<SEC-DOCUMENT>0001612720-19-000023-index.html : 20190617
<SEC-HEADER>0001612720-19-000023.hdr.sgml : 20190617
<ACCEPTANCE-DATETIME>20190617125411
ACCESSION NUMBER:		0001612720-19-000023
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20190617
FILED AS OF DATE:		20190617
DATE AS OF CHANGE:		20190617
EFFECTIVENESS DATE:		20190617

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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36842
		FILM NUMBER:		19900952

	BUSINESS ADDRESS:	
		STREET 1:		1000 LOUISIANA STREET
		STREET 2:		SUITE 3900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		7135741880

	MAIL ADDRESS:	
		STREET 1:		1000 LOUISIANA STREET
		STREET 2:		SUITE 3900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Harmony Merger Corp.
		DATE OF NAME CHANGE:	20140703
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>next-20190617xdef14a.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: next-20190617xdef14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>next20190617xdef14a001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: next20190617xdef14a001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>next20190617xdef14a002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: next20190617xdef14a002.gif

</DOCUMENT>
</SEC-DOCUMENT>