UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-09191 Name of Fund: BlackRock MuniHoldings Insured Fund II, Inc. Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Robert C. Doll, Jr., Chief Executive Officer, BlackRock MuniHoldings Insured Fund II, Inc., 800 Scudders Mill Road, Plainsboro, NJ, 08536. Mailing address: P.O. Box 9011, Princeton, NJ, 08543-9011 Registrant's telephone number, including area code: (800) 882-0052 Date of fiscal year end: 09/30/2007 Date of reporting period: 04/01/07 - 06/30/07 Item 1 - Schedule of Investments BlackRock MuniHoldings Insured Fund II, Inc. Schedule of Investments as of June 30, 2007 (Unaudited) (In Thousands) Face State Amount Municipal Bonds Value Alabama - 3.0% $ 3,581 Jefferson County, Alabama, Limited Obligation School Warrants, Series A, 5.50% due 1/01/2022 $ 3,817 5,000 Mobile, Alabama, GO, Refunding, 5.25% due 8/15/2020 (a) 5,253 Alaska - 1.3% 2,000 Anchorage, Alaska, Water Revenue Refunding Bonds, 6% due 9/01/2024 (a) 2,099 1,700 Matanuska-Susitna Boro, Alaska, GO, Series A, 6% due 3/01/2010 (i)(j) 1,788 California - 25.3% 2,100 California State, GO, 5.50% due 4/01/2014 (j) 2,289 2,935 California State, Various Purpose, GO, 5.25% due 12/01/2022 (f) 3,100 9,350 California State, Veterans, GO, Refunding, AMT, Series BZ, 5.35% due 12/01/2021 (i) 9,373 2,405 Dixon, California, Unified School District, GO (Election of 2002), 5.20% due 8/01/2044 (f) 2,477 2,185 East Side Union High School District, California, Santa Clara County, GO (Election of 2002), Series D, 5% due 8/01/2020 (n) 2,297 8,460 East Side Union High School District, California, Santa Clara County, GO (Election of 2002), Series D, 5% due 8/01/2029 (n) 8,761 4,240 Modesto, California, Schools Infrastructure Financing Agency, Special Tax Bonds, 5.50% 4,519 due 9/01/2036 (a) 5,000 Port of Oakland, California, Revenue Refunding Bonds, AMT, Series L, 5.375% due 11/01/2027 (c) 5,217 2,985 Roseville, California, Joint Union High School District, GO (Election of 2004), Series A, 5% due 8/01/2029 (c) 3,080 150 Sacramento, California, City Financing Authority, Capital Improvement Revenue Bonds, 5% due 12/01/2027 (a) 154 1,480 San Diego, California, Community College District, GO (Election of 2002), 5% due 5/01/2030 (f) 1,530 1,250 San Francisco, California, City and County Airport Commission, International Airport, Special Facilities Lease Revenue Bonds (SFO Fuel Company LLC), AMT, Series A, 6.10% due 1/01/2020 (f) 1,287 5,075 San Francisco, California, City and County, GO (California Academy of Sciences Improvements), Series E, 5% due 6/15/2022 (i) 5,262 3,800 San Jose, California, GO (Libraries, Parks and Public Safety Projects), 5% due 9/01/2030 (i) 3,911 5,190 Sequoia, California, Unified High School District, GO, Refunding, Series B, 5.50% due 7/01/2035 (f) 5,659 Portfolio Abbreviations To simplify the listings of BlackRock MuniHoldings Insured Fund II, Inc.'s portfolio holdings in the Schedule of Investments, we have abbreviated the names of many the securities according to the list below. AMT Alternative Minimum Tax (subject to) COP Certificates of Participation EDA Economic Development Authority GO General Obligation Bonds HDA Housing Development Authority HFA Housing Finance Agency M/F Multi-Family PCR Pollution Control Revenue Bonds S/F Single-Family VRDN Variable Rate Demand Notes BlackRock MuniHoldings Insured Fund II, Inc. Schedule of Investments as of June 30, 2007 (Unaudited) (concluded) (In Thousands) Face State Amount Municipal Bonds Value California $ 4,485 Stockton, California, Public Financing Revenue Bonds (Redevelopment (concluded) Projects), Series A, 5.25% due 9/01/2031 (k) $ 4,667 2,930 Stockton, California, Public Financing Revenue Bonds (Redevelopment Projects), Series A, 5.25% due 9/01/2034 (k) 3,044 2,915 Tustin, California, Unified School District, Senior Lien Special Tax Bonds (Community Facilities District Number 97-1), Series A, 5% due 9/01/2032 (f) 2,971 4,620 Tustin, California, Unified School District, Senior Lien Special Tax Bonds (Community Facilities District Number 97-1), Series A, 5% due 9/01/2038 (f) 4,704 3,000 University of California Revenue Bonds (Multiple Purpose Projects), Series Q, 5% due 9/01/2022 (f) 3,090 Colorado - 3.6% 6,285 Aurora, Colorado, COP, 5.75% due 12/01/2010 (a)(j) 6,637 240 Colorado HFA, Revenue Refunding Bonds (S/F Program), AMT, Senior Series A-2, 7.50% due 4/01/2031 241 4,000 Colorado Health Facilities Authority, Hospital Revenue Refunding Bonds (Poudre Valley Health Care), Series A, 5.75% due 12/01/2009 (f)(j) 4,206 Connecticut - 0.5% 1,520 Connecticut State, GO, Refunding, Series D, 5% due 12/01/2024 (i) 1,580 District of 2,500 District of Columbia, Deed Tax Revenue Bonds (Housing Production Trust Columbia - 0.8% Fund - New Communities Project), Series A, 5% due 6/01/2032 (i) 2,571 Florida - 16.3% 2,200 Florida Housing Finance Corporation, Homeowner Mortgage Revenue Bonds, AMT, Series 2, 4.80% due 7/01/2032 (e)(p) 2,122 3,385 Hillsborough County, Florida, HFA, S/F Mortgage Revenue Bonds, AMT, Series 1, 5.375% due 10/01/2049 (e)(p) 3,530 5,400 Jacksonville, Florida, Health Facilities Authority, Hospital Revenue Bonds (Baptist Medical Center Project), 5% due 8/15/2037 (f) 5,538 2,340 Jacksonville, Florida, Health Facilities Authority, Hospital Revenue Bonds (Baptist Medical Center Project), Series A, 5% due 8/15/2037 2,342 1,760 Lee Memorial Health System, Florida, Hospital Revenue Bonds, Series A, 5% due 4/01/2032 1,765 5,000 Lee Memorial Health System, Florida, Hospital Revenue Bonds, Series A, 5% due 4/01/2032 (a) 5,142 3,140 Miami-Dade County, Florida, Aviation Revenue Refunding Bonds (Miami International Airport), AMT, Series A, 5% due 10/01/2040 (n) 3,169 3,670 Miami-Dade County, Florida, Subordinate Special Obligation Revenue Bonds, Series A, 5.24% due 10/01/2037 (i)(g) 779 8,100 Okaloosa County, Florida, Water and Sewer Revenue Refunding Bonds, 5% due 7/01/2036 (f) 8,337 2,425 Orange County, Florida, School Board, COP, Series A, 5% due 8/01/2032 (c) 2,491 6,300 Pasco County, Florida, Half-Cent Sales Tax Revenue Bonds, 5.125% due 12/01/2028 (a) 6,510 3,725 South Florida Water Management District, COP, 5% due 10/01/2036 (a) 3,825 4,200 University of North Florida Financing Corporation, Capital Improvement Revenue Bonds (Housing Project), 5% due 11/01/2037 (c) 4,316 Georgia - 2.2% 6,290 Augusta, Georgia, Water and Sewer Revenue Bonds, 5.25% due 10/01/2034 (f) 6,615 Idaho - 0.1% 440 Idaho Housing and Finance Association, S/F Mortgage Revenue Bonds, AMT, Series E, 6% due 1/01/2032 447 Illinois - 7.1% 2,185 Chicago, Illinois, GO (Neighborhoods Alive 21 Program), Series A, 6% due 7/01/2010 (c)(j) 2,331 18,130 Chicago, Illinois, GO, Series A, 6% due 7/01/2010 (c)(j) 19,340 125 Lake, Cook, Kane and McHenry Counties, Illinois, Community Unit School District Number 220, GO, 6% due 12/01/2020 (c) 133 Indiana - 3.1% 9,280 Shelbyville, Indiana, Elementary School Building Corporation Revenue Bonds, First Mortgage, 5.75% due 1/15/2009 (f)(j) 9,629 Kansas - 2.1% 3,510 Kansas State Development Finance Authority, Health Facilities Revenue Bonds (Sisters of Charity Leavenworth), Series J, 6.125% due 12/01/2020 3,719 2,805 Sedgwick and Shawnee Counties, Kansas, S/F Mortgage Revenue Bonds, AMT, Series A-2, 6.20% due 12/01/2033 (e) 2,820 Louisiana - 2.7% 8,000 Louisiana State, Gas and Fuels Tax Revenue Bonds, Series A, 5% due 5/01/2041 (c) 8,212 Massachusetts - 4.1% 5,535 Massachusetts Bay Transportation Authority, Sales Tax Revenue Refunding Bonds, Senior Series A, 5% due 7/01/2035 5,645 2,000 Massachusetts State Development Finance Agency, Education Revenue Bonds (Belmont Hill School), 4.50% due 9/01/2036 1,861 5,000 Massachusetts State School Building Authority, Dedicated Sales Tax Revenue Bonds, Series A, 5% due 8/15/2030 (f) 5,179 Michigan - 0.3% 1,000 Michigan State Hospital Finance Authority, Revenue Refunding Bonds (Mercy-Mount Clemens), Series A, 6% due 5/15/2014 (i) 1,043 Minnesota - 4.4% 2,555 Prior Lake, Minnesota, Independent School District Number 719, GO, 5.50% due 2/01/2016 (f) 2,647 1,830 Prior Lake, Minnesota, Independent School District Number 719, GO, 5.50% due 2/01/2017 (f) 1,896 3,570 Prior Lake, Minnesota, Independent School District Number 719, GO, 5.50% due 2/01/2018 (f) 3,699 2,840 Prior Lake, Minnesota, Independent School District Number 719, GO, 5.50% due 2/01/2019 (f) 2,942 2,185 Sauk Rapids, Minnesota, Independent School District Number 47, GO, Series A, 5.625% due 2/01/2018 (i) 2,297 Nebraska - 1.9% 5,395 Omaha Convention Hotel Corporation, Nebraska, Convention Center Revenue Bonds, First Tier, Series A, 5.50% due 4/01/2012 (a)(j) 5,742 Nevada - 1.6% 120 Nevada Housing Division, S/F Mortgage Revenue Bonds, AMT, Series A-2, 6.30% due 4/01/2022 (i) 121 4,445 Truckee Meadows, Nevada, Water Authority, Water Revenue Bonds, Series A, 5.50% 4,696 due 7/01/2011 (f)(j) New Jersey - 16.9% 2,980 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.625% due 6/15/2018 3,054 8,590 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.75% due 6/15/2029 9,143 6,200 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.75% due 6/15/2034 (b) 6,810 11,000 New Jersey EDA, Motor Vehicle Surcharge Revenue Bonds, Series A, 5.25% due 7/01/2033 (i) 11,586 4,220 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue Bonds, Series D, 5% due 6/15/2018 (a) 4,430 12,950 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue Bonds, Series D, 5% due 6/15/2020 (f) 13,502 3,000 New Jersey State Turnpike Authority, Turnpike Revenue Bonds, Series C, 5% due 1/01/2030 (f) 3,104 New Mexico - 3.6% 5,000 Farmington, New Mexico, PCR, Refunding (Public Service Company of New Mexico - San Juan Project), Series C, 5.70% due 12/01/2016 (a) 5,107 5,480 New Mexico Finance Authority, Senior Lien State Transportation Revenue Bonds, Series A, 5.125% due 6/15/2018 (i) 5,787 New York - 13.2% 14,000 Nassau Health Care Corporation, New York, Health System Revenue Bonds, 5.75% due 8/01/2009 (f)(j) 14,810 5,000 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds, Series A, 5% due 10/15/2020 (i) 5,233 3,200 New York State Dormitory Authority, Non-State Supported Debt Revenue Bonds (New York University), Series A, 5% due 7/01/2032 (a) 3,330 5,755 New York State Dormitory Authority Revenue Bonds (School Districts Financing Program), Series D, 5.25% due 10/01/2023 (i) 6,059 2,000 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series A-1, 5.25% due 6/01/2021 (a) 2,105 7,850 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1, 5.50% due 6/01/2017 8,238 500 Triborough Bridge and Tunnel Authority, New York, General Purpose Revenue Refunding Bonds, VRDN, Series C, 3.69% due 1/01/2032 (a)(l) 500 North Carolina - 0.4% 1,305 North Carolina HFA, Home Ownership Revenue Bonds, AMT, Series 14-A, 5.35% due 1/01/2022 (a) 1,324 Ohio - 1.0% 1,745 Aurora, Ohio, City School District, COP, 6.10% due 12/01/2009 (i)(j) 1,851 1,000 Kent State University, Ohio, University Revenue Bonds, 6% due 5/01/2024 (a) 1,061 Oklahoma - 0.8% 2,385 Claremore, Oklahoma, Public Works Authority, Capital Improvement Revenue Refunding Bonds, Series A, 5.25% due 6/01/2027 (f) 2,527 Pennsylvania - 6.6% 6,435 Pennsylvania State Higher Educational Facilities Authority, State System of Higher Education Revenue Bonds, Series O, 5.125% due 6/15/2024 (a) 6,440 4,290 Pittsburgh, Pennsylvania, GO, Series C, 5.25% due 9/01/2017 (f) 4,615 6,415 Pittsburgh, Pennsylvania, GO, Series C, 5.25% due 9/01/2018 (f) 6,889 2,090 Washington County, Pennsylvania, Capital Funding Authority Revenue Bonds (Capital Projects and Equipment Program), 6.15% due 12/01/2029 (a) 2,244 Rhode Island - 3.6% 5,555 Providence, Rhode Island, Redevelopment Agency Revenue Refunding Bonds (Public Safety and Municipal Buildings), Series A, 5.75% due 4/01/2010 (a)(j) 5,865 4,685 Rhode Island State Health and Educational Building Corporation Revenue Bonds (Rhode Island School of Design), Series D, 5.50% due 8/15/2031 (n) 5,009 South Carolina - 0.6% 1,755 South Carolina Housing Finance and Development Authority, Mortgage Revenue Refunding Bonds, AMT, Series A-2, 6.35% due 7/01/2019 (f) 1,807 Tennessee - 1.6% 3,500 Metropolitan Government of Nashville and Davidson County, Tennessee, Health and Education Facilities Board Revenue Refunding Bonds (Ascension Health Credit), Series A, 5.875% due 11/15/2009 (a)(j) 3,685 1,080 Tennessee HDA, Revenue Bonds (Homeownership Program), AMT, Series 2C, 6% due 7/01/2011 1,103 110 Tennessee HDA, Revenue Refunding Bonds (Homeownership Program), AMT, Series 1, 6.05% due 7/01/2014 (i) 110 Texas - 9.7% 1,750 Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises, Inc.), Trust Certificates, Second Tier, Series B, 6% due 1/01/2011 (j) 1,863 1,835 Dallas-Fort Worth, Texas, International Airport Revenue Refunding and Improvement Bonds, AMT, Series A, 5.875% due 11/01/2017 (c) 1,941 2,150 Dallas-Fort Worth, Texas, International Airport Revenue Refunding and Improvement Bonds, AMT, Series A, 5.875% due 11/01/2018 (c) 2,275 2,390 Dallas-Fort Worth, Texas, International Airport Revenue Refunding and Improvement Bonds, AMT, Series A, 5.875% due 11/01/2019 (c) 2,529 8,630 Dallas, Texas, Area Rapid Transit, Senior Lien Revenue Refunding Bonds, 5% due 12/01/2036 (a) 8,885 115 El Paso, Texas, Water and Sewer Revenue Refunding and Improvement Bonds, Series A, 6% due 3/01/2015 (f) 125 170 El Paso, Texas, Water and Sewer Revenue Refunding and Improvement Bonds, Series A, 6% due 3/01/2016 (f) 184 180 El Paso, Texas, Water and Sewer Revenue Refunding and Improvement Bonds, Series A, 6% due 3/01/2017 (f) 194 4,885 Houston, Texas, Combined Utility System, First Lien Revenue Refunding Bonds, Series B, 5% due 11/15/2031 (c) 5,040 4,528 Houston, Texas, Community College System, Participation Interests, COP (Alief Center Project), 5.75% due 8/15/2022 (i) 4,676 1,850 Midland, Texas, Certificates of Obligation, GO, 6.10% due 3/01/2010 (c)(j) 1,950 Utah - 0.2% 610 Weber County, Utah, Municipal Building Authority, Lease Revenue Refunding Bonds, 5.75% due 12/15/2007 (i)(j) 621 Washington - 7.0% 6,885 Bellevue, Washington, GO, Refunding, 5.50% due 12/01/2039 (i) 7,423 3,840 Chelan County, Washington, Public Utility District Number 001, Consolidated Revenue Bonds (Chelan Hydro System), AMT, Series A, 5.45% due 7/01/2037 (a) 3,978 1,805 Lewis County, Washington, GO, Refunding, 5.75% due 12/01/2009 (a)(j) 1,883 1,640 Lewis County, Washington, GO, Refunding, 5.75% due 12/01/2024 (a) 1,704 2,500 Seattle, Washington, Municipal Light and Power Revenue Bonds, 6% due 10/01/2009 (i)(j) 2,637 3,500 Seattle, Washington, Water System Revenue Bonds, Series B, 6% due 7/01/2009 (c)(j) 3,676 West Virginia - 2.1% 6,210 West Virginia State Housing Development Fund, Housing Finance Revenue Refunding Bonds, Series D, 5.20% due 11/01/2021 (i) 6,337 Wisconsin - 0.4% 1,250 Wisconsin State Health and Educational Facilities Authority Revenue Bonds (Blood Center of Southeastern Wisconsin Project), 5.75% due 6/01/2034 1,323 Puerto Rico - 2.8% 6,225 Puerto Rico Commonwealth, Public Improvement, GO, 5.125% due 7/01/2030 (f) 6,427 1,010 Puerto Rico Commonwealth, Public Improvement, GO, Refunding, Series B, 5.25% due 7/01/2032 1,053 1,200 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series TT, 5% due 7/01/2037 1,227 Total Municipal Bonds (Cost - $451,859) - 150.9% 461,743 Municipal Bonds Held in Trust (m) Arkansas - 4.1% 12,210 Arkansas State Development Finance Authority, M/F Mortgage Revenue Refunding Bonds, Series C, 5.35% due 12/01/2035 (d)(i) 12,524 California - 4.7% 10,710 California Pollution Control Financing Authority, PCR, Refunding (Pacific Gas and Electric), AMT, Series A, 5.35% due 12/01/2016 (i) 11,277 3,000 Port of Oakland, California, Revenue Bonds, AMT, Series K, 5.75% due 11/01/2021 (c) 3,125 Florida - 2.8% 8,400 Miami-Dade County, Florida, Aviation Revenue Refunding Bonds (Miami International Airport), AMT, Series A, 5% due 10/01/2040 (n) 8,477 Illinois - 2.6% 7,300 Chicago, Illinois, O'Hare International Airport Revenue Bonds, Third Lien, AMT, Series B-2, 6% due 1/01/2029 (n) 8,024 Michigan - 3.4% 2,000 Michigan State Strategic Fund, Limited Obligation Revenue Refunding Bonds (Detroit Edison Company Pollution Control Project), AMT, Series A, 5.50% due 6/01/2030 (n) 2,112 5,000 Michigan State Strategic Fund, Limited Obligation Revenue Refunding Bonds (Detroit Edison Company Pollution Control Project), AMT, Series C, 5.65% due 9/01/2029 (n) 5,231 3,000 Saint Clair County, Michigan, Economic Revenue Refunding Bonds (Detroit Edison Co. Project), Series AA, 6.40% due 8/01/2024 (a) 3,133 New York - 2.3% 6,750 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds, Series A, 5.25% due 10/15/2027 (a) 7,173 Texas - 5.5% 16,000 Dallas-Fort Worth, Texas, International Airport Revenue Bonds, AMT, Series A, 5.50% due 11/01/2033 (i) 16,846 Total Municipal Bonds Held in Trust (Cost - $77,093) - 25.4% 77,922 Shares Held Short-Term Securities 10,889 Merrill Lynch Institutional Tax-Exempt Fund, 3.59% (h)(o) 10,889 Total Short-Term Securities (Cost - $10,889) - 3.6% 10,889 Total Investments (Cost - $539,841*) - 179.9% 550,554 Liabilities in Excess of Other Assets - (0.8%) (2,470) Liability for Trust Certificates, Including Interest Expense Payable - (12.2%) (37,452) Preferred Stock, at Redemption Value - (66.9%) (204,666) ------------- Net Assets - 100.0% $ 305,966 ============= * The cost and unrealized appreciation (depreciation) of investments as of June 30, 2007, as computed for federal income tax purposes, were as follows: Aggregate cost $ 504,566 =============== Gross unrealized appreciation $ 10,996 Gross unrealized depreciation (2,193) --------------- Net unrealized appreciation $ 8,803 =============== (a) AMBAC Insured. (b) Assured Guaranty Insured. (c) FGIC Insured. (d) FHA Insured. (e) FNMA/GNMA Collateralized. (f) FSA Insured. (g) Represents a zero coupon bond; the interest rate shown reflects the effective yield at the time of purchase. (h) Investments in companies considered to be an affiliate of the Fund, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: Net Dividend Affiliate Activity Income Merrill Lynch Institutional Tax-Exempt Fund 6,273 $268 (i) MBIA Insured. (j) Prerefunded. (k) Radian Insured. (l) Security may have a maturity of more than one year at time of issuance, but has variable rate and demand features that qualify it as a short-term security. The rate disclosed is that currently in effect. This rate changes periodically based upon prevailing market rates. (m) Securities represent underlying bonds transferred to a separate securitization trust established in a tender option bond transaction in which the fund may have acquired the residual interest certificates. These securities serve as collateral in a financing transaction. (n) XL Capital Insured. (o) Represents the current yield as of June 30, 2007. (p) FHLMC Collateralized. Item 2 - Controls and Procedures 2(a) - The registrant's principal executive and principal financial officers or persons performing similar functions have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act")) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13a-15(b) under the Securities and Exchange Act of 1934, as amended. 2(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 3 - Exhibits Certifications - Attached hereto Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. BlackRock MuniHoldings Insured Fund II, Inc. By: /s/ Robert C. Doll, Jr. ----------------------- Robert C. Doll, Jr., Chief Executive Officer of BlackRock MuniHoldings Insured Fund II, Inc. Date: August 20, 2007 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By: /s/ Robert C. Doll, Jr. ----------------------- Robert C. Doll, Jr., Chief Executive Officer of BlackRock MuniHoldings Insured Fund II, Inc. Date: August 20, 2007 By: /s/ Donald C. Burke ------------------- Donald C. Burke, Chief Financial Officer of BlackRock MuniHoldings Insured Fund II, Inc. Date: August 20, 2007