax advisor regarding the consequences of the Trust
being a PFIC in 2006 or any subsequent year.

        Tax  Consequences if the Trust Is Not and Does Not Become a PFIC During
Your Holding Period

        DIVIDENDS

        If the  Trust  is  not  and  does  not  become  a  PFIC  during  a U.S.
Unitholder's  holding  period  in  its  Trust  Units  and  the  Trust  makes  a
distribution with respect to Trust Units, such U.S. Unitholder will be required
to  include  in gross  income  as  ordinary  income  the  gross  amount of such
distribution,  to the extent that such distribution does not exceed the Trust's
current or accumulated  earnings and profits as determined  under U.S.  federal
income tax  principles (a  "DIVIDEND").  Dividends will not be eligible for the
dividends-received  deduction  generally  allowed to  corporations on dividends
received from a domestic  corporation.  A distribution in excess of the Trust's
current  and  accumulated  earnings  and  profits  will  first be  treated as a
tax-free  return of capital to the extent of a U.S.  Unitholder's  adjusted tax
basis in its Trust Units and will be applied against and reduce that basis on a
dollar-for-dollar  basis (thereby  increasing the amount of gain and decreasing
the amount of loss recognized on a subsequent  disposition of the Trust Units).
To the extent that the distribution exceeds the U.S.  Unitholder's adjusted tax
basis, the excess will be gain from a sale or exchange of the Trust Units.

        If Trust Units are readily tradeable on an established U.S.  securities
market,  within  the  meaning  of the  Code,  or if the Trust is  eligible  for
benefits under the Tax Convention,  then a distribution on Trust Units received
by a  non-corporate  U.S.  Unitholder  before January 1, 2011 may be "qualified
dividend  income"  to such U.S.  Unitholder  if the Trust is not a PFIC  during
either the tax year in which the distribution occurs or the preceding tax year.
If certain holding period and other  requirements are met,  qualified  dividend
income is  subject  to a maximum  rate of U.S.  federal  income  tax of fifteen
percent (15%) to a U.S. Unitholder that is not a corporation.

        Foreign Tax Credits

        Any foreign  income tax  withheld  with  respect to a dividend on Trust
Units,   subject  to  a  number  of  complex  limitations   (including  special
limitations to coordinate  with the qualified  dividend  income rules described
above), may be claimed as a foreign tax credit against a U.S. Unitholder's U.S.
federal income tax liability or may be claimed as a deduction for U.S.  federal
income tax purposes.  The  limitation  on foreign taxes  eligible for credit is
calculated  separately  with  respect to specific  classes of income.  For this
purpose, a dividend paid with respect to Trust Units generally will be "passive
income"  or,  in the case of  certain  U.S.  Unitholders,  "financial  services
income" for taxable years  beginning  before January 1, 2007. For taxable years
beginning after December 31, 2006, a dividend will be "passive category income"
or "general  category  income" for purposes of computing the foreign tax credit
allowable to a U.S.  Unitholder.  A U.S. Unitholder is urged to consult its own
tax advisor regarding the availability of the foreign tax credit.

        Foreign Currency Gain or Loss

        A taxable  dividend with respect to Trust Unit paid in Canadian dollars
will be included in the gross income of a U.S.  Unitholder as  translated  into
U.S.  dollars  by  reference  to the  exchange  rate in  effect on the day such
dividend is received by such U.S. Unitholder regardless of whether the Canadian
dollars are converted into U.S. dollars at that time. A U.S. Unitholder paid in
Canadian  dollars  that  converts  Canadian  dollars  into  U.S.  dollars  at a
conversion  rate  other  than the  rate in  effect  on the day of the  dividend
distribution  may have a foreign  currency  exchange gain or loss that would be
treated as U.S. source ordinary income or loss. A U.S.  Unitholders is urged to
consult its own tax advisor  concerning the U.S.  federal tax  consequences  of
acquiring, holding, or disposing of Canadian dollars.


                                     S-15


        SALE, EXCHANGE, OR OTHER TAXABLE DISPOSITION OF OUR TRUST UNITS

        If the  Trust  is  not  and  does  not  become  a  PFIC  during  a U.S.
Unitholder's  holding period in its Trust Units, such U.S. Unitholder generally
will recognize gain or loss on the sale, exchange, or other taxable disposition
of any of its Trust Units in an amount equal to the difference  between (a) the
amount of cash and the fair market value of any  property  received and (b) its
adjusted  tax basis in the  Trust  Units.  Any gain or loss  will be  long-term
capital gain or loss if, on the date of the sale,  exchange,  or other  taxable
disposition, the U.S. Unitholder's holding period exceeds one year. Any gain or
loss  realized by a U.S.  Unitholder  on the sale,  exchange,  or other taxable
disposition  of any of its Trust  Units  generally  will be treated as having a
U.S. source for U.S. foreign tax credit purposes.

        Foreign Currency Gains

        In the case of a cash  basis U.S.  Unitholder  that  receives  Canadian
dollars or any other foreign currency in connection with a sale,  exchange,  or
other  disposition of Trust Unit, the amount realized will be based on the U.S.
dollar value of the foreign  currency  received with respect to the Trust Units
as determined on the settlement date of the sale or exchange.  An accrual basis
U.S.  Unitholder may elect the same treatment required of a cash basis taxpayer
with respect to a sale or exchange of Trust Units,  provided that such election
is applied  consistently  from year to year.  This  election may not be changed
without the consent of the IRS. If an accrual  basis U.S.  Unitholder  does not
elect to be treated as a cash basis taxpayer,  such U.S.  Unitholder may have a
foreign  currency gain or loss for U.S.  federal income tax purposes because of
any  difference  between  the  U.S.  dollar  value  of  the  currency  received
prevailing  on the date of the sale or exchange of the Trust Units and the date
of payment.  This currency gain or loss would be treated as ordinary  income or
loss and  would be in  addition  to any gain or loss  recognized  by that  U.S.
Unitholder on the sale, exchange or other disposition of the Trust Units.

Tax Consequences if the Trust Were to Become a PFIC During Your Holding Period

        If the Trust were to become a PFIC during a U.S.  Unitholder's  holding
period  in its  Trust  Units and such U.S.  Unitholder  has not  timely  made a
"qualified  electing  fund"  election  or a  mark-to-market  election  (both as
described below),  such U.S.  Unitholder  generally would be subject to special
rules with respect to any "excess distribution" (as defined below) and any gain
realized on the sale or other disposition of Trust Units. Under these rules:

(a)     the excess  distribution or gain would be allocated ratably over a U.S.
        Unitholder's holding period;

(b)     the amount  allocated to the current taxable year and any year prior to
        the first year in a U.S. Unitholder's holding period in which the Trust
        became a PFIC would be taxed as ordinary income in the current year;

(c)     the  amount  allocated  to each of the  other  taxable  years  would be
        subject to tax at the highest ordinary income rate of tax in effect for
        the applicable class of taxpayer for that year; and

(d)     an interest  charge for the deemed  deferral  benefit  would be imposed
        with respect to the  resulting  tax  attributable  to each of the other
        taxable years.

        An "excess  distribution",  in general,  is any  distribution  on Trust
Units received in a taxable year by a U.S.  Unitholder that exceeds 125% of the
average  annual  distributions  received by such U.S.  Unitholder  in the three
preceding taxable years or, if shorter,  such U.S.  Unitholder's holding period
in  its  Trust  Units.  A  distribution  will  not  be  treated  as  an  excess
distribution  for the taxable  year during  which a U.S.  Unitholder's  holding
period in its Trust Units begins. A distribution  received by a U.S. Unitholder
that is not an excess  distribution  will be taxable under the rules  described
above in "TAX  CONSEQUENCES  IF THE  TRUST  IS NOT AND  DOES NOT  BECOME A PFIC
DURING YOUR HOLDING PERIOD - DIVIDENDS".


                                     S-16


        For  purposes  of the PFIC  rules,  if the Trust  were to become a PFIC
during a U.S.  Unitholder's  holding  period  in its  Trust  Units,  such  U.S.
Unitholder  would be deemed to own an  interest  in any PFIC owned  directly or
indirectly  by the Trust.  Accordingly,  if the Trust and  PrimeWest  both were
PFICs,  a U.S.  Unitholder  would be deemed to own an interest in PrimeWest for
purposes of the PFIC rules. If, as a result of this rule, a U.S.  Unitholder is
treated as owning stock of PrimeWest,  such U.S.  Unitholder  may be subject to
the excess distribution rules on:

(a)     a distribution  with respect to the indirectly owned stock by PrimeWest
        to the Trust,

(b)     a disposition of the indirectly owned PrimeWest stock by the Trust, and

(c)     a  disposition  of Trust Units by the U.S.  Unitholder  that reduces or
        terminates the U.S. Unitholder's indirect ownership of PrimeWest stock.

        All or a portion of any tax  withheld  by Canadian  taxing  authorities
with  respect to an excess  distribution  on Trust  Units may be  eligible  for
foreign tax credits,  subject to complex  limitations  described  above in "TAX
CONSEQUENCES IF THE TRUST IS NOT AND DOES NOT BECOME A PFIC DURING YOUR HOLDING
PERIOD -  DIVIDENDS  -  FOREIGN  TAX  CREDITS",  including  additional  special
limitations under the excess distribution  rules.  Because of the complexity of
these  limitations,  a U.S.  Unitholder is urged to consult its own tax advisor
with respect to any amount of foreign taxes that may be claimed as a credit.

        A U.S. Unitholder that holds "marketable stock" in a PFIC may avoid the
imposition of the additional tax and interest rules described above by making a
mark-to-market  election in the first year of it holding  period in such PFIC's
stock. The Trust believes that Trust Units are "marketable  stock" for purposes
of  the  mark-to-market   election.   If  a  U.S.  Unitholder  makes  a  timely
mark-to-market  election  with respect to Trust Units that it owns at the close
of its taxable year,  such electing  U.S.  Unitholder  will include as ordinary
income in that  taxable  year any excess of the fair market  value of its Trust
Units as of the  close of such year  over its  adjusted  tax basis in the Trust
Units.  An  electing  U.S.  Unitholder's  tax basis in its Trust  Units will be
adjusted to reflect  any such  income or loss.  Any gain or loss on the sale of
Trust  Units  will be  ordinary  income or loss,  except  that any loss will be
ordinary loss only to the extent of the previously  included net mark-to-market
gain. An election to mark-to-market  applies to the year for which the election
is made and  subsequent  years unless the PFIC stock ceases to be marketable or
the IRS consents to the revocation of the election. If the Trust ceases to be a
PFIC,  a U.S.  Unitholder  that has marked its Trust  Units to market  will not
include  mark-to-market  gain or loss with  respect to its Trust  Units for any
taxable  year that the Trust is not a PFIC,  and if the Trust  again  becomes a
PFIC in a taxable  year after a year in which it is not  treated  as a PFIC,  a
U.S.  Unitholder's  original   mark-to-market   election,   unless  revoked  or
terminated,  continues  to apply  and such U.S.  Unitholder  must  include  any
mark-to-market gain or loss in such year.

        The  mark-to-market  rules do not appear to prevent the  application of
the excess  distribution  rules in respect of stock in PrimeWest that also is a
PFIC.  If  the  Trust  were a PFIC  and  PrimeWest  also  were a  PFIC,  a U.S.
Unitholder  would be deemed to own an interest in PrimeWest for purposes of the
PFIC rules.  Accordingly,  if the Trust and  PrimeWest  were PFICs,  and a U.S.
Unitholder made a mark-to-market  election with respect to the Trust, such U.S.
Unitholder may remain subject to the excess  distribution rules described above
with respect to its indirectly owned stock in PrimeWest.

        If a U.S.  Unitholder  were able to make a timely  "qualified  electing
fund"  election  (a  "QEF  ELECTION"),  such  U.S.  Unitholder  may  avoid  the
additional tax and interest rules described above and instead would be required
to include in gross income each year such U.S.  Unitholder's  pro rata share of
the Trust's  ordinary  earnings and net capital gains,  if any.  Generally,  in
order to avoid  taxation  under the excess  distribution  rules, a QEF election
must be made in a  timely  filed  U.S.  federal  income  tax  return  of a U.S.
Unitholder for the first taxable year of such U.S.  Unitholder during which the
Trust was (at any time) a PFIC. A QEF election cannot, however, be validly made
unless the Trust were to provide  certain U.S. tax basis  information  and meet
certain other requirements.


                                     S-17


Therefore,  the Trust can provide no assurance that a U.S.  Unitholder  will be
able to make a timely  QEF  election  even if the  Trust  were to become a PFIC
during such U.S. Unitholder's holding period.

        A U.S. Unitholder is urged to consult its own tax advisor regarding the
consequences  in the event that the Trust  were to become a PFIC and  regarding
the availability and the consequences of a QEF or mark-to-market election.

United States Information Reporting and Backup Withholding

        Under  some  circumstances,  a U.S.  Unitholder  may be subject to U.S.
information  reporting and backup  withholding tax on distributions paid on, or
proceeds from the disposition of, Trust Units. Information reporting and backup
withholding will not apply, however, to a U.S. Unitholder that is a corporation
or is otherwise exempt from information  reporting and backup  withholding and,
when required,  demonstrates this fact. Backup  withholding also will not apply
to a U.S.  Unitholder that furnishes a correct taxpayer  identification  number
and certifies on a Form W-9 or successor form,  under penalty of perjury,  that
it is not subject to backup withholding, and otherwise complies with applicable
requirements of the backup withholding  rules. A U.S.  Unitholder that fails to
provide the correct  taxpayer  identification  number on Form W-9 or  successor
form may be  subject  to  penalties  imposed  by the IRS.  Backup  withholding,
currently at a 28% rate,  is not an  additional  tax,  and any amount  withheld
under  these  rules  will be  allowed  as a refund  or  credit  against  a U.S.
Unitholder's  U.S. federal income tax liability if the required  information is
furnished to the IRS.

                                 LEGAL MATTERS

        Certain legal matters  relating to Canadian law in connection  with the
Trust  Units  offered  hereby  will be  passed  upon on  behalf of the Trust by
Stikeman  Elliott LLP,  Calgary,  Alberta.  Certain legal  matters  relating to
United  States law in connection  with the Trust Units  offered  hereby will be
passed upon on behalf of the Trust by Paul, Weiss, Rifkind,  Wharton & Garrison
LLP, New York,  New York and on behalf of CF&Co by DLA Piper  Rudnick Gray Cary
US LLP, New York, New York.

                             INTERESTS OF EXPERTS

        The  partners  and  associates  of  Stikeman  Elliott  LLP, as a group,
directly or indirectly, less than 1% of the outstanding Trust Units.

        Reserve  estimates  contained in the AIF, and incorporated by reference
into this  Prospectus,  are based upon the report of GLJ dated January 23, 2006
evaluating, as at December 31, 2005, the reserves of crude oil, natural gas and
associated products  attributed to the properties.  Reserve estimates discussed
under "Recent  Developments" and in relation to the assets acquired pursuant to
the  Acquisition  are  based  upon the  report  of GLJ  dated  April  1,  2006,
evaluating  as at April 1, 2006 the  reserves  of crude  oil,  natural  gas and
associated  products attributed to the acquired  properties.  The principals of
GLJ, as a group, own,  directly or indirectly,  less than 1% of the outstanding
Trust Units.

                    AUDITORS, TRANSFER AGENT AND REGISTRAR

        The  auditors of the Trust are  PricewaterhouseCoopers  LLP,  Chartered
Accountants, 111 - 5th Avenue S.W., Suite 3100, Calgary, Alberta T2P 5L3.

        The transfer  agent and registrar for the Trust Units is  Computershare
Trust Company of Canada at its principal offices in Toronto and Calgary.


                                     S-18



                               AUDITORS' CONSENT

We have read the shelf  prospectus  supplement  of PrimeWest  Energy Trust (the
"TRUST")  dated July 28,  2006 (the  "PROSPECTUS  SUPPLEMENT")  relating to the
issue and sale of up to 3,000,000  trust units of the Trust.  We have  complied
with Canadian generally  accepted  standards for an auditor's  involvement with
offering documents.

We consent to the incorporation by reference in the above-mentioned  Prospectus
Supplement of our report to the  Unitholders  of the Trust on the  consolidated
balance  sheets  of the  Trust  as at  December  31,  2005  and  2004  and  the
consolidated statements of income, cash distributions,  unitholders' equity and
cash flows for the years then ended. Our report is dated February 10, 2006.


Calgary, Alberta                             /s/ PricewaterhouseCoopers LLP
July 28, 2006                                Chartered Accountants







                               [GRAPHIC OMITTED]


                               P R I M E W E S T

                                  ENERGY TRUST