BLACKROCK 1998 TERM TRUST INC
N-30D, 1998-08-25
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- --------------------------------------------------------------------------------
                       THE BLACKROCK 1998 TERM TRUST INC.
                       SEMI-ANNUAL REPORT TO SHAREHOLDERS
                          REPORT OF INVESTMENT ADVISER
- --------------------------------------------------------------------------------


                                                                   July 31, 1998

Dear Shareholder:

      Domestic  bonds  provided  investors  with modest total returns during the
past six months,  as interest rates generally  fell.  Supporting the bond market
was favorable inflation news and the belief that the Federal Reserve is unlikely
to raise short-term interest rates in the immediate future.

      U.S.  economic  growth has slowed of late after a robust first  quarter of
1998.  We  expect  the  fallout  from the  Asian  fiscal  crisis  to  quash  any
significant  rebound in U.S.  growth  for the  remainder  of the year.  While we
expect  that  interest  rates  will  be  fairly  stable  in the  near-term,  our
longer-term  outlook  for the  bond  market  remains  optimistic,  based  on the
fundamentally  favorable  backdrop of low  inflation,  a currently high level of
real yields, and declining Treasury borrowing.

      As you may know, the five investment  management  firms that comprised the
PNC Asset  Management  Group have  consolidated  under  BlackRock,  resulting in
BlackRock Inc., a $119 billion money  management  firm. We look forward to using
our  global  investment  management  expertise  to present  exciting  investment
opportunities to closed-end fund shareholders in the future.

      This report  contains  comments from your Trust's  managers  regarding the
markets and  portfolio  in addition to the Trust's  financial  statements  and a
detailed  portfolio listing.  We thank you for your continued  investment in the
Trust.

Sincerely,

/s/ Laurence D. Fink                                   /s/ Ralph L. Schlosstein
- --------------------                                   ------------------------
Laurence D. Fink                                       Ralph L. Schlosstein
Chairman                                               President


                                       1

<PAGE>

                                                                   July 31, 1998

Dear Shareholder:

      We are pleased to present the final  shareholder  report for The BlackRock
1998 Term Trust Inc.  ("the Trust",  or "BBT") for the six months ended June 30,
1998. As of this writing,  the Trust's net asset value is $10.03 per share.  The
current  distribution  is  $0.039583  monthly  ($0.475  annualized)  and  is not
expected to change prior to the Trust's  termination.  Although  there can be no
assurances,  we are confident  that we will be able to meet the Trust's  primary
objective of returning  $10.00 at the end of its term this  December.  Thanks to
the overwhelming response to our survey earlier this year (we received more than
double our  expectations  and three times the  industry  average),  we have been
developing  a new product  into which  shareholders  may invest the  proceeds of
their  maturing  BBT  investment.   Information  on  this  exciting   closed-end
investment  opportunity  will be  provided  to you  during  the next few  months
through the same manner in which you receive this report.

      We would like to take this  opportunity  to review the Trust's stock price
and net asset value (NAV) performance, summarize market developments and discuss
recent  portfolio  management  activity.  The Trust is a  diversified,  actively
managed  closed-end  bond fund  whose  shares  are  traded on the New York Stock
Exchange under the symbol "BBT". The Trust's  investment  objective is to return
$10 per share (its initial  offering price) to shareholders on or about December
31,  1998  while  providing  high  current  income.  Although  there  can  be no
guarantee,  BlackRock is  extrememly  confident  that the Trust will achieve its
investment  objectives.  The  Trust  seeks  these  objectives  by  investing  in
investment grade fixed income securities,  including  corporate debt securities,
mortgage-backed  securities backed by U.S.  Government  agencies (such as Fannie
Mae,  Freddie  Mac  or  Ginnie  Mae),  asset-backed  securities  and  commercial
mortgage-backed  securities.  All of the  Trust's  assets must be rated at least
"BBB" by  Standard & Poor's or "Baa" by Moody's at time of purchase or be issued
or guaranteed by the U.S. Government or its agencies.

      The table below  summarizes the performance of the Trust's stock price and
NAV (the market value of its assets per share) over the period:

<TABLE>
<CAPTION>
                                    ----------------------------------------------------------
                                       6/30/98   12/31/97      CHANGE       HIGH        LOW
<S>                                  <C>          <C>          <C>        <C>         <C>
- ----------------------------------------------------------------------------------------------
  STOCK PRICE                         $9.8125     $9.7500      0.64%       $9.8750    $9.7500
- ----------------------------------------------------------------------------------------------
  NET ASSET VALUE (NAV)              $10.03       $9.97        0.60%       $10.03      $9.96
- ----------------------------------------------------------------------------------------------
  5-YEAR U.S. TREASURY NOTE            5.47%       5.71%      (0.24%)        5.79%      5.21%
- ----------------------------------------------------------------------------------------------
</TABLE>

THE FIXED INCOME MARKETS

      After an extremely  strong first  quarter of 1998,  U.S.  economic  growth
slowed during the past three months.  Despite the strong  economic growth of the
past year,  inflation  stayed  surprisingly  subdued.  One  explanation  for the
absence of inflation in the U.S.  economy  stems from the aftermath of the Asian
financial  crisis.  U.S. exports to Asia have slowed,  while the strength of the
dollar  caused cheap Asian imports to flood the U.S.  market and exert  downward
price pressure on domestic goods.

      Yields of U.S. Treasury  securities have remained in a fairly narrow range
during the period.  For example,  the yield of the 10-Year Treasury posted a net
decline of 29 basis points (0.29%),  beginning 1998 at 5.74% and closing on June
30,

                                       2
 
<PAGE>

1998 at 5.45%. The past six months represented a continuation of strong Treasury
performance, which has been due to moderating economic growth, low inflation and
a "flight to  quality"  from  investors  seeking a safe  haven in U.S.  Treasury
securities.  Continued  expectations  that the Asian  crisis will slow  economic
growth and that the Fed will adopt an easing bias provided additional support to
the bond market.  With  Treasury  supply  waning due to a surplus in the federal
budget  and an  increased  foreign  demand  for  Treasuries  due to  their  U.S.
government  backing and relatively  attractive  yields, we anticipate a positive
environment for Treasuries for the balance of 1998.

      In light of declining  interest rates and faster  prepayment speeds during
the period,  mortgages modestly underperformed the broader investment grade bond
market.  As measured by the LEHMAN BROTHERS  MORTGAGE INDEX,  mortgages posted a
3.37%  total  return  versus  3.92% for the  LEHMAN  BROTHERS  AGGREGATE  INDEX.
Mortgage  rates fell below the  critical 7%  threshold  for the first time since
January  1994,  causing  concerns  that  increased  refinancing  activity  would
negatively  impact the performance of mortgage  securities.  Accordingly,  lower
coupon securities generally outperformed more prepayment-sensitive higher-coupon
issues.  The financial  turmoil in Asia caused a decline in perceived  corporate
bond credit  quality  ratings  and as a result  corporate  bonds  underperformed
Treasuries  during  both the first and second  quarters.  Lower  interest  rates
brought  a flood of new  corporate  supply  during  the first  quarter  of 1998,
contributing to the modest performance of corporates.

THE TRUST'S PORTFOLIO AND INVESTMENT STRATEGY

      BlackRock actively manages the Trust's portfolio holdings  consistent with
BlackRock's  overall market outlook and the Trust's investment  objectives.  The
following  chart  compares  the  Trust's  current  and  December  31, 1997 asset
composition.

<TABLE>
<CAPTION>
                              THE BLACKROCK 1998 TERM TRUST INC.
      ----------------------------------------------------------------------------
      COMPOSITION                                 JUNE 30, 1998  DECEMBER 31, 1997
      <S>                                             <C>               <C>
      ----------------------------------------------------------------------------
      Corporate Bonds                                 44%               63%
      ----------------------------------------------------------------------------
      Asset-Backed Securities                         36%               18%
      ----------------------------------------------------------------------------
      U.S. Government Securities                       9%                8%
      ----------------------------------------------------------------------------
      Mortgage Pass-Throughs                           5%                2%
      ----------------------------------------------------------------------------
      Municipal Bonds                                  5%                4%
      ----------------------------------------------------------------------------
      Principal Only Mortgage-Backed Securities        1%                1%
      ----------------------------------------------------------------------------
      Agency Multiple Class Mortgage Pass-Throughs     0%                2%
      ----------------------------------------------------------------------------
      Taxable Zero Coupon Bonds                        0%                1%
      ----------------------------------------------------------------------------
      Inverse Floating Rate Mortgages                  0%                1%
      ----------------------------------------------------------------------------
</TABLE>


<TABLE>
      ----------------------------------------------------------------------------
                                                 RATING % OF CORPORATES
               CREDIT RATING             JUNE 30, 1998     DECEMBER 31, 1997
      ----------------------------------------------------------------------------
          <S>                                 <C>                <C>
              AAA or equivalent                 4%                3%
      ----------------------------------------------------------------------------
               AA or equivalent                15%                7%
      ----------------------------------------------------------------------------
                A or equivalent                60%               51%
      ----------------------------------------------------------------------------
              BBB or equivalent                21%               39%
      ----------------------------------------------------------------------------
</TABLE>

                                       3

<PAGE>


      As the  Trust  is in  excellent  position  to  return  $10.00  per  share,
portfolio  management  activity during the period further prepared the portfolio
for a successful termination at the end of 1998. As of June 30, approximately 4%
of the Trust was in cash equivalents,  which is a result of securities  maturing
and the realization of capital gains by the Trust.  This percentage will rise as
the  remainder of the Trust's  assets  mature prior to December 31, 1998. As has
been the Trust's  practice,  additions to the  portfolio  were confined to bonds
whose final  maturities  occur on or shortly  before  December 31, 1998. To that
end,   investment   grade   corporates,   asset-backed   securities   (ABS)  and
well-structured  mortgages were considered for purchase. The Trust was active in
reducing  positions in bonds that have  maturity  dates or potential  cash flows
after the Trust's  termination date, such as Agency CMO's.  Lastly,  the Trust's
use of leverage was eliminated and the Trust does not expect to utilize leverage
before termination.

      We thank you for your  investment  in the  BlackRock  1998 Term Trust Inc.
Please feel free to contact our marketing center at (800) 227-7BFM (7236) if you
have specific  questions about the Trust or its termination.  We look forward to
being able to serve your future investment needs.

Sincerely,

/s/ Robert S. Kapito                        /s/ Michael P. Lustig
- --------------------                         ---------------------
Robert S. Kapito                            Michael P. Lustig
Vice Chairman and Portfolio Manager         Director and Portfolio Manager
BlackRock Financial Management, Inc.        BlackRock Financial Management, Inc.


  -----------------------------------------------------------------------------
                         THE BLACKROCK 1998 TERM TRUST INC.
  -----------------------------------------------------------------------------
   Symbol on New York Stock Exchange:                                 BBT
  -----------------------------------------------------------------------------
   Initial Offering Date:                                       April 19, 1991
  -----------------------------------------------------------------------------
   Closing Stock Price as of 6/30/98:                               $9.8125
  -----------------------------------------------------------------------------
   Net Asset Value as of 6/30/98:                                  $10.03
  -----------------------------------------------------------------------------
   Yield on Closing Stock Price as of 6/30/98 ($9.8125)1:            4.84%
  -----------------------------------------------------------------------------
   Current Monthly Distribution per Share2:                         $0.039583
  -----------------------------------------------------------------------------
   Current Annualized Distribution per Share2:                      $0.475
  -----------------------------------------------------------------------------

1Yield on Closing Stock Price is  calculated by dividing the current  annualized
 distribution per share by the closing stock price per share.

2Distribution not constant and is subject to change.


                                       4
<PAGE>
- -------------------------------------------------------------------------------
THE BLACKROCK 1998 TERM TRUST INC.
PORTFOLIO OF INVESTMENTS
JUNE 30, 1998 (UNAUDITED)
- --------------------------------------------------------------------------------
        PRINCIPAL
         AMOUNT                                                VALUE
 RATING*  (000)            DESCRIPTION                        (NOTE 1)
- --------------------------------------------------------------------------------
                 LONG-TERM INVESTMENTS--82.4%
                 MORTGAGE PASS-THROUGHS--1.1%
                 Federal Home Loan Mortgage Corp.,
       $ 5,817     4.50%, 12/01/98, 5 Year ...............   $ 5,791,804
           942     8.50%, 5/01/99, 7 Year .................      943,610
                                                              ----------
                                                               6,735,414
                                                              ----------
                 MULTIPLE CLASS MORTGAGE
                 PASS-THROUGHS--0.1%
   AAA     516   American Southwest Financial Corp.,
                   Series 48, Class 48-E, 9/01/17 .........      542,935
                  Federal Home Loan Mortgage
                   Corp., Multiclass Mortgage
                   Participation Certificates,
            85     Series 1534, Class 1534- D,
                     3/15/15 ..............................       84,441
           250     Series 1557 Class 1557- S,
                     8/15/98 (ARM) ........................      249,224
            42   Federal National Mortgage
                   Association, REMIC
                   Pass-Through Certificates,
                   Trust 1993-82, Class 82-J,
                   11/25/10 (I) ...........................            7
                                                               ---------
                                                                 876,607
                                                               ---------
                 COMMERCIAL MORTGAGE-BACKED
                 SECURITIES--3.5%
                 CBA Mortgage Corp.,
   AAA  14,797   Series 1993 -C1, Class A2,
                   7.76%, 12/25/03 ........................   14,862,523
   AA    5,489   Series 1993 -C1, Class B,
                   7.76%, 12/01/03 ........................    5,501,284
                                                              ----------
                                                              20,363,807
                                                              ----------
                 CORPORATE BONDS--36.4%
                 FINANCE & BANKING--21.7%
                 Baa1  11,100   Aristar, Inc.,
                   8.875%, 8/15/98 ........................   11,140,293
   Aa3   6,150   Associates Corp. of North America,
                   5.58%, 12/14/98 ........................    6,151,783
  Baa3  10,000   AT&T Capital Corp.,
                   5.81%, 12/04/98 ........................   10,004,900
   A2    6,000   Fleet Financial Group, Inc.,
                   6.00%, 10/26/98 ........................    6,008,340
   A1    8,000   Ford Motor Credit Co.,
                   8.00%, 1/15/99 .........................    8,088,560
   A2    8,000   General Motors Acceptance Corp.,
                   6.125%, 9/18/98 ........................    8,006,843
   A3    5,000   Huntington Bankshares, Inc.,
                   5.68%, 12/08/98 ........................    4,999,800
   A2    6,000   ITT Hartford Group,
                   8.20%, 10/15/98 ........................    6,042,081
   A1    6,000   Kemper Corp.,
                   8.80%, 11/01/98 ........................    6,061,260
    A    9,960   Lehman Brothers, Inc.,
                   5.75%, 11/15/98 ........................    9,963,287
                 Norwest Corp.,
   Aa3  10,000     5.75%, 11/16/98 ........................   10,009,800
   Aa3   5,000     6.00%, 10/13/98 ........................    5,007,400
                 Salomon Smith Barney Holdings, Inc.,
   A2    1,000     5.50%, 1/15/99 .........................      999,220
   A2    9,000     5.625%, 11/15/98 .......................    8,990,460
   A2    5,000     6.70%, 12/01/98 ........................    5,020,224
   A2   10,000     7.43%, 12/30/98 ........................   10,088,300
   A2   11,300   Sears Overseas Finance,
                   Zero Coupon, 7/12/98 ...................   11,279,689
                                                             -----------
                                                             127,862,240
                                                             -----------
                 CORPORATE BONDS
                 INDUSTRIALS--6.1%
                 Caterpillar Financial Services,
   A2    5,000     5.18%, 10/01/98 ........................    4,996,450
   A2    1,500     5.93%, 12/15/98 ........................    1,502,745
   A2   10,000   Chrysler Financial Corp.,
                   6.04%, 12/07/98 ........................   10,024,600
   A2    3,000   John Deere Capital Corp.,
                   7.14%, 9/15/98 .........................    3,009,330
   AAA   8,225   Outlet Broadcasting, Inc.,
                   10.875%, 7/15/03 .......................    8,565,515
  Baa1   7,500   Union Oil Co.,
                   8.40%, 1/15/99 .........................    7,602,825
                                                              ----------
                                                              35,701,465
                                                              ----------
                 CORPORATE BONDS
                 UTILITIES--4.7%
  Baa3   2,000   Entergy Gulf States, Inc.,
                   7.35%, 11/01/98 ........................    2,009,860
                 National Rural Utilities,
   AA-  10,000     5.20%, 1/15/99 .........................    9,980,700
   AA-   1,000     7.93%, 1/15/99 .........................    1,011,129
  Baa1   7,000   PECO Energy Co.,
                   5.375%, 8/15/98 ........................    6,997,200
                 Texas Utilities Electric Co.,
  Baa1   6,600     5.50%, 10/01/98 ........................    6,597,096
  Baa1   1,400     5.75%, 7/01/98 .........................    1,399,790
                                                              ----------
                                                              27,995,775
                                                              ----------
                       See Notes to Financial Statements.

                                       5
<PAGE>

- --------------------------------------------------------------------------------
        PRINCIPAL
         AMOUNT                                                VALUE
 RATING*  (000)            DESCRIPTION                        (NOTE 1)
- --------------------------------------------------------------------------------
                 CORPORATE BONDS
                 YANKEE--3.9%
   A1  $ 7,769   Bank of Montreal,
                   10.00%, 9/01/98 ........................  $ 7,821,208
   A3    8,000   Corporacion Andina De Fomento,
                   6.625%, 10/14/98 .......................    8,007,423
   A1    4,000      Ford Capital B.V.,
                   9.00%, 8/15/98 .........................    4,013,360
   A2    3,000   Hydro Quebec,
                   9.30%, 10/28/98 ........................    3,032,607
                                                             -----------
                                                              22,874,598
                                                             -----------
                 Total Corporate Bonds                       214,434,078
                                                             -----------
                 ASSET-BACKED SECURITIES--29.7%
   AAA     600   Advanta Credit Card Master Trust,
                 Series 1993-2, 5.92%, 8/31/00 ............      600,186
   AAA   7,400   American Express Master Trust,
                 Series 1994-1, Class A,
                 7.15%, 8/15/99 ...........................    7,418,500
   AAA  27,630   Banc One Credit Card Master Trust,
                   Series 1994-C, Class A,
                   7.80%, 12/15/00 ........................   27,844,076
   AAA     500   Chase Manhattan Credit Card
                 Master Trust, Series 1995-1,
                   5.79%, 5/15/01 .........................      500,000
   AAA  21,000   Chemical Master Credit Card
                 Trust, Series 1995-1, Class A,
                   5.78%, 6/15/01 .........................   21,006,510
   AAA   8,600   CSXT Trade Receivables
                 Master Trust, Series 1993-1,
                   5.05%, 9/25/99 .........................    8,590,594
   AAA  22,425   Dayton Hudson Credit Card Trust,
                   Series 1995-1, Class A,
                   6.10%, 2/25/02 .........................   22,459,350
                 Discover Card Master Trust,
   AAA  28,216     Series 1991-D, Class A,
                   8.00%, 10/16/00 ........................   28,303,236
   AAA  20,371     Series 1991-F, Class A,
                   7.85%, 11/21/00 ........................   20,434,558
   A2    1,270   Discover Card Trust,
                   Series 1993-A, Class B,
                   6.80%, 8/16/00 .........................    1,268,806
   AAA   8,000   First Chicago Master Trust,
                   Series 1993, Class F,
                   5.99%, 2/15/00 .........................    8,004,960
   AAA     500   First USA Credit Card Master
                   Trust, Series 95-4, Class A,
                   5.81%, 4/15/01 .........................      500,000
   AAA  15,000   Green Tree Floorplan Receivables
                   Master Trust, Series  95, Class A,
                   5.85%, 12/13/00 ........................   15,004,695
   AAA      38   Premier Auto Trust, Series  1993-4,
                   Class A2, 4.65%, 2/02/9 ................       38,443
   AAA   2,732   Signet Credit Card Master Trust,
                   Series 1993-1, Class A,
                   5.20%, 2/15/02 .........................    2,728,804
                 Standard Credit Card Master Trust,
   AAA   7,200     Series 1991-6, Class A,
                   7.875%, 11/07/98 .......................    7,257,695
                   Series  1991-3, Class A,
   AAA   2,500     8.875%, 9/07/99 ........................    2,500,000
                                                             -----------
                                                             174,460,413
                                                             -----------
                 STRIPPED MORTGAGE-BACKED SECURITIES--0.5%
        $  331   Federal Home Loan Mortgage Corp.,
                   Multiclass Mortgage Participation
                   Certificates, Series 1700, Class
                   1700-B, 7/15/23 (P/O) ..................      323,267
         2,514   Federal National Mortgage Association,
                   REMIC Pass-Through
                   Certificates,
                   Trust 1991-121, Class 121-B,
                   9/25/98 (P/O) ..........................    2,488,329
                                                             -----------
                                                               2,811,596
                                                             -----------
                 U.S GOVERNMENT SECURITIES--7.2%
                 United States Treasury Notes,
         7,000     5.125%, 12/31/98 .......................    6,992,370
        10,200     5.625%, 11/30/98 .......................   10,212,750
        25,000     5.75%, 12/31/98 ........................   25,050,750
                                                             -----------
                                                              42,255,870
                                                             -----------
                 TAXABLE MUNICIPAL BONDS--3.9%
   AAA   7,800   Alameda County California Pension
                   Obligation, Series A,
                   7.25%, 12/01/98 ........................    7,853,196
   AAA   6,375   Essex Cnty. New Jersey,
                   Series N, Zero Coupon, 11/15/98 ........    6,248,455
   AAA   1,415   Long Beach California Pension
                   Obligation,
                   6.13%, 9/01/98 .........................    1,416,132
  Baa1   2,125   New York St. Environ. Fac. Auth.,
                   Series A,
                   6.08%, 9/15/98 .........................    2,125,808
    A    5,250   Sacramento California Utility
                   District Electric, Series F,
                   5.90%, 11/15/98 ........................    5,256,667
                                                             -----------
                                                              22,900,258
                                                             -----------
                 Total long-term investments
                   (cost $484,325,695) ....................  484,838,043
                                                             -----------
                 SHORT-TERM INVESTMENTS--18.3%
                 COMMERCIAL PAPER--14.4%
   A2   13,000   Case Credit Corp.,
                   5.77%, 7/15/98 .........................   12,970,930
   A2   10,000   Columbia Gas Systems, Inc.,
                   5.75%, 7/20/98 .........................    9,969,811
   A1   15,000   Den Norske Bank,
                   5.69%, 12/28/98 ........................   14,590,500
   A2    8,000   Donaldson Luftkin & Jenrette,
                   5.77%, 9/08/98 .........................    7,912,546
   A2   10,000   ICI Wilmington, Inc.,
                   5.75%, 8/10/98 .........................    9,936,667
   A2   10,000   Occidental Petroleum Corp.,
                   5.76%, 8/07/98 .........................    9,941,417

                       See Notes to Financial Statements.

                                       6

<PAGE>

- --------------------------------------------------------------------------------
        PRINCIPAL
         AMOUNT                                                VALUE
 RATING*  (000)            DESCRIPTION                        (NOTE 1)
- --------------------------------------------------------------------------------
   A2  $10,000   Safeway, Inc.,
                   5.87%, 12/31/98 ......................   $  9,712,283
   P2   10,000   Williams Holdings of Delaware Inc.,
                   5.87%, 12/11/98 ......................      9,744,083
                                                            ------------
                                                              84,778,237
                                                            ------------
                 DISCOUNT NOTES--3.9%
        22,560   Federal Home Loan Mortgage Corp.,
                   5.85%, 7/01/98 .......................     22,560,000
                                                            ------------
                 Total short-term investments
                   (cost $107,338,237) ..................    107,338,237
                                                            ------------
                 Total investments--100.7%
                   (cost $591,663,932) ..................    592,176,280
                 Liabilities in excess of other
                   assets--(0.7%) .......................     (3,916,064)
                                                            ------------
                 NET ASSETS--100% .......................   $588,260,216
                                                            =============


- ---------
     *  Using the higher of Standard & Poor's or Moody's rating.

- --------------------------------------------------------------------------------
                              KEY TO ABBREVIATIONS
            ARM  -- Adjustable Rate Mortgage.
              I  -- Denotes a CMO with Interest only characteristics.
            P/O  -- Principal Only.
           REMIC -- Real Estate Mortgage Investment Conduit.
- --------------------------------------------------------------------------------

                       See Notes to Financial Statements.

                                       7

<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK 1998 TERM TRUST INC.
STATEMENT OF ASSETS AND LIABILITIES
JUNE 30, 1998 (UNAUDITED)
- --------------------------------------------------------------------------------

ASSETS

Investments, at value (cost $591,663,932)
  (Note 1) ..................................   $592,176,280
Cash ........................................          6,899
Interest receivable .........................      6,856,528
Receivable for investments sold .............      5,000,000
Unrealized appreciation on
  interest rate swaps (Notes 1 & 3) .........      2,784,985
                                                ------------
                                                 606,824,692
                                                ------------
LIABILITIES
Payable for investments purchased ...........     17,919,926
Investment advisory fee payable (Note 2)             193,042
Administration fee payable (Note 2) .........         38,608
Other accrued expenses ......................        412,900
                                                ------------
                                                  18,564,476
                                                ------------
NET ASSETS ..................................   $588,260,216
                                                ============
Net assets were comprised of:
  Common stock, at par (Note 5) .............   $    586,605
  Paid-in capital in excess of par ..........    552,328,394
                                                ------------
                                                 552,914,999
  Undistributed net investment income .......     34,433,196
  Accumulated net realized loss ......... ...     (2,385,312)
  Net unrealized appreciation ...............      3,297,333
                                                ------------
  Net assets, June 30, 1998 .................   $588,260,216
                                                ============
Net asset value per share:
  ($588,260,216 / 58,660,527 shares of
  common stock issued and outstanding) ......         $10.03
                                                      ======
- --------------------------------------------------------------------------------
THE BLACKROCK 1998 TERM TRUST INC.
STATEMENT OF OPERATIONS
SIX MONTHS ENDED JUNE 30, 1998 (UNAUDITED)
- --------------------------------------------------------------------------------
NET INVESTMENT INCOME
Income
  Interest (net of premium amortization of
    $943,137 and interest expense
    of $153,474) ............................    $17,139,024
                                                 -----------
Operating Expenses
  Investment advisory .......................      1,164,939
  Administration ............................        232,988
  Reports to shareholders ...................         86,000
  Custodian .................................         69,000
  Directors .................................         34,000
  Audit .....................................         32,000
  Transfer agent ............................         22,000
  Legal .....................................          5,000
  Miscellaneous .............................         91,888
                                                 -----------
    Total operating expenses ................      1,737,815
                                                 -----------
Net investment income .......................     15,401,209
                                                 -----------
REALIZED AND UNREALIZED GAIN (LOSS) ON
  INVESTMENTS (NOTE 3)
Net realized loss on investments ............    (2,310,970)
                                                 ----------
Net change in unrealized appreciation on:
  Investments ...............................     2,715,434
  Interest rate swaps .......................     1,772,179
                                                 ----------
                                                  4,487,613
                                                 ----------
Net gain on investments .....................     2,176,643
                                                 ----------
NET INCREASE IN NET ASSETS
  RESULTING FROM OPERATIONS .................   $17,577,852
                                                ===========

                       See Notes to Financial Statements.

                                       8

<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK 1998 TERM TRUST INC.
STATEMENT OF CASH FLOWS
SIX MONTHS ENDED JUNE 30, 1998 (UNAUDITED)
- --------------------------------------------------------------------------------
INCREASE (DECREASE) IN CASH
 Cash flows provided by operating activities:
  Interest received ..........................   $  19,941,292
  Operating expenses paid ....................      (1,609,417)
  Interest expense paid ......................        (153,474)
  Purchase of short-term portfolio
    investments, net .........................     (84,339,904)
  Purchase of long-term portfolio investments      (85,449,889)
  Proceeds from disposition of long-term
    portfolio investments ....................     164,575,228
                                                 -------------
  Net cash flows provided by
    operating activities .....................      12,963,836
                                                 -------------
Cash flows used for financing activities:
  Cash dividends paid ........................     (13,931,579)
                                                 -------------
Net decrease in cash .........................        (967,743)
Cash at beginning of period ..................         974,642
                                                 -------------
Cash at end of period ........................   $       6,899
                                                 =============
RECONCILIATION OF NET INCREASE IN NET ASSETS
RESULTING FROM OPERATIONS TO NET CASH FLOWS
PROVIDED BY OPERATING ACTIVITIES
Net increase in net assets resulting from
  operations .................................   $ 17,577,852
                                                 ------------
Increase in investments ......................    (15,419,175)
Net realized loss ............................      2,310,970
Increase in unrealized appreciation ..........     (4,487,613)
Decrease in interest receivable ..............      1,705,657
Increase in appreciation of interest rate swap     (1,772,179)
Increase in payable for investments purchased      17,919,926
Increase in receivable for investments sold ..     (5,000,000)
Increase in accrued expenses and other
  liabilities ................................        128,398
                                                 ------------
  Total adjustments ..........................     (4,614,016)
                                                 ------------
Net cash provided by operating activities ....   $ 12,963,836
                                                 ============

- --------------------------------------------------------------------------------
THE BLACKROCK 1998 TERM TRUST INC.
STATEMENT OF CHANGES
IN NET ASSETS (UNAUDITED)
- --------------------------------------------------------------------------------

                         SIX MONTHS ENDED    YEAR ENDED
                             JUNE 30,       DECEMBER 31,
                               1998             1997
                          ---------------   ------------

INCREASE (DECREASE) IN
  NET ASSETS

Operations:

  Net investment income ....... $ 15,401,209    $ 33,640,074


  Net realized loss
    on investments ............   (2,310,970)     (2,255,987)


  Net change in
    unrealized appreciation ...    4,487,613       1,976,403
                                ------------    ------------

  Net increase
    in net assets
    resulting from operations     17,577,852      33,360,490

  Dividends from net
    investment income .........  (13,931,579)    (26,887,924)
                                ------------    ------------

TOTAL INCREASE ................    3,646,273       6,472,566
                                ------------    ------------

NET ASSETS

Beginning of period .........    584,613,943     578,141,377
                                ------------    ------------

End of period ...............   $588,260,216    $584,613,943
                                ============    ============


                       See Notes to Financial Statements.

                                       9

<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK 1998 TERM TRUST INC.
FINANCIAL HIGHLIGHTS (UNAUDITED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                       SIX MONTHS
                                                          ENDED                   YEAR ENDED DECEMBER 31,
                                                         JUNE 30,   --------------------------------------------------
                                                           1998      1997       1996        1995      1994      1993
                                                          -----      ----       ----        ----      ----      ----
<S>                                                      <C>        <C>       <C>           <C>       <C>       <C>
PER SHARE OPERATING PERFORMANCE:  
Net asset value, beginning of period ...............     $ 9.97     $ 9.86    $   9.79      $ 8.97    $ 9.91    $10.22
                                                         ------     ------    --------      ------    ------    ------
  Net investment income (net of $0.003, $0.16, 
    $0.27, $0.29, $0.13 and $0.14 respectively,
    of interest expense) ...........................       0.26       0.58        0.55        0.68      0.58      0.81
  Net realized and unrealized gain (loss) ..........       0.04      (0.01)       0.02        0.67     (0.89)    (0.40)
                                                         ------     ------    --------      ------    ------    ------
Net increase (decrease) from investment operations..       0.30       0.57        0.57        1.35     (0.31)     0.41
                                                         ------     ------    --------      ------    ------    ------
Dividends from net investment income ...............      (0.24)     (0.46)      (0.50)      (0.53)    (0.63)    (0.72)
                                                         ------     ------    --------      ------    ------    ------
Net asset value, end of period* ....................     $10.03     $ 9.97    $   9.86      $ 9.79    $ 8.97    $ 9.91
                                                         ------     ------    --------      ------    ------    ------
Market value, end of period* .......................     $ 9.81     $ 9.75    $   9.38      $ 8.88    $ 8.00    $10.13
                                                         ======     ======    ========      ======    ======    ======
TOTAL INVESTMENT RETURN+: ..........................       3.10%      9.07%      11.46%      17.73%   (15.15%)   10.13%
                                                         ======     ======    ========      ======    ======    ======
RATIOS TO AVERAGE NET ASSETS:
Operating expenses @ ...............................       0.60%#     0.63%       0.67%       0.67%     0.81%     0.81%
Net investment income ..............................       5.30%#     5.79%       5.65%       7.21%     6.21%     7.95%

SUPPLEMENTAL DATA:
Average net assets (in thousands) ..................   $585,670   $580,776    $574,738    $555,561  $546,853  $600,058
Portfolio turnover .................................         19%        30%        225%        136%      193%       55%
Net assets, end of period (in thousands) ...........   $588,260   $584,614    $578,141    $574,420  $526,373  $581,169
Reverse repurchase agreements outstanding,
 end of period (in thousands) ......................      --          --      $213,466    $240,871  $175,091  $272,866
Asset coverage++ ...................................      --          --      $  3,708     $ 3,385   $ 4,006  $  3,130
</TABLE>

- -------------
   * Net asset value and market value are  published in The Wall Street  Journal
     each Monday.
   @ The ratios of operating  expenses,  including interest expense,  to average
     net assets were  0.65%#,  2.23%,  3.44%,  3.76%,  2.19%,  and 2.14% for the
     periods indicated above,  respectively.  The ratios of operating  expenses,
     including  interest  expense  and excise  tax,  to average  net assets were
     0.65%#,  2.23%,  3.65%,  3.85%,  2.28% and 2.15% for the periods  indicated
     above, respectively.
   + Total investment  return is calculated  assuming a purchase of common stock
     at the  current  market  price on the first  day and a sale at the  current
     market  price  on the  last  day of each  period  reported.  Dividends  and
     distributions  are  assumed,  for  purposes  of  this  calculation,  to  be
     reinvested at prices obtained under the Trust's dividend reinvestment plan.
     This calculation does not reflect brokerage  commissions.  Total investment
     returns for periods of less than one full year are not annualized.
  ++ Per $1,000 of reverse repurchase agreement outstanding.
   # Annualized.

The information above represents the unaudited operating  performance data for a
share of common stock outstanding,  total investment  return,  ratios to average
net assets and other supplemental data for each of the periods  indicated.  This
information has been determined based upon financial information provided in the
financial statements and market value data for the Trust's shares.

                       See Notes to Financial Statements.

                                       10

<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK 1998 TERMTRUST INC.
NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
- --------------------------------------------------------------------------------

NOTE 1. ORGANIZATION &                               The      BlackRock     1998
ACCOUNTING                                           Term   Trust      Inc. (the
POLICIES                                             "Trust"), a  Maryland  cor-
                                                     poration, is  a diversified
closed-end  management investment company. The investment objective of the Trust
is to manage a portfolio of investment  grade fixed income  securities that will
return at least $10 per share (the initial  public  offering price per share) to
investors on or shortly  before  December 31, 1998 while  providing high monthly
income.  The  ability of issuers  of debt  securities  held by the Trust to meet
their  obligations  may be  affected  by  economic  developments  in a  specific
industry  or  region.  No  assurance  can be given that the  Trust's  investment
objective will be achieved.

   The following is a summary of significant accounting policies followed by the
Trust.

SECURITIES VALUATION:  The Trust values mortgage-backed,  asset-backed and other
debt securities on the basis of current market quotations provided by dealers or
pricing services approved by the Trust's Board of Directors.  In determining the
value of a particular  security,  pricing  services may use certain  information
with respect to transactions in such securities, quotations from dealers, market
transactions in comparable securities,  various relationships between securities
observed  in the  market  and  calculated  yield  measures  based  on  valuation
technology commonly employed in the market for such securities.  Exchange-traded
options are valued at their last sales price as of the close of options  trading
on the applicable  exchanges.  In the absence of a last sale, options are valued
at the average of the quoted bid and asked prices as of the close of business. A
futures  contract  is  valued  at the last  sale  price  as of the  close of the
commodities  exchange on which it trades  unless the Trust's  Board of Directors
determines  that such price does not reflect  its fair  value,  in which case it
will be  valued  at its  fair  value  as  determined  by the  Trust's  Board  of
Directors.  Any  securities  or other  assets  for  which  such  current  market
quotations  are not readily  available are valued at fair value as determined in
good faith under procedures established by and under the general supervision and
responsibility  of the Trust's Board of  Directors.  Short-term  securities  are
valued at amortized cost.

   In  connection  with  transactions  in  repurchase  agreements,  the  Trust's
custodian takes possession of the underlying collateral securities, the value of
which at least  equals  the  principal  amount  of the  repurchase  transaction,
including  accrued  interest.  To the  extent  that any  repurchase  transaction
exceeds one business day, the value of the collateral is  marked-to-market  on a
daily basis to ensure the adequacy of the collateral. If the seller defaults and
the value of the collateral declines or if bankruptcy  proceedings commence with
respect to the seller of the  security,  realization  of the  collateral  by the
Trust may be delayed or limited.

OPTION  SELLING/PURCHASING:  When the Trust  sells or  purchases  an option,  an
amount  equal to the  premium  received  or paid by the Trust is  recorded  as a
liability or an asset and is  subsequently  adjusted to the current market value
of the option  written or purchased.  Premiums  received or paid from writing or
purchasing  options  which  expire  unexercised  are treated by the Trust on the
expiration date as realized gains or losses.  The difference between the premium
and the  amount  paid or  received  on  effecting  a  closing  purchase  or sale
transaction, including brokerage commissions, is also treated as a realized gain
or loss. If an option is exercised, the premium paid or received is added to the
proceeds from the sale or cost of the purchase in determining  whether the Trust
has realized a gain or a loss on investment  transactions.  The Trust, as writer
of an option, may have no control over whether the underlying  securities may be
sold  (call) or  purchased  (put) and as a result  bears the  market  risk of an
unfavorable change in the price of the security underlying the written option.

   Options,  when used by the Trust,  help in  maintaining a targeted  duration.
Duration is a measure of the price  sensitivity  of a security or a portfolio to
relative changes in interest rates. For instance, a duration of "one" means that
a portfolio's or a security's price would be expected to change by approximately
one percent  with a one percent  change in interest  rates,  while a duration of
five  would  imply  that the price  would  move  approximately  five  percent in
relation to a one percent change in interest rates.

   Option  selling  and  purchasing  is used by the Trust to  effectively  hedge
positions  so that  changes in interest  rates do not change the duration of the
portfolio  unexpectedly.  In general,  the Trust uses options to hedge a long or
short  position  or an  overall  portfolio  that is longer or  shorter  than the
benchmark  security.  A call option gives the  purchaser of the option the right
(but not  obligation)  to buy, and obligates the seller to sell (when the option
is exercised), the underlying position at the exercise price at any time or at a
specified time during the option period. A put option gives the holder the right
to sell and obligates the writer to buy the underlying  position at the exercise
price at any time or at a specified time during the option  period.  Put options
can be purchased to  effectively  hedge a position or a portfolio  against price
declines  if a  portfolio  is  long.  In the same  sense,  call  options  can be
purchased to hedge a portfolio that is shorter than its benchmark  against price
changes. The Trust can also sell (or write) covered call options and put options
to hedge portfolio positions.

   The main risk that is associated with  purchasing  options is that the option
expires without being exercised.  In this case, the option expires worthless and
the premium paid for the option is considered the loss. The risk associated with
writing call options is that the Trust may forego the  opportunity  for a profit
if the  market  value of the  underlying  position  increases

                                       11
<PAGE>

and the option is  exercised.  The risk in writing put options is that the Trust
may incur a loss if the market value of the  underlying  position  decreases and
the option is exercised. In addition, as with futures contracts, the Trust risks
not being able to enter into a closing transaction for the written option as the
result of an illiquid market.

INTEREST RATE SWAPS: In an interest rate swap, one investor pays a floating rate
of interest on a notional principal amount and receives a fixed rate of interest
on  the  same   notional   principal   amount   for  a   specified   period   of
time.Alternatively,  an  investor  may pay a fixed  rate and  receive a floating
rate.  Rate swaps were conceived as  asset/liability  management  tools. In more
complex  swaps,  the notional  principal  amount may decline (or amortize)  over
time.

   During the term of the swap,  changes in the value of the swap are recognized
as unrealized gains or losses by "marking-to-market" to reflect the market value
of the swap. When the swap is terminated,  the Trust will record a realized gain
or loss  equal to the  difference  between  the  proceeds  from (or cost of) the
closing transaction and the Trust's basis in the contract, if any.

   The Trust is exposed to credit  loss in the event of  non-performance  by the
other  party to the  mortgage  swap.  However,  the  Trust  does not  anticipate
non-performance by any counterparty.

FINANCIAL  FUTURES  CONTRACTS:  A futures  contract is an agreement  between two
parties to buy or sell a financial  instrument for a set price on a future date.
Initial margin deposits are made upon entering into futures contracts and can be
either cash or securities.  During the period that the futures contract is open,
changes in the value of the  contract  are  recognized  as  unrealized  gains or
losses by  "marking-to-market"  on a daily basis to reflect the market  value of
the contract at the end of each day's  trading.  Variation  margin  payments are
made or  received,  depending  upon  whether  unrealized  gains  or  losses  are
incurred. When the contract is closed, the Trust records a realized gain or loss
equal to the  difference  between  the  proceeds  from (or cost of) the  closing
transaction and the Trust's basis in the contract.

   Financial  futures  contracts,  when used by the Trust, help in maintaining a
targeted  duration.  Futures  contracts  can be sold to  effectively  shorten an
otherwise longer duration portfolio. In the same sense, futures contracts can be
purchased  to lengthen a portfolio  that is shorter  than its  duration  target.
Thus, by buying or selling futures contracts,  the Trust can effectively "hedge"
more  volatile  positions  so that  changes in interest  rates do not change the
duration of the portfolio unexpectedly.

   The Trust may invest in financial futures contracts primarily for the purpose
of hedging its existing portfolio  securities or securities the Trust intends to
purchase  against  fluctuations in value caused by changes in prevailing  market
interest  rates.  Should  interest  rates move  unexpectedly,  the Trust may not
achieve the  anticipated  benefits of the  financial  futures  contracts and may
realize a loss. The use of futures  transactions  involves the risk of imperfect
correlation in movements in the price of futures  contracts,  interest rates and
the  underlying  hedged  assets.  The Trust is also at risk of not being able to
enter into a closing transaction for the futures contract because of an illiquid
secondary market.  In addition,  since futures are used to shorten or lengthen a
portfolio's  duration,  there is a risk that the portfolio may have  temporarily
performed better without the hedge or that the Trust may lose the opportunity to
realize appreciation in the market price of the underlying positions.

SHORT SALES: The Trust may make short sales of securities as a method of hedging
potential  price declines in similar  securities  owned.  When the Trust makes a
short  sale,  it may  borrow  the  security  sold  short and  deliver  it to the
broker/dealer  through  which  it made  the  short  sale as  collateral  for its
obligation  to deliver the security upon  conclusion of the sale.  The Trust may
have to pay a fee to borrow the  particular  securities  and may be obligated to
pay over any payments received on such borrowed  securities.  A gain, limited to
the price at which the Trust sold the security short, or a loss, unlimited as to
dollar amount will be  recognized  upon the  termination  of a short sale if the
market price is less or greater than the proceeds originally received.

SECURITIES  LENDING:  The Trust may lend its  portfolio  securities to qualified
institutions.  The loans are secured by collateral at least equal, at all times,
to the market  value of the  securities  loaned.  The Trust may bear the risk of
delay in recovery of, or even loss of rights in, the  securities  loaned  should
the borrower of the securities fail financially. The Trust receives compensation
for lending its  securities in the form of interest on the loan.  The Trust also
continues to receive interest on the securities  loaned, and any gain or loss in
the market price of the securities  loaned that may occur during the term of the
loan will be for the account of the Trust.

INTEREST  RATE CAPS:  Interest  rate caps are  similar to  interest  rate swaps,
except  that one party  agrees to pay a fee,  while  the  other  party  pays the
excess, if any, of a floating rate over a specified fixed rate.

   Interest  rate caps are  intended to both manage the  duration of the Trust's
portfolio and its exposure to changes in short term rates.  Owning interest rate
caps reduces the  portfolio's  duration,  making it less sensitive to changes in
interest rates from a market value  perspective.  The effect on income  involves
protection from rising short term rates,  which the Trust experiences  primarily
in the form of leverage.

                                       12

<PAGE>

   The Trust is exposed to credit  loss in the event of  non-performance  by the
other party to the interest  rate cap.  However,  the Trust does not  anticipate
non-performance by any counterparty. 

INTEREST  RATE FLOORS:  Interest rate floors are similar to interest rate swaps,
except  that one party  agrees to pay a fee,  while  the  other  party  pays the
excess, if any, of a floating rate under a specified fixed rate.

   Interest rate floors are used by the Trust to both manage the duration of the
portfolio  and its  exposure to changes in  short-term  interest  rates.  Owning
interest rate floors reduces the portfolio's duration,  making it less sensitive
to changes in  interest  rates from a market  value  perspective.  The effect on
income  involves  protection  from  falling  short term  rates,  which the Trust
experiences primarily in the form of leverage.

   The Trust is exposed to credit  loss in the event of  non-performance  by the
other party to the interest rate floor.  However,  the Trust does not anticipate
non-performance by any counterparty.

SECURITIES  TRANSACTIONS AND NET INVESTMENT INCOME:  Securities transactions are
recorded  on the trade  date.  Realized  and  unrealized  gains and  losses  are
calculated  on the  identified  cost basis.  Interest  income is recorded on the
accrual  basis  and  the  Trust  accretes  discount  and  amortizes  premium  on
securities  purchased  using the interest  method.  Expenses are recorded on the
accrual  basis  which may require the use of certain  estimates  by  management.


TAXES: It is the Trust's  intention to continue to meet the  requirements of the
Internal  Revenue Code  applicable  to  regulated  investment  companies  and to
distribute  substantially all of its taxable income to shareholders.  Therefore,
no federal income tax provision is required.

DIVIDENDS  AND  DISTRIBUTIONS:   The  Trust  declares  and  pays  dividends  and
distributions  monthly,  first from net  investment  income,  then from realized
short-term capital gains and other sources, if necessary.  Net long-term capital
gains,  if any,  in  excess  of loss  carryforwards  are  distributed  at  least
annually. Dividends and distributions are recorded on the exdividend date.

   Income  distributions  and  capital  gain  distributions  are  determined  in
accordance with income tax regulations which may differ from generally  accepted
accounting  principles. 

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

NOTE 2. AGREEMENTS                                   The Trust has an Investment
                                                     Advisory   Agreement   with
BlackRock Financial  Management Inc. (the "Adviser"),  a wholly-owned  corporate
subsidiary  of BlackRock  Advisors,  Inc.,  which is an indirect  majority-owned
subsidiary of PNC Bank,  N.A., and an  Administration  Agreement with Prudential
Investments Fund Management LLC, ("PIFM") an indirect wholly-owned subsidiary of
The Prudential Insurance Co. of America.

   The  investment  advisory  fee paid to the  Adviser  is  computed  weekly and
payable  monthly at an annual  rate of 0.40% of the Trust's  average  weekly net
assets.  The administration fee paid to PIFM is also computed weekly and payable
monthly at an annual rate of 0.10% of the Trust's average weekly net assets.

   Pursuant to the agreements,  the Adviser provides  continuous  supervision of
the investment  portfolio and pays the compensation of officers of the Trust who
are affiliated persons of the Adviser.  PIFM pays occupancy and certain clerical
and accounting costs of the Trust. The Trust bears all other costs and expenses.

NOTE 3. PORTFOLIO                                   Purchases   and   sales   of
SECURITIES                                          investment securities, other
than short-term investments,  and dollar rolls for the six months ended June 30,
1998 aggregated $103,369,815 and $178,896,181, respectively.

   The Trust may invest up to 60% of its total  assets in  securities  which are
not readily  marketable,  including those which are restricted as to disposition
under securities law ("restricted securities").  At June 30, 1998, the Trust did
not hold any illiquid securities.

   The Trust may from time to time  purchase  in the  secondary  market  certain
mortgage  pass-through  securities  packaged or master  serviced by PNC Mortgage
Securities Corp. (or Sears Mortgage if PNC Mortgage  Securities Corp.  succeeded
to rights and duties of Sears) or mortgage related  securities  containing loans
or mortgages  originated by PNC Bank or its affiliates,  including  Midland Loan
Services,  Inc.  It  is  possible  under  certain  circumstances,  PNC  Mortgage
Securities Corp. or its affiliates,  including Midland Loan Services, Inc. could
have  interests  that are in conflict with the holders of these  mortgage-backed
securities,  and such holders could have rights against PNC Mortgage  Securities
Corp. or its affiliates, including Midland LoanServices, Inc.

The  federal  income tax basis of the Trust's  investments  at June 30, 1998 was
substantially the same as for financial reporting purposes and, accordingly, net
unrealized  appreciation  for federal  income tax purposes  was $512,348  (gross
unrealized appreciation-$1,267,388; gross unrealized depreciation-$755,040).

                                       13

<PAGE>

   For federal income tax purposes, the Trust has a capital loss carryforward at
December  31,  1997  of  approximately  $3,784,874  which  will  expire  at  the
termination of the Trust. Accordingly, no capital gains distribution is expected
to be paid to shareholders  until net gains have been realized in excess of such
amounts.

   The Trust entered into interest rate swaps with original  notional amounts as
stated below. Under these agreements, the Trust receives a fixed rate and pays a
floating  rate.  Details of open  interest  rate  swaps at June 30,  1998 are as
follows:

 NOTIONAL
 AMOUNT                   FIXED                   TERMINATION    UNREALIZED
  (000)        TYPE        RATE    FLOATING RATE     DATE       APPRECIATION
 ---------------------------------------------------------------------------
 $16,000   Interest Rate   7.27%   3-mo. LIBOR     Dec. `98     $  109,968
  44,000   Interest Rate   7.25%   3-mo. LIBOR     Dec. `98        303,600
  23,000   Interest Rate   7.00%   3-mo. LIBOR     Dec. `98        390,057
  16,000   Interest Rate   7.00%   3-mo. LIBOR     Dec. `98        634,176
  32,000   Interest Rate   6.99%   3-mo. LIBOR     Dec. `98        721,984
  10,000   Interest Rate   6.99%   3-mo. LIBOR     Dec. `98        338,600
  10,000   Interest Rate   6.975%  3-mo. LIBOR     Dec. `98        286,600
                                                                ----------
                                                                $2,784,985
                                                                ==========

NOTE 4. BORROWINGS                                    REVERSE         REPURCHASE
                                                      AGREEMENTS: The Trust  may
enter  into  reverse   repurchase   agreements  with   qualified,   third  party
broker-dealers  as determined by and under the direction of the Trust's Board of
Directors.  Interest on the value of reverse  repurchase  agreements  issued and
outstanding will be based upon competitive market rates at the time of issuance.
At the time the  Trust  enters  into a  reverse  repurchase  agreement,  it will
establish and maintain a segregated  account with the lender, the value of which
at least  equals the  principal  amount of the reverse  repurchase  transaction,
including accrued interest.

   The average daily balance of reverse repurchase agreements outstanding during
the six months ended June 30, 1998 was  approximately  $5,541,366  at a weighted
average  interest rate of  approximately  5.59%.  The maximum  amount of reverse
repurchase  agreements  outstanding at any month-end during the six months ended
June  30,1998  was  $22,719,125  on  January  31,  1998 which was 3.73% of total
assets.

DOLLAR  ROLLS:  The Trust may enter into  dollar  rolls in which the Trust sells
securities  for delivery in the current  month and  simultaneously  contracts to
repurchase  substantially similar (same type, coupon and maturity) securities on
a specified future date.  During the roll period the Trust forgoes principal and
interest paid on the  securities.  The Trust will be compensated by the interest
earned on the cash  proceeds  of the  initial  sale and by the lower  repurchase
price at the future  date.  The Trust did not enter into dollar rolls during the
six months ended June 30, 1998.

NOTE 5. CAPITAL                                     There are 200 million shares
                                                    of  $.01  par  value  common
stock  authorized.  Of the 58,660,527  shares  outstanding at June 30, 1998, the
Adviser owned 10,527 shares.

NOTE 6. DIVIDENDS                                  Subsequent  to  June 30,1998,
                                                   the Board of Directors of the
Trust  declared a dividend  from  undistributed  earnings of $.039583  per share
payable July 31, 1998 to shareholders of record on July 15, 1998.





                                       14

<PAGE>

- --------------------------------------------------------------------------------
                       THE BLACKROCK 1998 TERM TRUST INC.
                           DIVIDEND REINVESTMENT PLAN
- --------------------------------------------------------------------------------

      Pursuant  to  the  Trust's  Dividend   Reinvestment   Plan  (the  "Plan"),
shareholders may elect to have all  distributions of dividends and capital gains
automatically reinvested by State Street Bank & Trust Company (the "Plan Agent")
in Trust shares pursuant to the Plan. Shareholders who do not participate in the
Plan will  receive  all  distributions  in cash  paid by check in United  States
dollars mailed directly to the shareholders of record (or if the shares are held
in street or other nominee name,  then to the nominee) by the transfer  agent as
dividend disbursing agent.

      The Plan Agent serves as agent for the shareholders in  administering  the
Plan.  After the Trust  declares a dividend or determines to make a capital gain
distribution,  the Plan Agent will, as agent for the  participants,  receive the
cash payment and use it to buy Trust shares in the open market,  on the New York
Stock Exchange or elsewhere,  for the participants' accounts. The Trust will not
issue shares under the Plan.

      Participants in the Plan may withdraw from the Plan upon written notice to
the Plan Agent and will receive  certificates  for whole Trust shares and a cash
payment will be made for any fraction of a Trust share.

      The Plan Agent's fees for the  handling of the  reinvestment  of dividends
and distributions will be paid by the Trust.  However, each participant will pay
a pro rata share of  brokerage  commissions  incurred  with  respect to the Plan
Agent's open market  purchases in connection with the  reinvestment of dividends
and  distributions.  The automatic  reinvestment of dividends and  distributions
will not relieve  participants of any federal,  state or local income taxes that
may be payable on such dividend or distributions.

      Experience  under  the Plan  may  indicate  that  changes  are  desirable.
Accordingly,  the Trust  reserves  the right to amend or  terminate  the Plan as
applied to any dividend or distribution paid subsequent to written notice of the
change sent to all  shareholders of the Trust at least 90 days before the record
date  for the  dividend  or  distribution.  The  Plan  also  may be  amended  or
terminated  by the Plan  Agent  upon at least 90  days'  written  notice  to all
shareholders  of the Trust.  All  correspondence  concerning  the Plan should be
directed to the Plan Agent at (800) 699-1BFM.  The addresses are on the front of
this report.

- --------------------------------------------------------------------------------
                             ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------

      There  have  been no other  material  changes  in the  Trust's  investment
objectives or policies that have not been  approved by the  shareholders,  or to
its  charter or  by-laws,  or in the  principal  risk  factors  associated  with
investment  in the Trust.  There have been no  changes  in the  persons  who are
primarily responsible for the day-to-day management of the Trust's portfolio.

      The Annual Meeting of Trust  Shareholders  was held May 6, 1998 to vote on
      the following matters: 

      (1) To elect three Directors as follows:

          DIRECTOR                     CLASS             TERM           EXPIRING
          --------                     -----             -----           ------
          Andrew F. Brimmer .........   III             3 years           2001
          Kent Dixon ................   III             3 years           2001
          Laurence D. Fink ..........   III             3 years           2001

          Directors whose term of office continues beyond this meeting are Frank
          J.  Fabozzi,  Ralph  L.  Schlosstein,  Walter  F.Mondale,  Richard  E.
          Cavanagh, James Grosfeld, and James Clayburn La Force, Jr.

      (2) To ratify the selection of Deloitte & Touche LLP as independent public
          accountants of the Trust for the fiscal year ending December 31, 1998.

          Shareholders elected the three Directors and ratified the selection of
          Deloitte &Touche LLP. The results of the voting was as follows:

<TABLE>
<CAPTION>
                                          VOTES FOR       VOTES AGAINST     ABSTENTIONS
                                          ---------       -------------     -----------
          <S>                             <C>                 <C>             <C>
          Andrew F. Brimmer ............  45,463,390             0            2,582,870
          Kent Dixon ...................  45,567,060             0            2,479,200
          Laurence D. Fink .............  45,552,942             0            2,493,318
          Ratification of Deloitte
            & Touche LLP ...............  46,943,555          429,842           672,863
</TABLE>

                                       15

<PAGE>

- --------------------------------------------------------------------------------
                       THE BLACKROCK 1998 TERM TRUST INC.
                               INVESTMENT SUMMARY
- --------------------------------------------------------------------------------

THE TRUST'S INVESTMENT OBJECTIVE

The  BlackRock  1998  Term  Trust  Inc.'s  investment  objective  is to manage a
portfolio of investment  grade fixed income  securities that will return $10 per
share (the initial  public  offering price per share) to investors on or shortly
before December 31, 1998 while providing high monthly income.

WHO MANAGES THE TRUST?

BlackRock  Financial  Management,   Inc.   ("BlackRock")  is  an  SEC-registered
investment  adviser.  BlackRock and its  affiliates  currently  manage over $119
billion on behalf of tax tax-exempt clients worldwide.  Strategies include fixed
income,  equity and cash any may  incorporate  both  domestic and  international
securities.  Domestic fixed income strategies utilize the government,  mortgage,
corporate and municipal bond  sectors.BlackRock  manages  twenty-one  closed-end
funds that are traded on either the New York or American stock exchanges,  and a
$23 billion  family of open-end  equity and bond  funds.  Current  institutional
clients number 334, domiciled in the United States and overseas.

WHAT CAN THE TRUST INVEST IN?

The Trust may invest in all fixed income  securities  rated  investment grade or
higher ("AAA",  "AA",  "A" or "BBB").  Examples of securities in which the Trust
may invest include U.S. government and government agency securities, zero coupon
securities,  mortgage-backed securities, corporate debt securities, asset-backed
securities,  U.S.  dollar-denominated  foreign  debt  securities  and  municipal
securities. Under current market conditions,  BlackRock expects that the primary
investments of the Trust will be U.S. government  securities,  securities backed
by government  agencies (such as mortgage-backed  securities) and corporate debt
securities.

WHAT IS THE ADVISER'S INVESTMENT STRATEGY?

The Adviser will seek to meet the Trust's  investment  objective by managing the
assets of the Trust so as to return the initial  offering  price ($10 per share)
at maturity.  The Trust will implement a conservative strategy that will seek to
closely match the maturity of the assets of the portfolio with the future return
of the  initial  investment  at the end of  1998.  At the  Trust's  termination,
BlackRock expects that the value of the securities which have matured,  combined
with the value of the securities that are sold, will be sufficient to return the
initial offering price to investors.  On a continuous basis, the Trust will seek
its objective by actively managing its assets in relation to market  conditions,
interest rate changes and,  importantly,  the remaining  term to maturity of the
Trust.

In addition to seeking the return of the  initial  offering  price,  the Advisor
also seeks to provide high monthly income to investors.  The portfolio  managers
will attempt to achieve this  objective by investing in securities  that provide
competitive  income.  In  addition,  leverage  will be used (in an  amount up to
331/3% of total  assets) to enhance  the  income of the  portfolio.  In order to
maintain  competitive  yields as the Trust approaches  maturity and depending on
market  conditions,  the Adviser will attempt to purchase  securities  with call
protection  or  maturities  as close to the Trust's  maturity  date as possible.
Securities with call protection should provide the portfolio with some degree of
protection against  reinvestment risk during times of lower prevailing  interest
rates. Since the Trust's primary goal is to return the initial offering price at
maturity, any cash that the Trust receives prior to its maturity date (i.e. cash
from early and  regularly  scheduled  payments of principal  on  mortgage-backed
securities) will be reinvested in securities with maturities which coincide with
the remaining term of the Trust. Since shorter-term  securities  typically yield
less than longer-term securities,  this strategy will likely result in a decline
in the Trust's income over time. However, the Adviser will attempt to maintain a
yield which is competitive with a comparable maturity Treasury at the same point
on the yield curve (i.e.  if the Trust has three years left until its  maturity,
the  Adviser  will  attempt  to  maintain  a yield  at a  spread  over a  3-year
Treasury).  It is  important  to note that the Trust  will be  managed  so as to
preserve the integrity of the return of the initial offering price.

                                       16

<PAGE>

HOW ARE THE TRUST'S SHARES PURCHASED AND SOLD? DOES THE TRUST PAY DIVIDENDS
REGULARLY?

The  Trust's  shares are traded on the New York Stock  Exchange  which  provides
investors with  liquidity on a daily basis.  Orders to buy or sell shares of the
Trust must be placed through a registered broker or financial advisor. The Trust
pays monthly  dividends which are typically paid on the last business day of the
month. For shares held in the shareholder's name, dividends may be reinvested in
additional  shares of the fund through the Trust's transfer agent,  State Street
Bank &Trust  Company.  Investors who wish to hold shares in a brokerage  account
should check with their financial  advisor to determine  whether their brokerage
firm offers dividend reinvestment services.

LEVERAGE CONSIDERATIONS IN A TERM TRUST

Under current  market  conditions,  leverage  increases the income earned by the
Trust.  The  Trust  employs  leverage  primarily  through  the  use  of  reverse
repurchase  agreements  and dollar rolls.  Leverage  permits the Trust to borrow
money at short-term  rates and reinvest that money in  longer-term  assets which
typically offer higher interest  rates.  The difference  between the cost of the
borrowed funds and the income earned on the proceeds that are invested in longer
term assets is the benefit to the Trust from leverage. In general, the portfolio
is typically leveraged at approximately 331/3% of total assets.

Leverage also increases the duration (or price  volatility of the net assets) of
the  Trust,which  can improve the  performance  of the fund in a declining  rate
environment,  but can cause net  assets to decline  faster  than the market in a
rising rate environment. BlackRock's portfolio managers continuously monitor and
regularly  review the  Trust's  use of  leverage  and the Trust may  reduce,  or
unwind, the amount of leverage employed should BlackRock consider that reduction
to be in the best interests of the shareholders.

SPECIAL CONSIDERATIONS AND RISK FACTORS RELEVANT TO TERM TRUSTS

THE TRUST IS  INTENDED  TO BE A  LONG-TERM  INVESTMENT  AND IS NOT A  SHORT-TERM
TRADING VEHICLE.

RETURN OF INITIAL  INVESTMENT.  Although the objective of the Trust is to return
its initial offering price upon termination, there can be no assurance that this
objective will be achieved.

DIVIDEND  CONSIDERATIONS.  The income and dividends paid by the Trust are likely
to  decline  to some  extent  over the term of the Trust due to the  anticipated
shortening of the dollar-weighted average maturity of the Trust's assets.

LEVERAGE.  The Trust utilizes leverage through reverse repurchase agreements and
dollar rolls,  which  involves  special  risks.  The Trust's net asset value and
market value may be more volatile due to its use of leverage.

MARKET PRICE OF SHARES.  The shares of closed-end  investment  companies such as
the Trust trade on the New York Stock  Exchange  (NYSE symbol:  BBT) and as such
are subject to supply and demand influences.  As a result, shares may trade at a
discount or a premium to their net asset value.

MORTGAGE-BACKED   AND   ASSET-BACKED   SECURITIES.   The  cash  flow  and  yield
characteristics of these securities differ from traditional debt securities. The
major  differences  typically include more frequent payments and the possibility
of prepayments which will change the yield to maturity of the security.

CORPORATE  DEBT  SECURITIES.  The value of corporate debt  securities  generally
varies inversely with changes in prevailing market interest rates. The Trust may
be subject to certain  reinvestment  risks in environments of declining interest
rates.

ZERO COUPON SECURITIES. Such securities receive no cash flows prior to maturity,
therefore, interim price movement on the securities are generally more sensitive
to interest rate movements than securities  that make periodic coupon  payments.
These securities appreciate in value over time and can play an important role in
helping the Trust achieve its primary objective.

ILLIQUID  SECURITIES.  The Trust may  invest in  securities  that are  illiquid,
although  under current  market  conditions the Trust expects to do so to only a
limited extent. These securities involve special risks.

NON-U.S  SECURITIES.  The Trust may invest less than 10% of its total  assets in
non-U.S.  dollar-denominated  securities  which  involve  special  risks such as
currency, political and economic risks, although under current market conditions
does not do so.

ANTITAKEOVER  PROVISIONS.  Certain antitakeover provisions will make a change in
the Trust's  business or management  more difficult  without the approval of the
Trust's Board of Directors and may have the effect of depriving  shareholders of
an  opportunity  to sell their shares at a premium above the  prevailing  market
price.

                                       17

<PAGE>

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
                       THE BLACKROCK 1998 TERM TRUST INC.
                                    GLOSSARY
- --------------------------------------------------------------------------------
<S>                            <C>
ADJUSTABLE RATE MORTGAGE-      Mortgage  instruments  with  interest  rates that
BACKED SECURITIES (ARMS):      adjust at  periodic  intervals at  a fixed amount
                               relative to the market  levels of interest  rates
                               as  reflected  in  specified  indexes.  ARMs  are
                               backed  by   mortgage   loans   secured  by  real
                               property.

ASSET-BACKED SECURITIES:       Securities backed by various types of receivables
                               such as automobile and credit card receivables.

CLOSED-END FUND:               Investment vehicle which initially offers a fixed
                               number of shares and trades on a stock  exchange.
                               The fund invests in a portfolio of  securities in
                               accordance with its stated investment  objectives
                               and  policies.   One  of  the   advantages  of  a
                               closed-end   fund  is  the   diversification   it
                               provides through its multiple holdings.

COLLATERALIZED                 Mortgage-backed securities which separate mortgage
MORTGAGE OBLIGATIONS (CMOS):   pools  into  short-,   medium-,   and   long-term
                               securities with different  priorities for receipt
                               of principal and  interest.  Each class is paid a
                               fixed or  floating  rate of  interest  at regular
                               intervals.  Also known as multiple-class mortgage
                               pass-throughs.

DISCOUNT:                      When a fund's net asset value is greater than its
                               stock  price the fund is said to be  trading at a
                               discount.

DIVIDEND:                      This  is  income  generated  by  securities  in a
                               portfolio and distributed to  shareholders  after
                               the  deduction of expenses.  This Trust  declares
                               and pays dividends on a monthly basis.

DIVIDEND REINVESTMENT:         Shareholders  may elect to have all dividends and
                               distributions  of  capital  gains   automatically
                               reinvested into additional shares of the Trust.

FHA:                           Federal  Housing  Administration,   a  government
                               agency  that  facilitates  a  secondary  mortgage
                               market by  providing  an agency  that  guarantees
                               timely  payment  of  interest  and  principal  on
                               mortgages.

FHLMC:                         Federal  Home  Loan   Mortgage   Corporation,   a
                               publicly owned,  federally chartered  corporation
                               that  facilitates a secondary  mortgage market by
                               purchasing mortgages from lenders such as savings
                               institutions  and reselling  them to investors by
                               means of mortgage-backed securities.  Obligations
                               of  FHLMC   are  not   guaranteed   by  the  U.S.
                               government,  however;  they are backed by FHLMC's
                               authority  to  borrow  from the U.S.  government.
                               Also known as Freddie Mac.

FNMA:                          Federal National Mortgage Association, a publicly
                               owned,   federally  chartered   corporation  that
                               facilitates  a  secondary   mortgage   market  by
                               purchasing mortgages from lenders such as savings
                               institutions  and reselling  them to investors by
                               means of mortgage-backed securities.  Obligations
                               of  FNMA   are  not   guaranteed   by  the   U.S.
                               government,  however;  they are  backed by FNMA's
                               authority  to  borrow  from the U.S.  government.
                               Also known as Fannie Mae.

GNMA:                          Government National Mortgage Association,  a U.S.
                               government  agency that  facilitates  a secondary
                               mortgage  market  by  providing  an  agency  that
                               guarantees   timely   payment  of  interest   and
                               principal on mortgages.  GNMA's  obligations  are
                               supported  by the full  faith  and  credit of the
                               U.S. Treasury. Also known as Ginnie Mae.

GOVERNMENT SECURITIES:         Securities  issued  or  guaranteed  by  the  U.S.
                               government,   or   one   of   its   agencies   or
                               instrumentalities,   such  as  GNMA   (Government
                               National  Mortgage  Association),  FNMA  (Federal
                               National Mortgage Association) and FHLMC (Federal
                               Home Loan Mortgage Corporation).


INVERSE-FLOATIN GRATE          instruments  with coupons that adjust at periodic
MORTGAGES:                     intervals  according  to  a  formula  which  sets
                               inversely  with  a  market  level  interest  rate
                               index.

                                       18

<PAGE>

INTEREST-ONLY SECURITIES       Mortgage   securities   that   receive  only  the
(I/O):                         interest  cash flows from an  underlying  pool of
                               mortgage   loans   or   underlying   pass-through
                               securities. Also known as STRIP.

MARKET PRICE:                  Price  per  share of a  security  trading  in the
                               secondary market.  For a closed-end fund, this is
                               the price at which  one share of the fund  trades
                               on the stock exchange. If you were to buy or sell
                               shares,  you  would  pay or  receive  the  market
                               price.

MORTGAGE DOLLAR ROLLS:         A mortgage  dollar roll is a transaction in which
                               the Trust sells  mortgage-backed  securities  for
                               delivery in the current month and  simultaneously
                               contracts  to  repurchase  substantially  similar
                               (although not the same) securities on a specified
                               future date. During the "roll" period,  the Trust
                               does not receive  principal and interest payments
                               on the securities,  but is compensated for giving
                               up  these  payments  by  the  difference  in  the
                               current  sales  price (for which the  security is
                               sold) and lower price that the Trust pays for the
                               similar  security  at the end date as well as the
                               interest  earned  on  the  cash  proceeds  of the
                               initial sale.

MORTGAGE PASS-THROUGHS:        Mortgage-backed  securities issued by Fannie Mae,
                               Freddie Mac or Ginnie Mae.

MULTIPLE-CLASS PASS-THROUGHS:  Collateralized Mortgage Obligations.

NET                            ASSET VALUE  (NAV):  Net asset value is the total
                               market value of all  securities  and other assets
                               held by the  Trust,  plus  income  accrued on its
                               investments,   minus  any  liabilities  including
                               accrued expenses,  divided by the total number of
                               outstanding shares. It is the underlying value of
                               a single  share on a given day.  Net asset  value
                               for the Trust is calculated  weekly and published
                               in  Barron's  on  Saturday  and The  Wall  Street
                               Journal each Monday.

PRINCIPAL-ONLY                 SECURITIES   (P/O):   Mortgage   securities  that
                               receive  only the  principal  cash  flows from an
                               underlying  pool of mortgage  loans or underlying
                               pass-through securities. Also known as STRIP.

PROJECT LOANS:                 Mortgages for multi-family, low- to middle-income
                               housing.

PREMIUM:                       When a fund's stock price is greater than its net
                               asset value,  the fund is said to be trading at a
                               premium.

REMIC:                         A real estate  mortgage  investment  conduit is a
                               multiple-class security backed by mortgage-backed
                               securities or whole  mortgage loans and formed as
                               a trust, corporation,  partnership, or segregated
                               pool of assets  that  elects to be  treated  as a
                               REMIC for federal tax purposes. Generally, Fannie
                               Mae REMICs are formed as trusts and are backed by
                               mortgage-backed securities.

RESIDUALS:                     Securities     issued    in    connection    with
                               collateralized    mortgage    obligations    that
                               generally represent the excess cash flow from the
                               mortgage assets  underlying the CMO after payment
                               of  principal  and  interest  on  the  other  CMO
                               securities and related administrative expenses.

REVERSE                        In a  reverse  repurchase  agreement,  the  Trust
                               sells securities and agrees to repurchase them at

REPURCHASE AGREEMENTS:         a mutually  agreed  date and price.  During  this
                               time,   the  Trust   continues   to  receive  the
                               principal   and  interest   payments   from  that
                               security.  At  the  end of the  term,  the  Trust
                               receives the same  securities  that were sold for
                               the same initial  dollar  amount plus interest on
                               the cash proceeds of the initial sale.

STRIPPED MORTGAGE BACKED       Arrangements   in  which  a  pool  of  assets  is
SECURITIES:                    separated into two classes that receive different
                               proportions   of  the  interest   and   principal
                               distributions  from  underlying   mortgage-backed
                               securities. IO's and PO's are examples of strips.
</TABLE>
                                       19

<PAGE>


[BlackRock logo]

DIRECTORS
Laurence D. Fink, Chairman
Andrew F. Brimmer
Richard E. Cavanagh
Kent Dixon
Frank J. Fabozzi
James Grosfeld
James Clayburn La Force, Jr.
Walter F. Mondale
Ralph L. Schlosstein

OFFICERS
Ralph L. Schlosstein, President
Scott Amero, Vice President
Keith T. Anderson, Vice President
Michael C. Huebsch, Vice President
Robert S. Kapito, Vice President
Richard M. Shea, Vice President/Tax
Henry Gabbay, Treasurer
James Kong, Assistant Treasurer
Karen H. Sabath, Secretary

INVESTMENT ADVISER
BlackRock Financial Management, Inc.
345 Park Avenue
New York, NY 10154
(800) 227-7BFM

ADMINISTRATOR
Prudential Investments Fund Management LLC
Gateway Center Three
100 Mulberry Street
Newark, NJ  10702-4077

CUSTODIAN AND TRANSFER AGENT
State Street Bank and Trust Company
One Heritage Drive
North Quincy, MA 02171
(800) 699-1BFM

INDEPENDENT AUDITORS
Deloitte & Touche LLP
Two World Financial Center
New York, NY 10281-1434

LEGAL COUNSEL
Skadden, Arps, Slate, Meagher & Flom LLP
919 Third Avenue
New York, NY 10022

     The accompanying  financial statements as of June 30, 1998 were not audited
and accordingly, no opinion is expressed on them.

     This  report  is for  shareholder  information.  This  is not a  prospectus
intended for use in the purchase or sale of any securities.

                       THE BLACKROCK 1998 TERM TRUST INC.
                 c/o Prudential Investments Fund Management LLC
                              Gateway Center Three
                               100 Mulberry Street
                              Newark, NJ 10702-4077
                                 (800) 227-7BFM
                                                    

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09247N-10-3


THE BLACKROCK
1998 TERM
TRUST INC.
=================================
Semi-Annual Report
June 30, 1998


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