UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549


                                    FORM 10-Q

                Quarterly Report Pursuant to Section 13 or 15(d)
                     of the Securities Exchange Act of 1934


                  For the quarterly period ended June 30, 2000


                          Commission File No. 2-81398A

                           PARKER & PARSLEY 83-A, LTD.
             (Exact name of Registrant as specified in its charter)

               Texas                                      75-1891384
-----------------------------------------            ---------------------
    (State or other jurisdiction of                    (I.R.S. Employer
    incorporation or organization)                   Identification Number)


1400 Williams Square West, 5205 N. O'Connor Blvd., Irving, Texas       75039
----------------------------------------------------------------     ---------
           (Address of principal executive offices)                  (Zip code)

       Registrant's Telephone Number, including area code : (972) 444-9001

                                 Not applicable

              (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>



                           PARKER & PARSLEY 83-A, LTD.

                                TABLE OF CONTENTS


                                                                        Page

                          Part I. Financial Information

Item 1.    Financial Statements

           Balance Sheets as of June 30, 2000 and
              December 31, 1999.......................................    3

           Statements of Operations for the three and six
             months ended June 30, 2000 and 1999......................    4

           Statement of Partners' Capital for the six months
             ended June 30, 2000......................................    5

           Statements of Cash Flows for the six months
             ended June 30, 2000 and 1999.............................    6

           Notes to Financial Statements..............................    7

Item 2.    Management's Discussion and Analysis of Financial
             Condition and Results of Operations......................    7


                           Part II. Other Information

Item 6.    Exhibits and Reports on Form 8-K...........................   10

           27.1  Financial Data Schedule

           Signatures.................................................   11




                                        2


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                           PARKER & PARSLEY 83-A, LTD.
                          (A Texas Limited Partnership)

                          Part I. Financial Information

Item 1.      Financial Statements
<TABLE>
                                 BALANCE SHEETS
                                                    June 30,      December 31,
                                                      2000           1999
                                                  ------------    ------------
                                                   (Unaudited)

                      ASSETS
<S>                                               <C>             <C>
Current assets:
     Cash                                         $    144,516    $    143,823
     Accounts receivable - oil and gas sales           223,512         189,995
                                                   -----------     -----------
          Total current assets                         368,028         333,818
                                                   -----------     -----------
Oil and gas properties - at cost, based on the
  successful efforts accounting method              16,900,232      16,892,307
Accumulated depletion                              (15,581,461)    (15,541,219)
                                                   -----------     -----------
          Net oil and gas properties                 1,318,771       1,351,088
                                                   -----------     -----------
                                                  $  1,686,799    $  1,684,906
                                                   ===========     ===========
LIABILITIES AND PARTNERS' CAPITAL

Current liabilities:
  Accounts payable - affiliate                    $     49,377    $     32,852

Partners' capital:
  General partners                                     188,350         182,491
  Limited partners (19,505 interests)                1,449,072       1,469,563
                                                   -----------     -----------
                                                     1,637,422       1,652,054
                                                   -----------     -----------
                                                  $  1,686,799    $  1,684,906
                                                   ===========     ===========
</TABLE>

  The financial information included as of June 30, 2000 has been prepared by
 the managing general partner without audit by independent public accountants.

   The accompanying notes are an integral part of these financial statements.

                                        3


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                           PARKER & PARSLEY 83-A, LTD.
                          (A Texas Limited Partnership)

                            STATEMENTS OF OPERATIONS
                                   (Unaudited)


<TABLE>
                                   Three months ended      Six months ended
                                        June 30,                June 30,
                                 ---------------------   ---------------------
                                   2000        1999        2000        1999
                                 ---------   ---------   ---------   ---------
<S>                              <C>         <C>         <C>         <C>
Revenues:
  Oil and gas                    $ 447,770   $ 265,731   $ 864,836   $ 439,976
  Interest                           2,956       1,145       5,424       2,231
                                  --------    --------    --------    --------
                                   450,726     266,876     870,260     442,207
                                  --------    --------    --------    --------
Costs and expenses:
  Oil and gas production           226,945     187,295     443,276     369,495
  General and administrative        14,886       8,752      27,789      15,845
  Depletion                         18,632      30,992      40,238      94,024
                                  --------    --------    --------    --------
                                   260,463     227,039     511,303     479,364
                                  --------    --------    --------    --------
Net income (loss)                $ 190,263   $  39,837   $ 358,957   $ (37,157)
                                  ========    ========    ========    ========
Allocation of net income (loss):
  General partners               $  50,724   $  14,803   $  96,236   $   5,476
                                  ========    ========    ========    ========
  Limited partners               $ 139,539   $  25,034   $ 262,721   $ (42,633)
                                  ========    ========    ========    ========
Net income (loss) per limited
  partnership interest           $    7.15   $    1.28   $   13.47   $   (2.19)
                                  ========    ========    ========    ========
</TABLE>


         The financial information included herein has been prepared by
  the managing general partner without audit by independent public accountants.

   The accompanying notes are an integral part of these financial statements.

                                        4


<PAGE>



                           PARKER & PARSLEY 83-A, LTD.
                          (A Texas Limited Partnership)

                         STATEMENT OF PARTNERS' CAPITAL
                                   (Unaudited)



<TABLE>
                                     General        Limited
                                     partners       partners        Total
                                    ----------     ----------     ----------
<S>                                 <C>            <C>            <C>

Balance at January 1, 2000          $  182,491     $1,469,563     $1,652,054

   Distributions                       (90,377)      (283,212)      (373,589)

   Net income                           96,236        262,721        358,957
                                     ---------      ---------      ---------

Balance at June 30, 2000            $  188,350     $1,449,072     $1,637,422
                                     =========      =========      =========

</TABLE>







         The financial information included herein has been prepared by
  the managing general partner without audit by independent public accountants.

   The accompanying notes are an integral part of these financial statements.

                                        5


<PAGE>



                           PARKER & PARSLEY 83-A, LTD.
                          (A Texas Limited Partnership)

                            STATEMENTS OF CASH FLOWS
                                   (Unaudited)

<TABLE>
                                                        Six months ended
                                                             June 30,
                                                     ------------------------
                                                        2000          1999
                                                     ----------    ----------
<S>                                                  <C>           <C>
Cash flows from operating activities:
  Net income (loss)                                  $  358,957    $  (37,157)
  Adjustments to reconcile net income (loss) to
     net cash provided by operating activities:
       Depletion                                         40,238        94,024
  Changes in assets and liabilities:
     Accounts receivable                                (33,517)      (44,816)
     Accounts payable                                    16,525        18,783
                                                      ---------     ---------
         Net cash provided by operating activities      382,203        30,834
                                                      ---------     ---------
Cash flows from investing activities:
  Additions to oil and gas properties                    (7,921)       (1,192)
  Proceeds from asset disposition                           -             810
                                                      ---------     ---------
         Net cash used in investing activities           (7,921)         (382)
                                                      ---------     ---------
Cash flows used in financing activities:
  Cash distributions to partners                       (373,589)       (1,391)
                                                      ---------     ---------
Net increase in cash                                        693        29,061
Cash at beginning of period                             143,823        94,700
                                                      ---------     ---------
Cash at end of period                                $  144,516    $  123,761
                                                      =========     =========
</TABLE>





         The financial information included herein has been prepared by
  the managing general partner without audit by independent public accountants.

   The accompanying notes are an integral part of these financial statements.

                                        6


<PAGE>



                           PARKER & PARSLEY 83-A, LTD.
                          (A Texas Limited Partnership)

                          NOTES TO FINANCIAL STATEMENTS
                                  June 30, 2000
                                   (Unaudited)

Note 1.     Organization and nature of operations

Parker &  Parsley  83-A,  Ltd.  (the  "Partnership")  is a  limited  partnership
organized in 1983 under the laws of the State of Texas.

The  Partnership  engages in oil and gas development and production in Texas and
is not involved in any industry segment other than oil and gas.

Note 2.     Basis of presentation

In  the  opinion  of  management,  the  unaudited  financial  statements  of the
Partnership  as of June 30, 2000 and for the three and six months ended June 30,
2000 and 1999 include all  adjustments  and accruals  consisting  only of normal
recurring accrual adjustments which are necessary for a fair presentation of the
results  for  the  interim  period.  However,  these  interim  results  are  not
necessarily indicative of results for a full year. Certain reclassifications may
have been made to the June 30, 1999 financial  statements to conform to the June
30, 2000 financial statement presentations.

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.  The financial statements
should  be read in  conjunction  with the  financial  statements  and the  notes
thereto  contained in the  Partnership's  Report on Form 10-K for the year ended
December 31, 1999, as filed with the Securities and Exchange Commission,  a copy
of which is available upon request by writing to Rich Dealy,  Vice President and
Chief Accounting Officer,  5205 North O'Connor  Boulevard,  1400 Williams Square
West, Irving, Texas 75039-3746.

Item 2.     Management's Discussion and Analysis of Financial Condition
              and Results of Operations (1)

Results of Operations

Six months ended June 30, 2000 compared with six months ended June 30, 1999

Revenues:

The  Partnership's  oil and gas revenues  increased  97% to $864,836 for the six
months  ended June 30, 2000 as compared to $439,976 for the same period in 1999.
The increase in revenues resulted from higher average prices received, offset by
a decrease in production. For the six months ended June 30, 2000, 21,455 barrels
of oil,  11,696 barrels of  natural gas  liquids ("NGLs") and  46,838 mcf of gas

                                        7


<PAGE>



were sold,  or 40,957  barrel of oil  equivalents  ("BOEs").  For the six months
ended June 30, 1999,  21,076  barrels of oil,  12,312 barrels of NGLs and 52,185
mcf of gas were sold, or 42,086 BOEs.

The average price  received per barrel of oil increased  $14.64,  or 113%,  from
$12.91 for the six months  ended June 30,  1999 to $27.55 for the same period in
2000.  The average price received per barrel of NGLs  increased  $7.09,  or 98%,
from  $7.21  during the six  months  ended June 30,  1999 to $14.30 for the same
period in 2000.  The average  price  received per mcf of gas  increased 49% from
$1.52  during the six months ended June 30, 1999 to $2.27 for the same period in
2000. The market price for oil and gas has been  extremely  volatile in the past
decade and  management expects a certain amount of volatility to continue in the
foreseeable  future.  The  Partnership may therefore sell its future oil and gas
production at average  prices lower or higher than that received  during the six
months ended June 30, 2000.

The volatility of commodity prices has had, and continues to have, a significant
impact on the Partnership's revenues and operating cash flow and could result in
additional  decreases to the  carrying  value of the  Partnership's  oil and gas
properties.

Costs and Expenses:

Total costs and expenses increased to $511,303 for the six months ended June 30,
2000 as  compared  to  $479,364  for the same  period in 1999,  an  increase  of
$31,939, or 7%. This increase was due to higher production costs and general and
administrative expenses ("G&A"), offset by a decline in depletion.

Production  costs  were  $443,276  for the six months  ended  June 30,  2000 and
$369,495 for the same period in 1999  resulting in a $73,781  increase,  or 20%.
The increase was the result of additional  well  maintenance  and workover costs
incurred  to  stimulate  well  production  and  higher  production  taxes due to
higher oil and gas prices.

G&A's  components are independent  accounting and engineering  fees and managing
general  partner  personnel  and  operating  costs.   During  this  period,  G&A
increased, in aggregate, 75% from $15,845 for the six months ended June 30, 1999
to $27,789 for the same period in 2000  primarily due to a higher  allocation of
the managing general partner's G&A being allocated (limited to 3% of oil and gas
revenues) as a result of increased oil and gas revenues.

Depletion was $40,238 for the six months ended June 30, 2000 compared to $94,024
for the same period in 1999, a decrease of $53,786,  or 57%.  This  decrease was
primarily attributable to an increase in proved reserves during the period ended
June 30,  2000 due to higher  commodity  prices,  offset by an  increase  in oil
production of 379 barrels for the six months ended June 30, 2000 compared to the
same period in 1999.

                                        8


<PAGE>


Three months ended June 30, 2000 compared with three months ended June 30, 1999

Revenues:

The Partnership's  oil and gas revenues  increased 69% to $447,770 for the three
months  ended June 30, 2000 as compared to $265,731 for the same period in 1999.
The increase in revenues resulted from higher average prices received, offset by
a decrease in  production.  For the three  months  ended June 30,  2000,  10,617
barrels of oil, 6,110 barrels of NGLs and 23,850 mcf of gas were sold, or 20,702
BOEs.  For the three months ended June 30, 1999,  10,609  barrels of oil,  7,264
barrels of NGLs and 28,207 mcf of gas were sold, or 22,574 BOEs.

The average  price  received per barrel of oil  increased  $12.81,  or 86%, from
$14.85 for the three months ended June 30, 1999 to $27.66 for the same period in
2000.  The average price received per barrel of NGLs  increased  $5.83,  or 68%,
from $8.57  during the three  months  ended June 30, 1999 to $14.40 for the same
period in 2000. The average price received per mcf of gas increased 70% to $2.77
for the three months ended June 30, 2000 from $1.63 for the same period in 1999.

Costs and Expenses:

Total costs and  expenses  increased to $260,463 for the three months ended June
30, 2000 as compared  to  $227,039  for the same period in 1999,  an increase of
$33,424,  or 15%.  This  increase  was due to higher  production  costs and G&A,
offset by a decline in depletion.

Production  costs were  $226,945  for the three  months  ended June 30, 2000 and
$187,295 for the same period in 1999  resulting in a $39,650  increase,  or 21%.
This increase was the result of additional  workover costs and well  maintenance
expense incurred to stimulate well production and higher production taxes due to
higher oil and gas prices.

During this period, G&A increased,  in aggregate,  70% from $8,752 for the three
months ended June 30, 1999 to $14,886 for the same period in 2000  primarily due
to a higher  allocation of the managing  general  partner's G&A being  allocated
(limited to 3% of oil and gas  revenues)  as a result of  increased  oil and gas
revenues.

Depletion  was $18,632  for the three  months  ended June 30,  2000  compared to
$30,992  for the same  period in 1999,  a  decrease  of  $12,360,  or 40%.  This
decrease was primarily attributable to an increase in proved reserves during the
period ended June 30, 2000 as a result of higher commodity prices.

Liquidity and Capital Resources

Net Cash Provided by Operating Activities

Net cash  provided by operating  activities  increased  $351,369  during the six
months  ended June 30,  2000 from the same  period in 1999.  This  increase  was
attributable to an increase in oil and gas sales receipts of $439,352, offset by
increases in operating costs paid of $70,995 and G&A expenses paid of $16,988.

                                        9


<PAGE>


Net Cash Used in Investing Activities

The  Partnership's  investment  activities  during the six months ended June 30,
2000 and 1999 included expenditures related to equipment upgrades on various oil
and gas properties.

Proceeds from asset  dispositions  of $810 were  received  during the six months
ended June 30, 1999 from equipment credits on active properties.

Net Cash Used in Financing Activities

For the six months ended June 30, 2000, cash  distributions to the partners were
$373,589,  of which $90,377 was distributed to the general partners and $283,212
to the limited  partners.  For the six months  ended June 30,  1999,  $1,391 was
distributed  to the  general  partners  with  no  distribution  to  the  limited
partners.

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

(1)   "Item 2. Management's  Discussion and Analysis of Financial  Condition and
      Results of Operations"  contains  forward looking  statements that involve
      risks and uncertainties.  Accordingly, no assurances can be given that the
      actual  events  and  results  will not be  materially  different  than the
      anticipated results described in the forward looking statements.


                           Part II. Other Information

Item 6.     Exhibits and Reports on Form 8-K

(a)    Exhibits

       27.1   Financial Data Schedule

(b)    Reports on Form 8-K - none


                                       10


<PAGE>


                           PARKER & PARSLEY 83-A, LTD.
                          (A Texas Limited Partnership)



                               S I G N A T U R E S



      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.

                                            PARKER & PARSLEY 83-A, LTD.

                                       By:  Pioneer Natural Resources USA, Inc.
                                             Managing General Partner

Dated:  August 7, 2000                By:    /s/ Rich Dealy
                                            ------------------------------------
                                            Rich Dealy, Vice President and
                                            Chief Accounting Officer

                                       11


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