<SEC-DOCUMENT>0000844779-16-000130.txt : 20160628
<SEC-HEADER>0000844779-16-000130.hdr.sgml : 20160628
<ACCEPTANCE-DATETIME>20160628112114
ACCESSION NUMBER:		0000844779-16-000130
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20160430
FILED AS OF DATE:		20160628
DATE AS OF CHANGE:		20160628
EFFECTIVENESS DATE:		20160628

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK MUNIASSETS FUND, INC.
		CENTRAL INDEX KEY:			0000901243
		IRS NUMBER:				223239638
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-07642
		FILM NUMBER:		161735202

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		800-441-7762

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIASSETS FUND INC
		DATE OF NAME CHANGE:	19930714

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIINCOME FUND INC
		DATE OF NAME CHANGE:	19930517
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B
<SEQUENCE>1
<FILENAME>answer.fil
<TEXT>
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000 D000000 N
000 E000000 NF
000 F000000 Y
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000 I000000 6.1
000 J000000 A
001 A000000 BLACKROCK MUNIASSETS FUND, INC.
001 B000000 811-07642
001 C000000 8004417762
002 A000000 100 BELLEVUE PARKWAY
002 B000000 WILMINGTON
002 C000000 DE
002 D010000 19809
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012 A000001 COMPUTERSHARE TRUST COMPANY, N.A.
012 B000001 85-11340
012 C010001 CANTON
012 C020001 MA
012 C030001 02021
012 A000002 THE BANK OF NEW YORK MELLON (PREFERRED)
012 B000002 85-05006
012 C010002 NEW YORK
012 C020002 NY
012 C030002 10289
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 BOSTON
013 B020001 MA
013 B030001 02116
014 A000001 BLACKROCK EXECUTION SERVICES
014 B000001 8-48719
014 A000002 BLACKROCK INVESTMENTS, LLC
014 B000002 8-48436
014 A000003 HARRIS WILLIAMS LLC
014 B000003 8-53380
014 A000004 PNC CAPITAL MARKETS, INC.
014 B000004 8-32493
<PAGE>      PAGE  2
014 A000005 PNC INVESTMENTS LLC
014 B000005 8-66195
014 A000006 SOLEBURY CAPITAL, LLC
014 B000006 8-67548
015 A000001 STATE STREET BANK & TRUST COMPANY
015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02210
015 E010001 X
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019 C000000 BLKRKADVSR
020 A000001 BANK OF AMERICA CORP
020 B000001 56-0906609
020 C000001      3
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022 A000001 FFI INSTITUTIONAL TAX-EXEMPT FUND
022 B000001 22-2509978
022 C000001     60918
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022 A000002 BLACKROCK LIQUIDITY FUNDS, MUNICASH
022 B000002 52-0983343
022 C000002     23035
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022 A000003 CITIGROUP GLOBAL MARKETS INC.
022 B000003 11-2418191
022 C000003     17587
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022 A000004 BANK OF AMERICA CORP
022 B000004 56-0906609
022 C000004     22589
022 D000004      7188
022 A000005 J.P. MORGAN SECURITIES INC
022 B000005 13-3379014
022 C000005     14497
022 D000005      7972
022 A000006 PERSHING LLC
022 B000006 13-2741729
022 C000006     11061
022 D000006     10767
022 A000007 MORGAN STANLEY & CO. INCORPORATED
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022 C000007      8521
022 D000007      7554
022 A000008 BANK OF NEW YORK
022 B000008 13-4941102
022 C000008     10850
022 D000008      3864
022 A000009 WELLS FARGO BANK NA
<PAGE>      PAGE  3
022 B000009 94-1347393
022 C000009      5592
022 D000009      6066
022 A000010 BARCLAYS CAPITAL INC.
022 B000010 06-1031656
022 C000010      5538
022 D000010      1683
023 C000000     196853
023 D000000     163226
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077 A000000 Y
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078  000000 N
080 A000000 FEDERAL INSURANCE COMPANY
080 B000000 St. Paul Fire & Marine Insurance Company
080 C000000    61025
081 A000000 Y
081 B000000  75
082 A000000 N
082 B000000        0
083 A000000 N
083 B000000        0
084 A000000 N
084 B000000        0
085 A000000 Y
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087 A030000 MUA
087 B010000 PREFERRED STOCK
088 A000000 N
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088 C000000 N
088 D000000 N
SIGNATURE   NEAL J. ANDREWS
TITLE       CFO

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>2
<FILENAME>missouri77o.txt
<TEXT>
<PAGE>

                                                            [LOGO OF BLACKROCK]
Rule 10f-3 Transaction Form

Acquisition of Securities During Affiliated Underwritings

Participating Funds

..  U.S. Registered Funds (Name of Fund, Aladdin Ticker):
   BlackRock Allocation Target Shares : Series E Portfolio (BATSE)
   BlackRock High Yield Municipal Fund (BR-HYMUNI)
   BlackRock Long-Term Municipal Advantage Trust (BTA)
   BlackRock MuniAssets Fund, Inc. (MUA)

The Offering

Key Characteristics (Complete ALL Fields)

-------------------------------------
Date of                   01-15-2016
Offering Commencement:
------------------------  -----------
Security Type:            BND/MUNI
-------------------------------------
-------------------------------------------------------------------------------
Issuer                       Health and Educational Facilities Authority of
                             the State of Missouri Senior Living Facilities
                             Revenue Bonds, Series 2016A
---------------------------  --------------------------------------------------
Selling Underwriter          B.C. Ziegler and Company
---------------------------  --------------------------------------------------
Affiliated Underwriter(s)    [X]  PNC Capital markets, LLC
                             [_]
---------------------------  --------------------------------------------------
List of Underwriter(s)       B.C. Ziegler and Company, PNC Capital markets, LLC
-------------------------------------------------------------------------------

Transaction Details

-------------------------------
Date of Purchase    01-15-2016
-------------------------------
-------------------------------------------------------------------------------
Purchase Price/Share      $108.781
(per share / % of par)    $110.965 Total Commission, Spread or Profit    0.975%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
1. Aggregate Principal Amount Purchased (a+b)                      $  3,000,000
-----------------------------------------------------------------  ------------
    a. US Registered Funds (Appendix attached with individual
       Fund/Client purchase)                                       $  3,000,000
-----------------------------------------------------------------  ------------
    b. Other BlackRock Clients                                              N/A
-----------------------------------------------------------------  ------------
2. Aggregate Principal Amount of Offering                          $ 53,320,000
-----------------------------------------------------------------  ------------
Fund Ratio
[Divide Sum of #1 by #2]
Must be less than 0.25                                                  0.05626
-------------------------------------------------------------------------------

                                  Page 1 of 2

<PAGE>

Rule 10f-3 Report - Definitions


Legal Requirements

Offering Type (check ONE)

The securities fall into one of the following transaction types (see
Definitions):

[_]  U.S. Registered Public         [Issuer must have 3 years of continuous
     Offering...................... operations]

[_]  Eligible Rule 144A Offering... [Issuer must have 3 years of continuous
                                    operations]

[X]  Eligible Municipal Securities

[_]  Eligible Foreign Offering..... [Issuer must have 3 years of continuous
                                    operations]

[_]  Government Securities          [Issuer must have 3 years of continuous
     Offering...................... operations]

Timing and Price (check ONE or BOTH)

[X]The securities were purchased before the end of the first day on which any
   sales were made, at a price that was not more than the price paid by each
   other purchaser of securities in that offering or in any concurrent offering
   of the securities; and

[_]If the securities are offered for subscription upon exercise of rights, the
   securities were purchased on or before the fourth day before the day on
   which the rights offering terminated.

Firm Commitment Offering (check ONE)

[X]  YES  The securities were offered pursuant to an underwriting or similar
[_]  NO   agreement under which the underwriters were committed to purchase
          all of the securities being offered, except those purchased by
          others pursuant to a rights offering, if the underwriters purchased
          any of the securities.

No Benefit to Affiliated Underwriter (check ONE)

[X]  YES  No affiliated underwriter was a direct or indirect participant in,
[_]  NO   or benefited directly or indirectly from, the transaction.

Completed by:  Dipankar Banerjee                              Date: 01-21-2016
               ---------------------------------------------
               Global Syndicate Team Member

Approved by:   Steven DeLaura                                 Date: 01-21-2016
               ---------------------------------------------
               Global Syndicate Team Member

<PAGE>

Rule 10f-3 Report - Definitions

Definitions

 Term                       Definition
 Fund Ratio                 Number appearing at the bottom of page 1 of 2 of
                            the Rule 10f-3 Report form. It is the sum of the
                            Funds' participation in the offering by the Funds
                            and other accounts managed by BlackRock divided by
                            the total amount of the offering.

 Eligible Foreign Offering  The securities are sold in a public offering
                            conducted under the laws of a country other than
                            the United States and

                            (a)the offering is subject to regulation in such
                               country by a "foreign financial regulatory
                               authority," as defined in Section 2(a)(50) of
                               the Investment Company Act of 1940;

                            (b)the securities were offered at a fixed price to
                               all purchasers in the offering (except for any
                               rights to purchase securities that are required
                               by law to be granted to existing security
                               holders of the issuer);

                            (c)financial statements, prepared and audited as
                               required or permitted by the appropriate
                               foreign financial regulatory authority in such
                               country, for the two years prior to the
                               offering, were made available to the public and
                               prospective purchasers in connection with the
                               offering; and

                            (d)if the issuer is a "domestic issuer," i.e.,
                               other than a foreign government, a national of
                               any foreign country, or a corporation or other
                               organization incorporated or organized under
                               the laws of any foreign country, it (1) has a
                               class of securities registered pursuant to
                               section 12(b) or 12(g) of the Securities
                               Exchange Act of 1934 or is required to file
                               reports pursuant to section 15(d) of that act,
                               and (2) has filed all the material required to
                               be filed pursuant to section 13(a) or 15(d) of
                               that act for a period of at least 12 months
                               immediately preceding the sale of securities
                               (or for such shorter period that the issuer was
                               required to file such material)

<PAGE>

Rule 10f-3 Report - Definitions

Term                            Definition
Eligible Municipal Securities   The securities:

                                (a)are direct obligations of, or obligations
                                   guaranteed as to principal or interest by,
                                   a State or any political subdivision
                                   thereof, or any agency or instrumentality
                                   of a State or any political subdivision
                                   thereof, or any municipal corporate
                                   instrumentality of one or more States, or
                                   any security which is an industrial
                                   development bond (as defined in section
                                   103(c)(2) of Title 26) the interest on
                                   which is excludable from gross income under
                                   certain provisions of the Internal Revenue
                                   Code;

                                (b)are sufficiently liquid that they can be
                                   sold at or near their carrying value within
                                   a reasonably short period of time; and

                                (c)either

                                    (1)are subject to no greater than moderate
                                       credit risk; or

                                    (2)if the issuer of the municipal
                                       securities, or the entity supplying the
                                       revenues or other payments from which
                                       the issue is to be paid, has been in
                                       continuous operation for less than
                                       three years, including the operation of
                                       any predecessors, the securities are
                                       subject to a minimal or low amount of
                                       credit risk.


                                Also, purchases of municipal securities may
                                not be designated as group sales or otherwise
                                allocated to the account of any prohibited
                                seller (i.e., an affiliated underwriter).

Eligible Rule 144A Offering     The securities are sold in an offering where

                                (a)the securities are offered or sold in
                                   transactions exempt from registration under
                                   Section 4(2) of the Securities Act of 1933,
                                   Rule 144A thereunder, or Rules 501-508
                                   thereunder;

                                (b)the securities were sold to persons that
                                   the seller and any person acting on behalf
                                   of the seller reasonably believe to include
                                   qualified institutional buyers, as defined
                                   in Rule 144A ("QIBs"); and

                                (c)the seller and any person acting on behalf
                                   of the seller reasonably believe that the
                                   securities are eligible for resale to other
                                   QIBs pursuant to Rule 144A.

Government Securities Offering  The security is issued or guaranteed as to
                                principal or interest by the United States, or
                                by a person controlled or supervised by and
                                acting as an instrumentality of the Government
                                of the United States pursuant to authority
                                granted by the Congress of the United States;
                                or any certificate of deposit for any of the
                                foregoing.

<PAGE>

Rule 10f-3 Report - Definitions

Term                              Definition
U.S. Registered Public Offering.  The securities offered are registered under
                                  the Securities Act of 1933 that are being
                                  offered to the public.

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>3
<FILENAME>muni777b.txt
<TEXT>
<PAGE>

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To Shareholders and Board of Directors of BlackRock MuniAssets Fund, Inc.,
BlackRock MuniEnhanced Fund, Inc., BlackRock MuniHoldings Fund, Inc., BlackRock
MuniHoldings Fund II, Inc., BlackRock MuniHoldings Quality Fund, Inc.,
BlackRock Muni Intermediate Duration Fund, Inc., and BlackRock MuniVest
Fund II, Inc.:

In planning and performing our audits of the financial statements of BlackRock
MuniAssets Fund, Inc., BlackRock MuniEnhanced Fund, Inc., BlackRock
MuniHoldings Fund, Inc., BlackRock MuniHoldings Fund II, Inc., BlackRock
MuniHoldings Quality Fund, Inc., BlackRock Muni Intermediate Duration Fund,
Inc., and BlackRock MuniVest Fund II, Inc. (collectively, the "Funds"), as of
and for the year ended April 30, 2016, in accordance with the standards of the
Public Company Accounting Oversight Board (United States), we considered the
Funds' internal control over financial reporting, including controls over
safeguarding securities, as a basis for designing our auditing procedures for
the purpose of expressing our opinion on the financial statements and to comply
with the requirements of Form N-SAR, but not for the purpose of expressing an
opinion on the effectiveness of the Funds' internal control over financial
reporting. Accordingly, we express no such opinion.

The management of the Funds is responsible for establishing and maintaining
effective internal control over financial reporting. In fulfilling this
responsibility, estimates and judgments by management are required to assess
the expected benefits and related costs of controls. A fund's internal control
over financial reporting is a process designed to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally
accepted accounting principles. A fund's internal control over financial
reporting includes those policies and procedures that (1) pertain to the
maintenance of records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of the fund; (2)
provide reasonable assurance that transactions are recorded as necessary to
permit preparation of financial statements in accordance with generally
accepted accounting principles, and that receipts and expenditures of the fund
are being made only in accordance with authorizations of management and
directors of the fund; and (3) provide reasonable assurance regarding
prevention or timely detection of unauthorized acquisition, use, or disposition
of a fund's assets that could have a material effect on the financial
statements.

Because of its inherent limitations, internal control over financial reporting
may not prevent or detect misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may
become inadequate because of changes in conditions or that the degree of
compliance with the policies or procedures may deteriorate.

A deficiency in internal control over financial reporting exists when the
design or operation of a control does not allow management or employees, in the
normal course of performing their assigned functions, to prevent or detect
misstatements on a timely basis. A material weakness is a deficiency, or a
combination of deficiencies, in internal control over financial reporting, such
that there is a reasonable possibility that a material misstatement of the
Funds' annual or interim financial statements will not be prevented or detected
on a timely basis.

Our consideration of the Funds' internal control over financial reporting was
for the limited purpose described in the first paragraph and would not
necessarily disclose all deficiencies in internal control that might be
material weaknesses under standards established by the Public Company
Accounting Oversight Board (United States). However, we noted no deficiencies
in the Funds' internal control over financial reporting and their operation,
including controls for safeguarding securities that we consider to be a
material weakness, as defined above, as of April 30, 2016.

This report is intended solely for the information and use of management and
the Board of Directors of BlackRock MuniAssets Fund, Inc., BlackRock
MuniEnhanced Fund, Inc., BlackRock MuniHoldings Fund, Inc., BlackRock
MuniHoldings Fund II, Inc., BlackRock MuniHoldings Quality Fund, Inc.,
BlackRock Muni Intermediate Duration Fund, Inc., and BlackRock MuniVest
Fund II, Inc., and the Securities and Exchange Commission and is not intended
to be and should not be used by anyone other than these specified parties.

/s/ Deloitte & Touche LLP
Boston, Massachusetts
June 23, 2016
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
