<SEC-DOCUMENT>0000728889-18-001192-index.html : 20180807
<SEC-HEADER>0000728889-18-001192.hdr.sgml : 20180807
<ACCEPTANCE-DATETIME>20180807160125
ACCESSION NUMBER:		0000728889-18-001192
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180807
DATE AS OF CHANGE:		20180807

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TC PIPELINES LP
		CENTRAL INDEX KEY:			0001075607
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		IRS NUMBER:				522135448
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-56405
		FILM NUMBER:		18997885

	BUSINESS ADDRESS:	
		STREET 1:		700 LOUISIANA STREET, SUITE 700
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002-2700
		BUSINESS PHONE:		(877) 290-2772

	MAIL ADDRESS:	
		STREET 1:		700 LOUISIANA STREET, SUITE 700
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002-2700

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OppenheimerFunds, Inc.
		CENTRAL INDEX KEY:			0000728889
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		225 LIBERTY STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10281-1008
		BUSINESS PHONE:		212-323-0200

	MAIL ADDRESS:	
		STREET 1:		225 LIBERTY STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10281-1008

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OPPENHEIMER FUNDS INC
		DATE OF NAME CHANGE:	20020227

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OPPENHEIMER MANAGEMENT CORP
		DATE OF NAME CHANGE:	19940131
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>tcpipelineslp6.htm
<TEXT>
Document 1 - file: tcpipelineslp6.htm

</DOCUMENT>
</SEC-DOCUMENT>