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                                FORM 10-Q


                    SECURITIES AND EXCHANGE COMMISSION
                         WASHINGTON, D.C.  20549

(MARK ONE)

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

For the quarterly period ended March 31, 1998

                                    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 33-47668-01

         SOUTHWEST ROYALTIES INSTITUTIONAL 1992-93 INCOME PROGRAM
         Southwest Royalties Institutional Income Fund XI-A, L.P.
                  (Exact name of registrant as specified
                  in its limited partnership agreement)

Delaware                                       75-2427297
(State or other jurisdiction of                (I.R.S. Employer
incorporation or organization)                Identification No.)


                       407 N. Big Spring, Suite 300
                           Midland, Texas 79701
                 (Address of principal executive offices)

                             (915) 686-9927
                     (Registrant's telephone number,
                           including area code)

Indicate  by  check  mark  whether 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

        The total number of pages contained in this report is 13.

<PAGE>
                     PART I. - FINANCIAL INFORMATION


Item 1.   Financial Statements

The  unaudited  condensed financial statements included  herein  have  been
prepared  by  the Registrant (herein also referred to as the "Partnership")
in  accordance  with generally accepted accounting principles  for  interim
financial information and with the instructions to Form 10-Q and Rule 10-01
of Regulation S-X.  Accordingly, they do not include all of the information
and  footnotes  required  by generally accepted accounting  principles  for
complete   financial  statements.   In  the  opinion  of  management,   all
adjustments necessary for a fair presentation have been included and are of
a  normal  recurring nature.  The financial statements should  be  read  in
conjunction with the audited financial statements and the notes thereto for
the  year ended December 31, 1997 which are found in the Registrant's  Form
10-K  Report  for  1997 filed with the Securities and Exchange  Commission.
The December 31, 1997 balance sheet included herein has been taken from the
Registrant's 1997 Form 10-K Report.  Operating results for the three  month
period  ended March 31, 1998 are not necessarily indicative of the  results
that may be expected for the full year.

<PAGE>
         Southwest Royalties Institutional Income Fund XI-A, L.P.

                              Balance Sheets


                                                  March 31,     December 31,
                                                     1998           1997
                                                  ---------     ------------
                                                 (unaudited)
  Assets

Current assets:
 Cash and cash equivalents                    $      9,461         52,190
 Receivable from Managing General Partner           35,258         85,473
 Other receivable                                   49,498         53,536
                                                 ---------      ---------
    Total current assets                            94,217        191,199
                                                 ---------      ---------
Oil and gas properties - using the
 full-cost method of accounting                  2,103,239      2,105,397
  Less accumulated depreciation,
   depletion and amortization                      985,822        952,822
                                                 ---------      ---------
    Net oil and gas properties                   1,117,417      1,152,575
                                                 ---------      ---------
                                              $  1,211,634      1,343,774
                                                 =========      =========
  Liabilities and Partners' Equity

Partners' equity:
 General partners                             $   (22,753)       (12,839)
 Limited partners                                1,234,387      1,356,613
                                                 ---------      ---------
    Total partners' equity                       1,211,634      1,343,774
                                                 ---------      ---------
                                              $  1,211,634      1,343,774
                                                 =========      =========

<PAGE>
         Southwest Royalties Institutional Income Fund XI-A, L.P.

                         Statements of Operations
                               (unaudited)


                                                        Three Months Ended
                                                            March 31,
                                                          1998      1997
                                                          ----      ----
  Revenues

Income from net profits interests                   $    29,149    102,088
Interest                                                    573        250
Miscellaneous income                                          -      6,353
                                                        -------    -------
                                                         29,722    108,691
                                                        -------    -------

  Expenses

General and administrative                               18,473     17,575
Depreciation, depletion and amortization                 33,000     46,490
Miscellaneous expense                                     2,389          -
                                                        -------    -------
                                                         53,862     64,065
                                                        -------    -------
Net income (loss)                                   $  (24,140)     44,626
                                                        =======    =======
Net income (loss) allocated to:

 Managing General Partner                           $       797      7,629
                                                        =======    =======
 General partner                                    $        89        847
                                                        =======    =======
 Limited partners                                   $  (25,026)     36,150
                                                        =======    =======
  Per limited partner unit                          $      4.62       6.67
                                                        =======    =======

<PAGE>
         Southwest Royalties Institutional Income Fund XI-A, L.P.

                         Statements of Cash Flows
                               (unaudited)


                                                        Three Months Ended
                                                            March 31,
                                                          1998      1997
                                                          ----      ----
Cash flows from operating activities:

 Cash received from oil and gas sales               $    73,663    155,205
 Cash paid to suppliers                                (12,773)   (12,925)
 Interest received                                          573        250
                                                       --------   --------
  Net cash provided by operating activities              61,463    142,530
                                                       --------   --------
Cash flows from investing activities:

 Sale of oil and gas properties                           3,808          -
                                                       --------   --------
Cash flows used in financing activities:

 Distributions to partners                            (108,000)  (104,020)
                                                       --------   --------
Net increase (decrease) in cash and cash
 equivalents                                           (42,729)     38,510

 Beginning of period                                     52,190      6,595
                                                       --------   --------
 End of period                                      $     9,461     45,105
                                                       ========   ========

                                                               (continued)

<PAGE>
         Southwest Royalties Institutional Income Fund XI-A, L.P.

                   Statements of Cash Flows, continued
                               (unaudited)


                                                        Three Months Ended
                                                            March 31,
                                                          1998      1997
                                                          ----      ----
Reconciliation of net income (loss) to net
 cash provided by operating activities:

Net income (loss)                                   $  (24,140)     44,626

Adjustments to reconcile net income (loss) to
 net cash provided by operating activities:

  Depletion, depreciation and amortization               33,000     46,490
  Decrease in receivables                                44,514     46,764
  Increase in payables                                    8,089      4,650
                                                        -------    -------
Net cash provided by operating activities           $    61,463    142,530
                                                        =======    =======

<PAGE>
         Southwest Royalties Institutional Income Fund XI-A, L.P.
                     (a Delaware limited partnership)

                      Notes to Financial Statements


1.   Organization
     Southwest Royalties Institutional Income Fund XI-A, L.P. was organized
     under  the  laws  of the state of Delaware on May  5,  1992,  for  the
     purpose  of acquiring producing oil and gas properties and to  produce
     and market crude oil and natural gas produced from such properties for
     a  term  of 50 years, unless terminated at an earlier date as provided
     for  in the Partnership Agreement.  The Partnership will sell its  oil
     and  gas  production  to a variety of purchasers with  the  prices  it
     receives  being  dependent upon the oil and  gas  economy.   Southwest
     Royalties,  Inc.  serves as the Managing General  Partner  and  H.  H.
     Wommack, III, as the individual general partner.  Partnership  profits
     and losses, as well as all items of income, gain, loss, deduction,  or
     credit, will be credited or charged as follows:

                                                 Limited      General
                                                 Partners     Partners (1)
                                                 --------     --------
     Organization and offering expenses (2)      100%            -
     Acquisition costs                           100%            -
     Operating costs                              90%          10%
     Administrative costs (3)                     90%          10%
     Direct costs                                 90%          10%
     All other costs                              90%          10%
     Interest income earned on capital
      contributions                              100%            -
     Oil and gas revenues                         90%          10%
     Other revenues                               90%          10%
     Amortization                                100%            -
     Depletion allowances                        100%            -

          (1)   H.H.  Wommack,  III,  President  of  the  Managing  General
          Partner, is an additional general partner in the Partnership  and
          has  a  one percent interest in the Partnership.  Mr. Wommack  is
          the  majority  stockholder of the Managing General Partner  whose
          continued  involvement in Partnership management is important  to
          its  operations.  Mr. Wommack, as a general partner, shares  also
          in Partnership liabilities.

          (2)   Organization and Offering Expenses (including all  cost  of
          selling  and  organizing the offering) include a payment  by  the
          Partnership of an amount equal to three percent (3%)  of  Capital
          Contributions   for   reimbursement  of   such   expenses.    All
          Organization Costs (which excludes sales commissions and fees) in
          excess  of  three  percent  (3%) of  Capital  Contributions  with
          respect  to  a Partnership will be allocated to and paid  by  the
          Managing General Partner.

          (3)   Administrative  Costs will be paid from  the  Partnership's
          revenues;  however; Administrative Costs in the Partnership  year
          in  excess of two percent (2%) of Capital Contributions shall  be
          allocated to and paid by the Managing General Partner.

2.   Summary of Significant Accounting Policies
     The  interim financial information as of March 31, 1998, and  for  the
     three  months ended March 31, 1998, is unaudited.  Certain information
     and  footnote  disclosures normally included in  financial  statements
     prepared  in accordance with generally accepted accounting  principles
     have been condensed or omitted in this Form 10-Q pursuant to the rules
     and  regulations of the Securities and Exchange Commission.   However,
     in  the  opinion  of  management, these interim  financial  statements
     include all the necessary adjustments to fairly present the results of
     the interim periods and all such adjustments are of a normal recurring
     nature.  The interim consolidated financial statements should be  read
     in  conjunction  with the audited financial statements  for  the  year
     ended December 31, 1997.

<PAGE>
Item 2.   Management's  Discussion and Analysis of Financial Condition  and
          Results of Operations

General

Southwest Royalties Institutional Income Fund XI-A, L.P. (the "Partnership"
or  "Registrant") was organized as a Delaware limited partnership on May 5,
1992.  The offering of such limited partnership interests began August  20,
1992,  as  part  of  a shelf offering registered under the  name  Southwest
Royalties   Institutional   1992-93  Income   Program.    Minimum   capital
requirements  for the Partnership were met on December 10, 1992,  with  the
offering  of limited partnership interests concluding April 30,  1993.   At
the  conclusion  of  the  offering of limited  partnership  interests,  217
limited partners had purchased 5,418 units for $2,709,000.

The Partnership was formed to acquire royalty and net profits interests  in
producing  oil  and  gas properties, to produce and market  crude  oil  and
natural  gas  produced  from such properties, and  to  distribute  the  net
proceeds from operations to the limited and general partners.  Net revenues
from  producing  oil  and gas properties will not be  reinvested  in  other
revenue  producing  assets except to the extent that production  facilities
and wells are improved or reworked or where methods are employed to improve
or enable more efficient recovery of oil and gas reserves.

Increases   or   decreases   in  Partnership   revenues   and,   therefore,
distributions  to partners will depend primarily on changes in  the  prices
received  for  production,  changes in volumes of  production  sold,  lease
operating  expenses, enhanced recovery projects, offset drilling activities
pursuant  to farm-out arrangements, sales of properties, and the  depletion
of  wells.   Since  wells deplete over time, production  can  generally  be
expected to decline from year to year.

Well  operating costs and general and administrative costs usually decrease
with   production   declines;  however,  these  costs  may   not   decrease
proportionately.  Net income available for distribution to the partners  is
therefore expected to fluctuate in later years based on these factors.

Based  on  current conditions, management anticipates performing  workovers
during   1998  to  enhance  production.   The  Partnership  could  possibly
experience the following changes; a little less than normal decline in 1998
and thereafter, experience a steady decline.

<PAGE>
Results of Operations

A.  General Comparison of the Quarters Ended March 31, 1998 and 1997

The  following  table  provides certain information  regarding  performance
factors for the quarters ended March 31, 1998 and 1997:

                                               Three Months
                                                   Ended         Percentage
March 31,                                             Increase
                                              1998      1997    (Decrease)
                                              ----      ----    ----------
Average price per barrel of oil           $   11.72     22.54    (48%)
Average price per mcf of gas              $    1.66      2.52    (35%)
Oil production in barrels                     3,650     4,500    (19%)
Gas production in mcf                        37,400    39,800     (6%)
Income from net profits interests         $  29,149   102,088    (72%)
Partnership distributions                 $ 108,000   104,000       4%
Limited partner distributions             $  97,200    93,600       4%
Per unit distribution to limited
 partners                                 $   17.94     17.28       4%
Number of limited partner units               5,418     5,418

Revenues

The  Partnership's income from net profits interests decreased  to  $29,149
from $102,088 for the quarters ended March 31, 1998 and 1997, respectively,
a  decrease of 72%.  The principal factors affecting the comparison of  the
quarters ended March 31, 1998 and 1997 are as follows:

1.  The  average  price  for a barrel of oil received  by  the  Partnership
    decreased  during the quarter ended March 31, 1998 as compared  to  the
    quarter ended March 31, 1997 by 48%, or $10.82 per barrel, resulting in
    a  decrease  of  approximately  $48,700  in  income  from  net  profits
    interests.  Oil sales represented 41% of total oil and gas sales during
    the quarter ended March 31, 1998 and 50% during quarter ended March 31,
    1997.

    The  average  price  for  an  mcf of gas received  by  the  Partnership
    decreased during the same period by 35%, or $.86 per mcf, resulting  in
    a  decrease  of  approximately  $34,200  in  income  from  net  profits
    interests.

    The  total  decrease in income from net profits interests  due  to  the
    change  in prices received from oil and gas production is approximately
    $82,900.   The market price for oil and gas has been extremely volatile
    over  the  past  decade, and management expects  a  certain  amount  of
    volatility to continue in the foreseeable future.

<PAGE>
2.  Oil  production decreased approximately 850 barrels or 19%  during  the
    quarter ended March 31, 1998 as compared to the quarter ended March 31,
    1997,  resulting in a decrease of approximately $9,900 in  income  from
    net profits interests.

    Gas  production decreased approximately 2,400 mcf or 6% during the same
    period, resulting in a decrease of approximately $4,000 in income  from
    net profits interests.

    The  total  decrease in income from net profits interests  due  to  the
    change  in  production  is  approximately  $13,900.   The  decrease  is
    primarily a result of sharp natural decline of one well.

3.  Lease  operating  costs  and  production  taxes  were  25%  lower,   or
    approximately $24,100 less during the quarter ended March 31,  1998  as
    compared  to the quarter ended March 31, 1997.  The decrease  in  lease
    operating costs are due primarily to workover costs incurred in 1997.

Costs and Expenses

Total costs and expenses decreased to $53,862 from $64,065 for the quarters
ended  March  31,  1998  and 1997, respectively, a decrease  of  16%.   The
decrease is the result of lower depletion expense, partially offset  by  an
increase in general and administrative expense.

1.  General and administrative costs consists of independent accounting and
    engineering  fees,  computer services, postage,  and  Managing  General
    Partner personnel costs.  General and administrative costs increased 6%
    or  approximately  $900  during the quarter ended  March  31,  1998  as
    compared to the quarter ended March 31, 1997.

2.  Depletion expense decreased to $33,000 for the quarter ended March  31,
    1998  from  $44,000  for the same period in 1997.   This  represents  a
    decrease  of 25%.  Depletion is calculated using the units  of  revenue
    method  of  amortization based on a percentage of current period  gross
    revenues  to  total future gross oil and gas revenues, as estimated  by
    the  Partnership's  independent  petroleum  consultants.   Contributing
    factors  to  the  decline in depletion expense between the  comparative
    periods  were the decrease in oil and gas revenue and the  decrease  in
    the  price  of  oil  used to determine the Partnership's  reserves  for
    January 1, 1998 as compared to 1997.

<PAGE>
Liquidity and Capital Resources

The  primary source of cash is from operations, the receipt of income  from
interests in oil and gas properties.  The Partnership knows of no  material
change, nor does it anticipate any such change.

Cash  flows provided by operating activities were approximately $61,500  in
the  quarter ended March 31, 1998 as compared to approximately $142,500  in
the quarter ended March 31, 1997.  The primary source of the 1998 cash flow
from operating activities was profitable operations.

Cash  flows provided by investing activities were approximately  $3,800  in
the  quarter  ended  March 31, 1998.  There were  no  cash  flows  used  in
investing  activities  in the quarter ended March 31,  1997.   The  primary
source of the 1998 cash flows from investing activities were from sales  of
oil and gas properties.

Cash flows used in financing activities were approximately $108,000 in  the
quarter ended March 31, 1998 as compared to approximately $104,000  in  the
quarter ended March 31, 1997.  The only use in financing activities was the
distributions to partners.

Total  distributions during the quarter ended March 31, 1998 were  $108,000
of which $97,200 was distributed to the limited partners and $10,800 to the
general partners.  The per unit distribution to limited partners during the
quarter  ended March 31, 1998 was $17.94.  Total distributions  during  the
quarter ended March 31, 1997 were $104,000 of which $93,600 was distributed
to  the limited partners and $10,400 to the general partners.  The per unit
distribution  to limited partners during the quarter ended March  31,  1997
was $17.28.

The  primary source for the 1998 distributions of $108,000 was oil and  gas
operations of approximately $61,500.  The source for the 1997 distributions
of $104,000 was oil and gas operations of approximately $142,500, resulting
in excess cash for contingencies or subsequent distributions.

Since  inception of the Partnership, cumulative monthly cash  distributions
of  $1,463,448  have  been made to the partners.  As  of  March  31,  1998,
$1,336,798 or $246.73 per limited partner unit has been distributed to  the
limited partners, representing a 50% return of the capital contributed.

As  of March 31, 1998, the Partnership had approximately $94,200 in working
capital.   The  Managing  General Partner knows of no  unusual  contractual
commitments  and  believes  the  revenues  generated  from  operations  are
adequate to meet the needs of the Partnership.

<PAGE>
                       PART II. - OTHER INFORMATION


Item 1.   Legal Proceedings

          None

Item 2.   Changes in Securities

          None

Item 3.   Defaults Upon Senior Securities

          None

Item 4.   Submission of Matter to a Vote of Security Holders

          None

Item 5.   Other Information

          None

Item 6.   Exhibits and Reports on Form 8-K

          (a) Exhibits:

               27 Financial Data Schedule

               (b)  Reports on Form 8-K:

                     No  reports on Form 8-K were filed during the  quarter
               for which this report is filed.

<PAGE>
                                SIGNATURES


Pursuant  to the requirements 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.


                              SOUTHWEST ROYALTIES INSTITUTIONAL
                              INCOME FUND XI-A, L.P.
                              a Delaware limited partnership

                              By:  Southwest Royalties, Inc.
                                   Managing General Partner


                              By:  /s/ Bill E. Coggin
                                   ------------------------------
                                   Bill E. Coggin, Vice President
                                   and Chief Financial Officer


Date:  May 15, 1998

<PAGE>