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                                [NSA LETTERHEAD]


                                 March 25, 1998




Mr. Ron E. Hooper
Burlington Resources Coal Seam
 Gas Royalty Trust
NationsBank of Texas, N.A., Trustee
NationsBank Plaza
901 Main Street, 17th Floor
Dallas, Texas 75202

Dear Mr. Hooper:

     In accordance with your request, we have estimated, as of January 1, 1998,
the (1) future net revenue to the Burlington Resources Coal Seam Gas Royalty
Trust (Trust) net profits interest and (2) proved reserves to the Burlington
Resources Oil & Gas Company (Burlington) interest in the Fruitland Coal
Formation underlying the Northeast Blanco Unit, Rio Arriba and San Juan
Counties, New Mexico, as listed in the accompanying tabulations. The Trust net
profits interest is derived from the Burlington interest in such proved
reserves. This report has been prepared using constant prices and costs and
conforms to the guidelines of the Securities and Exchange Commission (SEC).

     The estimated net proved reserves in this report are defined as the
portion of the gross reserves attributable to the Burlington interest to which
the net profits interest is applied. As presented in the accompanying summary
projection, Table 1, we estimate the Burlington net reserves and future net
revenue to the Trust net profits interest, as of January 1, 1998, to be:

<TABLE>
<CAPTION>

                         Burlington Net Reserves       Trust Future Net Revenue
                        -------------------------     --------------------------
                         Condensate        Gas                     Present Worth
    Category             (Barrels)        (MCF)          Total        at 10%
   ----------           ------------    ----------    -----------  -------------
<S>                         <C>         <C>           <C>           <C>
Proved Developed            0           73,786,292    $69,480,400   $42,413,400
</TABLE>

     Gas volumes are expressed in thousands of standard cubic feet (MCF) at the
contract temperature and pressure bases. These properties no longer produce
commercial volumes of condensate.

     This report includes a summary projection of reserves and revenue along
with one-line summaries of reserves, economics, and basic data by lease. For
the purposes of this report, the term "lease" refers to a single economic
projection.

     The estimate reserves and future revenue shown in this report are for
proved developed reserves only. Our study indicates that there are no proved
undeveloped reserves for these properties


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at this time. In accordance with SEC guidelines, our estimates do not include
any value for probable or possible reserves which may exist for these
properties. This report does not include any value which could be attributed to
interests in undeveloped acreage.

     Future gross revenue in this report is to the Burlington interest prior to
deducting state production taxes and ad valorem taxes. Future net revenue is the
95 percent net profits interest share to the Trust after deducting the
Burlington working interest share of these taxes, future capital costs, and
operating expenses, but before consideration of federal income taxes. Our
estimates of future net revenue have not been adjusted to account for the
Section 29 nonconventional fuels federal income tax credit. In accordance with
SEC guidelines, the future net revenue has been discounted at an annual rate of
10 percent to determine its "present worth." The present worth is shown to
indicate the effect of time on the value of money and should not be construed as
being the fair market value of the Trust net profits interest.

     For the purposes of this report, a field inspection of the properties has
not been performed nor has the mechanical operation or condition of the wells
and their related facilities been examined. We have not investigated possible
environmental liability related to the properties; therefore, our estimates do
not include any costs which may be incurred due to such possible liability.
Also, our estimates do not include any salvage value for the lease and well
equipment nor the cost of abandoning the properties.

     The gas price used in this report is based on the December 1997 net price
received, adjusted for BTU content, gathering fee, and shrinkage. This price is
also adjusted as specified in the gas purchase contract under provisions related
to the sharing price and price credit account and is held constant in accordance
with SEC guidelines.

     Lease and well operating costs are based on operating expense records
provided by Burlington. These costs include the per-well overhead expenses
allowed under joint operating agreements along with costs estimated to be
incurred at and below the district and field levels. General and administrative
overhead expenses of the Trustee are not included. Lease and well operating
costs are held constant in accordance with SEC guidelines. Capital costs are
included as required for workovers and production equipment.

     We have made no investigation of potential gas volume and value imbalances
which may have resulted from overdelivery or underdelivery to the Burlington
interest. Therefore, our estimates of reserves and future revenue do not include
adjustments for the settlement of any such imbalances; our projections are based
on Burlington receiving its net revenue interest share of estimated future gross
gas production.

     The reserves included in this report are estimates only and should not be
construed as exact quantities. They may or may not be recovered; if recovered,
the revenues therefrom and the costs related thereto could be more or less than
the estimated amounts. The sales rates, prices received for the reserves, and
costs incurred in recovering such reserves may vary from assumptions included in
this report due to governmental policies and uncertainties of supply and demand.
Also, estimates of reserves may increase or decrease as a result of future
operations.
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NSA  NETHERLAND SEWELL
     & ASSOCIATES, INC.
-----------------------

     In evaluating the information at our disposal concerning this report, we
have excluded from our consideration all matters as to which legal or
accounting, rather than engineering and geological, interpretation may be
controlling. As in all aspects of oil and gas evaluation, there are
uncertainties inherent in the interpretation of engineering and geological
data; therefore, our conclusions necessarily represent only informed
professional judgments.

     The titles to the properties have not been examined by Netherland, Sewell
& Associates, Inc., nor has the actual degree or type of interest owned been
independently confirmed. The data used in our estimates were obtained from
Burlington resources Oil & Gas Company and the nonconfidential files of
Netherland, Sewell & Associates, Inc. and were accepted as accurate. We are
independent petroleum engineers, geologists, and geophysicists; we do not own
an interest in these properties and are not employed on a contingent basis.
Basic geologic and field performance data together with our engineering work
sheets are maintained on file in our office.

                                                  Very truly yours,

                                                   /s/ FREDERIC D. SEWELL