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<SEC-DOCUMENT>0001287695-08-000587.txt : 20080929
<SEC-HEADER>0001287695-08-000587.hdr.sgml : 20080929
<ACCEPTANCE-DATETIME>20080929120724
ACCESSION NUMBER:		0001287695-08-000587
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20080731
FILED AS OF DATE:		20080929
DATE AS OF CHANGE:		20080929
EFFECTIVENESS DATE:		20080929

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK MUNIYIELD INSURED FUND, INC
		CENTRAL INDEX KEY:			0000883412
		IRS NUMBER:				223165131
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-06540
		FILM NUMBER:		081093085

	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:	MUNIYIELD INSURED FUND INC
		DATE OF NAME CHANGE:	19920717
</SEC-HEADER>
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<TYPE>NSAR-B
<SEQUENCE>1
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SIGNATURE   DONALD C. BURKE
TITLE       PRESIDENT

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>2
<FILENAME>myins77b.htm
<TEXT>
<!doctype html public "-//IETF//DTD HTML//EN">
<HTML>
<HEAD>
<TITLE>005 &nbsp;&nbsp;&nbsp;&nbsp;EXAMPLE A-1 &#8212; REPORT ON INTERNAL CONTROL &#8212; N-SAR LETTER ON A STAND ALONE FUND &#8212; NO MATERIAL WEAKNESSES</TITLE>
<META NAME="author" CONTENT="Daryl White (Open)">
<META NAME="date" CONTENT="09/29/2008">
</HEAD>
<BODY>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:4.6pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000">REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM</P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:4.6pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000">To the Shareholders and Board of Directors of <BR>
BlackRock MuniYield Insured Fund, Inc.:</P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:4.6pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000">In planning and performing our audit of the financial statements of BlackRock MuniYield Insured Fund, Inc. (the &quot;Fund&quot;) as of and for the period November 1, 2007 to &nbsp;July 31, 2008, in accordance with the standards of the Public Company Accounting Oversight Board (United States), we considered the Fund's 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 Fund's internal control over financial reporting.&nbsp;Accordingly, we express no such opinion.</P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:4.6pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000">The management of the Fund is responsible for establishing and maintaining effective internal control over financial reporting.&nbsp; In fulfilling this responsibility, estimates and judgments by management are required to assess the expected benefits and related costs of controls.&nbsp; A company'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.&nbsp; A company'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 company; (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 company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of a company's assets that could have a material effect on the financial statements.</P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:4.6pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000">Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.&nbsp; 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.</P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:4.6pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000">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.&nbsp; 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 company's annual or interim financial statements will not be prevented or detected on a timely basis.</P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:4.6pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000">Our consideration of the Fund's 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).&nbsp; However, we noted no deficiencies in the Fund's internal control over financial reporting and its operation, including controls for safeguarding securities, that we consider to be a material weakness, as defined above, as of July 31, 2008.</P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:4.6pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000">This report is intended solely for the information and use of management and the Board of Directors of BlackRock MuniYield Insured Fund, 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.</P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:11pt; font-size:11pt; color:#000000"><I>DELOITTE &amp; TOUCHE LLP</I></P>
<P style="margin-left:0pt; margin-top:4.6pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:11pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000">Princeton, New Jersey</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000">September 25, 2008</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:11pt; color:#000000"><BR></P>
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<DOCUMENT>
<TYPE>EX-99.77D POLICIES
<SEQUENCE>3
<FILENAME>myins77d.htm
<TEXT>
<!doctype html public "-//IETF//DTD HTML//EN">
<HTML>
<HEAD>
<META NAME="author" CONTENT="Daniel Phillips">
<META NAME="date" CONTENT="09/25/2008">
</HEAD>
<BODY>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000"><U>BlackRock MuniYield Insured Fund, Inc.</U></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:12pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000">77D(g)</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000">Policies with respect to security investments</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:12pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000">Effective September 12, 2008, the Board of Directors of BlackRock MuniYield Insured Fund, Inc. (the &#147;Fund&#148;) approved the following change in the Fund&#146;s non-fundamental investment policies:</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:12pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000"><U>Old Investment Guideline</U></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000">Under normal market conditions, the Fund is required to invest at least 80% of its assets in municipal bonds insured by insurers with claims-paying ability of AAA at the time of investment.</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:12pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000"><U>New Investment Guideline</U></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:12pt; font-size:12pt; color:#000000">Under normal market conditions, the Fund is required to invest at least 80% of its assets in municipal bonds insured by insurance providers or other entities with claims-paying abilities rated at least investment grade at the time of investment.</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:12pt; color:#000000"><BR></P>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>4
<FILENAME>myins77o.htm
<TEXT>
<!doctype html public "-//IETF//DTD HTML//EN">
<HTML>
<HEAD>
<TITLE>10F-3 TRANSACTIONS</TITLE>
<META NAME="author" CONTENT="reillhe">
<META NAME="date" CONTENT="09/11/2008">
</HEAD>
<BODY>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/13/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Idaho Housing and Finance Assoc. Single Family Mortgage</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>46,250,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>3,555,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Lehman Brothers, Citigroup Global Markets Inc., D.A. Davidson &amp; Co., A.G. Edwards &amp; Sons, Inc., Edward D. Jones &amp; Co., Merrill Lynch &amp; Co., Piper Jaffray, Seattle-Northwest Securities Corporation, Zions First National Bank Capital Markets</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/13/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Puerto Rico Sales Tax Financing Corp.</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>2,667,603,528</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>20,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Goldman, Sachs &amp; Co., Lehman Brothers A.G. Edwards &amp; Sons, Inc.,Banc of America Securities LLC, BBVAPR MSD, Bear, Stearns &amp; Co. Inc., Citigroup Global Markets Inc., First Albany Capital Inc., J.P. Morgan Securities, Inc., Loop Capital Markets, Merrill Lynch &amp; Co., Morgan Stanley &amp; Co. Incorporated., Oriental Financial Services, Popular Securities, Inc., RBC Capital Markets, Samuel A. Ramirez &amp; Co., Inc., Santander Securities, UBS Securities LLC, Wachovia Bank, National Association</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/13/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Puerto Rico Sales Tax Financing Corp.</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>2,667,603,528</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>3,600,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Goldman, Sachs &amp; Co., Lehman Brothers A.G. Edwards &amp; Sons, Inc.,Banc of America Securities LLC, BBVAPR MSD, Bear, Stearns &amp; Co. Inc., Citigroup Global Markets Inc., First Albany Capital Inc., J.P. Morgan Securities, Inc., Loop Capital Markets, Merrill Lynch &amp; Co., Morgan Stanley &amp; Co. Incorporated., Oriental Financial Services, Popular Securities, Inc., RBC Capital Markets, Samuel A. Ramirez &amp; Co., Inc., Santander Securities, UBS Securities LLC, Wachovia Bank, National Association</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/19/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Mass Health &amp; Educational Facilities Authority</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>173,510,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>10,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Citigroup Global Markets Inc, Banc of America Securities LLC, Merrill Lynch &amp; Co.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/20/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>South Carolina Pub Svc Santee Cooper</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>342,525,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>1,500,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000">Citigroup Global Markets Inc., Goldman, Sachs &amp; Co., Bear, Stearns &amp; Co., Merrill Lynch &amp; Co. , Morgan Stanley &amp; Co. Incorporated</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/20/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>South Carolina Pub Svc Santee Cooper</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>342,525,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>5,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000">Citigroup Global Markets Inc., Goldman, Sachs &amp; Co., Bear, Stearns &amp; Co., Merrill Lynch &amp; Co. , Morgan Stanley &amp; Co. Incorporated</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/20/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>South Carolina Pub Svc Santee Cooper</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>342,525,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7,200,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000">Citigroup Global Markets Inc., Goldman, Sachs &amp; Co., Bear, Stearns &amp; Co., Merrill Lynch &amp; Co. , Morgan Stanley &amp; Co. Incorporated</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>8/23/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>City of San Jose California, Airport Revenue Bond</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>725,015,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7,965,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#0000FF" align=center>Lehman Brothers; Citigroup Global Markets Inc.; Merrill Lynch &amp; Co.; E.J. De La Rosa &amp; Co., Inc.; Goldman, Sachs &amp; Co.; Loop Capital Markets; Morgan Stanley &amp; Co. Incorporated; RBC Capital Markets</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>8/23/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>New York State Dorm Authority</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>296,075,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>20,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Goldman, Sachs &amp; Co.; Banc of America Securities LLC; Bear, Stearns &amp; Co. Inc.; Citigroup Global Markets Inc.; J.B. Hanauer &amp; Company; Jackson Securities, LLC; J.P. Morgan Securities Inc.; Lehman Brothers; Merrill Lynch &amp; Co.; Morgan Stanley &amp; Co. Incorporated; M.R. Beal &amp; Company</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>8/23/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>New York State Dorm Authority</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>296,075,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>10,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Goldman, Sachs &amp; Co.; Banc of America Securities LLC; Bear, Stearns &amp; Co. Inc.; Citigroup Global Markets Inc.; J.B. Hanauer &amp; Company; Jackson Securities, LLC; J.P. Morgan Securities Inc.; Lehman Brothers; Merrill Lynch &amp; Co.; Morgan Stanley &amp; Co. Incorporated; M.R. Beal &amp; Company</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>8/24/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Illinois Municipal Electric Agency</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>605,360,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>15,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>J.P. Morgan Securities Inc.; A.G. Edwards &amp; Sons, Inc.; Bear, Stearns &amp; Co. Inc.; Goldman, Sachs &amp; Co.; Merrill Lynch &amp; Co</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>8/24/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Illinois Municipal Electric Agency</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>605,360,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>25,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>J.P. Morgan Securities Inc.; A.G. Edwards &amp; Sons, Inc.; Bear, Stearns &amp; Co. Inc.; Goldman, Sachs &amp; Co.; Merrill Lynch &amp; Co</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>10/3/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>NEW YORK ST TWY AUTH GEN REV</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>1,008,910,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>2,775,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Citi, JPMorgan, M.R. Beal &amp; Company, Merrill Lynch &amp; Co., Raymond James &amp; Associates, Inc., Bear, Stearns &amp; Co. Inc, RBC Capital Markets, UBS Investment Bank, KeyBanc Capital Markets, Wachovia Bank, National Association</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>10/4/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Commonwealth of Puerto Rico Public Improvement Refunding Bonds</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>330,795,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>5,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>UBS Investment Bank; Lehman Brothers; Morgan Stanley; Banc of America Securities LLC; BBVAPR MSD; Bear, Stearns &amp; Co., Inc.; Citigroup Global Markets Inc.; DEPFA First Albany Securities LLC; Goldman, Sachs &amp; Co.; J.P. Morgan Securities Inc.; Loop Capital</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>10/11/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Regents of the University of California</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>415,355,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>12,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000">Lehman Brothers; Backstrom McCarley Berry &amp; Co., LLC; Citigroup Global Markets Inc.; Rice Financial Products Company; Bear, Stearns &amp; Co. Inc.; Jackson Securities, LLC; Merrill Lynch &amp; Co.; Prager, Sealy &amp; Co., LLC; Ross Sinclaire &amp; Associates Inc.; SL Hare Capital; Wells Fargo Brokerage Services LLC</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>11/16/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>The City of New York General Obligations Bonds</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>950,465,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>2,550,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Citigroup Global Markets Inc., Bear, Stearns &amp; Co. Inc, Merrill Lynch &amp; Co., Morgan Stanley &amp; Co. Incorporated., A.G. Edwards &amp; Sons, Inc., Banc of America Securities LLC, M.R. Beal &nbsp;&amp; Company, DEPFA First Albany Securities LLC, Goldman, Sachs &amp; Co., J.P. Morgan Securities Inc., Lehman Brothers, Loop Capital Markets, Prager, Sealy &amp; Co., LLC, Ramirez &amp; Co., Inc., RBC Capital Markets, Siebert Brandford Shank &amp; Co., UBS Securities LLC, Wachovia Bank, National Association, Cabrera Capital Markets Inc., Commerce Capital Markets, Inc., Jackson Securities. LLC, Janney Montgomery Scott LLC, Popular Securities, Inc., Raymond James &amp; Associates, Roosevelt &amp; Cross, Inc., Southwest Securities, Inc.</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>11/16/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>The City of New York General Obligations Bonds</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>950,465,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>1,600,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Citigroup Global Markets Inc., Bear, Stearns &amp; Co. Inc, Merrill Lynch &amp; Co., Morgan Stanley &amp; Co. Incorporated., A.G. Edwards &amp; Sons, Inc., Banc of America Securities LLC, M.R. Beal &nbsp;&amp; Company, DEPFA First Albany Securities LLC, Goldman, Sachs &amp; Co., J.P. Morgan Securities Inc., Lehman Brothers, Loop Capital Markets, Prager, Sealy &amp; Co., LLC, Ramirez &amp; Co., Inc., RBC Capital Markets, Siebert Brandford Shank &amp; Co., UBS Securities LLC, Wachovia Bank, National Association, Cabrera Capital Markets Inc., Commerce Capital Markets, Inc., Jackson Securities. LLC, Janney Montgomery Scott LLC, Popular Securities, Inc., Raymond James &amp; Associates, Roosevelt &amp; Cross, Inc., Southwest Securities, Inc.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>11/21/2007</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>California St Public Works</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>124,180,000 </P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>10,605,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000">J.P. Morgan Securities, Great Pacific Securities, City National Securities Inc., Estrada Hinojosa &amp; Company, Fidelity Capital Markets Services, Merrill Lynch &amp; Co., RBC Capital Markets, S.B.K.-Brooks Investment Corp</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>2/8/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Met Trans Authority</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>1,000,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>10,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>J.P. Morgan Securities Inc., Lehman Brothers, UBS Investment Bank, Bear, Stearns &amp; Co. Inc., Citi, Banc of America Securities LLC, DEPFA First Albany Securities LLC, Loop Capital Markets, LLC, Merrill Lynch &amp; Co., Morgan Stanley, M.R. Beal &amp; Company, Ramirez &amp; Co., Inc., Raymond James &amp; Associates, Inc., RBC Capital Markets, Roosevelt &amp; Cross, Inc., Siebert Brandford Shank &amp; Co., LLC, Wachovia Bank, N.A.</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>3/5/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>California State</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>&nbsp;1,750,000,000 </P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>5,970,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Siebert Brandford Shank &amp; Co., LLC, E.J. De La Rosa &amp; Co., Inc, Stone &amp; Youngberg, Morgan Stanley &amp; Co. Incorporated, Banc of America Securities LLC, Bear, Stearns &amp; Co. Inc., Butler Wick &amp; Co., Inc., Cabrera Capital Markets, LLC, Citi, City National Securities, Inc., DEPFA First Albany Securities LLC, Fidelity Capital Markets Services, First Southwest Company, Goldman, Sachs &amp; Co., Great Pacific Securities, Jackson Securities, JPMorgan, Lehman Brothers, Loop Capital Markets, LLC, Merrill Lynch &amp; Co., Morgan Keegan and Co., Inc., M.R. Beal &amp; Company, Prager, Sealy &amp; Company LLC, RBC Capital Markets, Ramirez &amp; Co., Inc., Rice Financial Products Company, SL Hare Capital, Inc., Southwest Securities In
c., Toussaint Capital Partners, LLC, UBS Securities LLC, Wedbush Morgan Securities, Wells Fargo Institutional Securities, LLC</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>3/5/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>California State</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>&nbsp;1,750,000,000 </P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>1,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Siebert Brandford Shank &amp; Co., LLC, E.J. De La Rosa &amp; Co., Inc, Stone &amp; Youngberg, Morgan Stanley &amp; Co. Incorporated, Banc of America Securities LLC, Bear, Stearns &amp; Co. Inc., Butler Wick &amp; Co., Inc., Cabrera Capital Markets, LLC, Citi, City National Securities, Inc., DEPFA First Albany Securities LLC, Fidelity Capital Markets Services, First Southwest Company, Goldman, Sachs &amp; Co., Great Pacific Securities, Jackson Securities, JPMorgan, Lehman Brothers, Loop Capital Markets, LLC, Merrill Lynch &amp; Co., Morgan Keegan and Co., Inc., M.R. Beal &amp; Company, Prager, Sealy &amp; Company LLC, RBC Capital Markets, Ramirez &amp; Co., Inc., Rice Financial Products Company, SL Hare Capital, Inc., Southwest Securities In
c., Toussaint Capital Partners, LLC, UBS Securities LLC, Wedbush Morgan Securities, Wells Fargo Institutional Securities, LLC</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>3/5/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>California State</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>&nbsp;1,750,000,000 </P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>1,250,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Siebert Brandford Shank &amp; Co., LLC, E.J. De La Rosa &amp; Co., Inc, Stone &amp; Youngberg, Morgan Stanley &amp; Co. Incorporated, Banc of America Securities LLC, Bear, Stearns &amp; Co. Inc., Butler Wick &amp; Co., Inc., Cabrera Capital Markets, LLC, Citi, City National Securities, Inc., DEPFA First Albany Securities LLC, Fidelity Capital Markets Services, First Southwest Company, Goldman, Sachs &amp; Co., Great Pacific Securities, Jackson Securities, JPMorgan, Lehman Brothers, Loop Capital Markets, LLC, Merrill Lynch &amp; Co., Morgan Keegan and Co., Inc., M.R. Beal &amp; Company, Prager, Sealy &amp; Company LLC, RBC Capital Markets, Ramirez &amp; Co., Inc., Rice Financial Products Company, SL Hare Capital, Inc., Southwest Securities In
c., Toussaint Capital Partners, LLC, UBS Securities LLC, Wedbush Morgan Securities, Wells Fargo Institutional Securities, LLC</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>4/11/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>City of Clevelend, Ohio, Public Pwr Syst Rev Bond Series 08</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>93,712,880</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>2,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000">Lehman Brothers, George K Baum &amp; Co., JPMorgan, Loop Capital Markets, LLC, Merrill Lynch &amp; Co.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>5/2/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>San Diego County Water Authority</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>558,015,000 </P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>9,375,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000">Goldman, Sachs &amp; Co., Citi, Banc of America Securities LLC, Lehman Brothers, Merrill Lynch &amp; Co.</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>5/2/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>San Diego County Water Authority</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>558,015,000 </P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7,500,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000">Goldman, Sachs &amp; Co., Citi, Banc of America Securities LLC, Lehman Brothers, Merrill Lynch &amp; Co.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>5/22/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>MASSACHUSETTS ST HEALTH &amp; EDL FACS</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>373,105,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>500,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Citigroup Global Markets Inc., Morgan Stanley &amp; Co. Incorporated, Merrill Lynch &amp; Co.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>6/5/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>BROWARD CNTY FLA SCH BRD CTFS PART</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>270,560,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>15,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>J.P. Morgan Securities Inc., Banc of America Securities LLC, Citigroup Global Markets Inc., UBS Securities LLC, Merrill Lynch &amp; Co., Morgan Stanley &amp; Co. Incorporated, Raymond James &amp; Associates, Inc., Rice Financial Products Company</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>6/5/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>MIAMI-DADE CNTY FLA AVIATION REV</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>600,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>4,200,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Banc of America Securities LLC, Estrada Hinojosa &amp; Company, Inc., JPMorgan, Merrill Lynch &amp; Co., Rice Financial Products Company, Butler Wick &amp; Co., Inc., Goldman, Sachs &amp; Co., Jackson Securities, Lehman Brothers, Loop Capital Markets, LLC, M.R. Beal &amp; Co</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>6/5/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>MIAMI-DADE CNTY FLA AVIATION REV</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>600,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>15,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Banc of America Securities LLC, Estrada Hinojosa &amp; Company, Inc., JPMorgan, Merrill Lynch &amp; Co., Rice Financial Products Company, Butler Wick &amp; Co., Inc., Goldman, Sachs &amp; Co., Jackson Securities, Lehman Brothers, Loop Capital Markets, LLC, M.R. Beal &amp; Co</P>
</TD></TR>
</TABLE>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000"><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>BlackRock MuniYield Insured Fund, Inc.</B></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>FILE #811-06540</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding-left:-27pt; padding-top:0pt; padding-right:0pt; padding-bottom:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>ATTACHMENT 77O</P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<P style="margin-left:0pt; margin-top:0pt; margin-bottom:0pt; padding:0pt; text-indent:0pt; font-size:10pt; color:#000000" align=center><BR></P>
<TABLE style="margin-left:0pt"><TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-left:0.5pt solid #000000; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>TRADE DATE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>DESCRIPTION OF SECURITY</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>ISSUE SIZE</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:1pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>AMOUNT PURCHASED</B></P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border-top:0.5pt solid #000000; border-right:0.5pt solid #000000; border-bottom:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center><B>LIST OF UNDERWRITERS</B></P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/2/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>NEW YORK ST DORM AUTH REVS ST SUPP</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>516,455,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>2,700,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>JPMorgan, Lehman Brothers, Goldman, Sachs &amp; Co., Merrill Lynch, Ramirez &amp; Co., Inc., Wachovia Bank, National Association, Cain Brothers &amp; Company, LLC, DEPFA First Albany Securities LLC, Jackson Securities, Morgan Stanley, Raymond James &amp; Associates, Inc., Roosevelt &amp; Cross, Incorporated, Stearne, Agee &amp; Leach, Inc.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/31/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>TEXAS ST UNIV SYS FING REV</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>207,395,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>1,350,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Lehman Brothers, RBC Capital Markets, Estrada Hinojosa &amp; Company, Inc., &amp; Piper Jaffray &amp; Co.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/31/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>TEXAS ST UNIV SYS FING REV</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>207,395,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>9,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Lehman Brothers, RBC Capital Markets, Estrada Hinojosa &amp; Company, Inc., &amp; Piper Jaffray &amp; Co.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/31/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>TEXAS ST UNIV SYS FING REV</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>207,395,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>9,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Lehman Brothers, RBC Capital Markets, Estrada Hinojosa &amp; Company, Inc., &amp; Piper Jaffray &amp; Co.</P>
</TD></TR>
<TR><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=84.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>7/31/2008</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=206.667><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>TEXAS ST UNIV SYS FING REV</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=110.8><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>207,395,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=102.333><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>10,000,000</P>
</TD><TD style="padding-left:7.2pt; padding-top:0pt; padding-right:7.2pt; padding-bottom:0pt; border:0.5pt solid #000000" align=left valign=top width=168.867><P style="margin:0pt; padding:0pt; text-indent:0pt; line-height:10pt; font-size:10pt; color:#000000" align=center>Lehman Brothers, RBC Capital Markets, Estrada Hinojosa &amp; Company, Inc., &amp; Piper Jaffray &amp; Co.</P>
</TD></TR>
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