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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 June 30, 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 14.

<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  and
six month periods ended June 30, 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


                                                 June 30,      December 31,
                                                   1998            1997
                                                ---------      ------------
                                               (unaudited)

  Assets

Current assets:
 Cash and cash equivalents                   $      3,436          52,190
 Receivable from Managing General Partner               -          85,473
 Other receivable                                  10,063          53,536
                                                ---------       ---------
    Total current assets                           13,499         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                   1,174,319         952,822
                                                ---------       ---------
    Net oil and gas properties                    928,920       1,152,575
                                                ---------       ---------
                                             $    942,419       1,343,774
                                                =========       =========
  Liabilities and Partners' Equity

Current liabilities:
 Payable to Managing General Partner         $      1,809               -
 Distribution payable                                 137               -
                                                ---------       ---------
    Total current liabilities                       1,946               -
                                                ---------       ---------
Partners' equity:
 General partners                                (25,510)        (12,839)
 Limited partners                                 965,983       1,356,613
                                                ---------       ---------
    Total partners' equity                        940,473       1,343,774
                                                ---------       ---------
                                             $    942,419       1,343,774
                                                =========       =========

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

                         Statements of Operations
                               (unaudited)


                                 Three Months Ended      Six Months Ended
                                       June 30,              June 30,
                                    1998      1997        1998      1997

  Revenues

Income from net profits
 interests                    $    16,735     50,042     45,884    152,129
Interest                              374        496        947        746
Miscellaneous income                    -     13,553          -     19,906
                                  -------    -------    -------    -------
                                   17,109     64,091     46,831    172,781
                                  -------    -------    -------    -------

  Expenses

General and administrative         15,067     11,212     33,540     28,787
Depreciation, depletion and
 amortization                      41,000     35,490     74,000     81,980
Provision for impairment of
 oil and gas properties           147,497          -    147,497          -
Miscellaneous expense              52,706          -     55,095          -
                                  -------    -------    -------    -------
                                  256,270     46,702    310,132    110,767
                                  -------    -------    -------    -------
Net income (loss)             $ (239,161)     17,389  (263,301)     62,014
                                  =======    =======    =======    =======
Net income (loss) allocated to:

 Managing General Partner     $       184      3,539      1,196     11,168
                                  =======    =======    =======    =======
 General Partner              $        20        394        133      1,241
                                  =======    =======    =======    =======
 Limited partners             $ (239,365)     13,456  (264,630)     49,605
                                  =======    =======    =======    =======
  Per limited partner unit    $   (44.18)       2.48    (48.84)       9.16
                                  =======    =======    =======    =======

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

                         Statements of Cash Flows
                               (unaudited)


                                                        Six Months Ended
                                                             June 30,
                                                          1998      1997

Cash flows from operating activities:

 Cash received from income from net
  profits interests                                 $    86,379    237,962
 Cash paid to suppliers                                    (25)   (28,670)
 Interest received                                          947        746
                                                        -------    -------
  Net cash provided by operating activities              87,301    210,038
                                                        -------    -------
Cash flows provided by investing activities:

 Cash received from sale of oil and gas
  property interest                                       3,808          -
                                                        -------    -------
Cash flows used in financing activities:

 Distributions to partners                            (139,863)  (207,020)
                                                        -------    -------
Net increase (decrease) in cash and cash
 equivalents                                           (48,754)      3,018

 Beginning of period                                     52,190      6,595
                                                        -------    -------
 End of period                                      $     3,436      9,613
                                                        =======    =======

                                                               (continued)

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

                   Statements of Cash Flows, continued
                               (unaudited)


                                                        Six Months Ended
                                                             June 30,
                                                          1998      1997

Reconciliation of net income (loss) to net
 cash provided by operating activities:

Net income (loss)                                   $ (263,301)     62,014

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

  Depreciation, depletion and amortization               74,000     81,980
  Provision for impairment of oil and gas
   properties                                           147,497          -
  Decrease in receivables                                40,495     65,927
  Increase in payables                                   88,610        117
                                                        -------    -------
Net cash provided by operating activities           $    87,301    210,038
                                                        =======    =======

<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)
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 and the offering  concluding  on
April 30, 1993 with total limited partner contributions of $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 does not  anticipate  performing
workovers.  The Partnership could possibly experience a steady decline.

Oil and Gas Properties

Oil  and  gas  properties  are accounted for at cost  under  the  full-cost
method.  Under this method, all productive and nonproductive costs incurred
in  connection with the acquisition, exploration and development of oil and
gas  reserves  are capitalized.  Gain or loss on the sale of  oil  and  gas
properties  is not recognized unless significant oil and gas  reserves  are
involved.

The  Partnership's policy for depreciation, depletion and  amortization  of
oil  and  gas  properties is computed under the units  of  revenue  method.
Under the units of revenue method, depreciation, depletion and amortization
is  computed  on  the  basis of current gross revenues from  production  in
relation  to future gross revenues, based on current prices, from estimated
production of proved oil and gas reserves.

Should the net capitalized costs exceed the estimated present value of  oil
and gas reserves, discounted at 10%, such excess costs would be charged  to
current expense.  The Partnership reduced the net capitalized costs of  oil
and  gas  properties  in the quarter ended June 30, 1998  by  approximately
$147,497.   The write-down has the effect of reducing net income,  but  did
not  affect cash flow or partner distributions.  A continuation of the  oil
price  environment experienced during the first half of 1998 will  have  an
adverse  affect on the Company's revenues and operating cash  flow.   Also,
further declines in oil prices could result in additional decreases in  the
carrying value of the Company's oil and gas properties.




<PAGE>
Results of Operations

A.  General Comparison of the Quarters Ended June 30, 1998 and 1997

The  following  table  provides certain information  regarding  performance
factors for the quarters ended June 30, 1998 and 1997:

                                               Three Months
                                                  Ended          Percentage
                                                 June 30,         Increase
                                              1998       1997    (Decrease)
                                              ----       ----    ----------

Average price per barrel of oil          $    11.90     18.62    (36%)
Average price per mcf of gas             $     1.99      1.98       1%
Oil production in barrels                     3,550     3,900     (9%)
Gas production in mcf                        27,100    41,500    (35%)
Income from net profits interests        $   16,735    50,042    (67%)
Partnership distributions                $   32,000   103,000    (70%)
Limited partner distributions            $   28,800    92,700    (70%)
Per unit distribution to limited
 partners                                $     5.32     17.11    (70%)
Number of limited partner units               5,418     5,418

Revenues

The  Partnership's income from net profits interests decreased  to  $16,735
from $50,042 for the quarters ended June 30, 1998 and 1997, respectively, a
decrease  of  67%.  The principal factors affecting the comparison  of  the
quarters ended June 30, 1998 and 1997 are as follows:

1.  The  average  price  for a barrel of oil received  by  the  Partnership
    decreased  during the quarter ended June 30, 1998 as  compared  to  the
    quarter ended June 30, 1997 by 36%, or $6.72 per barrel, resulting in a
    decrease of approximately $26,208 in income from net profits interests.
    Oil sales represented 44% and 47% of total oil and gas sales during the
    quarters ended June 30, 1998 and 1997.

    The  average  price  for  an  mcf of gas received  by  the  Partnership
    increased  during the same period by 1%, or $.01 per mcf, resulting  in
    an increase of approximately $415 in income from net profits interests.

    The  net total decrease in income from net profits interests due to the
    change  in prices received from oil and gas production is approximately
    $25,793.   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 350 barrels or  9%  during  the
    quarter  ended June 30, 1998 as compared to the quarter ended June  30,
    1997,  resulting in a decrease of approximately $4,165 in  income  from
    net profits interests.

    Gas  production  decreased approximately 14,400 mcf or 35%  during  the
    same period, resulting in a decrease of approximately $28,656 in income
    from net profits interests.

    The  total  decrease in income from net profits interests  due  to  the
    change  in  production  is  approximately  $32,821.   The  decrease  is
    primarily a result of the sale of one gas well, downtime on a major gas
    well and a gas plant explosion which effected gas production on several
    wells for the month of April 1998.

3.  Lease  operating  costs  and  production  taxes  were  25%  lower,   or
    approximately $25,424 less during the quarter ended June  30,  1998  as
    compared to the quarter ended June 30, 1997.  The decrease is primarily
    attributable to the pulling expense incurred on an injector well during
    1997.

Costs and Expenses

Total  costs  and  expenses  increased to $256,270  from  $46,702  for  the
quarters  ended June 30, 1998 and 1997, respectively, an increase of  449%.
The increase is the result of higher general and administrative expense and
depletion 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
    34%  or approximately $3,855 during the quarter ended June 30, 1998  as
    compared  to the quarter ended June 30, 1997.  Increase in general  and
    administrative costs are the result of higher accounting  fees  due  to
    the  necessity of contracting out preparation of tax depletion and  K-1
    schedules.

2.  Depletion expense increased to $41,000 for the quarter ended  June  30,
    1998  from  $33,000  for the same period in 1997.  This  represents  an
    increase  of 24%.  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 increase in depletion expense between the  comparative
    periods  were  the decrease in the price of oil used to  determine  the
    Partnership's reserves for January 1, 1998 as compared  to  1997.   The
    Partnership reduced the net capitalized costs of oil and gas properties
    in  the  quarter  ended June 30, 1998 by approximately  $147,497.   The
    write-down  has the effect of reducing net income, but did  not  affect
    cash flow or partner distributions.

3. The  Partnership entered into a purchase agreement on the Tar Baby lease
   that  guaranteed net income each month from October 1994 through January
   1998.    This  income  was  recorded  on  the  Partnerships   books   as
   miscellaneous income.  Based on new information obtained  in  May  1998,
   an  adjustment  of $52,706 was found to be necessary.   This  adjustment
   was  recorded as miscellaneous expense on the Partnerships books for the
   quarter ended June 30, 1998.

<PAGE>
B.  General  Comparison of the Six Month Periods Ended June  30,  1998  and
    1997

The  following  table  provides certain information  regarding  performance
factors for the six month periods ended June 30, 1998 and 1997:

                                                Six Months
                                                  Ended          Percentage
                                                 June 30,         Increase
                                              1998       1997    (Decrease)
                                              ----       ----    ----------

Average price per barrel of oil          $    11.81     20.48     (42%)
Average price per mcf of gas             $     1.80      2.21     (19%)
Oil production in barrels                     7,200     8,500     (15%)
Gas production in mcf                        64,500    82,600     (22%)
Income from net profits interests        $   45,884   152,129     (70%)
Partnership distributions                $  140,000   207,000     (33%)
Limited partner distributions            $  126,000   186,300     (33%)
Per unit distribution to limited
 partners                                $    23.26     34.39     (33%)
Number of limited partner units               5,418     5,418

Revenues

The  Partnership's income from net profits interests decreased  to  $45,884
from   $152,129  for  the  six  months  ended  June  30,  1998  and   1997,
respectively,  a  decrease  of 70%.  The principal  factors  affecting  the
comparison of the six months ended June 30, 1998 and 1997 are as follows:

1.  The  average  price  for a barrel of oil received  by  the  Partnership
    decreased during the six months ended June 30, 1998 as compared to  the
    six  months ended June 30, 1997 by 42%, or $8.67 per barrel,  resulting
    in  a  decrease  of  approximately $73,695 in income from  net  profits
    interests.  Oil sales represented 42% of total oil and gas sales during
    the  six  months ended June 30, 1998 as compared to 49% during the  six
    months ended June 30, 1997.

    The  average  price  for  an  mcf of gas received  by  the  Partnership
    decreased during the same period by 19%, or $.41 per mcf, resulting  in
    a  decrease  of  approximately  $33,866  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
    $107,561.  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 1,300 barrels or 15% during the
    six months ended June 30, 1998 as compared to the six months ended June
    30,  1997,  resulting in a decrease of approximately $15,350 in  income
    from net profits interests.

    Gas  production  decreased approximately 18,100 mcf or 22%  during  the
    same period, resulting in a decrease of approximately $32,580 in income
    from net profits interests.

    The  total  decrease in income from net profits interests  due  to  the
    change  in  production  is  approximately  $47,930.   The  decrease  is
    primarily a result of the sale of one gas well, downtime on a major gas
    well and a gas plant explosion which effected gas production on several
    wells for the month of April 1998.

3.  Lease  operating  costs  and  production  taxes  were  25%  lower,   or
    approximately $49,594 less during the six months ended June 30, 1998 as
    compared  to  the  six  months ended June 30, 1997.   The  decrease  is
    primarily  attributable to the pulling expense incurred on an  injector
    well during 1997.

Costs and Expenses

Total  costs and expenses increased to $310,132 from $110,767 for  the  six
months  ended  June 30, 1998 and 1997, respectively, an increase  of  180%.
The  increase  is  the result of higher depletion expense and  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
    17%  or approximately $4,753 during the six months ended June 30,  1998
    as compared to the six months ended June 30, 1997.

2.  Depletion  expense decreased to $74,000 for the six months  ended  June
    30,  1998 from $77,000 for the same period in 1997.  This represents  a
    decrease  of  4%.  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 revenues and the decrease  in
    the  price  of  oil  used to determine the Partnership's  reserves  for
    January  1, 1998 as compared to 1997.  The Partnership reduced the  net
    capitalized costs of oil and gas properties in the quarter  ended  June
    30,  1998 by approximately $147,497.  The write-down has the effect  of
    reducing  net  income,  but  did  not  affect  cash  flow  or   partner
    distributions.

3. The  Partnership entered into a purchase agreement on the Tar Baby lease
   that  guaranteed net income each month from October 1994 through January
   1998.    This  income  was  recorded  on  the  Partnerships   books   as
   miscellaneous income.  Based on new information obtained  in  May  1998,
   an  adjustment  of $52,706 was found to be necessary.   This  adjustment
   was  recorded as miscellaneous expense on the Partnerships books for the
   quarter ended June 30, 1998.

<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 $87,300  in
the six months ended June 30, 1998 as compared to approximately $210,000 in
the  six  months ended June 30, 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  six months ended June 30, 1998.  There were no cash flows provided  by
investing activities in the six months ended June 30, 1997.  The source  of
the  1998  cash  flow from investing activities were sale of  oil  and  gas
properties.

Cash flows used in financing activities were approximately $140,000 in  the
six months ended June 30, 1998 as compared to approximately $207,000 in the
six  months ended June 30, 1997.  The only use in financing activities  was
the distributions to partners.

Total distributions during the six months ended June 30, 1998 were $140,000
of  which  $126,000 was distributed to the limited partners and $14,000  to
the general partners.  The per unit distribution to limited partners during
the  six months ended June 30, 1997 was $23.26.  Total distributions during
the  six  months  ended June 30, 1997 were $207,000 of which  $186,300  was
distributed  to  the limited partners and $20,700 to the general  partners.
The  per unit distribution to limited partners during the six months  ended
June 30, 1997 was $34.39.

The  sources  for  the  1998 distributions of $140,000  were  oil  and  gas
operations of approximately $87,300, the sale of oil and gas properties  of
approximately  $3,800.  The source for the 1997 distributions  of  $207,000
was  oil and gas operations of approximately $210,000, resulting in  excess
cash for contingencies or subsequent distributions.

Since  inception of the Partnership, cumulative monthly cash  distributions
of  $1,495,448  have  been made to the partners.   As  of  June  30,  1998,
$1,365,598 or $252.05 per limited partner unit has been distributed to  the
limited partners, representing a 50% return of the capital contributed.

As  of  June 30, 1998, the Partnership had approximately $11,553 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.

Information Systems for the Year 2000

The  Managing  General Partner provides all data processing  needs  of  the
Partnership.   The Managing General Partner has reviewed and evaluated  its
information  systems  to determine if its systems accurately  process  data
referencing   the   year   2000.   Primarily  all   necessary   programming
modifications  to  correct year 2000 referencing in  the  Managing  General
Partners  internal accounting and operating systems have been made to-date.
However  the  Managing General Partner has not completed its evaluation  of
its vendors and suppliers systems to determine the effect, if any, the non-
compliance  of  such systems would have on the operation  of  the  Managing
General Partnership or the operations 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 ended June 30, 1998.

<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


Date: August 15, 1998            By:   /s/ Bill E. Coggin
                                       Bill E. Coggin, Vice
                                       President
                                       and Chief Financial Officer


<PAGE>