SWIFT ENERGY MANAGED PENSION ASSETS PARTNERSHIP 1990-D LTD
DEF 14A, 1997-10-24
CRUDE PETROLEUM & NATURAL GAS
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                            SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
                                (Amendment No. )
[X]      Filed by the Registrant                                 
[ ]      Filed by a Party other than the Registrant
Check the appropriate box:
[ ]      Preliminary Proxy Statement                       
[ ]      Confidential, for Use of the Commission Only (as permitted by 
         Rule 14a-6(e)(2))
[X]      Definitive Proxy Statement
[ ]      Definitive Additional Materials
[ ]      Soliciting Material Pursuant to ss. 240.14a-11(c) or ss. 240.14a-12
          Swift Energy Managed Pension Assets Partnership 1990-D, Ltd.
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)
                              Swift Energy Company
- --------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):
[ ]      $125 per Exchange Act Rules  0-11(c)(1)(ii),  14a-6(i)(1),  14a-6(i)
         (2) or Item  22(a)(2) of  Schedule  14A.  
[ ]      $500 per each party to the  controversy pursuant to Exchange Act Rule
         14a-6(i)(4). 
[ ]      Fee computed on table below per Exchange Act Rules 14a-6(i)(4) 
         and 0-11.
         1) Title of each class of securities to which transaction applies:
  
         2) Aggregate number of securities to which transaction applies:

         3) Per unit  price  or other  underlying  value  of  transaction  
            computed pursuant to  Exchange  Act Rule 0-11 (set forth the amount
            on which the filing fee is  calculated  and state how it was  
            determined):  $15.46 - $21.11. Estimate based on estimated value of
            the underlying assets.

         4) Proposed maximum aggregate value of transaction:

         5) Total fee paid:

[X]      Fee paid previously with preliminary materials.
[ ]      Check box if any   part of the fee is offset as  provided  by  Exchange
         Act Rule  0-11(a)(2)  and identify the filing for which the  offsetting
         fee was paid previously.  Identify the previous filing by registration
         statement  number, or the Form or Schedule and the date of its filing.
          1) Amount Previously Paid:

          2) Form, Schedule or Registration Statement No.:

          3) Filing Party:

          4) Date Filed:
             

<PAGE>













                                October 15, 1997



Dear Limited Partner:

      Enclosed is a proxy  statement  and related  information  pertaining  to a
proposal to sell all of the Partnership's  properties and dissolve and liquidate
the  Partnership.  In order for the sale and liquidation to take place,  Limited
Partners  holding  at least  51% of the  outstanding  Units  must  approve  this
proposal.  It is important that you review the enclosed  materials before voting
on the proposal.  The Managing General Partner recommends that you vote in favor
of such sale and liquidation for a number of reasons. See "The Proposal--Reasons
for the Proposal" and "--Recommendation of the Managing General Partner."

      SWIFT ENERGY MANAGED PENSION ASSETS PARTNERSHIP  1990-D,  LTD. has been in
existence for almost seven years, and most of the properties  underlying its net
profits  interest were  purchased by early 1991. No capital is available for any
enhancement   activities  on  the  properties  in  which  the  Partnership  owns
non-operating interests or to produce the proved non-producing reserves on those
properties.  The Partnership's interest in proved producing reserves at December
31, 1996 was only 506,000 Mcfe.  Thus, even if oil and gas prices were unusually
high,  there would be little  impact upon the  Partnership's  ultimate  economic
performance.   See  "The   Proposal--Partnership   Financial   Performance   and
Condition."  To continue  operation of the  Partnership  means that  Partnership
direct and  administrative  expenses (such as costs of audits,  reserve reports,
and  Securities  and  Exchange  Commission  filings),  as  well  as the  cost of
operating  the  properties  in which  the  Partnership  owns an  interest,  will
continue  while revenues  continue to decrease,  which may decrease the ultimate
funds  available  for  Limited  Partners.   See  "The   Proposal--Estimates   of
Liquidating  Distribution  Amount."  Liquidation of the Partnership's  remaining
assets at this time will accelerate the receipt by the partners of the remaining
cash value of the Partnership.

      If  Limited  Partners  holding  at least  51% of the  Units  approve  this
proposal,  the Managing General Partner will attempt to complete the sale of all
Partnership properties by the end of the first quarter of 1998.

      Included  in  this  package  are  the  most  recent  financial  and  other
information prepared regarding the Partnership. If you need any further material
or have  questions  regarding  this  proposal,  please  feel free to contact the
Managing General Partner at (800) 777-2750.

      We urge you to complete your Proxy and return it immediately, as your vote
is  important in reaching a quorum  necessary to have an effective  vote on this
proposal.  Enclosed  is a  green  Proxy,  along  with  a  postage-paid  envelope
addressed to the Managing  General  Partner for your use in voting and returning
your Proxy. Thank you very much.

                                                     SWIFT ENERGY COMPANY,
                                                     Managing General Partner
                                                     /S/ A. Earl Swift
                                                     ------------------------
                                                     A. Earl Swift
                                                     Chairman


<PAGE>










          Swift Energy Managed Pension Assets Partnership 1990-D, Ltd.
                        16825 Northchase Drive, Suite 400
                              Houston, Texas 77060
                                 (281) 874-2700

                  NOTICE OF SPECIAL MEETING OF LIMITED PARTNERS
                          To be held November 25, 1997


      Notice is hereby given that a special meeting of limited partners of Swift
Energy Managed Pension Assets Partnership  1990-D, Ltd. (the "Partnership") will
be held at 16825 Northchase Drive, Houston, Texas, on Tuesday, November 25, 1997
at 4:00 p.m. Central Time to consider and vote upon:

   The adoption of a proposal for (a) sale of substantially all of the assets
   of the Partnership  (consisting of its net profits interest),  and (b) the
   dissolution,   winding  up  and  termination  of  the   Partnership   (the
   "Termination").  All asset  sales and the  Termination  comprise  a single
   proposal  (the  "Proposal"),  and a vote in  favor  of the  Proposal  will
   constitute a vote in favor of each of these matters.

      A record of limited  partners of the  Partnership has been taken as of the
close of business on October 15, 1997,  and only  limited  partners of record on
that date will be  entitled  to  notice  of and to vote at the  meeting,  or any
adjournment thereof.

      If you do not expect to be  present in person at the  meeting or prefer to
vote by proxy in advance,  please sign and date the enclosed proxy and return it
promptly in the enclosed  postage-paid envelope which has been provided for your
convenience.  The prompt  return of the proxy will  ensure a quorum and save the
Partnership the expense of further solicitation.

                                                     SWIFT ENERGY COMPANY,
                                                     Managing General Partner
                                                     /S/ John R. Alden
                                                     ------------------------

                                                     JOHN R. ALDEN
                                                     Secretary
October 15, 1997


<PAGE>



          Swift Energy Managed Pension Assets Partnership 1990-D, Ltd.
                        16825 Northchase Drive, Suite 400
                            Houston, Texas 77060-9468
                                 (281) 874-2700

                    ----------------------------------------

                                 PROXY STATEMENT

                    ----------------------------------------


                                     SUMMARY

General

      This Proxy  Statement is being provided by Swift Energy  Company,  a Texas
corporation  (the  "Managing  General  Partner") in its capacity as the Managing
General Partner of Swift Energy Managed Pension Assets Partnership  1990-D, Ltd.
a Texas limited partnership (the "Partnership"),  to holders of units of limited
partnership interests representing an initial investment of $100 per Unit in the
Partnership  (the  "Units").  This Proxy  Statement  and the enclosed  proxy are
provided  for  use at a  special  meeting  of  limited  partners  (the  "Limited
Partners"),  and any  adjournment of such meeting (the  "Meeting") to be held at
16825 Northchase  Drive,  Houston,  Texas, at 4:00 p.m. Central Time on Tuesday,
November  25,  1997.  The Meeting is called for the purpose of  considering  and
voting  upon a  proposal  to (a) sell  substantially  all of the  assets  of the
Partnership (consisting of its net profits interest),  and (b) dissolve, wind up
and terminate the Partnership (the "Proposal"), in accordance with the terms and
provisions of Article XVI of the  Partnership's  Limited  Partnership  Agreement
dated  December 31, 1990 (the  "Partnership  Agreement"),  and the Texas Revised
Limited Partnership Act (the "Texas Act"). This Proxy Statement and the enclosed
proxy are first being mailed to Limited Partners on or about October 21, 1997.

      Under Article XVI.C of the Partnership Agreement,  the affirmative vote of
Limited Partners holding at least 51% of the Units then held by Limited Partners
as of the Record Date (as  defined) is required  for  approval of the  Proposal.
Each Limited Partner  appearing on the  Partnership's  records as of October 15,
1997 (the "Record  Date"),  is entitled to notice of the Meeting and is entitled
to one vote for each Unit held by such Limited  Partner.  Under  Article XX.H of
the Partnership Agreement,  the General Partners may not vote any Units owned by
them  for  matters  such  as  the  Proposal.   VJM  Corporation,   a  California
corporation, the Special General Partner of the Partnership,  owns a 1% interest
in the Partnership as a General Partner, but owns no Units. The Managing General
Partner currently owns approximately 4.14% of all outstanding Units.  Therefore,
the  affirmative  vote of  holders  of at least  51% of the  remaining  Units is
required to approve the proposed sale.

Partnership Property Interests

      The working  interest in the producing oil and gas properties in which the
Partnership  owns a non-operating  interest is owned by an affiliated  companion
partnership,   Swift  Energy  Income  Partners  1990-D,   Ltd.  (the  "Operating
Partnership").  The Partnership's assets (the "Property Interests") consist of a
net profits  interest that covers multiple working  interests,  and which may be
divided  into  multiple  net  profits  interests  if the  Operating  Partnership
separately  sells  one or  more of its  working  interests  burdened  by the net
profits  interest.  Upon approval of the Proposal by the Limited  Partners,  the
Managing General Partner intends to sell  substantially all of the Partnership's


                                        1

<PAGE>



Property Interests,  together with the Operating Partnership's  workinginterests
in the same properties, in a sale or series of sales, use the proceeds to pay or
provide  for the  payment of  liabilities,  and then wind up the  affairs of the
Partnership.

      Neither  the  Managing  General  Partner  nor any of its  affiliates  will
purchase any of the Partnership's Property Interests at auction or in negotiated
transactions, although it is possible that if a Property Interest cannot be sold
to a third  party at auction or on a  negotiated  basis  (which  usually  occurs
because a property has no appreciable  value, often accompanied by the fact that
the property  requires  expenditures  to plug and abandon  wells) such  Property
Interests  may be conveyed to the  Managing  General  Partner or the  property's
operator for no  consideration  if necessary  to dispose of such  interest.  The
Managing General Partner is not currently aware of any Property  Interests owned
by the Partnership which are likely to be conveyed in this manner.

      The total PV-10  Value of the  Partnership's  reserves as of December  31,
1996 was $560,688.  During 1996,  approximately 78% of the Partnership's revenue
was  attributable  to natural  gas  production.  For more  information,  see the
attached Annual Report on Form 10-K for the year ended December 31, 1996 and the
Form 10-Q for the second quarter of 1997.

Method of Sale

   
      It is highly likely that the Property  Interests  will be sold in a series
of sales  rather than in a single  transaction.  All sales of the  Partnership's
Property  Interests  will  be  made  through  the  auction  process  or  through
negotiated  transactions to  unaffiliated  third parties.  The Managing  General
Partner  anticipates that most of the Partnership's  Property  Interests will be
sold at auction  (together  with the  working  interest  owned by the  Operating
Partnership)   conducted  by  the  Oil  &  Gas  Asset  Clearinghouse  (the  "O&G
Clearinghouse"),  or a  similar  company  engaged  in  auctions  of oil  and gas
properties, although some of the Partnership's Property Interests may be sold in
negotiated   transactions  with  third  parties.  See  "The  Proposal--Steps  to
Implement the Proposal--Negotiated  Sale." Other than certain Property Interests
to be  offered  at  auction in  October  1997 as  discussed  under  "Partnership
Property Interests" below, the Managing General Partner will not begin the sales
process  until the  Proposal  has been  approved  by the Limited  Partners.  The
Managing  General  Partner  is asking  for  approval  of the  Proposal  prior to
offering the Partnership's Property Interests for sale to avoid delay in selling
the Property Interests.  Furthermore,  as the Managing General Partner must sell
the Partnership's Property Interests in its oil and gas properties together with
the  working   interests  in  those  same  properties  owned  by  the  Operating
Partnership  and several other  partnerships  which it manages,  solicitation of
approval  of  each  purchase  offer  from  all  of  the  partnerships  would  be
impractical.
    

       It is possible,  though unlikely, that less than all of the Partnership's
Property  Interests  will be sold.  See "The  Proposal--Steps  to Implement  the
Proposal--Negotiated  Sale." The Managing  General Partner  anticipates that the
majority of sales will be made by the end of the first quarter of 1998. The sale
of Partnership  Property Interests that account for at least 662/3% of the total
value of the  Partnership  Property  Interests  will  cause the  Partnership  to
dissolve  automatically  under the terms of the  Partnership  Agreement  and the
Texas Act. Any Partnership  Property  Interests that are not sold at auction may
be sold pursuant to negotiated sales to third parties.

      Currently there are no buyers for the Property  Interests and the price at
which  they  will be sold  has not yet been  determined.  The  Managing  General
Partner  cannot  accurately  predict the prices at which the Property  Interests
ultimately   will  be  sold.   See  "The   Proposal--Estimates   of  Liquidating
Distribution  Amount."  In  addition  to the  foregoing,  there  are some  risks
involved in the Proposal. See "Risk Factors."


                                        2

<PAGE>



                         PARTNERSHIP PROPERTY INTERESTS

      The  chart  below  presents  information  on those  fields  in  which  the
Partnership  has a  Property  Interest  which  constitutes  10% or  more  of the
Partnership's  PV-10 Value at December 31, 1996. The information  below includes
the location of each field, the number of wells and  operator(s),  together with
information on the percentage of the Partnership's  total PV-10 Value ($560,688)
on December 31, 1996  attributable to each of these fields.  Information is also
provided  regarding  the  percentage  of the  Partnership's  production  for the
eighteen  months  ended June 30, 1997 on a  volumetric  basis from each of these
fields. On a volumetric basis, the percentage of the PV-10 Value at December 31,
1996 of these fields  attributable to natural gas ranged between 87.8% and 99.6%
and most of the  production  from  these  fields (in excess of 75% in every case
during the past eighteen months) has been natural gas.

      Of the  remaining  nine  fields in which the  Partnership  owns a Property
Interest,  three fields each  comprise less than 1% of the  Partnership's  PV-10
Value at  December  31, 1996 and the PV-10 Value of each of the other six fields
average 4.2% of the Partnership's PV-10 Value at the same date.

<TABLE>
<CAPTION>

                                                                Cody              Baker                             9
                                                Velrex          Bell              Ranch             Key           Other
                                                Field          Field              Field            Field         Fields
                                            -------------- -------------- --------------------- ------------  -------------
<S>                                           <C>            <C>               <C>                <C>           <C>                
                                              Schleicher     Schleicher        Schleicher         Wheeler       TX (26);
County and State                               County,        County,            County,          County,       LA (12);
                                                Texas          Texas              Texas            Texas         OK (3)
Number of Wells                                   14             4                  9                2             41
Operator                                                                        Swift and                       Swift and
                                                Swift          Swift            2 others           Swift        5 others

% of 12/31/96 PV-10 Value                       34.8%          14.3%              13.1%            11.7%          26.1%
% of  Production for 18 months                  21.7%           5.8%              12.3%            11.2%          49.0%
   ended 6/30/97 (Vol.)
</TABLE>


   
      The Partnership's  Property  Interests include interests in five fields in
Schleicher, Irion and Crockett Counties in the Permian Basin in West Texas which
the  Managing  General  Partner has  determined  to offer for sale at an auction
(along with interests in the same fields held by other  partnerships  managed by
the Managing General  Partner) which is to be held in Midland,  Texas on October
22,  1997.  Collectively,  the  Partnership's  interests  in these  five  fields
represent 23.5% of the Partnership's PV-10 Value at December 31, 1996, and 26.2%
of its production for the eighteen months ended June 30, 1997. Interests in only
two of the fields represent more than 2.0% of the Partnership's PV-10 Value: the
Partnership's  interest  in the  Ozona  Field in  Crockett  County  (7.8% of the
Partnership's  PV-10 Value at December  31,  1996) and its interest in the Baker
Ranch Field in  Schleicher  County  (13.1% of the  Partnership's  PV-10 Value at
December 31, 1996).  These interests are being offered for sale to third parties
at auction at this time in order to take  advantage  of an auction  focused upon
West Texas and New Mexico  Permian  Basin  properties  with buyers  specifically
interested  in  those  properties,  as O&G  Clearinghouse  auctions  are held in
Midland only once every six months.  All Property  Interests offered will have a
minimum bid amount.  Because there is no assurance that these Property Interests
will be sold at the auction,  the  presentation  of the  Partnership's  Property


                                        3

<PAGE>



Interests  above and the  estimates  of  liquidating  distributions  include the
Partnership's  interests in these fields. If these interests are sold,  proceeds
from such sale will either be included in the first liquidating  distribution or
sent to Limited Partners in an earlier distribution,  in the latter case whether
or not the Proposal is approved.
    


                             SPECIAL CONSIDERATIONS


Reasons for the Proposal

      Sale of the  Partnership's  assets and  liquidation of the Partnership are
being proposed for Limited Partner approval in an attempt to realize the highest
value for the Partnership's  Property  Interests.  The reasons for proposing the
sale of the  Partnership's  Property  Interests  at this time are  described  in
detail under "The Proposal--Reasons for the Proposal." In summary, these reasons
include:  (i) the reduced  levels of cash flow from the  Partnership's  Property
Interests,  which has resulted in cash  distributions  to Limited Partners since
January 1, 1996 of only  $62,300;  (ii) the  inherent  decline  in  hydrocarbons
produced by oil and gas wells over time in the  absence of any  further  capital
expenditures on the properties in which the Partnership has a Property Interest;
(iii) the  continuation  of certain fixed oil field overhead and operating costs
($27,665 in 1996) without regard to level of production;  and (iv) directs costs
(audits,  reserve reports,  partnership  filings) and general and administrative
costs  incurred  each year  ($52,307 in 1996).  Because of the  depletion of the
Partnership's  oil and gas reserves  (647,978 Mcfe at December 31, 1996,  78% of
which were proved  producing  reserves) and current low levels of cash flow, the
Managing General Partner believes that the  Partnership's  asset base and future
net revenues no longer justify the continuation of the Partnership's operations.
It is also the Managing General Partner's belief that improvements over the last
several years in the level of oil and gas prices, particularly those for natural
gas,  make this an  appropriate  time to consider the sale of the  Partnership's
Property  Interests,  and increase the likelihood of maximizing the value of the
Partnership's  assets,  although the level of future  prices cannot be predicted
with any  accuracy.  By selling  its  Property  Interests  and  liquidating  the
Partnerships,  future overhead,  direct and general and administrative costs can
be  avoided  and  the  receipt  of  the  value  of  the  Partnership's  reserves
accelerated  so that  such  funds  are  received  at one  time.  Such  sale  and
liquidation is viewed by the Managing General Partner as preferable to requiring
the periodic sale of a portion of its Property  Interests  over a long period of
time to pay the expenses of future operations and administration.

Fairness of the Proposal

   
      The  Managing  General  Partner  believes  that the  Proposal  to sell the
Partnership's  Property  Interests and liquidate is fair to Limited Partners for
several  reasons.  The Proposal must be approved by Limited  Partners holding at
least 51% of the Units,  without the Managing  General  Partner voting its 4.14%
limited partnership interest.  The Partnership's Property Interests will be sold
to the  highest  third-party  bidder at auction or to the third  party  which is
willing to purchase the interests for the highest price in a negotiated sale.

      Although  the  estimates  contained  under  "The   Proposal--Estimates  of
Liquidating Distribution Amount" above show that estimated cash distributions to
Limited  Partners  (based on net present value) from continued  operations  over
twenty  years  would  be   approximately   4.3%  higher  than   estimated   cash
distributions  from selling the  Partnership's  properties and  liquidating  the
Partnership at this time (based on the "high" range of estimates),  the Managing
General  Partner  believes  there is a  substantial  advantage in receiving  the
liquidating   distribution   in  one  lump  sum  currently.   The  estimates  of
distributions  from continued  operations are based upon current  prices.  It is
highly likely that over such a long period of time, oil and gas prices will vary


                                        4

<PAGE>



often and  possibly  widely  from the prices  used to prepare  these  estimates.
Continued operations over such a long period of time subject Limited Partners to
the risk of receiving lower levels of cash  distributions  if oil and gas prices
over this twenty year period are lower on average  than those used in  preparing
the  estimates  of  cash  distributions  from  continued  operations.  Continued
operations over twenty years subject Limited Partners'  potential  distributions
to the risks of price  volatility  and to possible  changes in costs or need for
workover or similar or significant  remedial work on the properties in which the
Partnership  owns  Property  Interests,  for which no capital is available  from
either the  Partnership  or its companion  Operating  Partnership.  The Managing
General  Partner also  believes  that there is an advantage to Limited  Partners
taking any funds to be received upon liquidation and redeploying those assets in
other  investments,  rather than continuing to receive small  distributions over
such a long  period  of  time.  See  "The  Proposal--Fairness  of the  Proposal;
Comparison of Sale Versus Continuing Operations."
    


            THE PROPOSAL INVOLVES CERTAIN RISKS. SEE "RISK FACTORS."


o     If the  Proposal  is  approved,  the  Limited  Partners  will  not have an
      opportunity to approve the specific  terms of any  particular  sale of the
      Property Interests.

o     Currently there are no buyers for the Property  Interests and the price at
      which they will be sold has not yet been determined.  The Managing General
      Partner  cannot  accurately  predict  the  prices  at which  the  Property
      Interests ultimately will be sold.

o     No minimum prices will be established for most of the Property  Interests,
      so there is no guarantee  that the Property  Interests  will be sold at or
      above their fair market value.

o     The sale of the Property Interests is dependent upon the simultaneous sale
      of the  Operating  Partnership's  interest  in the  same  properties.  The
      failure  of the  Operating  Partnership  to  approve  the  proposal  could
      significantly  adversely affect the likelihood of the sale of the Property
      Interests.

o     If the Proposal is adopted, although a final liquidating distribution is 
      anticipated, the amount thereof is not assured.  See "The Proposal--
      Estimates of Liquidating Distribution Amount."

      If the Proposal is not approved by Limited Partners holding 51% or more of
the Units held by Limited  Partners,  the Partnership will continue to exist. In
that event,  however,  due to the  expected  decline in  revenues,  the Managing
General Partner estimates that a portion of the Partnership's Property Interests
ranging from an average of 10% to 15% will need to be sold each year in order to
cover future direct costs, operating costs and administrative costs.


       LIMITED PARTNERS ARE URGED TO COMPLETE, SIGN AND DATE THE ENCLOSED
         PROXY AND TO RETURN IT TO THE MANAGING GENERAL PARTNER NO LATER
                             THAN NOVEMBER 15, 1997.


                                        5

<PAGE>



                                GLOSSARY OF TERMS


Btu means  British  Thermal  Unit,  which is a heating  equivalent  measure  for
natural gas.

Mcf means thousand cubic feet of natural gas.

Mcfe means  thousand cubic feet of natural gas  equivalent,  which is determined
using the ratio of one barrel of oil,  condensate  or natural gas liquids to six
Mcf of natural gas.

Mmbtu means million British Thermal Units, which is a heating equivalent measure
for natural gas.

Net Profits  Interest  means an interest in oil and gas property  which entitles
the owner to a specified  percentage  share of the Gross  Proceeds  generated by
such property, net of aggregate operating costs. Under the NP/OR Agreement,  the
Partnership  receives  a  Net  Profits  Interest  entitling  it  to a  specified
percentage  of the  aggregate  Gross  Proceeds  generated by, less the aggregate
operating  costs  attributable  to,  those  depths of all  Producing  Properties
acquired  pursuant to such agreement that are evaluated at the respective  dates
of acquisition to contain Proved  Reserves,  to the extent such depths  underlie
specified surface acreage.

NP/OR  Agreement means the form of Net Profits and Overriding  Royalty  Interest
Agreement  entered into  between the  Partnership  and an Operating  Partnership
pursuant to which the Partnership acquired a Net Profits Interest, or in certain
instances various Overriding Royalty Interests,  from the Operating  Partnership
in a group of  Producing  Properties.  The  Working  Interest  in such  group of
properties is held by the Operating Partnership.

PV-10 Value means the  estimated  future net  revenue to be  generated  from the
production  of proved  reserves  discounted  to  present  value  using an annual
discount rate of 10%; these amounts are  calculated net of estimated  production
costs and future  development  costs,  using  prices and costs in effect as of a
certain date,  without  escalation  and without  giving  effect to  non-property
related   expenses  such  as  debt   service,   future  income  tax  expense  or
depreciation, depletion and amortization.

Producing Properties means Properties (or interests in properties) producing oil
and gas in commercial  quantities,  or containing  shut-in wells capable of such
production,  or  properties  which are  acquired  as an  incidental  part of the
acquisition of such properties.  Producing  Properties  include  associated well
machinery and equipment,  gathering  systems,  storage  facilities or processing
installations or other equipment and property associated with the production and
field  processing of oil or gas.  Interests in Producing  Properties may include
Working Interests,  production payments,  Royalty Interests,  Overriding Royalty
Interest, Net Profits Interests,  and other non-operating  interests.  Producing
Properties may include gas gathering lines or pipelines. The geographical limits
of a  Producing  Property  may  be  enlarged  or  contracted  on  the  basis  of
subsequently  acquired  geological  data to define  the  productive  limits of a
reservoir,  or as a result of  action  by a  regulatory  agency  employing  such
criteria as the regulatory agency may determine.

Proved  Reserves means those  quantities of crude oil,  natural gas, and natural
gas liquids which,  upon analysis of geologic and engineering  data, appear with
reasonable  certainty  to be  recoverable  in the future  from known oil and gas
reservoirs under existing economic and operating conditions. Proved Reserves are
limited to those  quantities of oil and gas which can be reasonably  expected to


                                        6

<PAGE>



be  recoverable  commercially  at  current  prices  and  costs,  under  existing
regulatory  practices  and with  existing  conventional  equipment and operating
methods.

Royalty  Interest means a fractional  interest in the gross  production,  or the
gross proceeds therefrom,  of oil and gas and other minerals under a lease; free
of any expenses of exploration, development, operation and maintenance.

Working  Interest  means the  operating  interest  under an oil, gas and mineral
lease or other  property  interest  covering a specific tract or tracts of land.
The owner of a Working  Interest has the right to explore for, drill and produce
the oil, gas and other minerals covered by such lease or other property interest
and the obligation to bear the costs of exploration,  development,  operation or
maintenance applicable to that owner's interest.


                             VOTING ON THE PROPOSAL


Vote Required

      According  to the  terms of the  Partnership  Agreement,  approval  of the
Proposal  requires  the  affirmative  vote by the holders of at least 51% of the
Units held by Limited  Partners.  Therefore,  an abstention by a Limited Partner
will have the same effect as a vote against the Proposal.  This  solicitation is
being made for votes in favor of the Proposal  (which will result in liquidation
and  dissolution).  As of the Record Date,  28,089.79 Units were outstanding and
were held of record by 277 Limited  Partners  (excluding  the  Managing  General
Partner's  Units).  Each  Limited  Partner is entitled to one vote for each Unit
held in his  name on the  Record  Date.  Accordingly,  the  affirmative  vote of
holders of at least  14,325.79  Units is required to approve the  Proposal.  The
Managing General Partner holds 1,214 Units, but, in accordance with Article XX.H
of the  Partnership  Agreement,  the Managing  General  Partner may not vote its
Units. The Managing  General  Partner's  non-vote,  in contrast to abstention by
Limited Partners, will not affect the outcome,  because for purposes of adopting
the Proposal its Units are excluded from the total number of voting Units.

      The Limited  Partners  should be aware that once they approve the Proposal
pursuant to this Proxy Statement,  they will have no opportunity to evaluate the
actual  terms of any specific  purchase  offers for the  Partnership's  Property
Interests.  See "The Proposal --General" herein. See "The  Proposal--Reasons for
the  Proposal" and "The  Business of the  Partnership--Transactions  Between the
Managing General Partner and the Partnership."

Proxies; Revocation

      A sample of the form of proxy is  included  in this Proxy  Statement.  The
actual  proxy to be used to register  your vote on the  Proposal is the separate
green sheet of paper included with the Proxy Statement.
PLEASE USE THE GREEN PROXY TO VOTE UPON THE PROPOSAL.

      If a proxy is properly signed and is not revoked by a Limited Partner, the
Units it represents  will be voted in accordance  with the  instructions  of the
Limited Partner. If no specific  instructions are given, the Units will be voted
FOR the Proposal.  A Limited  Partner may revoke his proxy at any time before it
is voted at the Meeting.  Any Limited Partner who attends the Meeting and wishes
to vote in person  may  revoke  his  proxy at that  time.  Otherwise,  a Limited


                                        7

<PAGE>



Partner must advise the Managing  General  Partner of  revocation of hisproxy in
writing,  which  revocation must be received by the Managing  General Partner at
16825  Northchase  Drive,  Suite 400,  Houston Texas 77060 prior to the time the
vote is taken.

No Appraisal or Dissenters' Rights Provided

      In connection  with the proposal to sell  substantially  all of its assets
and  liquidate  the  Partnership,  Limited  Partners  are  not  entitled  to any
dissenters' or appraisal  rights such as would be available to shareholders in a
corporation  engaging in a merger.  Dissenting  Limited  Partners are  protected
under state law by virtue of the fiduciary duty of general  partners to act with
prudence in the business affairs of the Partnership.

Solicitation

      The  solicitation is being made by the  Partnership.  The Partnership will
bear  the  costs  of  the  preparation  of  this  Proxy  Statement  and  of  the
solicitation  of proxies  and such costs will be  allocated  90% to the  Limited
Partners  and  10% to  the  General  Partners  with  respect  to  their  general
partnership  interests pursuant to Article  VIII.A(iv).  As the Managing General
Partner  holds  approximately  4.14% of the Units held by all Limited  Partners,
4.14% of the costs borne by the Limited  Partners  will be borne by the Managing
General  Partner,  in  addition  to its  portion  borne  as a  General  Partner.
Solicitations  will be made primarily by mail. In addition to  solicitations  by
mail,  a number of regular  employees of the  Managing  General  Partner may, if
necessary  to ensure the presence of a quorum,  solicit  proxies in person or by
telephone.  The Managing  General  Partner also may retain a proxy  solicitor to
assist in  contacting  brokers or Limited  Partners to  encourage  the return of
proxies,  although  it does not  anticipate  doing so.  The costs of this  proxy
solicitation,  including  legal and accounting  fees and expenses,  printing and
mailing costs, and related costs are estimated to be approximately $20,000.


                                  RISK FACTORS


      A Limited  Partner  considering  whether to vote in favor of the  Proposal
should  give  careful  consideration  to the  risks  involved,  including  those
summarized below:

Uncertainty of Liquidating Distributions

      While the Managing General Partner is not aware of any unknown liabilities
at this time,  should any unexpected  liabilities  come to light prior to making
the final liquidating distribution, such liabilities could significantly reduce,
or eliminate altogether, such final distribution.

Undetermined Sales Prices; Volatility of Oil and Gas Prices

      Limited  Partners  will not have an  opportunity  to approve the  specific
terms of any particular  sale of the Property  Interests and  anticipated  sales
prices for the  Property  Interests  may not be  achieved.  Should  domestic gas
prices  strengthen  after  the sales of the  assets,  it is  possible  that more
advantageous sales prices for the properties might have been realized at a later
date.


                                        8

<PAGE>



Dependence on Operating Partnership

      If the  Partnership  approves the proposal to sell its Property  Interests
but the  Operating  Partnership  does  not  approve  the  sale  of its  Property
Interests  and  actually  sell its  interests in the same  properties,  then the
Partnership will be forced to sell its net profits interest as a single property
(or undivided  interests  therein).  The  purchaser or purchasers  would have no
control  as working  interest  owners,  as the  working  interest  will still be
retained  by the  Operating  Partnership.  If this lack of control  prevents  an
economic sale to a third party of the Partnership's Property Interests, then the
Managing General Partner will obtain a third party independent  appraisal of the
Partnership's Property Interests from J.R. Butler and Company of Houston, Texas,
and purchase those  properties  itself for the appraised price.  Therefore,  the
likelihood of sale of the Partnership's Property Interests will be significantly
affected  by  the  ability  of  the  Partnership  and  its  companion  Operating
Partnership to sell their ownership  interests in the same properties  together,
which in turn is  dependent  upon  approval  of the  proposal  being made to the
Partnership and the similar proposal being made  simultaneously to the companion
Operating  Partnership.  Failure to approve the  proposal by either  partnership
could  significantly  adversely  affect  the  sale of  properties  by the  other
partnership.    See   "The   Proposal--Simultaneous    Proposal   to   Operating
Partnerships."

Prices Used for Calculation of PV-10 Value of Proved Reserves

      The PV-10  Value of the  Partnership's  proved oil and gas  reserves  upon
which the estimates of the range of  liquidating  distributions  have been based
were calculated  using an estimate of 1997 average prices without any escalation
of $2.25 per MMBTU.  These  estimated  prices were based upon pricing  scenarios
determined  by the  Managing  General  Partner  and are not  the  same as  those
mandated by the  Securities  and Exchange  Commission  for reserves  disclosures
under  applicable SEC Rules,  which require use of prices at year-end,  although
the discount rate and lack of escalation  are the same. If estimates of reserves
and future net revenues had been  prepared  using  December 31, 1996 prices,  as
mandated by the SEC, reserves, future net revenues and the present value thereof
would have been  significantly  higher.  These higher  prices have not been used
because  of the fall in prices  since  year-end  1996 and the  Managing  General
Partner's  determination  that reserve  estimates using 1997 average prices more
accurately  reflect values likely to be received upon sale of the  Partnership's
Property Interests within the next six months than estimates based upon year-end
1996 prices.  If this assumption is incorrect or prices increase  rapidly at the
end of 1997 or the beginning of 1998, the estimates of the  Partnership's  PV-10
Value and proceeds  receivable  upon  liquidation of its Property  Interests are
likely to be too low.


                                  THE PROPOSAL


General

      The Managing  General  Partner has  proposed  that the  Partnership's  net
profits  interest be sold,  the  Partnership  be dissolved and that the Managing
General Partner,  acting as liquidator,  wind up the  Partnership's  affairs and
make final distributions to its partners.  The Partnership's assets consist of a
net profits  interest in producing  oil and gas  properties in which the working
interest is owned by an  affiliated  partnership  also  managed by the  Managing
General Partner and formed at approximately the same time as the Partnership was
organized. The Partnership's non-operating net profits interest exists by virtue
of a Net Profits and Overriding Royalty Interest  Agreement ("NP/OR  Agreement")
dated  December 31, 1990 with Swift Energy  Income  Partners  1990-D,  Ltd. (the


                                        9

<PAGE>



"Operating  Partnership").  The  NP/OR  Agreement  gives the  Partnership  a net
profits  interest  in a group of  producing  properties  in which the  Operating
Partnership owns the working interests,  and entitles the Partnership to receive
a portion of the net profits from operation of the group of producing properties
owned by the Operating Partnership which are subject to the NP/OR Agreement. The
net  profits  percentage  to which the  Partnership  is entitled is based upon a
percentage of the gross proceeds (reduced by certain costs) from the sale of oil
and gas production from these properties.

      The Managing  General  Partner  intends to sell most of the  Partnership's
Property  Interests  through  auction  conducted by the O&G  Clearinghouse  or a
similar company,  although some of the Partnership's Property Interests might be
sold to third parties in negotiated  transactions.  The Managing General Partner
expects to sell all properties not sold by auction  pursuant to negotiated sales
conducted by the Managing General Partner or a third party engaged to dispose of
the  Partnership's  assets.  The Partnership,  if not terminated  earlier,  will
terminate automatically,  pursuant to the terms of the Partnership Agreement, on
January 1, 2021.

      The Managing General Partner is an independent oil and gas company engaged
in the  exploration,  development,  acquisition  and  operation  of oil  and gas
properties,   both   directly  and  through   partnership   and  joint   venture
arrangements,  and  therefore  holds  various  interests in numerous oil and gas
properties.  Furthermore,  the Managing  General Partner is the managing general
partner of a number of oil and gas partnerships.

Partnership Financial Performance and Condition

      The Partnership owns non-operating Property Interests in producing oil and
gas  properties  within  the  continental   United  States  in  which  Operating
Partnerships  managed by the Managing General Partner own the working interests.
By the end of 1991 the  Partnership  had expended  all of its  original  capital
contributions  for the purchase of a Property  Interest in oil and gas producing
properties.  During  1996  approximately  78% of the  Partnership's  revenue was
attributable to natural gas production. The Operating Partnership has, from time
to time, performed workovers and recompletions of wells in which the Partnership
has Property Interests,  using funds advanced by the Managing General Partner to
perform  these  operations,  a portion of which  amounts  has been  subsequently
repaid from production.

      The  Limited  Partners  have  made  contributions  of  $2,930,379  in  the
aggregate  to the  Partnership.  The Managing  General  Partner has made capital
contributions  with  respect to its  general  partnership  interest  of $23,340.
Additionally,  pursuant to the  presentment  right set forth in Article XVIII of
the Partnership Agreement, it purchased 1,214 Units from Limited Partners.

      From inception  through  January 31, 1997, the  Partnership  has made cash
distributions to its Limited Partners totaling  $1,391,400.  Through January 31,
1997,  the Managing  General  Partner has received cash  distributions  from the
Partnership of $129,299 with respect to its general  partnership  interest,  and
distributions of $5,202 related to its limited partnership  interests.  On a per
Unit basis,  Limited Partners had received,  as of January 31, 1997,  $47.48 per
$100 Unit, or approximately 47.48% of their initial capital contributions.

      The Partnership acquired its Property Interests at a time when oil and gas
prices and industry  projections of future prices were much higher than actually
occurred  in  subsequent  years.  As  detailed  in  the  Designated   Properties
Supplement dated October 18, 1990 regarding Property Interests to be acquired by
the Partnership,  when the Managing General Partner projected future oil and gas
prices to evaluate the economic  viability  of an  acquisition,  it compared its
forecasts  with  those made by banks,  oil and gas  industry  sources,  the U.S.
government,  and other companies  acquiring  producing  properties.  Acquisition
decisions for the Partnership were based upon a range of increasing  prices that


                                       10

<PAGE>



were within the  mainstream of the forecasts made by these outside  parties.  At
the time that the Partnership's Property Interests covering producing properties
were acquired,  prices averaged about $22.88 per barrel of oil and $2.15 per Mcf
of natural gas. Oil and gas prices were expected to escalate  during  subsequent
years of the Partnership's  operations.  In general, in 1990 and early 1991, all
of these sources forecasted increases in product prices that were based upon oil
and gas prices at the time,  which  reflected  the invasion of Kuwait by Iraq in
the summer of 1990 and the  commencement of hostilities in the Gulf War in 1991.
The majority of the  Partnership's  Property  Interests were acquired during the
fourth  quarter of 1990 and the first  quarter of 1991 when current  prices were
predicted to escalate  according to certain parameters from that level. Thus the
majority of properties were bought upon an evaluated  weighted  average price of
$2.15 per Mcf.  The  predicted  price  increases  did not occur and prices  fell
precipitously  from 1991 to 1992.  The bulk of the  Partnership's  reserves were
produced from 1991-1995 during which time the  Partnership's  oil prices in fact
averaged $16.37 per barrel and natural gas prices averaged  approximately  $1.75
per Mcf.

      The  following  graphs  illustrate  the above  factors with respect to gas
revenues only, due to the fact that a substantial  majority of the Partnership's
production  to date has been natural  gas,  the bulk of which has been  produced
during the years when gas prices were the lowest.

   Comparison of Gas Prices Expected in 1991 to Gas Prices Actually Received
          Swift Energy Managed Pension Assets Partnership 1990-D, Ltd.

                                     PRICE PER MCF OF GAS
                 YEAR              ACTUAL          EXPECTED
                 ----              ------          --------
                 1991              $1.61             $2.38
                 1992              $1.82             $2.84
                 1993              $1.97             $3.39
                 1994              $1.92             $3.59
                 1995              $1.46             $3.81
                 1996              $2.05             $4.04


                                       11

<PAGE>



                 Amounts of Production to Date Produced by Year
          Swift Energy Managed Pension Asset Partnership 1990-D, Ltd.

                             YEAR           MCFE
                            ------         ------
                             1991          458,982
                             1992          342,701
                             1993          259,909
                             1994          225,786
                             1995          177,070
                             1996          150,063

      Lower  prices also had an effect on the  Partnership's  interest in proved
reserves.  Estimates  of proved  reserves  represent  quantities  of oil and gas
which,  upon analysis of engineering  and geologic data,  appear with reasonable
certainty  to be  recoverable  in the future  from known oil and gas  reservoirs
under  existing  economic and operating  conditions.  When economic or operating
conditions  change,  proved reserves can be revised either up or down. If prices
had  risen  as  predicted,  the  volumes  of  oil  and  gas  reserves  that  are
economically  recoverable  might  have  been  higher  than the  year-end  levels
actually reported because higher prices typically extend the life of reserves as
production  rates from mature wells  remain  economical  for a longer  period of
time. Production  enhancement projects that are not economically feasible at low
prices can also be implemented as prices rise. At present,  because of the small
remaining  amount  of  reserves,  further  price  increases  would  not  have  a
significant impact on the Partnership's performance.

      As required by the Partnership Agreement,  the Partnership expended all of
the partners' net commitments available for property acquisitions many years ago
to acquire  Property  Interests in  producing  oil and gas  properties.  The net
profits paid by the Operating  Partnership to the Partnership  have been reduced
by amounts used by the Operating  Partnership  to pay operating and  enhancement
costs.  These costs  relate to the working  interests  that were  subject to the
Partnership's  net  profits  interest.  The  Managing  General  Partner  of  the
Operating  Partnership  advanced  most of these costs  because it felt that such
expenditures would increase the value of the properties in which the Partnership
and the Operating  Partnership have an interest.  The Partnership's  partnership
agreement does not allow additional assessments to be made against any Limited

                                       12

<PAGE>



Partners.  No material funds are available at the current time from  Partnership
revenues or other sources to enable the Partnership to make  additional  capital
expenditures and no new capital  expenditures are planned.  The Managing General
Partner  anticipates that if sales of the Partnership's  properties occur, there
will be sufficient cash generated by the sales of the  Partnership's  properties
to make a final liquidating distribution.

Estimates of Liquidating Distribution Amount

      It is not possible to accurately  predict the prices at which the Property
Interests  will be sold.  The  sales  price  of the  Partnership's  net  profits
interest or possibly  multiple  net profits  interests  may vary.  In the latter
case,  certain Property Interests might sell for a higher price and others for a
lower price than those  estimated  below.  The  projected  range of sales prices
below has been based upon  estimated  future net revenues for the  Partnership's
Property  Interests,  using an  estimate  of 1997  average  prices  without  any
escalation of $2.25 per Mmbtu. The "high" range of estimated  distributions from
liquidation  is based upon estimated  future net revenues  discounted to present
value at 10% per annum. The "low" range is 70% of the "high" range estimate. The
1997 price estimate grew out of the pricing scenarios determined by the Managing
General Partner,  which scenarios are used in various  circumstances,  including
economic  modeling  of  partnership  returns and  evaluating  the  economics  of
property sales or property  acquisitions for the Managing General Partner or for
partnerships managed by the Managing General Partner.  These pricing assumptions
vary from those mandated by the Securities and Exchange  Commission  ("SEC") for
reserves  disclosures under applicable SEC rules, which require use of prices at
year-end,  although the discount  rate and lack of  escalation  are the same. If
estimates of reserves and future net revenues had been prepared  using  December
31, 1996 prices, as mandated by the SEC,  reserves,  future net revenues and the
present  value  thereof  would be  significantly  higher.  The Managing  General
Partner has determined not to use these higher prices because these estimates of
1997 average  prices more  accurately  reflect  prices  purchasers of properties
currently are willing to pay, rather than higher values which do not reflect the
decrease in prices since year-end 1996. For example,  the weighted average price
of gas  received by the  Partnership  for the first six months of 1997 was $2.36
per Mcf as  compared  to $4.68  per Mcf at  December  31,  1996.  On July 1, the
Managing  General  Partner's  estimated  weighted  average  price of gas for the
remainder of 1997 was $2.58 per Mcf.

      Set  forth  in the  table  below  are  estimated  net  proceeds  that  the
Partnership may realize from sales of the  Partnership's  properties,  estimated
expenses of the related dissolution and liquidation of the Partnership,  and the
estimated amount of net distributions available for Limited Partners as a result
of such sales.

           Range of Limited Partners' Share of Estimated Distributions
                  from Property Interest Sales and Liquidation

                                                          Projected Range
                                                          ---------------
                                                  Low                    High
                                                 -------               --------
Net Sales Proceeds(1)                           $471,000              $636,500
Partnership Dissolution Expenses(2)              (18,000)              (18,000)
                                                 --------              --------
Net Distributions payable to Limited Partners   $453,000               $618,500
                                                 ========              ======== 
Net Distributions per $100 Unit                   $15.46                 $21.11
                                                  ======                 ======

- ------------

(1)   Includes cash and net receivables and payables of the Partnership, net of
      selling expenses estimated to be 7% of sales proceeds.
(2)   Includes  Limited  Partners' share of all costs  associated with 
      dissolution and liquidation of the Partnership.


                                       13

<PAGE>



      If,  on the other  hand,  the  Partnership  were to  retain  its  Property
Interests and continue to produce those properties  until  depletion,  the table
below  estimates the return to Limited  Partners,  discounted to present  value,
based upon the same pricing and discount  assumptions  used above. The estimates
of the present value of future net  distributions  have been further  reduced by
continuing audit, tax return preparation and reserve engineering fees associated
with continued operations of the Partnership,  along with direct and general and
administrative  expenses  estimated to occur during this time. Such estimates do
not take  into  account  any sale of a  portion  of the  Partnership's  Property
Interests  necessary  in order  to  generate  sufficient  cash  proceeds  to pay
general,  administrative and operating expenses, which would reduce the revenues
of the Partnership. Moreover, the following estimated future net revenues do not
take into account any costs which might be incurred by the Operating Partnership
due  to  needed  future  maintenance  or  remedial  work  on  the  Partnership's
properties.

                      Estimated Share of Limited Partners'
                   Net Distributions from Continued Operations

                                                                   Projected
                                                                   Cash Flows
                                                                   -----------
Future Net Revenues from Net Profits Interest (over 20 years)(1)   $ 1,022,500
Partnership Direct and Administrative Expenses(2)                      (64,700)
                                                                   ----------- 
Net Distributions to Limited Partners (payable over 20 years)(3)   $   957,800
                                                                   ===========

Net Distributions per $100 Unit(4)                                     $ 32.69
Present Value of Net Distributions per $100 Unit(5)                    $ 22.02

- ------------

(1)   Includes cash and net receivables and payables of the Partnership. Limited
      Partners'  future  net  revenues  are based on the  reserve  estimates  at
      December 31, 1996 assuming unescalated prices based on predictions of 1997
      average prices. To a limited extent, future net revenues may be influenced
      by a material  change in the  selling  prices of oil or gas.  For  further
      discussion of this,  see  "--Reasons  for the Proposal." The actual prices
      that will be received  and the  associated  costs may be more or less than
      those projected. See "--Partnership Financial Condition and Performance."
(2)   Includes Limited Partners' share of general and administrative expenses, 
      and audit, tax, and reserve engineering fees.
(3)   Based upon the  Partnership's  reserves  having a  projected  20-year  
      life, assuming flat pricing.
(4)   Does  not  reflect  effect  of  intermittent  sales  of a  portion  of the
      Partnership's  Property  Interests  to pay  administrative  costs once the
      properties no longer generate sufficient revenues to cover such costs. The
      Managing General Partner estimates that Property Interests ranging from an
      average of 10% to 15% of the value of the  Partnership's  properties would
      have to be sold each year to cover such costs.
(5)   Discounted at 10% per annum.

      Among  factors  which can affect the  ultimate  sales price  received  for
Partnership Property Interests are the following:

      (1) The  above  cases  presume  that  100% of the  Partnership's  Property
          Interests  will  be  sold.  
      (2) In  certain  instances,  the  Partnership, together with the other 
          partnerships which will be offering their interests in the properties 
          in which the Partnership owns Property  Interests,  will  own a large
          enough interest in the properties  to allow the purchaser to designate
          a new operator of the properties, which normally increases the amount
          that a purchaser is willing to pay.

                                       14
<PAGE>



      (3) Changes  in the  market  for  gas or oil  may  affect  the  pricing
          assumptions  used by purchasers in  evaluating  property  value and
          possible purchase prices.
      (4) Different  evaluations  of the amount of money required to be spent
          to enhance or maintain  production  may have a  significant  effect
          upon the ultimate purchase price.
      (5) In certain instances,  the Managing General Partner may set minimum
          bidding prices for those properties  offered at auction,  which may
          not be met.
      (6) The  Managing  General  Partner may choose to package  certain less
          attractive  properties  together with other  properties in order to
          enhance the likelihood of their sale.  Such packaging  could result
          in a significant discount by prospective purchasers of the value of
          the  Partnership's  more  productive  properties  contained in such
          packages.

   
      The Partnership  Agreement authorizes the Managing General Partner to sell
the Partnership  Property Interests at a price that the Managing General Partner
deems  reasonable.  The  proceeds  of all  sales,  to the extent  available  for
distribution,  are to be  distributed  to the Limited  Partners  and the General
Partners in accordance  with Article  XVI.E of the  Partnership  Agreement.  The
amounts finally  distributed will depend on the actual sales prices received for
the  Partnership  assets,  results  of  operations  until  such  sales and other
contingencies and circumstances.
    

Fairness of the Proposal; Comparison of Sale Versus Continuing Operations

      Based on the above tables,  it is estimated  that a Limited  Partner could
expect to receive from $15.46 to $21.11 per $100 Unit upon immediate sale of the
Partnership  Property Interests.  In comparison,  it is estimated that a Limited
Partner could expect to receive  approximately $22.02 per $100 Unit,  discounted
to present value ($32.69 per $100 Unit over 20 years on an  undiscounted  basis)
if the Partnership continued operations.

      Although  the  estimates  contained  under  "The   Proposal--Estimates  of
Liquidating Distribution Amount" above show that estimated cash distributions to
Limited  Partners  (based on net present value) from continued  operations  over
twenty  years  would  be   approximately   4.3%  higher  than   estimated   cash
distributions  from selling the  Partnership's  properties and  liquidating  the
Partnership at this time (based on the "high" range of estimates),  the Managing
General  Partner  believes  there is a  substantial  advantage in receiving  the
liquidating   distribution   in  one  lump  sum  currently.   The  estimates  of
distributions  from continued  operations are based upon current  prices.  It is
highly likely that over such a long period of time, oil and gas prices will vary
often and  possibly  widely  from the prices  used to prepare  these  estimates.
Continued operations over such a long period of time subject Limited Partners to
the risk of receiving lower levels of cash  distributions  if oil and gas prices
over this twenty year period are lower on average  than those used in  preparing
the  estimates  of  cash  distributions  from  continued  operations.  Continued
operations over twenty years subject Limited Partners'  potential  distributions
to the risks of price  volatility  and to possible  changes in costs or need for
workover or similar  significant  remedial  work on the  properties in which the
Partnership  owns  Property  Interests,  for which no capital is available  from
either the  Partnership  or its  companion  Partnership.  The  Managing  General
Partner also believes that there is an advantage to Limited  Partners taking any
funds to be received  upon  liquidation  and  redeploying  those assets in other
investments,  rather than continuing to receive small  distributions over such a
long period of time.

      Such estimates are based on December 31, 1996 reserve  estimates  assuming
unescalated pricing throughout the remaining life of the properties in which the
Partnership  owns an interest.  The actual  prices that will be received and the
associated  costs may be more or less than those  projected.  See "--Estimate of
Liquidating Distribution Amount."


                                       15

<PAGE>



Reasons for the Proposal

      The Managing  General Partner  believes that it is in the best interest of
the  Partnership  and the  Limited  Partners  for the  Partnership  to sell  its
properties  at this  time  and to  dissolve  the  Partnership  and  make a final
liquidating cash distribution to its partners for the reasons discussed below.

      Potential  Liquidating  Distribution.  After the sale of the Partnership's
Property   Interests,   there  will  be  funds   available   for  a  liquidating
distribution. As discussed above, the Managing General Partner believes that the
ability  to  receive  the  estimated  liquidating  distribution  in one lump sum
currently,  rather than in smaller amounts over a 20 year period,  is one of the
benefits  of the  Proposal,  without  the  continuing  risk  of  such  potential
distributions being negatively  affected by oil and gas price decreases.  A vote
in favor of the proposal thus might have the effect of making  additional  funds
currently available to the Limited Partners.

      Small Amount of Remaining  Assets in Relation to Expenses.  As of December
31, 1996,  approximately 72% of the Partnership's  ultimate recoverable reserves
had been produced, and the Limited Partners' share of the Partnership's interest
in  remaining   reserves  is  estimated  to  be  less  than  648,000  Mcfe.  The
Partnership's  oil and gas  reserves  are  expected  to  continue  to decline as
remaining reserves are produced.  Distributions to partners in recent years have
declined  and  are  not  expected  to  increase  appreciably.  Declines  in well
production are based  principally  upon the maturity of the wells, not on market
factors.  Each producing well requires a certain  amount of overhead  costs,  as
operating and other costs are incurred  regardless  of the level of  production.
Likewise,  direct  costs  and/or  general and  administrative  expenses  such as
compliance with the securities  laws,  producing  reports to partners and filing
partnership tax returns do not decline as revenues  decline.  As a result of the
depletion  of the  Partnership's  oil and gas  reserves,  the  Managing  General
Partner believes the Partnership's  asset base and future net revenues no longer
justify the  continuation  of  operations.  Consequently,  the Managing  General
Partner expects that the Partnership will have to start selling a portion of its
Property  Interests to pay the expense of future operations and  administration.
By accelerating the liquidation of the Partnership,  those future administrative
costs  can be  avoided  and the  receipt  of the  remaining  cash  value  of the
interests of the Limited Partners in the Partnership can be accelerated.

      Effect of Gas Prices on Value.  The Managing General Partner believes that
the key factor affecting the  Partnership's  long-term  performance has been the
decrease in oil and gas prices that  occurred  subsequent to the purchase of the
Partnership's properties.  Additionally, prices are expected to continue to vary
widely  over the  remaining  life of the  Partnership,  and such  changes in gas
prices will affect future estimates of revenues from continued operations of the
Partnership.  Based on 1996 year-end reserve  calculations,  the Partnership had
only  about  28% of its  ultimate  recoverable  reserves  remaining  for  future
production.  Because of this small amount of remaining reserves, even if oil and
gas prices were to increase in the future,  such increases  would be unlikely to
have a  material  positive  impact on the  total  return  on  investment  to the
partners in view of the expenses of the Partnership as described above.

      Potential  of  the  Properties.   Recovery  in  amounts  great  enough  to
significantly  impact  the  results  of the  Partnership's  operations  and  the
ultimate cash  distributions  can only occur with the investment of new capital.
As provided in the Partnership  Agreement,  the Partnership  expended all of the
partners' net commitments  for the acquisition of Property  Interests many years
ago,  and it no longer has capital to invest in  improvement  of the  properties
through secondary or tertiary recovery. No additional development activities are
contemplated  by the  Operating  Partnership  on the  properties  in  which  the
Partnership has a non-operating interest.

      Limited Partners' Tax Reporting.  Limited Partners will continue to have a
partnership income tax reporting  obligation with respect to their Units as long


                                       16

<PAGE>



as the Partnership  continues to exist. There is notrading market for the Units,
so Limited  Partners  generally  are unable to dispose of their  interests.  See
"Business of the Partnership--No  Trading Market." Following the approval of the
Proposal, the sale of the properties and dissolution,  the Limited Partners will
realize gain or loss or a combination of both under the federal income tax laws.
Thereafter, Limited Partners will have no further tax reporting obligations with
respect to the  Partnership.  The dissolution of the Partnership will also allow
Limited Partners to take a capital loss deduction for syndication costs incurred
in  connection  with  formation  of the  Partnership.  See  "Federal  Income Tax
Consequences."

Simultaneous Proposal to Operating Partnership

      Simultaneously with this proposal to the Partnership's Limited Partners to
sell all of its  Property  Interests,  a similar  proposal  is being made to the
limited partners of the companion  Operating  Partnership which owns the working
interest in the same  properties in which the  Partnership  owns a non-operating
interest.  If both Partnerships approve the proposal,  then the working interest
and non-operating interest will be sold simultaneously.

      If the  Partnership  approves  the proposal  but its  companion  Operating
Partnership does not, then the Managing General Partner will attempt to sell the
Non-Operating Interest owned by the Partnership to a third party. If no economic
sale can be made to a third  party,  which may occur  due to the  difficulty  in
selling a net  profits  interest  in a  property  when  operating  and  spending
decisions are controlled by another  entity,  then the Managing  General Partner
will get a third  party  appraisal  of the value of the  Partnership's  Property
Interests and will purchase the Partnership's non-operating interests itself for
the highest price for which the Property  Interests are appraised.  The Managing
General Partner intends to obtain any such fair market value appraisal from J.R.
Butler and Company.

      If the  Partnership  does  not  approve  the  proposal  but its  companion
Operating  Partnership  approves the proposal to sell its  properties,  then the
Operating  Partnership  will be  forced  to sell its  working  interests  in its
properties  subject to the net profits  interest owned by the Partnership  which
burdens the Operating Partnership's properties.  This may affect the saleability
of the Operating Partnership's  properties due to the burden on cash flow caused
by the  existence  of the  Partnership's  net profits  interest.  If this burden
prevents an economic sale to a third party,  then the Managing  General  Partner
will obtain an independent fair market appraisal of the Operating  Partnership's
properties  from J.R.  Butler and Company and purchase those Property  Interests
itself for the highest price for which such interests are appraised.

      Therefore the likelihood of sale of the Partnership's  Property  Interests
will  be  significantly  affected  by the  ability  of the  Partnership  and its
companion  Operating  Partnership to sell their ownership  interests in the same
properties  at  approximately  the same time,  which in turn is  dependent  upon
approval of the proposal being made to the Partnership and the similar  proposal
being made  simultaneously to the companion  Operating  Partnership.  Failure to
approve the proposal by either partnership could significantly  adversely affect
the sale of properties by the other partnership to the NP/OR Agreement.

Steps to Implement the Proposal

      Following  the  approval of the  Proposal,  the Managing  General  Partner
intends to take the following steps to implement it:


                                       17

<PAGE>



      1.        Make  available to the  appropriate  persons (that is, the third
                party, if any,  handling the negotiated sales and/or the auction
                house and prospective purchasers) the following types of data:

         o      Engineering and Geological Data
                -      Production curve
                -      Completion report
                -      Historical production data
                -      Engineering well files
                -      Geological maps (if available)
                -      Logs (if available)

         o      Land/Legal Data
                -      Net Profits Interest schedule for all properties
                -      Land files
                -      Payout data

         o      Accounting Data
                -      Lease operating statements by well
                -      Gas marketing data
                -      Oil marketing data
                -      Gas balancing data

      2.        Pay or provide for payment of the Partnership's  liabilities and
                obligations to creditors,  if any, using the Partnership's  cash
                on hand and proceeds from the sale of Partnership properties;

      3.        Conduct a final  accounting and distribute any remaining cash to
                the  partners  of  the   Partnership  in  accordance   with  the
                Partnership Agreement;

      4.        Cause final  Partnership  tax  returns to be prepared  and filed
                with the Internal  Revenue Service and appropriate  state taxing
                authorities;

      5.        Distribute to the Limited Partners final Form K-1 tax 
                information; and

      6.        File a Certificate of  Cancellation on behalf of the Partnership
                with the Secretary of State of the State of Texas.

      Auction.   The  Managing   General  Partner  intends  to  engage  the  O&G
Clearinghouse  or another similar company to conduct live auctions for the sales
working interests of the Operating  Partnership and the non-operating  interests
of the  Partnership.  The O&G  Clearinghouse  is in the  business of  conducting
auctions for oil and gas properties.  The O&G  Clearinghouse  establishes a data
room, which it leaves open for a period of time (generally three to four weeks),
after which it holds a live  auction.  The O&G  Clearinghouse  requires  advance
registration for all bidders.  Bidders may participate by invitation only, after
having  qualified  as  knowledgeable  and  sophisticated  parties  routinely  or
actively engaged in the oil and gas business. The O&G Clearinghouse  publishes a
brochure  regarding the properties.  The O&G  Clearinghouse  is headquartered in
Houston,  Texas. In auctions conducted by the O&G Clearinghouse,  properties are
generally  grouped into small  packages  with a single field often  comprising a
property.

                                       18

<PAGE>




      Estimated Selling Costs. The expenses  associated with the auction process
(auctioneer's  fee plus  advertising  fee) is expected to be approximately 7% of
the sales price received.  This does not include  internal costs of the Managing
General  Partner with respect to the sales,  nor fees owed to third  parties for
services  incident to the sale.  For example,  if the Managing  General  Partner
engaged a third party to sell the  properties,  this would entail an  additional
fee (although in such a case the Managing General Partner's internal costs would
be lower). This also does not include the costs of the proxy  solicitation.  See
"Voting on the Proposal-- Solicitation."

      Negotiated  Sale.  Although the Managing  General Partner intends to offer
the Partnership's and the Operating Partnership's Property Interests at auction,
it is possible  that the Managing  General  Partner or a third party engaged for
the purpose of selling the  Partnership's  assets may approach other oil and gas
companies  and  negotiate a sale of certain  Property  Interests.  The  Managing
General  Partner  (or such  third  party)  may  solicit  bids on the oil and gas
properties  for which the  Managing  General  Partner  is the  operator.  If the
Managing  General  Partner (or third party)  solicits  bids, it will provide all
interested  parties with information  about the properties needed to bid on such
properties.  Such information would include raw data and historical  information
on all of the operated  properties that any of the  partnerships  managed by the
Managing  General  Partner  intends  to sell.  See  "--Steps  to  Implement  the
Proposal." The data will be organized by property.  Neither the Managing General
Partner nor its  affiliates nor any other  partnerships  managed by the Managing
General  Partner will purchase any of the  Partnership's  Property  Interests in
this  manner.  In the  event of a bid that is lower  than a price  the  Managing
General  Partner  believes is  reasonable,  it may sell the  property to a third
party  bidder for such lower bid price,  use  another  method of sale such as an
auction,  or have the  Partnership  continue to hold such  property  for a while
longer.  If a  property  cannot  be sold to a third  party  at  auction  or on a
negotiated  basis,  which usually occurs  because it has no  appreciable  value,
often  accompanied by the fact that the property  requires  expenditures to plug
and abandon wells,  the Managing General Partner may dispose of such property by
conveying  it to the operator or by  conveying  the  property to itself,  for no
consideration.  Determination  as to  whether  such  conveyances  will be  made,
including  conveyances to the Managing  General  Partner in such cases,  will be
made solely by the Managing General Partner. The Managing General Partner is not
currently aware of any Property  Interests  owned by the  Partnership  which are
likely  to be  conveyed  in this  manner.  In no event is the  Managing  General
Partner obligated to purchase any of the Property Interests.

      Other.  Any sale of the Partnership Property Interests and the subsequent 
liquidating distributions to the Limited Partners, if any, pursuant to the 
Proposal will be taxable transactions under federal and state income tax laws.
See "Federal Income Tax Consequences."

Impact on the Managing General Partner

      The Managing General Partner will be economically  impacted by liquidation
in at  least  two  ways.  First,  to the  extent  of  its  ownership  of  Units,
liquidation  will have the same  effect on it as on the  Limited  Partners.  See
"--Estimate  of  Liquidating   Distribution  Amount."  Second,  because  of  the
dissolution and  liquidation of the  Partnership,  together with  liquidation of
other  partnerships,  the  Managing  General  Partner  will no  longer  hold the
majority  interest  in  various  wells.  Different  operators  are  likely to be
selected and the Managing  General  Partner will therefore lose revenues that it
currently realizes from its role as operator for those properties.  The Managing
General Partner is making its recommendations as set forth below on the basis of
its  fiduciary  duty to the  Limited  Partners,  rather than on the basis of the
direct economic impact on the Managing General Partner.


                                       19

<PAGE>



Recommendation of the Managing General Partner

      For the foregoing  reasons,  the Managing General Partner believes that it
is in the best  interests of the Limited  Partners to dissolve and liquidate the
Partnership  in an effort to maximize the value of the  Partnership's  remaining
assets and the amounts  distributed  to Limited  Partners and to accelerate  the
receipt of such liquidating distributions. The Managing General Partner believes
that through the liquidation of the  Partnership's  remaining assets in the near
term,  Limited  Partners will benefit from the current  higher levels of oil and
gas prices and therefore,  may receive a greater  liquidating cash  distribution
than if the Partnership  were to continue to operate as a going concern,  and be
subject to possible  future  decreases in oil and gas prices  during the lengthy
period of 20 years necessary to produce the  Partnership's  remaining  reserves.
Additionally,   distribution   amounts  will  be  affected  by  the  anticipated
continuation of declines in revenues and the continuing relatively fixed general
and  administrative  and  operating  expenses  that  will  be  incurred  by  the
Partnership.  Continued operations of the Partnership would mean continuation of
the  additional  costs  incurred by the Limited  Partners,  including  the costs
associated  with inclusion of information  from the Schedule K-1 relating to the
Partnership in their personal income tax returns. Termination of the Partnership
will allow the current receipt of the remaining value of the Partnership and the
preparation of a final tax return,  and will make available  certain  additional
tax deductions.

      The Managing General Partner recommends that the Limited Partners vote 
FOR the Proposal.


                         FEDERAL INCOME TAX CONSEQUENCES


General

      The following  summarizes  certain federal income tax  consequences to the
Limited Partners arising from the Partnership's proposed sale of its oil and gas
properties  and  liquidation  pursuant to the Proposal.  This  discussion is not
based upon an opinion of counsel and it is possible that different  results than
those  described  may  occur.  Statements  of legal  conclusions  regarding  tax
consequences are based upon relevant  provisions of the Internal Revenue Code of
1986, as amended (the "Code"),  and  accompanying  Treasury  Regulations,  as in
effect on the date hereof, upon private letter rulings dated October 6, 1987 and
August 22, 1991, upon reported judicial decisions and published positions of the
Internal Revenue Service (the "Service"),  and upon further assumptions that the
Partnership  constitutes  a  partnership  for federal tax  purposes and that the
Partnership  will be  liquidated  as described  herein.  The laws,  regulations,
administrative   rulings  and  judicial  decisions  which  form  the  basis  for
conclusions  with respect to the tax  consequences  described herein are complex
and are subject to prospective or retroactive  change at any time and any change
may adversely affect Limited Partners.

      This  summary  does not  describe  all the tax  aspects  which may  affect
Limited  Partners  because  the tax  consequences  may vary  depending  upon the
individual  circumstances  of a Limited  Partner.  It is  generally  directed to
Limited  Partners that are qualified  plans and trusts under Code Section 401(a)
and individual retirement accounts ("IRAs") under Code Section 408 (collectively
"Tax Exempt  Plans") and that are the original  purchasers of the Units and hold
interests in the Partnership as "capital assets"  (generally,  property held for
investment).  Each Limited  Partner  that is not a  tax-exempt  Plan is strongly
encouraged to consult its own tax advisor as to the rules which are specifically
applicable  to it.  Except as  otherwise  specifically  set forth  herein,  this
summary  does not  address  foreign,  state or local  tax  consequences,  and is
inapplicable  to nonresident  aliens,  foreign  corporations,  debtors under the


                                       20

<PAGE>



jurisdiction  of a  court  in a  case  under  federal  bankruptcy  laws  or in a
receivership,  foreclosure  or similar  proceeding,  or an  investment  company,
financial institution or insurance company.

Tax Treatment of Tax Exempt Plans

      Sale of Property Interest and Liquidation of Partnership

      The  Managing  General  Partner  is  proposing  to sell the  Partnership's
Property  Interest as well as any other  royalties and overriding  royalties the
Partnership may own. After the sale of the properties,  the Partnership's assets
will  consist  solely of cash,  which will be  distributed  to the  partners  in
complete liquidation of the partnership.

      Tax Exempt Plans are subject to tax on their  unrelated  business  taxable
income ("UBTI"). UBTI is income derived by an organization from the conduct of a
trade or business  that is  substantially  unrelated to its  performance  of the
function that constitutes the basis of its tax exemption (aside from the need of
such organization for funds).  Royalty interests,  dividends,  interest and gain
from  the   disposition   of  capital   assets  are   generally   excluded  from
classification as UBTI. Notwithstanding these exclusions,  royalties,  interest,
dividends,  and gains will create UBTI if they are received  from  debt-financed
property, as discussed below.

      The Internal Revenue Service has previously  ruled that the  Partnership's
Property  Interest,  as  structured  under the NP/OR,  is a royalty,  as are any
overriding  royalties the  Partnership  may own. To the extent that the Property
Interest  is not  debt-financed  property,  neither  the  sale  of the  Property
Interest by the  Partnership  nor the liquidation of the Partnership is expected
to cause Limited Partners that are Tax Exempt Plans to recognize taxable gain or
loss for federal income tax purposes, even though there may be gain or loss upon
the sale of the Property Interest for federal income tax purposes.

      Debt-Financed Property

      Debt-financed  property is property held to produce income that is subject
to acquisition indebtedness.  The income is taxable in the same proportion which
the  debt  bears  to the  total  cost  of  acquiring  the  property.  Generally,
acquisition  indebtedness is the unpaid amount of (i) indebtedness incurred by a
Tax Exempt  Plan to acquire an  interest  in a  partnership,  (ii)  indebtedness
incurred in acquiring  or improving  property,  or (iii)  indebtedness  incurred
either  before  or after the  acquisition  or  improvement  of  property  or the
acquisition of a partnership  interest if such indebtedness  would not have been
incurred but for such acquisition or improvement,  and if incurred subsequent to
such  acquisition  or  improvement,  the  incurrence  of such  indebtedness  was
reasonably   foreseeable  at  the  time  of  such  acquisition  or  improvement.
Generally, property acquired subject to a mortgage or similar lien is considered
debt-financed  property even if the organization acquiring the property does not
assume  or agree to pay the debt.  Notwithstanding  the  foregoing,  acquisition
indebtedness  excludes certain  indebtedness  incurred by Tax Exempt Plans other
than IRAs to acquire or improve  real  property.  Although  this  exception  may
apply,  its usefulness may be limited due to its technical  requirements and the
fact that the debt  excluded from  classification  as  acquisition  indebtedness
appears to be debt incurred by a partnership  and not debt incurred by a partner
directly or indirectly in acquiring a partnership interest.

      If a Limited  Partner  that is a Tax Exempt  Plan  borrowed to acquire its
Partnership  Interest or had borrowed  funds either  before or after it acquired
its Partnership Interest,  its pro rata share of Partnership gain on the sale of
the Property  Interest may be UBTI. The Managing General Partner has represented
that  (i) the  Partnership  did not  borrowed  money  to  acquire  its  Property
Interest,  and (ii) that the Property Interest of the Partnership is not subject
to any debt,  mortgages  or  similar  liens  that will  cause the  Partnership's
Property Interest to be debt-financed  property under Code Section 514. If a Tax
Exempt  Plan  has  not  caused  its  Partnership  Interest  to be  debt-financed
property,  and based  upon the  representations  of the  Managing  General,  the
Property Interest is not expected to be considered debt-financed property.

<PAGE>

Tax Treatment of Limited Partners Subject to Federal Income Tax Due to Debt-
financing or Who are Not Tax Exempt Plans

      All references  hereinbelow to Limited  Partners  refers solely to Limited
Partners  that  either are not Tax Exempt  Plans or are Tax Exempt  Plans  whose
Partnership  Interest is  debt-financed.  To the extent that a Tax Exempt Plan's
Partnership Interest is only partially debt-financed,  the percentage of gain or
loss from the sale of the Property  Interest and  liquidation of the Partnership
that will be subject to  taxation  as UBTI is the  percentage  of the Tax Exempt
Plan's share of Partnership  income,  gain,  loss and deduction  adjusted by the
following  calculation.   Section  514(a)(1)  includes,  with  respect  to  each
debt-financed  property,  as gross income from an unrelated trade or business an
amount which is the same percentage of the total gross income derived during the
taxable year from or on account of the  property as (i) the average  acquisition
indebtedness  for the taxable  year with  respect to the property is of (ii) the
average  amount of the adjusted  basis of the  property  during the period it is
held by the organization during the taxable year (the "debt/basis percentage").

      A similar calculation is used to determine the allowable  deductions.  For
each debt-financed  property, the amount of the deductions directly attributable
to the property are  multiplied by the debt/basis  percentage,  which yields the
allowable  deductions.  If the average acquisition  indebtedness is equal to the
average adjusted basis, the debt/basis percentage is zero and all the income and
deductions are included within UBTI. The debt/basis  percentage is calculated on
an annual basis.

      Tax Exempt Plans with debt-financed  Partnership  Interests should consult
their  tax  advisors  to  determine  the  portion  of gain or loss  that  may be
recognized for federal income tax purposes.  The following discussion of the tax
consequences  of  the  sale  of  the  Partnership   Property  Interest  and  the
liquidation of the Partnership  assumes that all of a Limited  Partner's income,
gain, loss and deduction from the Partnership is subject to federal taxation.

Taxable Gain or Loss Upon Sale of Properties

      A  Limited  Partner  will  realize  and  recognize  gain  or  loss,  or  a
combination of both,  upon the  Partnership's  sale of its  properties  prior to
liquidation.  The amount of gain  realized  with  respect to each  property,  or
related asset,  will be an amount equal to the excess of the amount  realized by
the  Partnership   and  allocated  to  the  Limited   Partner  (i.e.,   cash  or
consideration  received) over the Limited Partner's  adjusted tax basis for such
property.  Conversely, the amount of loss realized with respect to each property
or related asset will be an amount equal to the excess of the Limited  Partner's
tax basis over the amount  realized by the  Partnership  for such  property  and
allocated  to the Limited  Partner.  It is  projected  that taxable loss will be
realized  upon the sale of  Partnership  properties  and that  such loss will be
allocated  among  the  Limited  Partners  in  accordance  with  the  Partnership
Agreement.  The  Partnership  Agreement  includes an allocation  provision  that
requires  allocations  pursuant  to a  liquidation  be made among  Partners in a
fashion that  equalizes  capital  accounts of the Partners so that the amount in
each  Partner's  capital  account will reflect such  Partner's  sharing ratio of
income and loss. The extent to which capital accounts can be equalized, however,
is limited by the amount of gain and loss available to be allocated.


                                       21

<PAGE>



      Realized gains and losses generally must be recognized and reported in the
year the sale  occurs.  Accordingly,  each  Limited  Partner  will  realize  and
recognize his  allocable  share of gains and losses in his tax year within which
the Partnership properties are sold.

Liquidation of the Partnership

      After sale of its properties, the Partnership's assets will consist solely
of cash which it will  distribute to its partners in complete  liquidation.  The
Partnership will not realize gain or loss upon such  distribution of cash to its
partners in liquidation.  If the amount of cash distributed to a Limited Partner
in  liquidation  is less than such Limited  Partner's  adjusted tax basis in his
Partnership  interest,  the Limited Partner will realize and recognize a capital
loss to the extent of the excess.  If the amount of cash  distributed is greater
than such Limited Partner's adjusted tax basis in his Partnership interest,  the
Limited  Partner  will  recognize  a capital  gain to the extent of the  excess.
Because each Limited  Partner paid a portion of syndication  and formation costs
upon entering the Partnership,  neither of which costs were deductible expenses,
it is anticipated  that  liquidating  distributions  to Limited Partners will be
less than such Limited Partners' bases in their  Partnership  interests and thus
will generate capital losses.

Capital Gains Tax

      Net  long-term  capital gains of  individuals,  trusts and estates will be
taxed at a maximum rate of 20%, while ordinarily  income,  including income from
the  recapture of depletion,  will be taxed at a maximum rate  depending on that
Limited  Partner's  taxable income of 36% or 39.6%.  With respect to net capital
losses,  other than Section 1231 net losses, the amount of net long-term capital
loss that can be utilized to offset  ordinary  income will be limited to the sum
of net capital gains from other sources recognized by the Limited Partner during
the tax year, plus $3,000 ($1,500,  in the case of a married individual filing a
separate  return).  The excess amount of such net long-term  capital loss may be
carried   forward  and  utilized  in  subsequent   years  subject  to  the  same
limitations.  Corporations  are taxed on net  long-term  capital  gains at their
ordinary Section 11 rates and are allowed to carry net capital losses back three
years and forward five years.

Passive Loss Limitations

      Limited  Partners  that are  individuals,  trusts,  estates,  or  personal
service  corporations are subject to the passive activity loss limitations rules
that were enacted as part of the Tax Reform Act of 1986.

      A Limited Partner's allocable share of Partnership income, gain, loss, and
deduction is treated as derived from a passive activity, except to the extent of
Partnership portfolio income, which includes interest, dividends, royalty income
and gains from the sale of  property  held for  investment  purposes.  A Limited
Partner's  allocable  share  of  any  gain  or  loss  realized  on  sale  of the
Partnership's  net profits interest is expected to be characterized as portfolio
and may not offset, or be offset by, passive activity gains or losses.

      THE FOREGOING DISCUSSION IS INTENDED TO BE A SUMMARY OF CERTAIN INCOME TAX
CONSIDERATIONS  OF THE SALE OF PROPERTIES AND LIQUIDATION.  EACH LIMITED PARTNER
SHOULD CONSULT ITS OWN TAX ADVISOR  CONCERNING ITS PARTICULAR TAX  CIRCUMSTANCES
AND THE FEDERAL,  STATE, LOCAL,  FOREIGN AND OTHER TAX CONSEQUENCES TO IT OF THE
SALE OF PROPERTIES AND THE LIQUIDATION OF THE PARTNERSHIP.



                                       22

<PAGE>



                           BUSINESS OF THE PARTNERSHIP

      The Partnership is a Texas limited  partnership  formed December 31, 1990.
Units in the  Partnership  are registered  under Section 12(g) of the Securities
Exchange  Act of 1934.  In  addition  to the  following  information  about  the
business of the Partnership, see the attached Annual Report on Form 10-K for the
year ended  December 31,  1996,  and its  quarterly  report on Form 10-Q for the
second quarter of 1997, both included herewith.

Reserves

      For information about the  Partnership's  interest in oil and gas reserves
and future net revenue  expected  from the  production  of those  reserves as of
December 31, 1996,  see the attached  report which was audited by H.J.  Gruy and
Associates, Inc., independent petroleum consultants. It should be noted that the
reserve  estimates  in the  Annual  Report  on  Form  10-K  reflect  the  entire
Partnership  reserves and that the reserve  report in the  attached  letter from
H.J. Gruy and Associates,  Inc. reflects only the Limited Partners' share of the
Partnership's  estimated oil and gas reserves.  This report has not been updated
to include the effect of  production  since  year-end  1996,  nor has the annual
review of estimated quantities done each year-end taken place for 1997.

      There are numerous  uncertainties  inherent in  estimating  quantities  of
proved  reserves and in  projecting  the future rates and timing of  production,
future costs and future development plans. Oil and gas reserve  engineering must
be recognized as a subjective process of estimating underground accumulations of
oil and gas that  cannot be  measured in an exact way,  and  estimates  of other
engineers  might differ from those in the attached  report.  The accuracy of any
reserve  estimate  is a  function  of  the  quality  of  available  data  and of
engineering  and geological  interpretation  and judgment.  Results of drilling,
testing  and  production  subsequent  to the date of the  estimate  may  justify
revision of such estimate,  and, as a general rule, reserve estimates based upon
volumetric  analysis are  inherently  less  reliable than those based on lengthy
production history. Accordingly,  reserve estimates are often different from the
quantities of oil and gas that are ultimately recovered.

      In estimating the Partnership's  interest in oil and natural gas reserves,
the Managing General Partner, has used flat pricing based upon estimates of 1997
average prices,  without  escalation,  except in those instances where fixed and
determinable  gas price  escalations  are covered by  contracts,  limited to the
price the Partnership  reasonably expects to receive.  These pricing assumptions
vary from those mandated by the Securities and Exchange  Commission  ("SEC") for
reserves  disclosures under applicable SEC rules, which require use of prices at
year-end,  although the discount  rate and lack of  escalation  are the same. If
estimates of reserves and future net revenues had been prepared  using  December
31, 1996 prices, as mandated by the SEC,  reserves,  future net revenues and the
present  value  thereof  would be  significantly  higher.  The Managing  General
Partner has determined not to use these higher prices because current  estimates
of 1997 average prices more accurately  reflect prices  purchasers of properties
are willing to pay,  rather than higher values which do not reflect the decrease
in prices since year-end 1996.  For example,  the weighted  average price of gas
received  by the  Partnership  during the first six months of 1997 was $2.36 per
Mcf, as compared to $4.68 per Mcf at December  31, 1996.  The  Managing  General
Partner  does  not  believe  that any  favorable  or  adverse  event  causing  a
significant change in the estimated quantity of proved reserves set forth in the
attached  report has occurred  between  December 31, 1996,  and the date of this
Proxy Statement.


                                       23

<PAGE>



      Future prices received for the sale of production from properties in which
the  Partnership  has an interest may be higher or lower than the prices used in
the  Partnership's  estimates  of oil  and gas  reserves;  the  operating  costs
relating to such production may also increase or decrease from existing levels.

The Managing General Partner

      Subject to certain limitations set forth in the Partnership Agreement, the
Managing  General  Partner has full,  exclusive  and complete  discretion in the
management and control of the business of the Partnership.  The Managing General
Partner has general liability for the debts and obligations of the Partnership.

      The  Managing  General  Partner is engaged in the  business of oil and gas
exploration, development and production, and the Managing General Partner serves
as the  general  partner  of a number of other oil and gas  income  and  pension
partnerships.  The Managing General  Partner's common stock is traded on the New
York and Pacific Stock Exchanges.

      The  principal  executive  offices of the  Managing  General  Partner  are
located at 16825 Northchase Drive,  Suite 400, Houston,  Texas 77060,  telephone
number (281) 874-2700.

Transactions Between the Managing General Partner and the Partnership

      The Managing  General Partner  receives  operating fees for wells in which
the  Partnership has a net profits  interest and for which the Managing  General
Partner or its affiliates serve as operator.  It is anticipated that, due to the
sale of interests in wells by the Operating  Partnership,  the Managing  General
Partner  will no longer serve as operator for a number of the wells in which the
Partnership has a net profits interest.  To the extent that the operator changes
because of a change in ownership of the properties, the Managing General Partner
will lose the revenues it currently earns as operator,  which are less than 1.0%
of the Managing  General  Partner's net revenues.  The Managing  General Partner
believes,  however,  that it will be positively affected,  on the other hand, by
liquidation of the  Partnership,  on the basis of its ownership  interest in the
Partnership.  See "The  Proposal--Estimates of Liquidating Distribution Amount,"
and "The Proposal--Impact on the Managing General Partner."

      Under the Partnership Agreement, the Managing General Partner has received
certain compensation for its services and reimbursement for expenditures made on
behalf of the  Partnership,  which was paid at closing of the offering of Units,
in addition to revenues  distributable  to the  Managing  General  Partner  with
respect to its general partnership interest or limited partnership  interests it
has purchased.  In addition to those revenues,  compensation and reimbursements,
the following  summarizes the transactions  between the Managing General Partner
and the Partnership pursuant to which the Managing General Partner has been paid
or has had its expenses reimbursed on an ongoing basis:

      o  The Managing  General Partner has received  management fees of $73,259,
         internal  acquisition  costs  reimbursements  of $143,297 and formation
         costs  reimbursements  of $58,608 from the  Partnership  from inception
         through June 30, 1997.

      o  The Managing General Partner receives  per-well monthly  operating fees
         from the Operating Partnership for certain producing wells in which the
         Partnership owns Property Interests and for which it serves as operator
         in  accordance  with the joint  operating  agreements  for each of such
         wells.  The fees that are set in the  joint  operating  agreements  are
         negotiated with the other working interest owners of the properties.

                                       24

<PAGE>



      o  The Managing  General Partner is entitled to be reimbursed and has been
         reimbursed  from  inception to June 30, 1997,  $277,025 for general and
         administrative  costs  incurred  on  behalf  of  and  allocable  to the
         Partnership,  including employee salaries and office overhead.  Amounts
         are calculated on the basis of Limited Partner capital contributions to
         the  Partnership  relative  to  limited  partner  contributions  of all
         partnerships  for which the Managing General Partner serves as Managing
         General Partner.

      o  The Managing  General  Partner has been  reimbursed  $11,504 for direct
         expenses,  all of which was billed by, and then paid directly to, third
         party vendors.

No Trading Market

      There is no trading market for the Units, and none is expected to develop.
Under the Partnership Agreement,  the Limited Partners have the right to present
their Units to the Managing General Partner for repurchase at a price determined
in accordance  with the formula  established by Article XVIII of the Partnership
Agreement. Originally, 279 Limited Partners invested in the Partnership. Through
December 31, 1996, the Managing  General  Partner had purchased 1,214 Units from
Limited Partners  pursuant to the right of presentment.  As of October 15, 1997,
there were 277 Limited Partners  (excluding the Managing General  Partner).  The
Managing  General  Partner does not have an  obligation  to  repurchase  Limited
Partner interests  pursuant to this right of presentment but merely an option to
do so when such interests are presented for repurchase.

Principal Holders of Limited Partner Units

      The Managing  General Partner holds 4.14% of the Units of the Partnership.
To the knowledge of the Managing  General  Partner,  there is no holder of Units
that holds more than 5% of the Units.

Approvals

      No federal or state regulatory requirements must be satisfied or approvals
obtained in connection with the sale of the Partnership's Property Interests.

Legal Proceedings

      The Managing  General  Partner is not aware of any material  pending legal
proceedings to which the  Partnership is a party or of which any of its property
is the subject.


              INCORPORATION OF CERTAIN INFORMATION BY REFERENCE AND
                        ATTACHMENT OF INFORMATION HERETO

      The  Partnership's  Annual Report on Form 10-K for the year ended December
31, 1996, and its quarterly  report on Form 10-Q for the second quarter of 1997,
which are attached hereto and incorporated herein by reference.  Additionally, a
reserve report dated May 20, 1997, prepared as of December 31, 1996, and audited
by H.J. Gruy and Associates, Inc. is attached hereto.



                                       25

<PAGE>



                                 OTHER BUSINESS

      The Managing  General  Partner does not intend to bring any other business
before the Meeting and has not been  informed  that any other  matters are to be
presented at the Meeting by any other person.


                                             SWIFT ENERGY COMPANY
                                             as Managing General Partner of
                                             Swift Energy Managed Pension Assets
                                             Partnership 1990-D, Ltd.

                                             /S/ John R. Alden
                                             -----------------------------------
                                              John R. Alden
                                              Secretary



                                       26

<PAGE>



                                  FORM OF PROXY

          SWIFT ENERGY MANAGED PENSION ASSETS PARTNERSHIP 1990-D, LTD.

                 This Proxy is Solicited by the Managing General
             Partner for a Special Meeting of Limited Partners to be
                            held on November 25, 1997

      The undersigned  hereby  constitutes and appoints A. Earl Swift,  Bruce H.
Vincent,  Terry E. Swift or John R. Alden, as duly authorized  officers of Swift
Energy  Company,  acting in its  capacity  as  Managing  General  Partner of the
Partnership,  or any of them, with full power of substitution  and revocation to
each, the true and lawful  attorneys and proxies of the undersigned at a Special
Meeting of the Limited  Partners (the "Meeting") of SWIFT ENERGY MANAGED PENSION
ASSETS PARTNERSHIP  1990-D,  LTD. (the "Partnership") to be held on November 25,
1997 at 4:00 p.m. Houston time, at 16825 Northchase Drive,  Houston,  Texas, and
any  adjournments  thereof,  and to vote as designated,  on the matter specified
below,  the  Partnership  Units  standing in the name of the  undersigned on the
books of the  Partnership  (or which the undersigned may be entitled to vote) on
the record date for the Meeting with all powers the undersigned would possess if
personally present at the Meeting:



The adoption of a proposal                         FOR     AGAINST     ABSTAIN
("Proposal") for (a) sale of
substantially all of the assets                    [ ]       [ ]         [ ]  
of the Partnership (consisting 
of its net profits interest), and 
(b) the dissolution, winding up and 
termination of the Partnership. The
undersigned hereby directs said proxies
to vote:

      This  proxy  will be voted in  accordance  with  the  specifications  made
hereon. If no contrary specification is made, it will be voted FOR the Proposal.

      Receipt of the Partnership's Notice of Special Meeting of Limited Partners
and Proxy Statement dated October 15, 1997 is acknowledged.



                PLEASE SIGN AND RETURN THE PROXY IN THE ENCLOSED,
                     POSTAGE-PAID, PRE-ADDRESSED ENVELOPE BY
                               NOVEMBER 15, 1997.



SIGNATURE                                                   DATE
- --------------------------------                            -------------------

SIGNATURE                                                   DATE
- --------------------------------                            -------------------

SIGNATURE                                                   DATE
- --------------------------------                            -------------------

      If Limited Partnership Units are held jointly, all joint tenants must
sign.

                                       27

<PAGE>



                               DOCUMENTS INCLUDED

      The  Partnership's  Annual Report on Form 10-K for the year ended December
31, 1996 and its  quarterly  report on Form 10-Q for the second  quarter of 1997
are included with this Proxy Statement and incorporated herein by reference. See
"Incorporation  of Certain  Information  By  Reference  and  Attachment  of Such
Information Hereto." Additionally, a reserve report dated May 20, 1997, prepared
as of December 31,  1996,  and audited by H.J.  Gruy and  Associates,  Inc.,  is
attached hereto.


                                TABLE OF CONTENTS

SUMMARY........................................................................1
      General..................................................................1
      Partnership Property Interests...........................................1
      Method of Sale...........................................................2

PARTNERSHIP PROPERTY INTERESTS.................................................3

SPECIAL CONSIDERATIONS.........................................................4
      Reasons for the Proposal.................................................4
      Fairness of the Proposal.................................................4

GLOSSARY OF TERMS..............................................................6

VOTING ON THE PROPOSAL.........................................................7
      Vote Required............................................................7
      Proxies; Revocation......................................................7
      No Appraisal or Dissenters' Rights Provided..............................8
      Solicitation.............................................................8

RISK FACTORS...................................................................8
      Uncertainty of Liquidating Distributions.................................8
      Undetermined Sales Prices; Volatility of Oil and Gas Prices..............8
      Dependence on Operating Partnership......................................9
      Prices Used for Calculation of PV-10 Value of Proved Reserves............9

THE PROPOSAL...................................................................9
      General..................................................................9
      Partnership Financial Performance and Condition.........................10
      Estimates of Liquidating Distribution Amount............................13
      Fairness of the Proposal; Comparison of Sale Versus Continuing 
      Operations..............................................................15
      Reasons for the Proposal................................................16
      Simultaneous Proposal to Operating Partnership..........................17
      Steps to Implement the Proposal.........................................17
      Impact on the Managing General Partner..................................19
      Recommendation of the Managing General Partner..........................20



                                        i

<PAGE>


FEDERAL INCOME TAX CONSEQUENCES...............................................20
      General.................................................................20
      Tax Treatment of Tax Exempt Plans.......................................21
      Tax Treatment of Limited Partners Subject to Federal Income Tax
         Due to Debt-financing or Who are Not Tax Exempt Plans................22
      Taxable Gain or Loss Upon Sale of Properties............................22
      Liquidation of the Partnership..........................................23
      Capital Gains Tax.......................................................23
      Passive Loss Limitations................................................23

BUSINESS OF THE PARTNERSHIP...................................................24
      Reserves................................................................24
      The Managing General Partner............................................25
      Transactions Between the Managing General Partner and the Partnership...25
      No Trading Market.......................................................26
      Principal Holders of Limited Partner Units..............................26
      Approvals...............................................................26
      Legal Proceedings.......................................................26

INCORPORATION OF CERTAIN INFORMATION BY REFERENCE AND
      ATTACHMENT OF INFORMATION HERETO........................................26

OTHER BUSINESS................................................................27

FORM OF PROXY.................................................................28


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