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 811-21348
Name of Fund: BlackRock Muni Intermediate Duration Fund, 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 Muni Intermediate Duration Fund, 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: 05/31/2008
Date of reporting period: 06/01/2007 - 08/31/2007
Item 1 - Schedule of Investments
BlackRock Muni Intermediate Duration Fund, Inc.
Schedule of Investments as of August 31, 2007 (Unaudited) (in Thousands)
Face
State Amount Municipal Bonds Value
Alabama - 3.4% $ 5,500 Jefferson County, Alabama, Limited Obligation School Warrants, Series A,
5.50% due 1/01/2021 $ 5,825
6,500 Jefferson County, Alabama, Limited Obligation School Warrants, Series A,
5.25% due 1/01/2023 6,740
6,600 Tuscaloosa, Alabama, Special Care Facilities Financing Authority, Residential
Care Facility Revenue Bonds (Capstone Village, Inc. Project), Series A,
5.625% due 8/01/2025 6,323
Arizona - 2.2% 2,820 Maricopa County, Arizona, IDA, Education Revenue Bonds (Arizona Charter
Schools Project 1), Series A, 6.625% due 7/01/2020 2,754
3,000 Navajo County, Arizona, IDA, IDR (Stone Container Corporation Project), AMT,
7.20% due 6/01/2027 3,047
990 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools
Project), Series C, 6.70% due 7/01/2021 1,027
820 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools
Project), Series K, 6.375% due 7/01/2013 (i) 924
930 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools
Project), Series K, 6.375% due 7/01/2032 956
3,630 Vistancia Community Facilities District, Arizona, GO, 5% due 7/15/2014 3,659
Arkansas - 0.7% 3,755 Conway, Arkansas, Public Facilities Board, Capital Improvement Revenue
Refunding Bonds (Hendrix College Projects), Series B, 5% due 10/01/2026 3,760
California - 20.9% 8,000 Antelope Valley, California, Health Care District Revenue Bonds, VRDN,
Series A, 5.25% due 9/01/2017 8,111
2,900 California HFA, Home Mortgage Revenue Bonds, VRDN, AMT, Series R, 3.96%
due 8/01/2032 (a)(k) 2,900
750 California Pollution Control Financing Authority, Solid Waste Disposal Revenue
Bonds (Republic Services Inc. Project), AMT, Series B, 5.25% due 6/01/2023 764
1,240 California Pollution Control Financing Authority, Solid Waste Disposal Revenue
Bonds (Waste Management Inc. Project), AMT, Series A-2, 5.40% due 4/01/2025 1,200
5,000 California State Department of Water Resources, Power Supply Revenue Bonds,
Series A, 5.375% due 5/01/2012 (i) 5,414
15,575 California State, GO, 5.50% due 4/01/2014 (i) 17,123
15 California State, GO, 5.50% due 4/01/2028 16
5,000 California State, GO, Refunding, 5.25% due 2/01/2027 (h) 5,198
10,000 California State Public Works Board, Lease Revenue Bonds (Department of
Corrections), Series C, 5.50% due 6/01/2020 10,634
2,500 California Statewide Communities Development Authority, Health Facility
Revenue Bonds (Memorial Health Services), Series A, 6% due 10/01/2023 2,638
Portfolio Abbreviations
To simplify the listings of BlackRock Muni Intermediate Duration Fund, Inc.'s
portfolio holdings in the Schedule of Investments, we have abbreviated
the names of many of the securities according to the list below.
AMT Alternative Minimum Tax (subject to)
COP Certificates of Participation
EDA Economic Development Authority
EDR Economic Development Revenue Bonds
GO General Obligation Bonds
HFA Housing Finance Agency
IDA Industrial Development Authority
IDB Industrial Development Board
IDR Industrial Development Revenue Bonds
PCR Pollution Control Revenue Bonds
S/F Single-Family
VRDN Variable Rate Demand Notes
BlackRock Muni Intermediate Duration Fund, Inc.
Schedule of Investments as of August 31, 2007 (Unaudited) (concluded) (in Thousands)
Face
State Amount Municipal Bonds Value
California $ 2,400 Elk Grove, California, Poppy Ridge Community Facilities Number 3 Special Tax,
(concluded) Series 1, 6% due 9/01/2008 (i) $ 2,472
5,000 Golden State Tobacco Securitization Corporation of California, Tobacco Settlement
Revenue Refunding Bonds, Senior Series A-1, 5% due 6/01/2015 5,006
9,000 Golden State Tobacco Securitization Corporation of California, Tobacco Settlement
Revenue Refunding Bonds, Senior Series A-1, 5.75% due 6/01/2047 8,739
1,435 Los Angeles, California, Regional Airports Improvement Corporation, Facilities
Lease Revenue Refunding Bonds (LAXFUEL Corporation - Los Angeles International
Airport), AMT, 5.50% due 1/01/2032 (a) 1,465
10,135 Peralta, California, Community College District, GO (Election of 2000), Series D,
5% due 8/01/2030 (g) 10,428
1,515 Rowland, California, Unified School District, GO (Election of 2000), Series B,
5.25% due 8/01/2027 (g) 1,576
585 Sacramento, California, Special Tax (North Natomas Community Facilities),
Series 4-C, 5.60% due 9/01/2020 601
1,720 Sacramento, California, Special Tax (North Natomas Community Facilities),
Series 4-C, 5.75% due 9/01/2022 1,772
500 Sacramento, California, Special Tax (North Natomas Community Facilities),
Series 4-C, 5.90% due 9/01/2023 518
3,000 Sacramento, California, Special Tax (North Natomas Community Facilities),
Series 4-C, 6% due 9/01/2028 3,091
3,000 San Jose, California, Airport Revenue Bonds, Series A, 5.25% due 3/01/2017 (c) 3,137
3,100 San Jose, California, GO (Libraries, Parks and Public Safety Projects),
5% due 9/01/2030 (h) 3,176
9,030 Sequoia, California, Unified High School District, GO, Refunding, Series B,
5.50% due 7/01/2035 (g) 9,716
4,000 Southern California HFA, S/F Mortgage Revenue Bonds, AMT, Series A,
5.80% due 12/01/2049 (e)(f) 4,238
4,875 Tamalpais, California, Union High School District, GO (Election of 2001),
5% due 8/01/2028 (g) 4,955
2,610 Tustin, California, Unified School District, Senior Lien Special Tax Bonds
(Community Facilities District Number 97-1), Series A, 5% due 9/01/2032 (g) 2,647
Colorado - 2.2% 700 Elk Valley, Colorado, Public Improvement Revenue Bonds (Public Improvement Fee),
Series A, 7.10% due 9/01/2014 735
2,250 Montrose, Colorado, Memorial Hospital, Revenue Bonds, 6.375% due 12/01/2023 2,387
7,500 Plaza Metropolitan District Number 1, Colorado, Tax Allocation Revenue Bonds
(Public Improvement Fees), 7.50% due 12/01/2015 8,050
1,000 Southlands Metropolitan District Number 1, Colorado, GO, 6.75% due 12/01/2014 (i) 1,136
Connecticut - 1.7% 1,160 Connecticut State Development Authority, Airport Facility Revenue Bonds
(Learjet Inc. Project), AMT, 7.95% due 4/01/2026 1,345
8,000 Connecticut State Development Authority, PCR, Refunding (Connecticut Light
and Power Company), Series A, 5.85% due 9/01/2028 8,233
Florida - 5.0% 2,900 Harbor Bay, Florida, Community Development District, Capital Improvement
Special Assessment Bonds, 6.75% due 5/01/2034 3,068
1,000 Highlands County, Florida, Health Facilities Authority, Hospital Revenue
Refunding Bonds (Adventist Health System), Series G, 5.125% due 11/15/2032 983
5,500 Miami-Dade County, Florida, Aviation Revenue Refunding Bonds
(Miami International Airport), AMT, 5.75% due 10/01/2019 (c) 5,842
3,500 Midtown Miami, Florida, Community Development District, Special Assessment
Revenue Bonds, Series A, 6% due 5/01/2024 3,463
2,000 Midtown Miami, Florida, Community Development District, Special Assessment
Revenue Bonds, Series B, 6.50% due 5/01/2037 2,023
3,670 Orange County, Florida, Health Facilities Authority, Health Care Revenue
Refunding Bonds (Orlando Lutheran Towers), 5% due 7/01/2013 3,590
875 Orlando, Florida, Urban Community Development District, Capital Improvement
Special Assessment Bonds, 6% due 5/01/2020 904
1,085 Portofino Shores, Florida, Community Development District, Special Assessment
Bonds, Series A, 6.40% due 5/01/2034 1,120
2,390 South Lake County, Florida, Hospital District Revenue Bonds (South Lake
Hospital Inc.), 6.625% due 10/01/2023 2,541
305 Sterling Hill, Florida, Community Development District, Capital Improvement
Revenue Refunding Bonds, Series B, 5.50% due 11/01/2010 305
4,000 University of Florida Research Foundation Inc., Capital Improvement Revenue
Bonds, 5.125% due 9/01/2033 (a) 4,025
Georgia - 2.2% 1,500 Atlanta, Georgia, Tax Allocation Bonds (Atlantic Station Project),
7.90% due 12/01/2011 (i) 1,741
5,395 Brunswick and Glynn County, Georgia, Development Authority, First Mortgage
Revenue Bonds (Coastal Community Retirement Corporation Project), Series A,
7.125% due 1/01/2025 4,144
2,800 Brunswick and Glynn County, Georgia, Development Authority, First Mortgage
Revenue Bonds (Coastal Community Retirement Corporation Project), Series A,
7.25% due 1/01/2035 2,134
4,500 Fulton County, Georgia, Residential Care Facilities, Revenue Refunding Bonds
(Canterbury Court Project), Series A, 5.80% due 2/15/2018 4,511
Idaho - 0.8% 4,000 Boise City, Idaho, COP, AMT, 5.50% due 9/01/2025 (c) 4,130
335 Idaho Housing and Finance Association, S/F Mortgage Revenue Bonds, AMT,
Series F-2, 5.85% due 7/01/2015 (d)(n) 340
Illinois - 7.5% 2,510 Chicago, Illinois, O'Hare International Airport Revenue Bonds, Third Lien, AMT,
Series B-2, 6% due 1/01/2029 (m) 2,690
8,650 Du Page and Will Counties, Illinois, Community School District Number 204
(Indian Prairie), GO, 5.25% due 12/30/2022 (c)(j) 9,210
6,000 Hodgkins, Illinois, Environmental Improvement Revenue Bonds (Metro Biosolids
Management LLC Project), AMT, 5.90% due 11/01/2017 6,121
6,930 Illinois, Development Finance Authority Revenue Bonds (Community Rehabilitation
Providers Facilities), Series A, 6.625% due 7/01/2032 7,290
1,800 Illinois State Finance Authority Revenue Bonds (Landing At Plymouth Place
Project), Series A, 6% due 5/15/2025 1,822
12,695 McHenry County, Illinois, Conservation District, GO, 5.125% due 2/01/2027 (g) 13,142
1,580 Village of Wheeling, Illinois, Revenue Bonds (North Milwaukee/Lake-Cook Tax
Increment Financing (TIF) Redevelopment Project), 6% due 1/01/2025 1,542
Indiana - 0.8% 4,300 Indiana Transportation Finance Authority, Highway Revenue Bonds, Series A,
5% due 6/01/2013 (g)(i) 4,564
Louisiana - 2.6% 2,000 Louisiana Public Facilities Authority Revenue Bonds (Nineteenth Judicial
District Court Building Project), 5.50% due 6/01/2041 (c) 2,114
6,965 Louisiana Public Facilities Authority Revenue Bonds (University of New Orleans
Research and Technology Foundation, Inc. - Student Housing Project),
5.25% due 3/01/2026 (h) 7,296
5,000 Port New Orleans, Louisiana, IDR, Refunding (Continental Grain Company Project),
6.50% due 1/01/2017 5,041
Maine - 0.4% 1,965 Portland, Maine, Housing Development Corporation, Senior Living Revenue Bonds
(Avesta Housing Development Corporation Project), Series A, 6% due 2/01/2034 2,008
Maryland - 0.1% 500 Maryland State Industrial Development Financing Authority, EDR
(Our Lady of Good Counsel School), Series A, 6% due 5/01/2035 508
Massachusetts - 3.0% 4,560 Massachusetts Bay Transportation Authority, Sales Tax Revenue Refunding Bonds,
Senior Series A, 5% due 7/01/2012 (i) 4,824
1,210 Massachusetts State Development Finance Agency, Resource Recovery Revenue Bonds
(Ogden Haverhill Associates), AMT, Series B, 5.35% due 12/01/2015 1,223
2,000 Massachusetts State Development Finance Agency, Resource Recovery Revenue Bonds
(Ogden Haverhill Associates), AMT, Series B, 5.50% due 12/01/2019 2,032
8,325 Massachusetts State School Building Authority, Dedicated Sales Tax Revenue
Bonds, Series A, 5% due 8/15/2030 (g) 8,539
Michigan - 1.3% 2,325 Macomb County, Michigan, Hospital Finance Authority, Hospital Revenue Bonds
(Mount Clemens General Hospital), Series B, 5.875% due 11/15/2034 2,250
4,795 Michigan State Hospital Finance Authority, Revenue Refunding Bonds
(Oakwood Obligated Group), Series A, 6% due 4/01/2022 5,059
Minnesota - 1.0% 1,000 Minneapolis and Saint Paul, Minnesota, Housing and Redevelopment Authority,
Health Care System Revenue Bonds (Group Health Plan Inc. Project),
6% due 12/01/2019 1,043
2,545 Minneapolis and Saint Paul, Minnesota, Housing and Redevelopment Authority,
Health Care System Revenue Bonds (Group Health Plan Inc. Project),
6% due 12/01/2021 2,644
2,000 Minnesota State Municipal Power Agency, Electric Revenue Bonds, Series A,
5.25% due 10/01/2024 2,064
Mississippi - 1.4% 5,000 Mississippi Business Finance Corporation, Mississippi, PCR, Refunding
(System Energy Resources Inc. Project), 5.875% due 4/01/2022 5,049
2,910 Mississippi Business Finance Corporation, Mississippi, PCR, Refunding
(System Energy Resources Inc. Project), 5.90% due 5/01/2022 2,938
Nebraska - 1.8% 10,000 Public Power Generation Agency, Nebraska, Revenue Bonds
(Whelan Energy Center Unit 2), Series A, 5% due 1/01/2037 (a) 10,194
Nevada - 0.4% 2,230 Clark County, Nevada, Improvement District Number 142, Special Assessment
Bonds, 6.375% due 8/01/2023 2,302
New Jersey - 11.7% 3,635 Garden State Preservation Trust of New Jersey, Open Space and Farmland
Preservation Revenue Bonds, Series A, 5.80% due 11/01/2021 (g) 4,055
5,050 Garden State Preservation Trust of New Jersey, Open Space and Farmland
Preservation Revenue Bonds, Series A, 5.80% due 11/01/2023 (g) 5,619
9,810 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.75% due 6/15/2029 10,160
17,900 New Jersey EDA, Motor Vehicle Surcharge Revenue Bonds, Series A,
5.25% due 7/01/2033 (h) 18,649
5,540 New Jersey EDA, Special Facility Revenue Bonds (Continental Airlines Inc.
Project), AMT, 6.625% due 9/15/2012 5,675
5,000 New Jersey EDA, Water Facilities Revenue Refunding Bonds (American Water), AMT,
Series B, 5.125% due 4/01/2022 (a) 5,135
4,215 New Jersey State Transportation Trust Fund Authority, Transportation System
Revenue Bonds, Series D, 5% due 6/15/2018 (a) 4,438
11,120 New Jersey State Transportation Trust Fund Authority, Transportation System
Revenue Bonds, Series D, 5% due 6/15/2019 (g) 11,656
New Mexico - 4.0% 3,000 Farmington, New Mexico, PCR, Refunding (Public Service Company of New Mexico -
San Juan Project), Series D, 6.375% due 4/01/2022 3,065
9,000 Farmington, New Mexico, PCR, Refunding (Tucson Electric Power Company -
San Juan Project), Series A, 6.95% due 10/01/2020 9,188
9,520 New Mexico Finance Authority, Senior Lien State Transportation Revenue Bonds,
Series A, 5.125% due 6/15/2018 (h) 10,093
New York - 25.6% 1,090 Dutchess County, New York, IDA, Civic Facility Revenue Bonds
(Saint Francis Hospital), Series B, 7.25% due 3/01/2019 1,165
10,500 Metropolitan Transportation Authority, New York, Revenue Refunding Bonds,
Series A, 5.75% due 11/15/2032 11,132
3,500 New York City, New York, City IDA, Special Facility Revenue Bonds
(Continental Airlines Inc. Project), AMT, 8.375% due 11/01/2016 3,779
1,110 New York City, New York, City Transitional Finance Authority, Future Tax
Secured Revenue Bonds, Series C, 5.50% due 5/01/2009 (i) 1,154
5,000 New York City, New York, GO, Refunding, Series B, 5.75% due 8/01/2015 5,418
2,055 New York City, New York, IDA, Civic Facility Revenue Bonds (Special Needs
Facilities Pooled Program), Series C-1, 6.80% due 7/01/2019 2,147
9,070 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds,
Series A, 5% due 10/15/2020 (h) 9,451
5,580 New York State Dormitory Authority, Lease Revenue Refunding Bonds
(Court Facilities), Series A, 5.25% due 5/15/2012 5,916
8,285 New York State Dormitory Authority, Non-State Supported Debt, Revenue Refunding
Bonds (Mount Sinai-NYU Medical Center Health System), Series A,
6.625% due 7/01/2010 (i) 9,019
2,385 New York State Dormitory Authority, Non-State Supported Debt, Revenue Refunding
Bonds (Mount Sinai-NYU Medical Center Health System), Series A,
6.625% due 7/01/2018 2,502
1,330 New York State Dormitory Authority, Non-State Supported Debt, Revenue Refunding
Bonds (Mount Sinai-NYU Medical Center Health System), Series A,
6.625% due 7/01/2019 1,394
1,000 New York State Dormitory Authority Revenue Bonds (North Shore L I Jewish Group),
5% due 5/01/2012 1,045
9,540 New York State Dormitory Authority Revenue Bonds (School Districts Financing
Program), Series D, 5.25% due 10/01/2023 (h) 9,984
7,775 New York State Dormitory Authority Revenue Refunding Bonds (City University
System), Consolidated Second Generation, Series A, 6.125% due 7/01/2013 (a) 8,332
7,380 New York State Environmental Facilities Corporation, State Personal Income Tax
Revenue Bonds, Series A, 5.25% due 12/15/2014 (c)(i) 8,065
60 New York State Thruway Authority, Local Highway and Bridge Service Contract,
Revenue Refunding Bonds, 5.50% due 4/01/2017 64
825 New York State Urban Development Corporation, Correctional and Youth
Facilities Services, Revenue Refunding Bonds, Series A, 5.50% due 1/01/2011 (i) 874
10,825 New York State Urban Development Corporation, Correctional and Youth
Facilities Services, Revenue Refunding Bonds, Series A, 5.50% due 1/01/2017 11,375
10,000 New York State Urban Development Corporation, Personal Income Tax Revenue Bonds
(State Facilities), Series A-1, 5.25% due 3/15/2034 (c) 10,372
5,000 Port Authority of New York and New Jersey, Senior Consolidated Revenue Bonds,
AMT, 131st Series, 5% due 12/15/2017 (b) 5,206
6,510 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series A-1,
5.25% due 6/01/2022 (a) 6,818
9,750 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1,
5.50% due 6/01/2020 (c) 10,370
7,000 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1,
5.50% due 6/01/2021 7,405
10,000 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1,
5.50% due 6/01/2022 10,553
North Carolina - 1.7% 3,105 Gaston County, North Carolina, Industrial Facilities and Pollution Control
Financing Authority, Revenue Bonds (National Gypsum Company Project), AMT,
5.75% due 8/01/2035 3,143
6,000 North Carolina Medical Care Commission, Health Care Facilities, First Mortgage
Revenue Refunding Bonds (Presbyterian Homes Project), 7% due 10/01/2010 (i) 6,625
Ohio - 0.2% 1,280 Port of Greater Cincinnati Development Authority, Ohio, Special Assessment
Revenue Bonds (Cooperative Public Parking Infrastructure Project),
6.30% due 2/15/2024 1,332
Pennsylvania - 9.0% 3,500 Montgomery County, Pennsylvania, IDA, Revenue Bonds (Whitemarsh Continuing Care
Project), 6% due 2/01/2021 3,533
7,710 Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue
Bonds (National Gypsum Company), AMT, Series A, 6.25% due 11/01/2027 7,875
2,895 Philadelphia, Pennsylvania, Airport Revenue Bonds (Philadelphia Airport System),
AMT, Series A, 5% due 6/15/2020 (g) 2,962
3,905 Philadelphia, Pennsylvania, Airport Revenue Refunding Bonds (Philadelphia Airport
System), AMT, Series B, 5% due 6/15/2019 (g) 4,014
7,490 Philadelphia, Pennsylvania, Gas Works Revenue Refunding Bonds,
1975 General Ordinance, 17th Series, 5.375% due 7/01/2022 (g) 7,935
9,630 Pittsburgh, Pennsylvania, GO, Refunding, Series B, 5.25% due 9/01/2017 (g) 10,394
6,430 Pittsburgh, Pennsylvania, GO, Series C, 5.25% due 9/01/2018 (g) 6,903
4,615 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds
(Guthrie Healthcare System), Series A, 6.25% due 12/01/2011 (i) 5,105
455 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds
(Guthrie Healthcare System), Series A, 6.25% due 12/01/2015 489
785 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds
(Guthrie Healthcare System), Series A, 6.25% due 12/01/2016 842
385 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds
(Guthrie Healthcare System), Series A, 6.25% due 12/01/2018 411
South Carolina - 2.2% 8,000 Georgetown County, South Carolina, Pollution Control Facilities, Revenue
Refunding Bonds (International Paper Company Project), Series A,
5.125% due 2/01/2012 8,158
4,250 Medical University Hospital Authority, South Carolina, Mortgage Hospital
Facilities, Revenue Refunding Bonds, Series A, 5.25% due 8/15/2023 (d)(h)(n) 4,395
Tennessee - 4.8% 1,800 Johnson City, Tennessee, Health and Educational Facilities Board, Retirement
Facility Revenue Bonds (Appalachian Christian Village Project), Series A,
6% due 2/15/2019 1,808
5,000 McMinn County, Tennessee, IDB, PCR (Calhoun Newsprint Co. Project), AMT,
7.625% due 3/01/2016 5,024
2,005 Memphis-Shelby County, Tennessee, Airport Authority, Airport Revenue Bonds, AMT,
Series A, 5.50% due 3/01/2017 (g) 2,078
2,800 Sevier County, Tennessee, Public Building Authority, Local Government Public
Improvement Revenue Bonds, VRDN, AMT, Series III-A, 4% due 6/01/2028 (a)(k) 2,800
3,550 Shelby County, Tennessee, Health, Educational & Housing Facilities Board
Revenue Bonds (Germantown Village), Series A, 6.75% due 12/01/2018 3,441
1,450 Shelby County, Tennessee, Health, Educational & Housing Facilities Board
Revenue Bonds (Germantown Village), Series A, 7% due 12/01/2023 1,425
6,000 Shelby County, Tennessee, Health, Educational and Housing Facility Board,
Hospital Revenue Refunding Bonds (Methodist Healthcare), 6% due 9/01/2012 (i) 6,627
3,500 Shelby County, Tennessee, Health, Educational and Housing Facility Board,
Hospital Revenue Refunding Bonds (Methodist Healthcare), 6.25% due 9/01/2012 (i) 3,906
Texas - 14.5% 6,230 Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.),
First Tier, Series A, 6.375% due 1/01/2011 (i) 6,654
10,260 Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.),
First Tier, Series A, 6.70% due 1/01/2011 (i) 11,203
1,500 Bexar County, Texas, Health Facilities Development Corporation, Revenue
Refunding Bonds (Army Retirement Residence Project), 6.30% due 7/01/2012 (i) 1,678
5,085 Brazos River Authority, Texas, PCR, Refunding (TXU Energy Company LLC Project),
AMT, Series A, 7.70% due 4/01/2033 5,563
1,500 Brazos River Authority, Texas, PCR, Refunding (TXU Energy Company LLC Project),
AMT, Series A, 6.75% due 4/01/2038 1,557
4,000 Dallas-Fort Worth, Texas, International Airport Facility Improvement Corporation,
Revenue Bonds (Learjet Inc.), AMT, Series A-1, 6.15% due 1/01/2016 4,001
5,000 Dallas-Fort Worth, Texas, International Airport Facility Improvement Corporation,
Revenue Refunding Bonds, AMT, Series A-2, 9% due 5/01/2029 5,807
2,440 Gulf Coast, Texas, IDA, Solid Waste Disposal Revenue Bonds
(Citgo Petroleum Corporation Project), AMT, 7.50% due 5/01/2025 2,663
3,000 Gulf Coast Waste Disposal Authority, Texas, Revenue Refunding Bonds
(International Paper Company), AMT, Series A, 6.10% due 8/01/2024 3,089
5,790 Houston, Texas, Airport System Revenue Refunding Bonds, Sub-Lien, AMT,
Series A, 5.50% due 7/01/2023 (g) 5,948
1,500 Houston, Texas, Health Facilities Development Corporation, Retirement Facility
Revenue Bonds (Buckingham Senior Living Community), Series A, 7% due 2/15/2014 (i) 1,767
7,420 Lower Colorado River Authority, Texas, PCR (Samsung Austin Semiconductor), AMT,
6.95% due 4/01/2030 7,789
2,600 Matagorda County, Texas, Navigation District Number 1, Revenue Refunding Bonds
(Reliant Energy Inc.), Series C, 8% due 5/01/2029 2,694
2,300 Port Corpus Christi, Texas, Individual Development Corporation, Environmental
Facilities Revenue Bonds (Citgo Petroleum Corporation Project), AMT,
8.25% due 11/01/2031 2,351
5,000 Sabine River Authority, Texas, PCR, Refunding (TXU Electric Company Project/TXU
Energy Company LLC), AMT, Series B, 5.75% due 5/01/2030 4,974
8,000 Texas State Affordable Housing Corporation, S/F Mortgage Revenue Bonds
(Professional Educators Home Loan Program), AMT, Series A-3,
5.60% due 2/01/2039 (e)(f) 8,435
5,000 Texas State Affordable Housing Corporation, S/F Mortgage Revenue Bonds
(Professional Educators Home Loan Program), AMT, Series B,
5.95% due 12/01/2039 (e)(f) 5,395
Virginia - 4.7% 3,285 James City County, Virginia, IDA, Residential Care Facility Revenue Refunding
Bonds, Series A, 5.75% due 3/01/2017 3,302
1,150 James City County, Virginia, IDA, Residential Care Facility Revenue Refunding
Bonds, Series A, 6% due 3/01/2023 1,162
2,250 Loudoun County, Virginia, IDA, IDR, Refunding (Dulles Airport Marriott Hotel),
7.125% due 9/01/2015 2,256
10,735 Pocahontas Parkway Association, Virginia, Toll Road Revenue Bonds,
Senior Series A, 5.50% due 8/15/2008 (i) 11,126
7,800 Tobacco Settlement Financing Corporation of Virginia, Asset-Backed Revenue Bonds,
5.625% due 6/01/2015 (i) 8,599
Washington - 2.1% 1,500 Seattle, Washington, Municipal Light and Power Revenue Bonds,
5.30% due 12/01/2020 (h) 1,563
10,000 Snohomish County, Washington, School District Number 015 (Edmonds), GO,
5% due 12/01/2019 (c) 10,484
Guam - 0.9% 4,000 Commonwealth of the Northern Mariana Islands, Guam, GO, Series A,
6.75% due 10/01/2013 (i) 4,597
250 Commonwealth of the Northern Mariana Islands, Guam, GO, Series A,
6.75% due 10/01/2033 265
Puerto Rico - 7.9% 1,820 Puerto Rico Commonwealth, Public Improvement, GO, Refunding, Series B,
5.25% due 7/01/2032 1,853
17,935 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series NN,
5.50% due 7/01/2013 (i) 19,555
5,390 Puerto Rico Industrial, Medical and Environmental Pollution Control Facilities
Financing Authority, Special Facilities Revenue Bonds (American Airlines Inc.),
Series A, 6.45% due 12/01/2025 5,424
5,170 Puerto Rico Public Buildings Authority, Government Facilities Revenue Refunding
Bonds, Series D, 5.25% due 7/01/2027 5,276
8,000 Puerto Rico Public Buildings Authority, Government Facilities Revenue Refunding
Bonds, Series I, 5.50% due 7/01/2021 8,461
3,535 Puerto Rico Public Finance Corporation, Commonwealth Appropriation Revenue
Bonds, Series E, 5.50% due 2/01/2012 (i) 3,789
U.S. Virgin 1,860 Virgin Islands Government Refinery Facilities, Revenue Refunding Bonds
Islands - 1.6% (Hovensa Coker Project), AMT, 6.50% due 7/01/2021 1,952
6,750 Virgin Islands Public Finance Authority, Refinery Facilities Revenue Bonds
(Hovensa Refinery), AMT, 6.125% due 7/01/2022 6,951
Total Municipal Bonds (Cost - $825,040) - 150.3% 843,490
Municipal Bonds Held in Trust (l)
California - 3.3% 17,730 California Pollution Control Financing Authority, PCR, Refunding
(Pacific Gas and Electric), AMT, Series A, 5.35% due 12/01/2016 (h) 18,609
New York - 2.1% 11,100 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds,
Series A, 5.25% due 10/15/2027 (a) 11,650
Texas - 5.8% 31,240 Harris County, Texas, Toll Road Revenue Refunding Bonds, Senior Lien, Series A,
5.25% due 8/15/2035 (g) 32,592
Total Municipal Bonds Held in Trust (Cost - $63,151) - 11.2% 62,851
Total Investments (Cost - $888,191*) - 161.5% 906,341
Other Assets Less Liabilities - 1.0% 5,487
Liabilities for Trust Certificates, Including Interest Expense Payable - (5.4%) (30,224)
Preferred Stock, at Redemption Value - (57.1%) (320,344)
-----------
Net Assets Applicable to Common Stock - 100.0% $ 561,260
===========
* The cost and unrealized appreciation (depreciation) of investments as
of August 31, 2007, as computed for federal income tax purposes,
were as follows:
Aggregate cost $ 858,835
=============
Gross unrealized appreciation $ 23,101
Gross unrealized depreciation (5,630)
-------------
Net unrealized appreciation $ 17,471
=============
(a) AMBAC Insured.
(b) CIFG Insured.
(c) FGIC Insured.
(d) FHA Insured.
(e) FHLMC Collateralized.
(f) FNMA/GNMA Collateralized.
(g) FSA Insured.
(h) MBIA Insured.
(i) Prerefunded.
(j) Represents a pay-in-kind security which may pay interest/dividends
in additional face/shares.
(k) 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.
(l) 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.
(m) XL Capital Insured.
(n) Federal Housing Administration/Veterans' Administration Mortgages
packaged by the Federal National Mortgage Association.
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)
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 Muni Intermediate Duration Fund, Inc.
By: /s/ Robert C. Doll, Jr.
-----------------------
Robert C. Doll, Jr.,
Chief Executive Officer (principal executive officer) of
BlackRock Muni Intermediate Duration Fund, Inc.
Date: October 22, 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 (principal executive officer) of
BlackRock Muni Intermediate Duration Fund, Inc.
Date: October 22, 2007
By: /s/ Donald C. Burke
-------------------
Donald C. Burke,
Chief Financial Officer (principal financial officer) of
BlackRock Muni Intermediate Duration Fund, Inc.
Date: October 22, 2007