<SEC-DOCUMENT>0001213900-17-009938-index.html : 20170922
<SEC-HEADER>0001213900-17-009938.hdr.sgml : 20170922
<ACCEPTANCE-DATETIME>20170922172110
ACCESSION NUMBER:		0001213900-17-009938
CONFORMED SUBMISSION TYPE:	S-3/A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20170922
DATE AS OF CHANGE:		20170922

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NextDecade Corp.
		CENTRAL INDEX KEY:			0001612720
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION & DISTRIBUTION [4923]
		IRS NUMBER:				465723951
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-220263
		FILM NUMBER:		171098241

	BUSINESS ADDRESS:	
		STREET 1:		3 WATERWAY SQUARE PLACE
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77380
		BUSINESS PHONE:		832-403-1874

	MAIL ADDRESS:	
		STREET 1:		3 WATERWAY SQUARE PLACE
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77380

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Harmony Merger Corp.
		DATE OF NAME CHANGE:	20140703
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3/A
<SEQUENCE>1
<FILENAME>fs32017a2_nextdecade.htm
<DESCRIPTION>AMENDMENT NO. 2 TO FORM S-3
<TEXT>
Document 1 - file: fs32017a2_nextdecade.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>fs32017a2ex5-1_nextdecade.htm
<DESCRIPTION>OPINION OF KING & SPALDING LLP
<TEXT>
Document 2 - file: fs32017a2ex5-1_nextdecade.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>fs32017a2ex23-1_nextdecade.htm
<DESCRIPTION>CONSENT OF MARCUM LLP
<TEXT>
Document 3 - file: fs32017a2ex23-1_nextdecade.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>ex5-1_001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: ex5-1_001.jpg

</DOCUMENT>
</SEC-DOCUMENT>