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


                                    FORM 10-Q


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

                  For the quarterly period ended June 30, 1997

                                       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 No. 33-26097-07


                           PARKER & PARSLEY 90-B, L.P.
             (Exact name of Registrant as specified in its charter)


               Delaware                                      75-2329287
    (State or other jurisdiction of                      (I.R.S. Employer
    incorporation or organization)                    Identification Number)


303 West Wall, Suite 101, Midland, Texas                        79701
(Address of principal executive offices)                      (Zip code)


       Registrant's Telephone Number, including area code : (915) 683-4768

                                 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 1 of 11 pages.
                            Exhibit index on page 10.






                           PARKER & PARSLEY 90-B, L.P.

                                TABLE OF CONTENTS


                                                                          Page
                          Part I. Financial Information

Item 1.     Financial Statements

            Balance Sheets as of June 30, 1997 and
               December 31, 1996   .....................................    3

            Statements of Operations for the three and six
              months ended June 30, 1997 and 1996.......................    4

            Statement of Partners' Capital for the six months
              ended June 30, 1997.......................................    5

            Statements of Cash Flows for the six months ended
              June 30, 1997 and 1996....................................    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.   Financial Data Schedule

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




                                        2





                           PARKER & PARSLEY 90-B, L.P.
                        (A Delaware Limited Partnership)

                          Part I. Financial Information

Item 1.   Financial Statements
                                 BALANCE SHEETS
                                                     June 30,      December 31,
                                                       1997            1996
                                                   ------------    ------------
                                                    (Unaudited)
                 ASSETS

Current assets:
 Cash and cash equivalents, including interest
    bearing deposits of $341,570 at June 30 and
    $332,819 at December 31                        $    341,820    $    333,006
 Accounts receivable - oil and gas sales                320,643         564,298
                                                    -----------     -----------
        Total current assets                            662,463         897,304
                                                    -----------     -----------
Oil and gas properties - at cost,  based on the
 successful efforts accounting method                25,951,142      25,934,794
Accumulated depletion                               (17,934,572)    (17,601,394)
                                                    -----------     -----------
        Net oil and gas properties                    8,016,570       8,333,400
                                                    -----------     -----------
                                                   $  8,679,033    $  9,230,704
                                                    ===========     ===========
LIABILITIES AND PARTNERS' CAPITAL

Current liabilities:
 Accounts payable - affiliate                      $     92,437    $     68,524

Partners' capital:
 Managing general partner                                85,870          91,626
 Limited partners (32,264 interests)                  8,500,726       9,070,554
                                                    -----------     -----------
                                                      8,586,596       9,162,180
                                                    -----------     -----------
                                                   $  8,679,033    $  9,230,704
                                                    ===========     ===========



   The financial information included as of June 30, 1997 has been prepared by
          management without audit by independent public accountants.

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

                                        3





                           PARKER & PARSLEY 90-B, L.P.
                        (A Delaware Limited Partnership)

                            STATEMENTS OF OPERATIONS
                                   (Unaudited)



                                 Three months ended         Six months ended
                                      June 30,                  June 30,
                                ---------------------    -----------------------
                                  1997        1996          1997         1996
                                ---------   ---------    ----------   ----------
Revenues:
  Oil and gas                   $ 714,251   $ 905,148    $1,596,212   $1,725,231
  Interest                          6,654       4,875        12,635        8,661
  Salvage income from equipment
    disposals                         -           -             -          7,405
                                 --------    --------     ---------    ---------
                                  720,905     910,023     1,608,847    1,741,297
                                 --------    --------     ---------    ---------
Costs and expenses:
  Oil and gas production          354,861     350,763       699,620      713,010
  General and administrative       22,202      30,208        51,037       54,810
  Depletion                       165,251     176,025       333,178      360,884
  Loss on abandoned property          -         2,017           -          2,017
                                 --------    --------     ---------    ---------
                                  542,314     559,013     1,083,835    1,130,721
                                 --------    --------     ---------    ---------
Net income                      $ 178,591   $ 351,010    $  525,012   $  610,576
                                 ========    ========     =========    =========
Allocation of net income:
  Managing general partner      $   1,786   $   3,510    $    5,250   $    6,106
                                 ========    ========     =========    =========
  Limited partners              $ 176,805   $ 347,500    $  519,762   $  604,470
                                 ========    ========     =========    =========
Net income per limited
  partnership interest          $    5.48   $   10.78    $    16.11   $    18.74
                                 ========    ========     =========    =========
Distributions per limited
  partnership interest          $   14.45   $   13.59    $    33.77   $    24.80
                                 ========    ========     =========    =========


         The financial information included herein has been prepared by
           management without audit by independent public accountants.

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

                                        4





                           PARKER & PARSLEY 90-B, L.P.
                        (A Delaware Limited Partnership)

                         STATEMENT OF PARTNERS' CAPITAL
                                   (Unaudited)




                                     Managing
                                     general       Limited
                                     partner       partners          Total
                                    ---------     -----------     -----------

Balance at January 1, 1997          $  91,626     $ 9,070,554     $ 9,162,180

    Distributions                     (11,006)     (1,089,590)     (1,100,596)

    Net income                          5,250         519,762         525,012
                                     --------      ----------      ----------

Balance at June 30, 1997            $  85,870     $8,500,726      $ 8,586,596
                                     ========      ==========      ==========




         The financial information included herein has been prepared by
          management without audit by independent public accountants.

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

                                        5





                           PARKER & PARSLEY 90-B, L.P.
                        (A Delaware Limited Partnership)

                            STATEMENTS OF CASH FLOWS
                                   (Unaudited)

                                                           Six months ended
                                                                June 30,
                                                       ------------------------
                                                          1997          1996
                                                       -----------   ----------
Cash flows from operating activities:

  Net income                                           $   525,012   $  610,576
  Adjustments to reconcile net income to net
     cash provided by operating activities:
        Depletion                                          333,178      360,884
        Salvage income from equipment disposals                -         (7,405)
        Loss on abandoned property                             -          2,017
  Changes in assets and liabilities:
        (Increase) decrease in accounts receivable         243,655      (44,196)
        Increase (decrease) in accounts payable             23,913      (51,637)
                                                        ----------    ---------
          Net cash provided by operating activities      1,125,758      870,239
                                                        ----------    ---------
Cash flows from investing activities:

  Additions to oil and gas properties                      (16,348)      (8,426)
  Proceeds from salvage income on equipment disposals          -          7,405
                                                        ----------    ---------
          Net cash used in investing activities            (16,348)      (1,021)
                                                        ----------    ---------
Cash flows from financing activities:

  Cash distributions to partners                        (1,100,596)    (808,379)
                                                        ----------    ---------
Net increase in cash and cash equivalents                    8,814       60,839
Cash and cash equivalents at beginning of period           333,006      289,053
                                                        ---------     ---------
Cash and cash equivalents at end of period             $   341,820   $  349,892
                                                        ==========    =========


         The financial information included herein has been prepared by
          management without audit by independent public accountants.

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


                                        6





                           PARKER & PARSLEY 90-B, L.P.
                        (A Delaware Limited Partnership)

                          NOTES TO FINANCIAL STATEMENTS
                                  June 30, 1997
                                   (Unaudited)


Note 1.     Basis of presentation

In the opinion of  management,  the unaudited  financial  statements of Parker &
Parsley 90-B, L.P. (the "Partnership") as of June 30, 1997 and for the three and
six months  ended June 30, 1997 and 1996  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. These interim results
are not necessarily indicative of results for a full year.

Certain  information  and  footnote  disclosure  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, 1996, as filed with the Securities and Exchange Commission,  a copy
of  which is available upon  request by writing to Rich Dealy,  Controller,  303
West Wall, Suite 101, Midland, Texas 79701.

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

Results of Operations

Six months ended June 30, 1997 compared with six months ended
   June 30, 1996

Revenues:

The  Partnership's  oil  and  gas  revenues  decreased  7%  to  $1,596,212  from
$1,725,231  for the six months ended June 30, 1997 as compared to the six months
ended June 30,  1996.  The  decrease in revenues  resulted  from a 9% decline in
barrels of oil produced and sold,  an 8% decline in mcf of gas produced and sold
and a decrease in the average price  received per barrel of oil,  offset by a 6%
increase in the average price  received per mcf of gas. For the six months ended
June 30, 1997,  59,044  barrels of oil were sold compared to 64,600 for the same
period in 1996, a decrease of 5,556  barrels.  For the six months ended June 30,
1997,  161,148  mcf of gas were sold  compared to 175,687 for the same period in
1996,  a decrease  of 14,539 mcf.  The  decreases  in  production  volumes  were
primarily due to the decline  characteristics  of the  Partnership's oil and gas
properties.  Management  expects a certain  amount of decline in  production  to
continue in the future until the Partnership's economically recoverable reserves
are fully depleted.

                                        7





The average price  received per barrel of oil decreased slightly from $20.47 for
the  six months  ended  June 30,  1996 to  $20.40 for the same  period in  1997,
while the average price received per mcf of gas increased from $2.29 for the six
months ended  June 30, 1996 to  $2.43 for the same period in 1997.   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, 1997.

Salvage income totaling $7,405 was received during the six months ended June 30,
1996,  attributable  to  credits  received  from  the  disposal  of oil  and gas
equipment on one well that was plugged and abandoned in a prior year.

Costs and Expenses:

Total costs and expenses  decreased to $1,083,835  for the six months ended June
30, 1997 as compared to  $1,130,721  for the same period in 1996,  a decrease of
$46,886, or 4%. The decrease was due to declines in depletion, production costs,
general and administrative expenses ("G&A") and loss on abandoned property.

Production  costs  were  $699,620  for the six months  ended  June 30,  1997 and
$713,010  for the same  period in 1996,  resulting  in a $13,390  decrease.  The
decrease was primarily the result of a decline in workover costs.

G&A's  components are independent  accounting and engineering  fees and managing
general  partner  personnel  and  operating  costs.   During  this  period,  G&A
decreased,  in aggregate, 7% from $54,810 for the six months ended June 30, 1996
to $51,037 for the same period in 1997.

Depletion  was  $333,178  for the six months  ended June 30,  1997  compared  to
$360,884 for the same period in 1996.  This  represented a decrease in depletion
of $27,706, or 8%.

A loss on  abandoned  property  of $2,017 was  recognized  during the six months
ended June 30, 1996.  This loss  resulted  from the  abandonment  of a saltwater
disposal well.

Three months ended June 30, 1997 compared with three months ended
   June 30, 1996

Revenues:

The Partnership's  oil and gas revenues  decreased 21% to $714,251 from $905,148
for the three  months  ended June 30, 1997 as compared to the three months ended
June 30,  1996.  The  decrease in revenues  resulted  from a 15% decrease in the
average price  received per barrel of oil, an 11% decline in mcf of gas produced
and sold, a 10% decline in barrels of oil produced and sold and a 5% decrease in
the average  price  received per mcf of gas. For the three months ended June 30,
1997,  28,608 barrels of oil were sold compared to 31,694 for the same period in

                                        8





1996,  a decrease of 3,086  barrels.  For the three  months ended June 30, 1997,
80,021 mcf of gas were sold  compared to 89,543 for the same  period in 1996,  a
decrease of 9,522 mcf.  The  decreases  in  production  volumes  were due to the
decline characteristics of the Partnership's oil and gas properties.

The average price received per barrel of oil decreased $3.20 from $21.95 for the
three  months  ended June 30, 1996 to $18.75 for the same period in 1997,  while
the average price  received per mcf of gas decreased from $2.34 during the three
months ended June 30, 1996 to $2.22 in 1997.

Costs and Expenses:

Total costs and  expenses  decreased to $542,314 for the three months ended June
30,  1997 as compared  to  $559,013  for the same period in 1996,  a decrease of
$16,699, or 3%. This decrease was due to declines in depletion,  G&A and loss on
abandoned property, offset by an increase in production costs..

Production  costs were  $354,861  for the three  months  ended June 30, 1997 and
$350,763  for the  same  period  in 1996  resulting  in a $4,098  increase.  The
increase was the result of additional well repair and  maintenance,  offset by a
decline in workover costs.

G&A's  components are independent  accounting and engineering  fees and managing
general  partner  personnel  and  operating  costs.   During  this  period,  G&A
decreased,  in  aggregate,  27% from $30,208 for the three months ended June 30,
1996 to $22,202 for the same period in 1997.

Depletion  was $165,251  for the three  months  ended June 30, 1997  compared to
$176,025 for the same period in 1996.  This  represented a decrease in depletion
of $10,774, or 6%.

A loss on abandoned  property of $2,017 was  recognized  during the three months
ended June 30, 1996.  This loss  resulted  from the  abandonment  of a saltwater
disposal well.

Liquidity and Capital Resources

Net Cash Provided by Operating Activities

Net cash  provided by operating  activities  increased  $255,519  during the six
months  ended  June 30,  1997 from the same  period  ended June 30,  1996.  This
increase was  primarily  due to an increase in oil and gas sales  receipts and a
decrease in production costs paid.

Net Cash Used in Investing Activities

The Partnership's  principal investing  activities for the six months ended June
30, 1997 and 1996  included  expenditures  related to equipment  replacement  on
various oil and gas properties.

                                        9





Proceeds of $7,405 were received  during the six months ended June 30, 1996 from
the sale of oil and gas equipment on one well abandoned in a prior year.

Net Cash Used in Financing Activities

Cash  was   sufficient  for  the  six  months  ended  June  30,  1997  to  cover
distributions  to the partners of $1,100,596 of which $11,006 was distributed to
the managing  general  partner and $1,089,590 to the limited  partners.  For the
same period ended  June 30, 1996,  cash was sufficient for distributions to  the
partners of  $808,379 of which  $8,073 was distributed  to the  managing general
partner and $800,306 to the limited partners.

It is expected  that future net cash  provided by operating  activities  will be
sufficient for any capital expenditures and any distributions. As the production
from the properties declines, distributions are also expected to decrease.

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

(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.   Financial Data Schedule

(b)     Form 8-K - none


                                       10




                           PARKER & PARSLEY 90-B, L.P.
                        (A Delaware 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 90-B, L.P.

                                  By:  Parker & Parsley Development L.P.,
                                         Managing General Partner
                                       By:  Parker & Parsley Petroleum USA, Inc.
                                             ("PPUSA"), General Partner




Dated:  August 11, 1997           By:  /s/ Rich Dealy
                                       ---------------------------------
                                       Rich Dealy, Controller of PPUSA



                                       11