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Filing Detail
Form N-CSRS - Certified Shareholder Report, Semi-Annual:
SEC Accession No. 0001171200-11-000413
Filing Date
2011-05-06
Accepted
2011-05-06 09:35:09
Documents
7
Period of Report
2011-02-28
Effectiveness Date
2011-05-06

Document Format Files

Seq Description Document Type Size
1 i00205_bna-ncsrs.htm N-CSRS 8767248
2 GRAPHIC i00192001_v1.jpg GRAPHIC 3334
3 GRAPHIC i00192002_v1.jpg GRAPHIC 3215
4 GRAPHIC i00192003_v1.jpg GRAPHIC 5689
5 GRAPHIC i00192004_v1.jpg GRAPHIC 3080
6 i00205_ex99-cert.htm EX-99.CERT 25462
7 i00205_ex99-906cert.htm EX-99.906CERT 4704
  Complete submission text file 0001171200-11-000413.txt   8820397
Mailing Address 100 BELLEVUE PARKWAY MUTUAL FUND DEPARTMENT WILMINGTON DE 19809
Business Address 100 BELLEVUE PARKWAY MUTUAL FUND DEPARTMENT WILMINGTON NY 19809 888-825-2257
BLACKROCK INCOME OPPORTUNITY TRUST INC (Filer) CIK: 0000880280 (see all company filings)

IRS No.: 133634989 | State of Incorp.: MD | Fiscal Year End: 1031
Type: N-CSRS | Act: 40 | File No.: 811-06443 | Film No.: 11816910