<PAGE>

                                    FORM 10-Q


                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


    [ X ]         QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                              THE SECURITIES EXCHANGE ACT OF 1934

                For the quarterly period ended September 30, 1999

                                       OR

    [   ]         TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                              THE SECURITIES EXCHANGE ACT OF 1934

     For the transition period from _________________ to __________________

                         Commission File number: 0-25990



                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
             (Exact name of registrant as specified in its charter)

<TABLE>
<S>                                           <C>
                  Texas                                    76-0415732
(State or other jurisdiction of organization) (I.R.S. Employer Identification No.)
</TABLE>


                        16825 Northchase Drive, Suite 400
                              Houston, Texas 77060
                    (Address of principal executive offices)
                                   (Zip Code)

                                  (281)874-2700
              (Registrant's telephone number, including area code)

                                      None
              (Former name, former address and former fiscal year,
                          if changed since last report)


Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  Registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

Yes  X      No
   ----



<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.

                                      INDEX



<TABLE>
<CAPTION>
PART I.    FINANCIAL INFORMATION                                                            PAGE
      <S>                                                                                    <C>
      ITEM 1.    Financial Statements

            Balance Sheets

                - September 30, 1999 and December 31, 1998                                    3

            Statements of Operations

                - Three month and nine month periods ended September 30, 1999 and 1998        4

            Statement of Cash Flows

                - Nine month periods ended September 30, 1999 and 1998                        5

            Notes to Financial Statements                                                     6

      ITEM 2.    Management's Discussion and Analysis of Financial
                     Condition and Results of Operations                                     10

PART II.    OTHER INFORMATION                                                                13


SIGNATURES                                                                                   14
</TABLE>



<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                                 BALANCE SHEETS



<TABLE>
<CAPTION>
                                                                                September 30,          December 31,
                                                                                    1999                  1998
                                                                               ---------------       ---------------
                                                                                (Unaudited)
<S>                                                                          <C>                   <C>
ASSETS:

Current Assets:
     Cash and cash equivalents                                               $        242,357      $          1,127
     Nonoperating interests income receivable                                          11,946                26,038
                                                                               ---------------       ---------------
          Total Current Assets                                                        254,303                27,165
                                                                               ---------------       ---------------

Nonoperating interests in oil and gas
     properties, using full cost accounting                                         3,163,489             3,558,723
Less-Accumulated amortization                                                      (2,631,882)           (2,577,600)
                                                                               ---------------       ---------------
                                                                                      531,607               981,123
                                                                               ===============       ===============
                                                                             $        785,910      $      1,008,288
                                                                               ===============       ===============


LIABILITIES AND PARTNERS' CAPITAL:

Current Liabilities:
     Accounts Payable                                                        $          3,653      $        164,956
                                                                               ---------------       ---------------


Interest Holders' Capital (3,280,356 Interest Holders'
                          SDIs; $1.00 per SDI)                                        754,547               818,990

General Partners' Capital                                                              27,710                24,342
                                                                               ---------------       ---------------
          Total Partners' Capital                                                     782,257               843,332
                                                                               ===============       ===============
                                                                             $        785,910      $      1,008,288
                                                                               ===============       ===============
</TABLE>


                 See accompanying notes to financial statements.

                                        3


<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                            STATEMENTS OF OPERATIONS
                                   (Unaudited)



<TABLE>
<CAPTION>
                                                     Three Months Ended                       Nine Months Ended
                                                        September 30,                           September 30,
                                              ----------------------------------       ---------------------------------
                                                   1999               1998                 1999               1998
                                              ---------------    ---------------       --------------     --------------
<S>                                         <C>                <C>                   <C>                <C>
REVENUES:
     Income from nonoperating interests     $          7,866   $         17,993      $        68,854    $       107,148
     Interest income                                      27                 14                   45                 34
                                              ---------------    ---------------       --------------     --------------
                                                       7,893             18,007               68,899            107,182
                                              ---------------    ---------------       --------------     --------------


COSTS AND EXPENSES:
     Amortization                                      6,303            227,137               54,282            452,435
     General and administrative                       13,833             10,513               45,391             36,873
                                              ---------------    ---------------       --------------     --------------
                                                      20,136            237,650               99,673            489,308
                                              ===============    ===============       ==============     ==============
NET INCOME (LOSS)                           $        (12,243)  $       (219,643)     $       (30,774)   $      (382,126)
                                              ===============    ===============       ==============     ==============



Limited Partners' net income (loss)
     per SDI                                $             --   $          (0.07)     $         (0.01)   $         (0.12)
                                              ===============    ===============       ==============     ==============
</TABLE>


                 See accompanying notes to financial statements.

                                        4


<PAGE>

                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                            STATEMENTS OF CASH FLOWS
                                   (Unaudited)


<TABLE>
<CAPTION>
                                                                                            Nine Months Ended
                                                                                              September 30,
                                                                                   -------------------------------------
                                                                                        1999                  1998
                                                                                   ---------------       ---------------
<S>                                                                              <C>                   <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
     Income (loss)                                                               $        (30,774)     $       (382,126)
     Adjustments to reconcile income (loss) to
          net cash provided by operations:
          Amortization                                                                     54,282               452,435
          Change in assets and liabilities:
               (Increase) decrease in nonoperating interests income receivable             14,092                32,241
               Increase (decrease) in accounts payable                                   (161,303)              140,460
                                                                                   ---------------       ---------------
          Net cash provided by (used in) operating activities                            (123,703)              243,010
                                                                                   ---------------       ---------------

CASH FLOWS FROM INVESTING ACTIVITIES:
     Additions to nonoperating interests in oil and gas properties                         (8,759)              (82,902)
     Proceeds from sales of nonoperating interests in oil and gas properties              403,993                   454
                                                                                   ---------------       ---------------
          Net cash provided by (used in) investing activities                             395,234               (82,448)
                                                                                   ---------------       ---------------

CASH FLOWS FROM FINANCING ACTIVITIES:
     Cash Distributions to partners                                                       (30,301)             (160,528)
                                                                                   ---------------       ---------------
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS                                      241,230                    34
                                                                                   ---------------       ---------------
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD                                            1,127                 1,069
                                                                                   ===============       ===============
CASH AND CASH EQUIVALENTS AT END OF PERIOD                                       $        242,357      $          1,103
                                                                                   ===============       ===============


Supplemental disclosure of cash flow information:
     Cash paid during the period for interest                                    $          2,582      $          3,455
                                                                                   ===============       ===============
</TABLE>


                 See accompanying notes to financial statements.

                                        5


<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                          NOTES TO FINANCIAL STATEMENTS
                                   (UNAUDITED)


(1)  General Information -

                  The financial statements included herein have been prepared by
        the  Partnership  and are  unaudited  except  for the  balance  sheet at
        December  31,  1998  which has been  taken  from the  audited  financial
        statements at that date. The financial  statements reflect  adjustments,
        all of which  were of a  normal  recurring  nature,  which  are,  in the
        opinion  of  the  managing   general   partner   necessary  for  a  fair
        presentation.  Certain  information  and footnote  disclosures  normally
        included in financial  statements  prepared in accordance with generally
        accepted  accounting  principles have been omitted pursuant to the rules
        and regulations of the Securities and Exchange Commission  ("SEC").  The
        Partnership  believes adequate disclosure is provided by the information
        presented.  The financial  statements should be read in conjunction with
        the audited  financial  statements  and the notes included in the latest
        Form 10-K.

(2) Organization and Terms of Partnership Agreement -

                  Swift Energy Pension  Partners  1993-D,  Ltd., a Texas limited
        partnership  ("the  Partnership"),  was formed on December 31, 1993, for
        the purpose of  purchasing  net  profits  interest,  overriding  royalty
        interests and royalty interests (collectively, "nonoperating interests")
        in producing oil and gas properties within the continental United States
        and Canada. Swift Energy Company ("Swift"), a Texas corporation, and VJM
        Corporation ("VJM"), a California corporation, serve as Managing General
        Partner and Special  General Partner of the  Partnership,  respectively.
        The sole limited partner of the Partnership is Swift Depositary Company,
        which has assigned all of its beneficial  (but not of record) rights and
        interest  as  limited  partner  to  the  investors  in  the  Partnership
        ("Interest  Holders"),   in  the  form  of  Swift  Depositary  Interests
        ("SDIs").

                  The Managing  General  Partner has paid or will pay out of its
        own corporate funds (as a capital  contribution to the  Partnership) all
        selling commissions,  offering expenses,  printing, legal and accounting
        fees and other  formation costs incurred in connection with the offering
        of SDIs and the  formation  of the  Partnership,  for which the Managing
        General  Partner  will  receive  an  interest  in  continuing  costs and
        revenues of the Partnership. The 313 Interest Holders made total capital
        contributions of $3,280,356.

                  Generally,   all  continuing  costs  (including   general  and
        administrative  reimbursements  and direct  expenses)  and  revenues are
        allocated  85  percent  to the  Interest  Holders  and 15 percent to the
        general  partners.   After   partnership   payout,  as  defined  in  the
        Partnership  Agreement,  continuing costs and revenues will be shared 75
        percent by the Interest Holders, and 25 percent by the general partners.

(3)  Significant Accounting Policies -

      Use of Estimates --

                  The  preparation  of financial  statements in conformity  with
        generally accepted  accounting  principles  requires  management to make
        estimates and assumptions that affect the reported amounts of assets and
        liabilities  at the date of the  financial  statements  and the reported
        amounts of revenues and expenses  during the  reporting  period.  Actual
        results could differ from estimates.

      Oil and Gas Revenues -

                  Oil and gas revenues are reported using the entitlement method
        in which the Partnership  recognizes its interest in oil and natural gas
        production as revenue.


                                       6

<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                   (UNAUDITED)


      Nonoperating Interests in Oil and Gas Properties --

                  The Partnership accounts for its ownership interest in oil and
        gas properties using the proportionate consolidation method, whereby the
        Partnership's  share of assets,  liabilities,  revenues  and expenses is
        included in the appropriate classification in the financial statement.

                  For financial  reporting purposes the Partnership  follows the
        "full-cost"  method of accounting for nonoperating  interests in oil and
        gas property costs. Under this method of accounting,  all costs incurred
        in the acquisition of  nonoperating  interests in oil and gas properties
        are capitalized.  The unamortized cost of nonoperating  interests in oil
        and gas  properties is limited to the "ceiling  limitation"  (calculated
        separately for the Partnership,  limited partners and general partners).
        The  "ceiling  limitation"  is  calculated  on  a  quarterly  basis  and
        represents the estimated future net revenues from nonoperating interests
        in proved  properties  using current  prices  discounted at ten percent.
        Proceeds from the sale or disposition of  nonoperating  interests in oil
        and  gas  properties  are  treated  as a  reduction  of the  cost of the
        nonoperating  interests  with no gains or  losses  recognized  except in
        significant transactions.

                  The  Partnership  computes the provision for  amortization  of
        nonoperating    interests   in   oil   and   gas   properties   on   the
        units-of-production   method.   Under  this  method,  the  provision  is
        calculated by multiplying  the total  unamortized  cost of  nonoperating
        interests in oil and gas  properties  by an overall rate  determined  by
        dividing the physical units of oil and gas produced during the period by
        the total  estimated  proved oil and gas  reserves  attributable  to the
        Partnership's nonoperating interests at the beginning of the period.

                  The calculation of the "ceiling  limitation" and the provision
        for  depreciation,  depletion and  amortization is based on estimates of
        proved reserves. There are numerous uncertainties inherent in estimating
        quantities  of proved  reserves  and in  projecting  the future rates of
        production,  timing and plan of development. 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.  Accordingly,  reserve  estimates
        are  often  different  from  the  quantities  of oil  and gas  that  are
        ultimately recovered.

(4)  Related-Party Transactions -

                  The  Partnership  entered  into a Net Profits  and  Overriding
        Royalty  Interest  Agreement  ("NP/OR   Agreement")  with  Swift  Energy
        Operating Partners 1993-D, Ltd. ("Operating Partnership"), an affiliated
        partnership  managed  by Swift  for the  purpose  of  acquiring  working
        interests in producing  oil and gas  properties.  Under the terms of the
        NP/OR   Agreement,   the  Operating   Partnership  will  convey  to  the
        Partnership  nonoperating  interests in the aggregate net profits (i.e.,
        oil and gas  sales net of  related  operating  costs) of the  properties
        acquired equal to the Partnership's  proportionate share of the property
        acquisition costs.

(5)  Vulnerability Due to Certain Concentrations -

                  The  Partnership's  revenues are primarily the result of sales
        of its oil and natural gas production.  Market prices of oil and natural
        gas may fluctuate and adversely affect operating results.

                  In the normal  course of  business,  the  Partnership  extends
        credit,  primarily in the form of monthly oil and gas sales receivables,
        to various  companies  in the oil and gas  industry  which  results in a
        concentration  of credit risk. This  concentration of credit risk may be
        affected by changes in economic or other  conditions and may accordingly
        impact the  Partnership's  overall  credit risk.  However,  the Managing
        General  Partner  believes  that  the  risk is  mitigated  by the  size,
        reputation, and nature of the companies to which the Partnership extends
        credit.  In  addition,   the  Partnership  generally  does  not  require
        collateral or other security to support customer receivables.


                                       7


<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                   (UNAUDITED)


(6)  Fair Value of Financial Instruments -

                  The Partnership's  financial  instruments  consist of cash and
        cash equivalents and short-term  receivables and payables.  The carrying
        amounts  approximate  fair value due to the highly  liquid nature of the
        short-term instruments.

(7)  Year 2000 -

                  The  Year  2000  issue  results  from  computer  programs  and
        embedded computer chips with date fields that cannot distinguish between
        the years 1900 and 2000. The Managing  General  Partner has  implemented
        the steps necessary to make its operations and the related operations of
        the  Partnership  capable  of  addressing  the Year  2000.  These  steps
        included  upgrading,  testing and  certifying  its computer  systems and
        field   operation   services   and   obtaining   Year  2000   compliance
        certification  from  all  important  business  suppliers.  The  Managing
        General Partner formed a task force during 1998 to address the Year 2000
        issue and prepare its business  systems for the Year 2000.  The Managing
        General Partner has either replaced or updated mission  critical systems
        and has  substantially  completed  testing  and will  continue  remedial
        actions as needed.

                  The Managing  General  Partner's  business  systems are almost
        entirely  comprised of  off-the-shelf  software.  Most of the  necessary
        changes  in  computer  instructional  code were made by  upgrading  this
        software.  In  addition,  the  Managing  General  Partner  has  received
        certification  as to Year 2000  compliance  from  vendors or third party
        consultants.

                  The  Managing  General  Partner  does not  believe  that costs
        incurred  to address  the Year 2000 issue with  respect to its  business
        systems  will have a  material  effect on the  Partnership's  results of
        operations,  or its  liquidity and  financial  condition.  The estimated
        total cost to the Managing  General  Partner to address Year 2000 issues
        is  projected to be less than  $150,000,  most of which was spent during
        the testing phase. The  Partnership's  share of this cost is expected to
        be insignificant.



                                       8


<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                                   (UNAUDITED)


                  The  failure  to correct a material  Year 2000  problem  could
        result  in an  interruption,  or  failure  of  certain  normal  business
        activities or  operations.  Based on  activities  to date,  the Managing
        General  Partner  believes  that it has resolved any Year 2000  problems
        concerning   its   financial   and   administrative   systems.   It   is
        undeterminable  how all the  aspects  of the Year 2000 will  impact  the
        Partnership.  The most  reasonably  likely  worst  case  scenario  would
        involve a prolonged disruption of external power sources upon which core
        equipment   relies,   resulting  in  a   substantial   decrease  in  the
        Partnership's  oil and  gas  production  activities.  In  addition,  the
        pipeline  operators  to whom the  Managing  General  Partner  sells  the
        Partnership's  natural gas, as well as other  customers  and  suppliers,
        could be prone to Year  2000  problems  that  could not be  assessed  or
        detected by the Managing General  Partner.  The Managing General Partner
        has  contacted its major  purchasers,  customers,  suppliers,  financial
        institutions  and others  with whom it conducts  business  to  determine
        whether  they will be able to resolve  in a timely  manner any Year 2000
        problems directly  affecting the Managing General Partner or Partnership
        and to inform them of the Managing General Partner's internal assessment
        of its Year 2000  review.  There  can be no  assurance  that such  third
        parties will not fail to appropriately address their Year 2000 issues or
        will not  themselves  suffer a Year 2000  disruption  that  could have a
        material  adverse  effect  on the  Partnership's  activities,  financial
        condition  or  operating  results.  Based upon these  responses  and any
        problems  that  arise,  contingency  plans or back-up  systems  would be
        determined and addressed.


                                       9


<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                       CONDITION AND RESULTS OF OPERATIONS

GENERAL

      The  Partnership  was formed for the purpose of investing in  nonoperating
interests in producing oil and gas  properties  located  within the  continental
United States and Canada.  In order to accomplish  this,  the  Partnership  goes
through two distinct yet  overlapping  phases with respect to its  liquidity and
results of  operations.  When the  Partnership  was  formed,  it  commenced  its
"acquisition"  phase,  with all funds  placed in  short-term  investments  until
required for the acquisition of nonoperating interests.  Therefore, the interest
earned on these pre-acquisition investments becomes the primary cash flow source
for  initial  Interest  Holder   distributions.   As  the  Partnership  acquires
nonoperating  interests  in  producing  properties,  net cash from  ownership of
nonoperating  interests  becomes  available  for  distribution,  along  with the
investment   income.   After  all  partnership   funds  have  been  expended  on
nonoperating  interests in producing  oil and gas  properties,  the  Partnership
enters its  "operations"  phase.  During  this phase,  income from  nonoperating
interests  in oil  and gas  sales  generates  substantially  all  revenues,  and
distributions  to partners or Interest  Holders  reflect those revenues less all
associated  partnership expenses.  The Partnership may also derive proceeds from
the sale of nonoperating interests in acquired oil and gas properties,  when the
sale of such  interests is  economically  appropriate or preferable to continued
operations.

LIQUIDITY AND CAPITAL RESOURCES

      Oil and gas reserves are depleting  assets and therefore often  experience
significant  production  declines each year from the date of acquisition through
the end of the life of the  property.  The primary  source of  liquidity  to the
Partnership comes almost entirely from the income generated from the sale of oil
and gas produced from ownership interests in oil and gas properties. This source
of  liquidity  and  the  related  results  of  operations,   and  in  turn  cash
distributions,  will decline in future  periods as the oil and gas produced from
these properties also declines while  production and general and  administrative
costs remain relatively stable making it unlikely that the Partnership will hold
the properties  until they are fully depleted,  but will likely liquidate when a
substantial  majority of the reserves have been produced.  Cash distributions to
partners  or  Interest  Holders  are  determined  quarterly,  based upon the net
profits interest payment received from the companion operating partnership, less
general  and  administrative  expenses.  The net  profits  interest  payment  is
determined  based upon net proceeds  from sale of oil and gas  production  after
payment of lease operating  expense,  taxes and development  costs. In addition,
future  partnership  cash  requirements  are taken  into  account  to  determine
necessary cash reserves.

      Net cash provided by (used in) operating activities totaled $(123,703) and
$243,010 for the nine months ended  September  30, 1999 and 1998,  respectively.
Cash used in operating activities in 1999 is related to a decrease in production
from property sales in 1999 and a decrease in accounts  payable related to prior
period   development   costs.  Cash  provided  by  proceeds  from  the  sale  of
nonoperating  interests in properties totaled $403,993 for the nine months ended
September  30,  1999,  as the  Partnership  sold its  interests in its then most
significant  property,  the  Rancho  Viejo  Field in Webb  County,  Texas to its
operator,  EEX  Operating,  L.P.  These funds were  partially  used to repay the
remaining  development  costs  burdens.  It is  anticipated  that the  remaining
proceeds will be subsequently distributed to the partners or Interest Holders in
a special cash  distribution  in November of 1999.  Cash  distributions  totaled
$30,301 and  $160,528  for the nine months  ended  September  30, 1999 and 1998,
respectively.  In 1999, cash distributions were effected by the use of available
cash  to  repay  prior   development   costs,   production   declines  from  the
Partnership's  property sales in 1999 and low oil and gas prices received during
the first part of this year.

      The  Partnership  has  expended  all  of  the  partners'  net  commitments
available for property  acquisitions and development by acquiring  producing oil
and gas  properties.  The  partnership  invests  primarily  in proved  producing
properties  with nominal  levels of future costs of  development  for proven but
undeveloped reserves.  Significant purchases of additional reserves or extensive
drilling  activity  are not  anticipated.  The  Partnership  does not  allow for
additional  assessments  from the  partners or Interest  Holders to fund capital
requirements. However, funds are available from partnership revenues or proceeds
from the sale of partnership  property.  The Managing  General Partner  believes
that the funds currently  available to the Partnership  will be adequate to meet
any anticipated capital requirements.


                                       10

<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                       CONDITION AND RESULTS OF OPERATIONS


RESULTS OF OPERATIONS

      The  following  analysis  explains  changes  in the  revenue  and  expense
categories  for the quarter  ended  September  30, 1999  (current  quarter) when
compared to the quarter ended September 30, 1998  (corresponding  quarter),  and
for the nine months ended September 30, 1999 (current period),  when compared to
the nine months ended September 30, 1998 (corresponding period).

Three Months Ended September 30, 1999 and 1998

      Income  from  nonoperating  interests  decreased  56  percent in the third
quarter of 1999 when  compared  to the same  quarter in 1998.  Oil and gas sales
declined $33,796 or 58 percent in the third quarter of 1999 when compared to the
corresponding   quarter  in  1998,  primarily  due  to  decreased  oil  and  gas
production.  Current quarter  production volumes decreased 53 percent as oil and
gas production declined 46 percent and 56 percent,  respectively,  when compared
to third quarter 1998  production  volumes.  Oil prices  increased 97 percent or
$9.58/BBL  to an average of  $19.47/BBL  and gas prices  increased  4 percent or
$.09/MCF  to an average of  $2.17/MCF  for the  quarter.  Increased  oil and gas
prices helped offset the effect of decreased production.

      The  partnership's  sale of several  properties  in 1999 had a significant
impact on the partnership's production decline and performance.  Production from
the properties sold comprised  approximately  98 percent of the total production
decline for the  partnership  in the third  quarter of 1999 when compared to the
corresponding   quarter  in  1998.   Revenues  in  the  third  quarter  of  1998
attributable to the properties subsequently sold in 1999 comprised 66 percent of
the total revenues in the third quarter of 1998.

      Corresponding  production costs per equivalent MCF increased 10 percent in
the  third  quarter  of 1999  compared  to the third  quarter  of 1998 and total
production costs decreased 57 percent.

      Total  amortization  expense for the third  quarter of 1999  decreased  97
percent or $220,834 when  compared to the third  quarter of 1998.  In 1998,  two
components, the normal provision,  calculated on the units of production method,
and the additional provision,  relating to the ceiling limitation, make up total
amortization  expense.  Normal  amortization  expense  decreased  84  percent or
$33,483 in the third quarter of 1999 compared to the third quarter of 1998, also
related to the decline in production volumes.

      The  Partnership  recorded an additional  provision in amortization in the
third quarter of 1998 for $187,351,  when the present  value,  discounted at ten
percent, of estimated future net revenues from oil and gas properties, using the
guidelines of the Securities and Exchange Commission,  was below the fair market
value for oil and gas properties resulting in a full cost ceiling impairment.

Nine Months Ended September 30, 1999 and 1998

      Income from nonoperating  interests decreased 36 percent in the first nine
months  of 1999 when  compared  to the same  period  in 1998.  Oil and gas sales
declined $80,160 or 37 percent in the first nine months of 1999 when compared to
the  corresponding  period  in  1998,  primarily  due to  decreased  oil and gas
production.  Current period  production  volumes decreased 46 percent as oil and
gas production declined 48 percent and 46 percent,  respectively,  when compared
to the same period in 1998.  Oil prices  increased 33 percent or $3.40/BBL to an
average of  $13.80/BBL  and gas prices  increased  11 percent or  $.19/MCF to an
average of $1.89/MCF for the current period. Increased oil and gas prices helped
offset the effect of decreased production.

      The  partnership's  sale of several  properties  in 1999 had a significant
impact on the partnership's production decline and performance.  Production from
the properties sold comprised  approximately  88 percent of the total production
decline for the  partnership  in the first nine months of 1999 when  compared to
the  corresponding  period in 1998.  Revenues  in the first nine  months of 1998
attributable to the properties subsequently sold in 1999 comprised 66 percent of
the total revenues in the first nine months of 1998.


                                       11


<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                 CONDITION AND RESULTS OF OPERATIONS (CONTINUED)


      Corresponding  production costs per equivalent MCF increased 13 percent in
the first nine months of 1999 compared to the  corresponding  period in 1998 and
total production costs decreased 39 percent.

      Total amortization  expense for the first nine months of 1999 decreased 88
percent or $398,153 when compared to the first nine months of 1998. In 1998, two
components, the normal provision,  calculated on the units of production method,
and the additional provision,  relating to the ceiling limitation, make up total
amortization  expense.  Normal  amortization  expense  decreased  61  percent or
$84,428 in the first nine  months of 1999  compared  to the first nine months of
1998, also related to the decline in production volumes.

      The  Partnership  recorded an additional  provision in amortization in the
first nine months in 1998 for $313,725,  when the present  value,  discounted at
ten percent, of estimated future net revenues from oil and gas properties, using
the  guidelines of the Securities  and Exchange  Commission,  was below the fair
market  value  for oil and  gas  properties  resulting  in a full  cost  ceiling
impairment.

      During 1999,  partnership  revenues  and costs will be shared  between the
Interest Holders and general partners in an 85:15 ratio.


                                       12


<PAGE>


                   SWIFT ENERGY PENSION PARTNERS 1993-D, LTD.
                           PART II - OTHER INFORMATION




ITEM 5.    OTHER INFORMATION


                                     -NONE-






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<PAGE>


                                   SIGNATURES



Pursuant to the  requirements of Section 13 or 15(d) of the Securities  Exchange
Act of 1934,  the  Registrant  has duly  caused  this report to be signed on its
behalf by the undersigned thereunto duly authorized.


                                         SWIFT ENERGY PENSION
                                         PARTNERS 1993-D, LTD.
                                         (Registrant)

                              By:        SWIFT ENERGY COMPANY
                                         Managing General Partner


Date:  November 4, 1999       By:        /s/ John R. Alden
       ----------------                  --------------------------------------
                                         John R. Alden
                                         Senior Vice President, Secretary
                                         and Principal Financial Officer

Date:  November 4, 1999       By:        /s/ Alton D. Heckaman, Jr.
       ----------------                  --------------------------------------
                                         Alton D. Heckaman, Jr.
                                         Vice President, Controller
                                         and Principal Accounting Officer


                                       14