<SEC-DOCUMENT>0000844779-18-000060-index.html : 20180301
<SEC-HEADER>0000844779-18-000060.hdr.sgml : 20180301
<ACCEPTANCE-DATETIME>20180301113325
ACCESSION NUMBER:		0000844779-18-000060
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180301
DATE AS OF CHANGE:		20180301
EFFECTIVENESS DATE:		20180301

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BlackRock Utilities, Infrastructure & Power Opportunities Trust
		CENTRAL INDEX KEY:			0001528988
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-22606
		FILM NUMBER:		18655364

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809-3700
		BUSINESS PHONE:		(800) 882-0052

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809-3700

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BlackRock Utility & Infrastructure Trust
		DATE OF NAME CHANGE:	20110830
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B
<SEQUENCE>1
<FILENAME>buianswer.fil
<TEXT>
Document 1 - file: buianswer.fil

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77D POLICIES
<SEQUENCE>2
<FILENAME>77DBUI.txt
<TEXT>
Document 2 - file: 77DBUI.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>3
<FILENAME>77Q1aBUI.txt
<TEXT>
Document 3 - file: 77Q1aBUI.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>4
<FILENAME>77Q1bBUI.txt
<TEXT>
Document 4 - file: 77Q1bBUI.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>5
<FILENAME>77BBUI.txt
<TEXT>
Document 5 - file: 77BBUI.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q2 ITEM 405
<SEQUENCE>6
<FILENAME>77Q2BUI.txt
<TEXT>
Document 6 - file: 77Q2BUI.txt

</DOCUMENT>
</SEC-DOCUMENT>