<SEC-DOCUMENT>0001140361-17-030161.txt : 20170804
<SEC-HEADER>0001140361-17-030161.hdr.sgml : 20170804
<ACCEPTANCE-DATETIME>20170804091801
ACCESSION NUMBER:		0001140361-17-030161
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		9
FILED AS OF DATE:		20170804
DATE AS OF CHANGE:		20170804

SUBJECT COMPANY:	

	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:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88779
		FILM NUMBER:		171007058

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			York Capital Management Global Advisors, LLC
		CENTRAL INDEX KEY:			0001480532
		IRS NUMBER:				161757441
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		767 FIFTH AVENUE
		STREET 2:		17TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10153
		BUSINESS PHONE:		212-300-1300

	MAIL ADDRESS:	
		STREET 1:		767 FIFTH AVENUE
		STREET 2:		17TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10153
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>formsc13da.htm
<DESCRIPTION>SC 13D/A
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<font style="FONT-SIZE: 14pt">UNITED STATES</font></div>

<div style="FONT-SIZE: 14pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">SECURITIES AND EXCHANGE COMMISSION</div>

<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">WASHINGTON, D.C.&#160; 20549</div>

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<div style="FONT-SIZE: 18pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">SCHEDULE 13D</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">Under the Securities Exchange Act of 1934</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">(Amendment No. 1)*</div>

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<div style="FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">NextDecade Corporation</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Common Stock, par value $0.0001 per share</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">65342K105</div>
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<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">York Capital Management Global Advisors LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">767 Fifth Avenue, 17th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">New York, New York 10153</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Telephone: (212) 300-1300</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">with copies to:</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Jackie Cohen</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Weil, Gotshal &amp; Manges LLP</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">767 Fifth Avenue</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">New York, NY 10153</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Telephone: 212-310-8000</div>

<div>&#160;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">(Name, address and telephone number of person authorized to receive notices and communications)</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">(Date of event which requires filing of this statement)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-RIGHT: 13.5pt">If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of &#167;240.13d-1(e), &#167;240.13d-1(f) or &#167;240.13d-1(g), check the following box &#9744;.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">&#160;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Schedule 13D</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">CUSIP No. 65342K105</div>

<div style="TEXT-ALIGN: center; MARGIN-LEFT: 36pt">&#160;</div>
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<td style="VERTICAL-ALIGN: middle; WIDTH: 34%; BACKGROUND-COLOR: #ffffff">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">1. Name of Reporting Person.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">York Capital Management Global Advisors, LLC</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">2. Check the Appropriate Box if a Member of a Group.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">(a)&#160; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">&#9744;</font></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">(b)&#160; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">&#9746;</font></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">3. SEC Use Only.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">4. Source of Funds.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">OO</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">5. Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e).</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">&#9744;</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">6. Citizenship or Place of Organization. Delaware</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">7. Sole Voting Power.0</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-LEFT: #000000 2px solid; WIDTH: 20%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">Number of Shares</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">Beneficially</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">8. Shared Voting Power. 57,781,121*</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">Owned by</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">Each Reporting</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">Person With:</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">9. Sole Dispositive Power. 0</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-LEFT: #000000 2px solid; WIDTH: 20%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">&#160;</td>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-LEFT: #000000 2px solid; WIDTH: 20%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">&#160;</td>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-LEFT: #000000 2px solid; WIDTH: 20%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27pt">10. Shared Dispositive Power. 57,781,121*</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; BORDER-LEFT: #000000 2px solid; WIDTH: 20%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; WIDTH: 80%; BACKGROUND-COLOR: #ffffff" colspan="2">&#160;</td>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-LEFT: #000000 2px solid; WIDTH: 100%; BACKGROUND-COLOR: #ffffff" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">11. Aggregate Amount Beneficially Owned by Each Reporting Person. 57,781,121*</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-LEFT: #000000 2px solid; WIDTH: 100%; BACKGROUND-COLOR: #ffffff" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">&#9744;</div>
</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">13. Percent of Class Represented by Amount in Row (11)</div>
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<td style="BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-BOTTOM: #000000 2px solid; BORDER-LEFT: #000000 2px solid; WIDTH: 100%; BACKGROUND-COLOR: #ffffff" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">54.93%</div>
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<td style="BORDER-TOP: #000000 2px solid; BORDER-RIGHT: #000000 2px solid; VERTICAL-ALIGN: middle; BORDER-LEFT: #000000 2px solid; WIDTH: 100%; BACKGROUND-COLOR: #ffffff" colspan="3">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">14. Type of Reporting Person.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">OO</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 27.8pt">*Represents<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">&#160;</font>approximately 54.93% of the 105,225,828 issued and outstanding Shares as of the Closing Date reported in the Issuer&#8217;s Current Report on Form 8-K filed with the SEC on July 28, 2017.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">Explanatory Note</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', serif; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">This Amendment No. 1 to Schedule 13D is being filed solely to correct certain minor typographical errors in the Schedule 13D originally filed with the United States Securities and Exchange Commission (the &#8220;Commission&#8221;) on August 3, 2017 (as amended and restated, the &#8220;Statement&#8221;), relating to the shares of common stock, $0.0001 par value per share (&#8220;Shares&#8221;), of NextDecade Corporation, a corporation formed under the laws of the State of Delaware (the &#8220;Issuer&#8221;).&#160; There were no changes to the Schedule 13D other than to correct the CUSIP, delete brackets, correct names to exhibits listed in Item 7 and to make a correction to Exhibit 1.</div>
</div>

<div style="TEXT-ALIGN: left">&#160;</div>

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<table id="z268859cbd91147e4932697e496b3e41c" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; VERTICAL-ALIGN: top; FONT-WEIGHT: bold; WIDTH: 72pt; align: right">Item 1.</td>
<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Security and Issuer.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">This Statement is filed on behalf of the Reporting Persons with the Commission. This Statement relates to the Shares of&#160;the Issuer, The address of the Issuer&#8217;s principal executive offices is 3 Waterway Square Place, The Woodlands, Texas 77380.</div>

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</div>

<div style="TEXT-ALIGN: left">
<table id="zd413cd7599a846fab1e8158e74b135a1" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; VERTICAL-ALIGN: top; FONT-WEIGHT: bold; WIDTH: 72pt; align: right">Item 2.</td>
<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Identity and Background.</div>
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</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">(a) This Statement is being filed by York Capital Management Global Advisors, LLC, a New York limited liability company (&#8220;YGA&#8221; or the &#8220;Reporting Person&#8221;).</div>

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<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">This Statement is being filed by YGA with respect to:</div>

<div></div>

<div></div>

<div><br>
</div>

<div style="TEXT-ALIGN: left">
<table id="z70a374c6283b4b1d8312c69a090057ea" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">9,223,876 Shares directly owned by York Capital Management, L.P., a Delaware limited partnership (&#8220;York Capital&#8221;);</div>
</td>
</tr>
</table>
</div>

<div></div>

<div style="TEXT-ALIGN: left">
<table id="zf0d5a1b47aba43b8bcc9c24ec5877648" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">3,882,287 Shares directly owned by York Select, L.P., a Delaware limited partnership (&#8220;York Select&#8221;);</div>
</td>
</tr>
</table>
</div>

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<div style="TEXT-ALIGN: left">
<table id="zd45bd264282248a4bab6831ad17df5f3" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">3,393,507 Shares directly owned by York Select Master Fund, L.P., a Cayman Islands exempted limited partnership (&#8220;York Select Master&#8221;);</div>
</td>
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</div>

<div></div>

<div style="TEXT-ALIGN: left">
<table id="zbd33cf2a1bbf4ad8ab94d22d17e3b9c2" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">11,730,107 Shares directly owned by York Credit Opportunities Fund, L.P., a Delaware limited partnership (&#8220;York Credit Opportunities&#8221;);</div>
</td>
</tr>
</table>
</div>

<div></div>

<div style="TEXT-ALIGN: left">
<table id="z4b928d8e72d6488ca09ec6c8b78551f9" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">12,604,935 Shares directly owned by York Credit Opportunities Investments Master Fund, L.P., a Cayman limited partnership (&#8220;York Credit Opportunities Master&#8221;)</div>
</td>
</tr>
</table>
</div>

<div></div>

<div style="TEXT-ALIGN: left">
<table id="zcdbd6d23a9c14930a1fc0b89c2714183" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">2,518,089 Shares directly owned by York European Distressed Credit Fund II, L.P., a Delaware limited partnership (&#8220;York European Fund&#8221;);</div>
</td>
</tr>
</table>
</div>

<div></div>

<div style="TEXT-ALIGN: left">
<table id="zc832b31e0d9d42fea8f23491dbded337" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="FONT-SIZE: 10pt; FONT-FAMILY: Symbol, serif; VERTICAL-ALIGN: top; WIDTH: 18pt; align: right">&#183;</td>
<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">13,542,692 Shares directly owned by York Multi-Strategy Master Fund, L.P., a Cayman Islands exempted limited partnership (&#8220;York Multi-Strategy&#8221;); and</div>
</td>
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</table>
</div>

<div></div>

<div style="TEXT-ALIGN: left">
<table id="z1a93709c772b42aab8025697f165e585" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
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<td style="FONT-SIZE: 10pt; FONT-FAMILY: Symbol, serif; VERTICAL-ALIGN: top; WIDTH: 18pt; align: right">&#183;</td>
<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">885,628 Shares directly owned by York Select Investors Master Fund, L.P. (&#8220;York Select Investors&#8221; and together with York Capital, York Select, York Select Master, York Credit Opportunities, York Credit Opportunities Master, York European Fund and York Multi-Strategy, the &#8220;York Funds&#8221;).</div>
</td>
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</div>

<div></div>

<div></div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">YGA, the sole managing member of the general partner of each of York Capital, York Credit Opportunities, York Credit Opportunities Master, York European Fund, York Multi-Strategy and York Managed Holdings, exercises investment discretion over such investment funds and accordingly may be deemed to have beneficial ownership over the Shares directly owned by the York Funds.</div>

<div></div>

<div style="TEXT-ALIGN: left"><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">James G. Dinan is the chairman and a senior manager of YGA.&#160; Matthew Bonanno is a Partner and Co-Head of North American Credit at YGA.&#160; David Magid is a Research Analyst at YGA. William Vrattos is a Partner and Co-Chief Investment Officer at YGA.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Dinan Management, L.L.C., a New York limited liability company (&#8220;Dinan Management&#8221;), is the general partner of York Capital and York Multi-Strategy. YGA is the sole managing member of Dinan Management.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Select Domestic Holdings, LLC, a New York limited liability company (&#8220;York Select Domestic Holdings&#8221;), is the general partner of York Select, York Select Investors and York Select Master. YGA is the sole managing member of York Select Domestic Holdings.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Credit Opportunities Domestic Holdings, LLC, a New York limited liability company (&#8220;York Credit Opportunities Domestic&#8221;), is the general partner of York Credit Opportunities.&#160; YGA is the sole managing members of York Credit Opportunities Domestic.</div>

<div></div>

<div></div>

<div><br>
</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York European Distressed Credit Holdings II, LLC, a New York limited liability company (&#8220;York European Holdings&#8221;), is the general partner of York European Fund. YGA is the sole managing member of York European Holdings.</div>

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</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The name of each director and each executive officer of YGA is set forth on Exhibit 1 to this Statement, which is incorporated herein by reference.</div>

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</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">(b)The principal business office address of each of YGA, the York Funds, York European Holdings, York Credit Opportunities Domestic, Dinan Management and York Select Domestic Holdings.</div>

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</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">c/o York Capital Management</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">767 Fifth Avenue, 17th Floor</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10153</div>

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<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The business address of each other person named in Item 2(a) above is set forth on Exhibit 1 to this Statement, which is incorporated herein by reference.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">(c) YGA provides investment management services to certain investment funds and accounts for which it has discretionary investment authority.</div>

<div></div>

<div></div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Each of York Capital, York Investment, York Select, York Select Master, York European Fund, York Credit Opportunities, York Credit Opportunities Master and York Multi-Strategy is a privately owned investment limited partnership in the principal business of purchasing for investment trading purposes securities and other financial instruments.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Dinan Management is a privately owned limited liability company in the principal business of acting as the general partner of York Capital, York Multi-Strategy and the general partner or manager of certain other private investment funds.</div>

<div></div>

<div style="TEXT-ALIGN: left"><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Select Domestic Holdings is a privately owned limited liability company in the principal business of acting as the general partner of York Select and York Select Master and the manager of one other private investment fund.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York European Holdings is a privately owned limited partnership in the principal business of acting as the manager of certain sub-funds of non-U.S. investment companies that are subject to regulation under applicable European Union directives.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The present principal occupation or employment of each other person named in Item 2(a) above is set forth on Exhibit 1 to this Statement, which is incorporated herein by reference.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">(d)-(e) Neither the Reporting Person nor, to the knowledge of the Reporting Person, any other person named in Item 2(a) above has during the last five years been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.</div>

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<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">(f) The citizenship of each natural person named in Item 2(a) above is set forth on Exhibit 1 to this Statement, which is incorporated herein by reference.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="TEXT-ALIGN: left">
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<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; VERTICAL-ALIGN: top; FONT-WEIGHT: bold; WIDTH: 72pt; align: right">Item 3.</td>
<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Source and Amount of Funds or Other Consideration.</div>
</td>
</tr>
</table>
</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">The responses to Items 4 and 6 of this Statement are incorporated herein by reference.</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">On April 17, 2017, the Issuer, Harmony Merger Sub, LLC, NextDecade, LLC and certain members of NextDecade, LLC and entities affiliated with such members entered into an Agreement and Plan of Merger (the &#8220;Merger Agreement&#8221;) that provided for the merger of NextDecade, LLC with and into Harmony Merger Sub, LLC (the &#8220;Merger&#8221;).&#160; At the closing of the transaction on July 24, 2017 (the &#8220;Closing&#8221;), NextDecade, LLC became a wholly-owned subsidiary of the Issuer.</div>

<div></div>

<div></div>

<div><br>
</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">In connection with the Closing, all outstanding interests in NextDecade, LLC were canceled in exchange for the right to receive Shares of the Issuer, as further provided by the Merger Agreement, including Shares issuable upon the satisfaction of certain milestones as provided in Section 2.11 of the Merger Agreement.&#160;&#160; As a result, York Capital received 9,223,876 Shares (which excludes 1,807,584 contingent&#160; Shares issuable upon the satisfaction of certain milestones); York Select received 3.882.287 Shares (which excludes 728,555 contingent Shares issuable upon the satisfaction of certain milestones); York Select Master received 3,393,507 Shares (which excludes 657,350 contingent Shares issuable upon the satisfaction of certain milestones); York Credit Opportunities received 11,730,107 Shares (which excludes 2,303,585 contingent Shares issuable upon the satisfaction of certain milestones); York Credit Opportunities Master received 12,604,935 Shares (which excludes 2,441,678 contingent Shares issuable upon the satisfaction of certain milestones); York European Fund received 2,518,089 Shares (which excludes 487,774 contingent Shares issuable upon the satisfaction of certain milestones); York Multi-Strategy received 13,542,692 Shares (which excludes 2,623,329 contingent Shares issuable upon the satisfaction of certain milestones); and York Select Investors received 885,628 Shares (which excludes 171,553 contingent Shares issuable upon the satisfaction of certain milestones).</div>

<div></div>

<div><br>
</div>

<div></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">References to, and descriptions of, the Merger Agreement set forth herein are not intended to be complete and are qualified in their entirety by reference to the text of the Agreement, which is included as Exhibit 2.1 to the Issuer&#8217;s Current Report on Form 8-K, dated April 18, 2017.</div>

<div><br>
</div>

<div style="TEXT-ALIGN: left">
<table id="ze53cf6d859f94f3b9785f29aa55d1ff2" class="DSPFListTable" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; WIDTH: 100%" cellspacing="0" cellpadding="0">
<tr>
<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; VERTICAL-ALIGN: top; FONT-WEIGHT: bold; WIDTH: 72pt; align: right">Item 4.</td>
<td style="VERTICAL-ALIGN: top; TEXT-ALIGN: left; WIDTH: auto">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Purpose of Transaction.</div>
</td>
</tr>
</table>
</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">The response to Item 3 of this Statement is incorporated herein by reference.</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">As further described in Item 6, Matthew Bonanno, David Magid and William Vrattos were designated by YGA to serve on the board of directors of the Issuer (the &#8220;Board&#8221;).&#160; Mr. Bonanno is also the Chairperson of the Nominating, Corporate Governance and Compensation Committee.&#160; As a result, the Reporting Person intends to take an active role in working with the Issuer&#8217;s management on operational, financial and strategic initiatives.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Reporting Person is engaged in the investment trading business and, in pursuing this business, analyzes the operations, capital structure and markets of companies, including the Company, on a continuous basis through analysis of documentation and discussions with knowledgeable industry and market observers and with representatives of such companies. The Reporting Person intends to communicate with the Board, members of management and/or other stockholders from time to time with respect to operational, strategic, financial or governance matters or otherwise work with management and the Board.&#160; The Reporting Person intends to review the Reporting Person&#8217;s investment in the Company on a continuing basis. The Reporting Person reserves the right to sell all or some of the shares of Common Stock beneficially owned by them, to purchase additional shares of Common Stock, either separately or together with other persons, or to otherwise trade in the shares of Common Stock, in open market or private transactions. The Reporting Person may receive Shares pursuant to Section 2.11 of the Merger Agreement upon the satisfaction of certain milestones. The Reporting Person also reserves the right to acquire or dispose of derivatives or other instruments related to shares of Common Stock or other securities of the Company, provided that in its judgment such transactions are advisable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Except as set forth herein, the Reporting Person does not have any plans or proposals which relate to or would result in:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(a) the acquisition by any person of additional securities of the Company, or the disposition of securities of the Company;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(b) an extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the Company or any of its subsidiaries;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(c) a sale or transfer of a material amount of assets of the Company or any of its subsidiaries;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(d) any change in the board of directors or management of the Company, including any plans or proposals to change the number or term of directors or to fill any existing vacancies on the board;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(e) any material change in the present capitalization or dividend policy of the Company;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(f) any other material change in the Company&#8217;s business or corporate structure;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(g) changes in the Company&#8217;s charter, bylaws or instruments corresponding thereto or other actions which may impede the acquisition of control of the Company by any person;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(h) causing a class of securities of the Company to be delisted from a national securities exchange or cease to be authorized to be quoted in an inter-dealer quotation system of registered national securities association;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(i) a class of equity securities of the Company becoming eligible for termination of registration pursuant to Section 12(g)(4) of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;); or</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 48.25pt">(j) any action similar to those enumerated in clauses (a)-(i) above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Reporting Person reserves the right to consider, either separately or together with other persons, plans or proposals relating to or resulting in the occurrence of one or more of the transactions described in clauses (a)-(j) above in the future depending upon the factors deemed relevant at the time or from time to time.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Interests in the Securities of the Issuer.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">(a)<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; </font>(i) YGA may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 57,781,121 Shares in the aggregate, which represent approximately 54.93% of the 105,225,828 issued and outstanding Shares as of the Closing Date reported in the Issuer&#8217;s Current Report on Form 8-K filed with the SEC on July 28, 2017.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(ii) York Capital may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 9,223,876 Shares. As the general partner of York Capital, Dinan Management may be deemed to be<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">&#160;</font>the beneficial owner of the Shares beneficially owned by York Capital.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(iii) York Select may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 3,882,287 Shares. As the general partner of York Select, York Select Domestic Holdings may be<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">&#160;</font>deemed to be the beneficial owner of the Shares beneficially owned by York Select.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(iv) York Select Master may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 3,393,507 Shares. As the general partner of York Select Master, York Select Domestic Holdings may be deemed to be the beneficial owner of the Shares beneficially owned by York Select Master.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(v) York Multi-Strategy may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 13,542,692 Shares. As the general partner of York Multi-Strategy, Dinan Management may be deemed to be the beneficial owner of the Shares beneficially owned by York Multi-Strategy.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(vi) York Credit Opportunities Master may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 11,730,107 Shares. As the general partner of York Credit Opportunities Master, York Credit Opportunities Domestic may be deemed to be the beneficial owner of the Shares beneficially owned by York Credit Opportunities Master.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(vii) York Credit Opportunities may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 11,730,107 Shares. As the general partner of York Credit Opportunities, York Credit Opportunities Domestic may be deemed to be the beneficial owner of the Shares beneficially owned by York Credit Opportunities.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(viii) York European Fund may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 2,518,089 Shares. As the general partner of York European Fund, York European Holdings may be deemed to be the beneficial owner of the Shares beneficially owned by York European Fund.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(ix) York Select Investors may, pursuant to Rule 13d-3 of the Exchange Act, be deemed to be the beneficial owner of 885,628 Shares. As the general partner of York Select Investors Master, York Select Domestic Holdings may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by York Select Master.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(x) To the knowledge of the Reporting Person, except as described above, no shares of Common Stock are beneficially owned, or may be deemed to be beneficially owned, by any of the persons named on Exhibit 1 to this Statement. The number of Shares beneficially owned and the percentage of Shares represented thereby, for each person named above, have been computed in accordance with Rule 13d-3 under the Exchange Act.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">On account of certain agreements between the Reporting Person and Kathleen Eisbrenner (as further discussed in Item 6 below), such persons may be deemed a group (the &#8220;Group&#8221;) for the purposes of Section 13(d)(3) of the Exchange Act. As of the date hereof, YGA and the CEO collectively beneficially own 66,446,754 Shares, which represents approximately 63.15% of the Shares as reported in the Issuer&#8217;s Current Report on Form 8-K filed with the SEC on July 28, 2017.&#160;&#160; Information regarding the CEO, including her ownership of Shares, can be found in the Schedule 13D filed by such person on the date hereof with the SEC, and as may be amended from time to time. The Reporting Person assumes no responsibility for the information contained in such Schedule 13D filed by the CEO. The Reporting Person expressly disclaims beneficial ownership of any Shares owned by any other member of the Group.</div>

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<div style="TEXT-ALIGN: left"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#160;&#160;&#160;&#160;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'"> (i) YGA may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 57,781,121&#160; Shares in the aggregate, which represents approximately 54.93% of the 105,225,828 issued and outstanding Shares as of the Closing Date reported in the Issuer&#8217;s Current Report on Form 8-K filed with the SEC on July 28, 2017.</font></div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(ii) York Capital may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 9,223,876 Shares. As the general partner of York Capital, Dinan Management may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 9,223,876 Shares</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(iii) York Select may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 3,882,287 Shares. As the general partner of York Select, York Select Domestic Holdings may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 3,882,287 Shares.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(iv) York Select Master may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 3,393,507 Shares. As the general partner of York Select Master, and York Select Domestic Holdings may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 3,393,507 Shares.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(v) York Credit Opportunities may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 11,730,107 Shares. As the general partner of York Credit Opportunities, York Credit Opportunities Domestic may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 11,730,107 Shares.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(vi) York Credit Opportunities Master may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 12,604,935 Shares. As the general partner of York Credit Opportunities Master, York Credit Opportunities Domestic may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 12,604,935 Shares.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(vii) York Multi-Strategy may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 13,542,692 Shares. As the general partner of York Multi-Strategy, Dinan Management may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 13,542,692 Shares.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(viii) York European Fund may be deemed to have the sole power to dispose of, vote or direct the disposition or vote of 2,518,089 Shares. As the general partner of York European Fund, York European Holdings may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 2,519,089 Shares.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(ix) York Select Investors Master may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 885,628 Shares As the general partner of York Select Investors Master, York Select Domestic Holdings may be deemed to have the sole power to dispose of, direct the disposition of, vote or direct the vote of 885,628 Shares.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">(x) To the knowledge of the Reporting Person, except as described above, none of the persons named on Exhibit 1 to this Statement has, or may be deemed to have, any power to dispose of, direct the disposition of, vote or direct the vote of any Shares.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 45.75pt">(c)&#160; Except as disclosed in Item 3 of this Statement, neither the Reporting Person or, to their knowledge, any of their respective executive officers, directors, general partners, or managing members, as applicable, has effected a transaction in Shares during the 60 calendar days preceding the date of this Schedule 13D.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 45.75pt">(d)&#160; The responses of the Reporting Person to Item 2 and Item 5(a) and (b) of this Schedule 13D are incorporated herein by reference.&#160; Under certain circumstances, partners of the Funds, as the case may be, could have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, shares of Common Stock owned by such Fund. The Reporting Person disclaims beneficial ownership of all shares of Common Stock reported in this statement pursuant to Rule 13d-4 under the Exchange Act. Except as set forth in this Item 5(d), to the knowledge of the Reporting Person, no other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, any other shares of Common Stock deemed to be beneficially owned by the Reporting Person.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 45.75pt">(e)&#160; Not applicable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">Board and Committee Composition after the Merger</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">Pursuant to the terms of the Merger Agreement, immediately following the closing of the Merger, the Board was comprised of eleven (11) directors, including Matthew Bonanno, David Magid and William Vrattos.&#160; Mr. Bonanno is also a member of the Nominating, Corporate Governance and Compensation Committee of the Board.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">Registration Rights Agreement</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">Upon the Closing Date, the former holders of membership interests in NextDecade, LLC, including certain of the York Funds, entered into a registration rights agreement with the Issuer providing such holders with certain demand and piggy-back registration rights with respect to registration statements filed by the Issuer the closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">References to, and descriptions of, the registration rights agreement set forth herein are not intended to be complete and are qualified in their entirety by reference to the text of the agreement, which is included as Exhibit 10.2 to the Issuer&#8217;s Current Report on Form 8-K, dated July 28, 2017.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">Lock-up Agreement</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">By letter agreements dated as of the Closing Date, the former holders of membership interests in NextDecade, LLC, including the York Funds, agreed not to transfer the shares of the Common Stock they received as a result of the Merger for 180 days after the Closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">References to, and descriptions of, the lock-up agreement set forth herein are not intended to be complete and are qualified in their entirety by reference to the text of the agreement, which is attached hereto as Exhibit 10.2.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">CEO Employment Agreement Amendment</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Effective as of the Closing, the employment agreement of Kathleen Eisbrenner, the Chief Executive Officer of the Issuer (the &#8220;CEO&#8221;) was amended, including with respect to a letter agreement with York Capital, to, among other things, reflect the effects of the Merger, including the conversion of the membership interests of NextDecade, LLC into Shares.&#160; Pursuant to the letter amendment, at Closing, a portion of the merger consideration allocated to the York Funds was deposited into an escrow account, and additional Shares may be deposited in such escrow account in connection with the issuance of additional Shares pursuant to Section 2.11 of the Merger Agreement.&#160; Such escrowed Shares may be required to be transferred to the CEO upon the satisfaction of certain milestones.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">References to, and descriptions of, the letter agreement, as amended, and the related employment agreement of the CEO, set forth herein are not intended to be complete and are qualified in their entirety by reference to the text of the agreements, which are incorporated herein by reference to Exhibits 10.4-10.6 from the Current Report on Form 8-K filed by the Issuer on July 28, 2017.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Material to Be Filed as Exhibits</div>
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<div style="TEXT-ALIGN: left">&#160;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">2.1</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Merger Agreement, dated as of April 17, 2017 (incorporated by reference herein from Exhibit&#160;2.1 to the Current Report on Form 8-K filed with the SEC by NextDecade Corporation (f/k/a Harmony Merger Corp.) on April 18, 2017 (SEC File No. 001-36842)).</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">10.1</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Registration Rights Agreement (incorporated by reference herein from Exhibit 10.2 to the Current Report on Form 8-K filed with the SEC by NextDecade Corporation on July 28, 2017 (SEC File No. 001-36842).)</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">10.2*</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Lock-Up Agreement (York Capital Management), dated July 24, 2017</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">10.3*</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Credit Opportunities), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">10.4*</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Credit Op. Investment), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">10.5*</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York European Distressed), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">10.6*</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Multi-Strategy), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">10.7*</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Select Investors), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">10.8*</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Select Master), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">10.9*</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Select), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">10.10</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Employment Agreement, dated May 20, 2015 (incorporated by reference from Exhibit 10.4 to the Current Report on Form 8-K filed by the Issuer on July 28, 2017 (SEC File No. 001-36842).)</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">10.11</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Letter Agreement with Kathleen Eisbrenner, dated November 13, 2015 (incorporated by reference from Exhibit 10.6 to the Current Report on Form 8-K filed by the Issuer on July 28, 2017 (SEC File No. 001-36842).)</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">10.12</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Amendment, dated as of April 17, 2017 (incorporated by reference from Exhibit 10.5 to the Current Report on Form 8-K filed by the Issuer on July 28, 2017 (SEC File No. 001-36842).)</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>
</table>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">
<hr style="BORDER-TOP: medium none; HEIGHT: 2px; BORDER-RIGHT: medium none; BORDER-BOTTOM: medium none; COLOR: #000000; TEXT-ALIGN: left; MARGIN-LEFT: 0px; BORDER-LEFT: medium none; WIDTH: 20%; BACKGROUND-COLOR: #000000; MARGIN-RIGHT: auto" align="left" noshade="noshade">
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">* Filed herewith.</div>

<div></div>

<div></div>

<div><br>
</div>

<div id="DSPFPageBreakArea" style="MARGIN-BOTTOM: 10pt; CLEAR: both; MARGIN-TOP: 10pt">
<div id="DSPFPageNumberArea" style="TEXT-ALIGN: center"><font id="DSPFPageNumber" style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: normal; FONT-STYLE: normal">9</font></div>

<div id="DSPFPageBreak" style="PAGE-BREAK-AFTER: always">
<hr style="BORDER-LEFT-WIDTH: 0px; HEIGHT: 2px; BORDER-RIGHT-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; COLOR: #000000; CLEAR: both; MARGIN: 4px 0px; BORDER-TOP-WIDTH: 0px; WIDTH: 100%; BACKGROUND-COLOR: #000000" noshade="noshade">
</div>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">SIGNATURES</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 48.25pt">After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Dated:&#160; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">August 3</font>, 2017</div>

<div></div>

<div></div>

<div><br>
</div>

<table id="z436375c82a1b4d70920804d165710cf6" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; WIDTH: 100%" cellspacing="0" cellpadding="0" border="0">
<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 48%">&#160;</td>
<td style="VERTICAL-ALIGN: top" colspan="2">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Capital Management Global Advisors, LLC,</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 48%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 2%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 50%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; PADDING-BOTTOM: 2px; WIDTH: 48%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WHITE-SPACE: nowrap; PADDING-BOTTOM: 2px; WIDTH: 2%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">By:&#160; </div>
</td>
<td style="VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid; WIDTH: 50%">/s/ Richard P. Swanson</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 48%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 2%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 50%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Name:&#160; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">Richard P. Swanson</font></div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 48%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 2%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 50%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Title:&#160; &#160; General Counsel</div>
</td>
</tr>
</table>

<div>&#160;</div>

<div id="DSPFPageBreakArea" style="MARGIN-BOTTOM: 10pt; CLEAR: both; MARGIN-TOP: 10pt">
<div id="DSPFPageNumberArea" style="TEXT-ALIGN: center"><font id="DSPFPageNumber" style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: normal; FONT-STYLE: normal">10</font></div>

<div id="DSPFPageBreak" style="PAGE-BREAK-AFTER: always">
<hr style="BORDER-LEFT-WIDTH: 0px; HEIGHT: 2px; BORDER-RIGHT-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; COLOR: #000000; CLEAR: both; MARGIN: 4px 0px; BORDER-TOP-WIDTH: 0px; WIDTH: 100%; BACKGROUND-COLOR: #000000" noshade="noshade">
</div>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center"><u>Exhibit Index</u></div>

<div></div>

<div>&#160;</div>

<div>
<table id="z576a4ed7cb63460690c42b48db58362d" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; WIDTH: 100%" cellspacing="0" cellpadding="0" border="0">
<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="TEXT-ALIGN: left"><u>Exhibit No.</u></div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="TEXT-ALIGN: left; MARGIN-LEFT: 93.6pt"><u>Description</u></div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">2.1</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Merger Agreement, dated as of April 17, 2017 (incorporated by reference herein from Exhibit&#160;2.1 to the Current Report on Form 8-K filed with the SEC by NextDecade Corporation (f/k/a Harmony Merger Corp.) on April 18, 2017 (SEC File No. 001-36842)).</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">10.1</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Registration Rights Agreement (incorporated by reference herein from Exhibit 10.2 to the Current Report on Form 8-K filed with the SEC by NextDecade Corporation on July 28, 2017 (SEC File No. 001-36842).)</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%"><a href="ex10_2.htm">10.2*</a></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Capital Management), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%"><a href="ex10_3.htm">10.3*</a></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Credit Opportunities), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%"><a href="ex10_4.htm">10.4*</a></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Credit Op. Investment), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%"><a href="ex10_5.htm">10.5*</a></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York European Distressed), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%"><a href="ex10_6.htm">10.6*</a></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Multi-Strategy), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%"><a href="ex10_7.htm">10.7*</a></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Select Investors), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%"><a href="ex10_8.htm">10.8*</a></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Select Master), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%"><a href="ex10_9.htm">10.9*</a></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">Lock-Up Agreement (York Select), dated July 24, 2017</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">10.10</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Employment Agreement, dated May 20, 2015 (incorporated by reference from Exhibit 10.4 to the Current Report on Form 8-K filed by the Issuer on July 28, 2017 (SEC File No. 001-36842).)</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">10.11</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Letter Agreement with Kathleen Eisbrenner, dated November 13, 2015 (incorporated by reference from Exhibit 10.6 to the Current Report on Form 8-K filed by the Issuer on July 28, 2017 (SEC File No. 001-36842).)</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">10.12</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 90%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Amendment, dated as of April 17, 2017 (incorporated by reference from Exhibit 10.5 to the Current Report on Form 8-K filed by the Issuer on July 28, 2017 (SEC File No. 001-36842).)</div>
</td>
</tr>
</table>
</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">
<hr style="BORDER-TOP: medium none; HEIGHT: 2px; BORDER-RIGHT: medium none; BORDER-BOTTOM: medium none; COLOR: #000000; TEXT-ALIGN: left; MARGIN-LEFT: 0px; BORDER-LEFT: medium none; WIDTH: 20%; BACKGROUND-COLOR: #000000; MARGIN-RIGHT: auto" align="left" noshade="noshade">
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">* Filed herewith.</div>

<div></div>

<div><br>
</div>

<div id="DSPFPageBreakArea" style="MARGIN-BOTTOM: 10pt; CLEAR: both; MARGIN-TOP: 10pt">
<div id="DSPFPageNumberArea" style="TEXT-ALIGN: center"><font id="DSPFPageNumber" style="FONT-SIZE: 8pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: normal; FONT-STYLE: normal">11</font></div>

<div id="DSPFPageBreak" style="PAGE-BREAK-AFTER: always">
<hr style="BORDER-LEFT-WIDTH: 0px; HEIGHT: 2px; BORDER-RIGHT-WIDTH: 0px; BORDER-BOTTOM-WIDTH: 0px; COLOR: #000000; CLEAR: both; MARGIN: 4px 0px; BORDER-TOP-WIDTH: 0px; WIDTH: 100%; BACKGROUND-COLOR: #000000" noshade="noshade">
</div>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: right">EXHIBIT 1</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">DIRECTORS AND EXECUTIVE OFFICERS OF</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">YORK CAPITAL MANAGEMENT GLOBAL ADVISORS, LLC.</div>

<div><br>
</div>

<table id="z8ba994d9fa82434db0deebf772236a73" style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; BORDER-COLLAPSE: collapse; WIDTH: 100%" cellspacing="0" cellpadding="0" border="0">
<tr>
<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; VERTICAL-ALIGN: bottom; FONT-WEIGHT: normal; FONT-STYLE: normal; WIDTH: 19.47%; BACKGROUND-COLOR: #ffffff">
<div style="TEXT-ALIGN: center"><u>Name</u></div>
</td>
<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; VERTICAL-ALIGN: bottom; FONT-WEIGHT: normal; FONT-STYLE: normal; WIDTH: 15.29%; BACKGROUND-COLOR: #ffffff">
<div style="TEXT-ALIGN: center"><u>Title</u></div>
</td>
<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; VERTICAL-ALIGN: bottom; FONT-WEIGHT: normal; FONT-STYLE: normal; WIDTH: 29.19%; BACKGROUND-COLOR: #ffffff">
<div style="TEXT-ALIGN: center"><u>Principal Business Address</u></div>
</td>
<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; VERTICAL-ALIGN: bottom; FONT-WEIGHT: normal; FONT-STYLE: normal; WIDTH: 26.42%; BACKGROUND-COLOR: #ffffff">
<div style="TEXT-ALIGN: center"><u>Principal Occupation</u></div>
</td>
<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-VARIANT: normal; VERTICAL-ALIGN: bottom; FONT-WEIGHT: normal; FONT-STYLE: normal; WIDTH: 9.63%">
<div style="TEXT-ALIGN: center"><u>Citizenship</u></div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 19.47%; BACKGROUND-COLOR: #ffffff"><font style="FONT-SIZE: 10pt; FONT-VARIANT: normal; FONT-WEIGHT: normal; FONT-STYLE: normal; BACKGROUND-COLOR: #ffffff"></font></td>
<td style="VERTICAL-ALIGN: top; WIDTH: 15.29%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 29.19%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 26.42%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 9.63%">&#160;</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 19.47%; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">James G. Dinan</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 15.29%; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Chief Executive Officer</div>
</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">767 Fifth Avenue</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">17th Fl.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">New York, New York 10153</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 26.42%; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Investment management</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 9.63%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">USA</div>
</td>
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<td style="VERTICAL-ALIGN: top; WIDTH: 15.29%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 29.19%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 26.42%; BACKGROUND-COLOR: #ffffff">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 9.63%">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Daniel A. Schwartz</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Co-Chief&#160;Executive Officer</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 29.19%; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">767 Fifth Avenue</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">17th Fl.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">New York, New York 10153</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 26.42%; BACKGROUND-COLOR: #ffffff">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Investment management</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 9.63%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Canada</div>
</td>
</tr>

<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 19.47%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 15.29%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 29.19%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 26.42%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 9.63%">&#160;</td>
</tr>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">John J. Fosina</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 15.29%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">Chief Financial Officer</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 29.19%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">767 Fifth Avenue</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">17th Fl.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">New York, New York 10153</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 26.42%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Investment management</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 9.63%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">USA</div>
</td>
</tr>
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<div>&#160;</div>

<div>&#160;</div>

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<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>2
<FILENAME>ex10_2.htm
<DESCRIPTION>EXHIBIT 10.2
<TEXT>
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<div style="FONT-WEIGHT: bold; TEXT-ALIGN: right">Exhibit 10.2</div>

<div style="TEXT-ALIGN: right">&#160;</div>

<div>
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">LOCK-UP AGREEMENT</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Harmony Merger Corp.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">777 Third Avenue, 37th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10017</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">NextDecade, LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">3 Waterway Square Place, Suite 400</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Woodlands, Texas 77380</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt">Ladies and Gentlemen:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Reference is made to that certain Agreement and Plan of Merger (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Agreement</font>&#8221;), dated April 17, 2017, by and among Harmony Merger Corp., a Delaware corporation (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Parent</font>&#8221;), Harmony Merger Sub, LLC, a Delaware limited liability company and wholly-owned subsidiary of the Parent (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Sub</font>&#8221;), NextDecade, LLC, a Delaware limited liability company (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">NextDecade</font>&#8221;) and the other signatories parties thereto. Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in the Merger Agreement.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">To induce the parties to consummate the Transactions, the undersigned hereby agrees that it will not, during the period commencing on the date hereof and ending one hundred and eighty (180)&#160; days after the date hereof (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Restricted Period</font>), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Parent Common Stock beneficially owned (as such term is used in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Exchange Act</font>&#8221;)) by the undersigned or any other Related Securities (as defined below) so owned or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the shares of Parent Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of shares of Parent Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (a) transactions relating to shares of Parent Common Stock or Related Securities acquired in open market transactions after the Merger, (b) if the undersigned is a corporation, partnership, limited liability company or other business entity, a disposition, transfer or distribution of shares of Parent Common Stock or Related Securities to its affiliates, limited or general partners, members, stockholders or other equity holders of the undersigned, (c) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities as bona fide gifts or to a trust the beneficiaries of which are exclusively the undersigned or immediate family members of the undersigned, (d) transactions relating to shares of Parent Common Stock or Related Securities by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, (e) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities by will or intestacy, (f) the exercise of options, stock appreciation rights or warrants to purchase shares of Parent Common Stock or (g) transfers, sales, tenders or other dispositions of Parent Common Stock to a bona fide third party pursuant to a tender offer for securities of Parent or any merger, consolidation or other business combination involving a Change of Control of Parent that, in each case with respect to this clause (g), has been approved by the board of directors of Parent (including, without limitation, entering into any lock-up, voting or similar agreement pursuant to which the undersigned may agree to transfer, sell, tender or otherwise dispose of Parent Common Stock in connection with any such transaction, or vote any Parent Common Stock in favor of any such transaction); <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that all shares of Parent Common Stock subject to this agreement that are not so transferred, sold, tendered or otherwise disposed of remain subject to this agreement; and <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font>,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic"> further</font>, that it shall be a condition of transfer, sale, tender or other disposition that if such tender offer or other transaction is not completed, any Parent Common Stock subject to this agreement shall remain subject to the restrictions herein or (h) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer, sale or any other disposition of shares of Parent Common Stock; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that (A) in the case of any transfer, distribution or sale pursuant to clauses (b), (c), (d) or (e) above, each donee, transferee or pledgee shall sign and deliver a lock-up agreement substantially in the form of this letter, (B) in the case of any transfer or distribution pursuant to clauses (a), (b) and (c), no filing by any party (donor, donee, transferor or transferee) under the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above), (C) in the case of clause (f) above, that any shares of Parent Common Stock received upon such exercise, vesting, conversion, exchange or settlement shall be subject to all of the restrictions set forth in this agreement, (D) in the case of clause (h) above such plan does not provide for the transfer of shares of Parent Common Stock during the Restricted Period and the entry into such plan is not publicly disclosed, including in any filing under the Exchange Act, during the Restricted Period and, (E) any filing or announcement by Parent or the undersigned relating to a transfer or distribution under clauses (d), (e), (f) or (g) above shall briefly note the applicable circumstances that cause such clause to apply and explain that the filing or announcement relates solely to transfers or distributions falling within the category described in the relevant clause.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Parent, NextDecade, and the undersigned agree that fifty percent (50%) of the Parent Common Stock issued by Parent to the undersigned at Closing shall be automatically released from this lock-up agreement prior to the expiration of the Restricted Period on the first day following the date on which the closing price of Parent Common Stock equals or exceeds $12.50 per share (as adjusted for share splits, share dividends, reorganizations and recapitalizations or similar events) for any twenty (20) trading days within any thirty (30) trading-day period commencing after the Closing.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Related Securities</font>&#8221; shall mean any options or warrants or other rights to acquire Parent Common Stock (including any Contingent Shares issued to the undersigned within the Restricted Period) or any securities exchangeable or exercisable for or convertible into Parent Common Stock, or to acquire other securities or rights ultimately exchangeable or exercisable for, or convertible into, Parent Common Stock.</div>

<div>&#160;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Change of Control</font>&#8221; shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of Parent&#8217;s voting securities if, after such transfer, such person or group of affiliated persons would hold more than fifty percent (50%) of the outstanding voting securities of Parent (or the surviving entity).</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Public Offering</font>&#8221; means an underwritten public offering of registrable securities pursuant to an effective registration statement under the Securities Act, other than pursuant to a registration statement on Form S-4 or Form S-8 or any similar or successor form.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned understands that Parent and NextDecade are relying upon this agreement in proceeding toward consummation of the Merger.&#160; The undersigned further understands that this agreement is irrevocable.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Notwithstanding anything herein to the contrary, this agreement shall be of no further force or effect and the undersigned shall be released from all obligations under this agreement upon the earlier of (i) the termination of the Merger Agreement and (ii) the first business day following the expiration of the Restricted Period.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">This agreement shall be legally binding on the undersigned and on the undersigned&#8217;s successors and permitted assigns and shall be governed by and construed in accordance with the internal law of the State of Delaware regardless of the law that might otherwise govern under applicable principles of conflicts of law thereof.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned irrevocably consents to the exclusive jurisdiction and venue of the courts of the State of Delaware or the federal courts located in the State of Delaware in connection with any matter based upon or arising out of this agreement, agrees that process may be served upon it in any manner authorized by the laws of the State of Delaware and waives and covenants not to assert or plead any objection which it might otherwise have to such manner of service of process. The undersigned waives, and shall not assert as a defense in any legal dispute, that (a) it is not personally subject to the jurisdiction of the above named courts for any reason, (b) such Legal Proceeding may not be brought or is not maintainable in such court, (c) its property is exempt or immune from execution, (d) such Legal Proceeding is brought in an inconvenient forum or (e) the venue of such Legal Proceeding is improper.&#160; THE UNDERSIGNED UNCONDITIONALLY WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT.&#160; IF THE SUBJECT MATTER OF ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, THE UNDERSIGNED SHALL NOT ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT.&#160; FURTHERMORE, THE UNDERSIGNED SHALL NOT SEEK TO CONSOLIDATE ANY SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED.</div>

<div>&#160;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">IN WITNESS WHEREOF, the undersigned has caused this agreement to be executed as of the date first written above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Very truly yours,</div>
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<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
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<tr>
<td style="VERTICAL-ALIGN: top; WIDTH: 50%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 40%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
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<td style="VERTICAL-ALIGN: top; WIDTH: 40%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Capital Management, L.P.</div>
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<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
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<td style="VERTICAL-ALIGN: top; BORDER-BOTTOM: #000000 2px solid; WIDTH: 40%">/s/ John J. Fosina</td>
<td style="VERTICAL-ALIGN: top; PADDING-BOTTOM: 2px; WIDTH: 10%">&#160;</td>
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<td style="VERTICAL-ALIGN: top; WIDTH: 40%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Name: John J. Fosina</div>
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<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
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<td style="VERTICAL-ALIGN: top; WIDTH: 50%">&#160;</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 40%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Its: Chief Financial Officer</div>
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<td style="VERTICAL-ALIGN: top; WIDTH: 40%">
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Address</div>
</td>
<td style="VERTICAL-ALIGN: top; WIDTH: 10%">&#160;</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">[Signature Page to Lock-Up Agreement]</div>

<div><br>
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<div>&#160;</div>
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<DOCUMENT>
<TYPE>EX-10.3
<SEQUENCE>3
<FILENAME>ex10_3.htm
<DESCRIPTION>EXHIBIT 10.3
<TEXT>
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<div style="FONT-WEIGHT: bold; TEXT-ALIGN: right">Exhibit 10.3</div>

<div>&#160;</div>

<div>
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">LOCK-UP AGREEMENT</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Harmony Merger Corp.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">777 Third Avenue, 37th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">NextDecade, LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">3 Waterway Square Place, Suite 400</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Woodlands, Texas 77380</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt">Ladies and Gentlemen:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Reference is made to that certain Agreement and Plan of Merger (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Agreement</font>&#8221;), dated April 17, 2017, by and among Harmony Merger Corp., a Delaware corporation (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Parent</font>&#8221;), Harmony Merger Sub, LLC, a Delaware limited liability company and wholly-owned subsidiary of the Parent (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Sub</font>&#8221;), NextDecade, LLC, a Delaware limited liability company (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">NextDecade</font>&#8221;) and the other signatories parties thereto. Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in the Merger Agreement.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">To induce the parties to consummate the Transactions, the undersigned hereby agrees that it will not, during the period commencing on the date hereof and ending one hundred and eighty (180)&#160; days after the date hereof (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Restricted Period</font>), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Parent Common Stock beneficially owned (as such term is used in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Exchange Act</font>&#8221;)) by the undersigned or any other Related Securities (as defined below) so owned or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the shares of Parent Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of shares of Parent Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (a) transactions relating to shares of Parent Common Stock or Related Securities acquired in open market transactions after the Merger, (b) if the undersigned is a corporation, partnership, limited liability company or other business entity, a disposition, transfer or distribution of shares of Parent Common Stock or Related Securities to its affiliates, limited or general partners, members, stockholders or other equity holders of the undersigned, (c) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities as bona fide gifts or to a trust the beneficiaries of which are exclusively the undersigned or immediate family members of the undersigned, (d) transactions relating to shares of Parent Common Stock or Related Securities by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, (e) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities by will or intestacy, (f) the exercise of options, stock appreciation rights or warrants to purchase shares of Parent Common Stock or (g) transfers, sales, tenders or other dispositions of Parent Common Stock to a bona fide third party pursuant to a tender offer for securities of Parent or any merger, consolidation or other business combination involving a Change of Control of Parent that, in each case with respect to this clause (g), has been approved by the board of directors of Parent (including, without limitation, entering into any lock-up, voting or similar agreement pursuant to which the undersigned may agree to transfer, sell, tender or otherwise dispose of Parent Common Stock in connection with any such transaction, or vote any Parent Common Stock in favor of any such transaction); <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that all shares of Parent Common Stock subject to this agreement that are not so transferred, sold, tendered or otherwise disposed of remain subject to this agreement; and <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font>,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic"> further</font>, that it shall be a condition of transfer, sale, tender or other disposition that if such tender offer or other transaction is not completed, any Parent Common Stock subject to this agreement shall remain subject to the restrictions herein or (h) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer, sale or any other disposition of shares of Parent Common Stock; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that (A) in the case of any transfer, distribution or sale pursuant to clauses (b), (c), (d) or (e) above, each donee, transferee or pledgee shall sign and deliver a lock-up agreement substantially in the form of this letter, (B) in the case of any transfer or distribution pursuant to clauses (a), (b) and (c), no filing by any party (donor, donee, transferor or transferee) under the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above), (C) in the case of clause (f) above, that any shares of Parent Common Stock received upon such exercise, vesting, conversion, exchange or settlement shall be subject to all of the restrictions set forth in this agreement, (D) in the case of clause (h) above such plan does not provide for the transfer of shares of Parent Common Stock during the Restricted Period and the entry into such plan is not publicly disclosed, including in any filing under the Exchange Act, during the Restricted Period and, (E) any filing or announcement by Parent or the undersigned relating to a transfer or distribution under clauses (d), (e), (f) or (g) above shall briefly note the applicable circumstances that cause such clause to apply and explain that the filing or announcement relates solely to transfers or distributions falling within the category described in the relevant clause.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Parent, NextDecade, and the undersigned agree that fifty percent (50%) of the Parent Common Stock issued by Parent to the undersigned at Closing shall be automatically released from this lock-up agreement prior to the expiration of the Restricted Period on the first day following the date on which the closing price of Parent Common Stock equals or exceeds $12.50 per share (as adjusted for share splits, share dividends, reorganizations and recapitalizations or similar events) for any twenty (20) trading days within any thirty (30) trading-day period commencing after the Closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Related Securities</font>&#8221; shall mean any options or warrants or other rights to acquire Parent Common Stock (including any Contingent Shares issued to the undersigned within the Restricted Period) or any securities exchangeable or exercisable for or convertible into Parent Common Stock, or to acquire other securities or rights ultimately exchangeable or exercisable for, or convertible into, Parent Common Stock.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Change of Control</font>&#8221; shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of Parent&#8217;s voting securities if, after such transfer, such person or group of affiliated persons would hold more than fifty percent (50%) of the outstanding voting securities of Parent (or the surviving entity).</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Public Offering</font>&#8221; means an underwritten public offering of registrable securities pursuant to an effective registration statement under the Securities Act, other than pursuant to a registration statement on Form S-4 or Form S-8 or any similar or successor form.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned understands that Parent and NextDecade are relying upon this agreement in proceeding toward consummation of the Merger.&#160; The undersigned further understands that this agreement is irrevocable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Notwithstanding anything herein to the contrary, this agreement shall be of no further force or effect and the undersigned shall be released from all obligations under this agreement upon the earlier of (i) the termination of the Merger Agreement and (ii) the first business day following the expiration of the Restricted Period.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">This agreement shall be legally binding on the undersigned and on the undersigned&#8217;s successors and permitted assigns and shall be governed by and construed in accordance with the internal law of the State of Delaware regardless of the law that might otherwise govern under applicable principles of conflicts of law thereof.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned irrevocably consents to the exclusive jurisdiction and venue of the courts of the State of Delaware or the federal courts located in the State of Delaware in connection with any matter based upon or arising out of this agreement, agrees that process may be served upon it in any manner authorized by the laws of the State of Delaware and waives and covenants not to assert or plead any objection which it might otherwise have to such manner of service of process. The undersigned waives, and shall not assert as a defense in any legal dispute, that (a) it is not personally subject to the jurisdiction of the above named courts for any reason, (b) such Legal Proceeding may not be brought or is not maintainable in such court, (c) its property is exempt or immune from execution, (d) such Legal Proceeding is brought in an inconvenient forum or (e) the venue of such Legal Proceeding is improper.&#160; THE UNDERSIGNED UNCONDITIONALLY WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT.&#160; IF THE SUBJECT MATTER OF ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, THE UNDERSIGNED SHALL NOT ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT.&#160; FURTHERMORE, THE UNDERSIGNED SHALL NOT SEEK TO CONSOLIDATE ANY SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">IN WITNESS WHEREOF, the undersigned has caused this agreement to be executed as of the date first written above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Very truly yours,</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Credit Opportunities Fund, L.P.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">/s/ John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Name: John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Its: Chief Financial Officer</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">[Signature Page to Lock-Up Agreement]</div>

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<DOCUMENT>
<TYPE>EX-10.4
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<DESCRIPTION>EXHIBIT 10.4
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<div style="FONT-WEIGHT: bold; TEXT-ALIGN: right">Exhibit 10.4</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">LOCK-UP AGREEMENT</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Harmony Merger Corp.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">777 Third Avenue, 37th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10017</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">NextDecade, LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">3 Waterway Square Place, Suite 400</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Woodlands, Texas 77380</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt">Ladies and Gentlemen:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Reference is made to that certain Agreement and Plan of Merger (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Agreement</font>&#8221;), dated April 17, 2017, by and among Harmony Merger Corp., a Delaware corporation (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Parent</font>&#8221;), Harmony Merger Sub, LLC, a Delaware limited liability company and wholly-owned subsidiary of the Parent (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Sub</font>&#8221;), NextDecade, LLC, a Delaware limited liability company (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">NextDecade</font>&#8221;) and the other signatories parties thereto. Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in the Merger Agreement.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">To induce the parties to consummate the Transactions, the undersigned hereby agrees that it will not, during the period commencing on the date hereof and ending one hundred and eighty (180)&#160; days after the date hereof (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Restricted Period</font>), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Parent Common Stock beneficially owned (as such term is used in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Exchange Act</font>&#8221;)) by the undersigned or any other Related Securities (as defined below) so owned or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the shares of Parent Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of shares of Parent Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (a) transactions relating to shares of Parent Common Stock or Related Securities acquired in open market transactions after the Merger, (b) if the undersigned is a corporation, partnership, limited liability company or other business entity, a disposition, transfer or distribution of shares of Parent Common Stock or Related Securities to its affiliates, limited or general partners, members, stockholders or other equity holders of the undersigned, (c) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities as bona fide gifts or to a trust the beneficiaries of which are exclusively the undersigned or immediate family members of the undersigned, (d) transactions relating to shares of Parent Common Stock or Related Securities by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, (e) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities by will or intestacy, (f) the exercise of options, stock appreciation rights or warrants to purchase shares of Parent Common Stock or (g) transfers, sales, tenders or other dispositions of Parent Common Stock to a bona fide third party pursuant to a tender offer for securities of Parent or any merger, consolidation or other business combination involving a Change of Control of Parent that, in each case with respect to this clause (g), has been approved by the board of directors of Parent (including, without limitation, entering into any lock-up, voting or similar agreement pursuant to which the undersigned may agree to transfer, sell, tender or otherwise dispose of Parent Common Stock in connection with any such transaction, or vote any Parent Common Stock in favor of any such transaction); <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that all shares of Parent Common Stock subject to this agreement that are not so transferred, sold, tendered or otherwise disposed of remain subject to this agreement; and <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font>,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic"> further</font>, that it shall be a condition of transfer, sale, tender or other disposition that if such tender offer or other transaction is not completed, any Parent Common Stock subject to this agreement shall remain subject to the restrictions herein or (h) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer, sale or any other disposition of shares of Parent Common Stock; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that (A) in the case of any transfer, distribution or sale pursuant to clauses (b), (c), (d) or (e) above, each donee, transferee or pledgee shall sign and deliver a lock-up agreement substantially in the form of this letter, (B) in the case of any transfer or distribution pursuant to clauses (a), (b) and (c), no filing by any party (donor, donee, transferor or transferee) under the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above), (C) in the case of clause (f) above, that any shares of Parent Common Stock received upon such exercise, vesting, conversion, exchange or settlement shall be subject to all of the restrictions set forth in this agreement, (D) in the case of clause (h) above such plan does not provide for the transfer of shares of Parent Common Stock during the Restricted Period and the entry into such plan is not publicly disclosed, including in any filing under the Exchange Act, during the Restricted Period and, (E) any filing or announcement by Parent or the undersigned relating to a transfer or distribution under clauses (d), (e), (f) or (g) above shall briefly note the applicable circumstances that cause such clause to apply and explain that the filing or announcement relates solely to transfers or distributions falling within the category described in the relevant clause.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Parent, NextDecade, and the undersigned agree that fifty percent (50%) of the Parent Common Stock issued by Parent to the undersigned at Closing shall be automatically released from this lock-up agreement prior to the expiration of the Restricted Period on the first day following the date on which the closing price of Parent Common Stock equals or exceeds $12.50 per share (as adjusted for share splits, share dividends, reorganizations and recapitalizations or similar events) for any twenty (20) trading days within any thirty (30) trading-day period commencing after the Closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Change of Control</font>&#8221; shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of Parent&#8217;s voting securities if, after such transfer, such person or group of affiliated persons would hold more than fifty percent (50%) of the outstanding voting securities of Parent (or the surviving entity).</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Public Offering</font>&#8221; means an underwritten public offering of registrable securities pursuant to an effective registration statement under the Securities Act, other than pursuant to a registration statement on Form S-4 or Form S-8 or any similar or successor form.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned understands that Parent and NextDecade are relying upon this agreement in proceeding toward consummation of the Merger.&#160; The undersigned further understands that this agreement is irrevocable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Notwithstanding anything herein to the contrary, this agreement shall be of no further force or effect and the undersigned shall be released from all obligations under this agreement upon the earlier of (i) the termination of the Merger Agreement and (ii) the first business day following the expiration of the Restricted Period.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">This agreement shall be legally binding on the undersigned and on the undersigned&#8217;s successors and permitted assigns and shall be governed by and construed in accordance with the internal law of the State of Delaware regardless of the law that might otherwise govern under applicable principles of conflicts of law thereof.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned irrevocably consents to the exclusive jurisdiction and venue of the courts of the State of Delaware or the federal courts located in the State of Delaware in connection with any matter based upon or arising out of this agreement, agrees that process may be served upon it in any manner authorized by the laws of the State of Delaware and waives and covenants not to assert or plead any objection which it might otherwise have to such manner of service of process. The undersigned waives, and shall not assert as a defense in any legal dispute, that (a) it is not personally subject to the jurisdiction of the above named courts for any reason, (b) such Legal Proceeding may not be brought or is not maintainable in such court, (c) its property is exempt or immune from execution, (d) such Legal Proceeding is brought in an inconvenient forum or (e) the venue of such Legal Proceeding is improper.&#160; THE UNDERSIGNED UNCONDITIONALLY WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT.&#160; IF THE SUBJECT MATTER OF ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, THE UNDERSIGNED SHALL NOT ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT.&#160; FURTHERMORE, THE UNDERSIGNED SHALL NOT SEEK TO CONSOLIDATE ANY SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">IN WITNESS WHEREOF, the undersigned has caused this agreement to be executed as of the date first written above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Very truly yours,</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Credit Opportunities Investments Master Fund, L.P.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">/s/ John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Name: John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Its: Chief Financial Officer</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">[Signature Page to Lock-Up Agreement]</div>

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<DESCRIPTION>EXHIBIT 10.5
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<div style="FONT-WEIGHT: bold; TEXT-ALIGN: right">Exhibit 10.5</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">LOCK-UP AGREEMENT</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Harmony Merger Corp.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">777 Third Avenue, 37th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">NextDecade, LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">3 Waterway Square Place, Suite 400</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Woodlands, Texas 77380</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt">Ladies and Gentlemen:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Reference is made to that certain Agreement and Plan of Merger (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Agreement</font>&#8221;), dated April 17, 2017, by and among Harmony Merger Corp., a Delaware corporation (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Parent</font>&#8221;), Harmony Merger Sub, LLC, a Delaware limited liability company and wholly-owned subsidiary of the Parent (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Sub</font>&#8221;), NextDecade, LLC, a Delaware limited liability company (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">NextDecade</font>&#8221;) and the other signatories parties thereto. Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in the Merger Agreement.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">To induce the parties to consummate the Transactions, the undersigned hereby agrees that it will not, during the period commencing on the date hereof and ending one hundred and eighty (180)&#160; days after the date hereof (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Restricted Period</font>), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Parent Common Stock beneficially owned (as such term is used in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Exchange Act</font>&#8221;)) by the undersigned or any other Related Securities (as defined below) so owned or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the shares of Parent Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of shares of Parent Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (a) transactions relating to shares of Parent Common Stock or Related Securities acquired in open market transactions after the Merger, (b) if the undersigned is a corporation, partnership, limited liability company or other business entity, a disposition, transfer or distribution of shares of Parent Common Stock or Related Securities to its affiliates, limited or general partners, members, stockholders or other equity holders of the undersigned, (c) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities as bona fide gifts or to a trust the beneficiaries of which are exclusively the undersigned or immediate family members of the undersigned, (d) transactions relating to shares of Parent Common Stock or Related Securities by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, (e) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities by will or intestacy, (f) the exercise of options, stock appreciation rights or warrants to purchase shares of Parent Common Stock or (g) transfers, sales, tenders or other dispositions of Parent Common Stock to a bona fide third party pursuant to a tender offer for securities of Parent or any merger, consolidation or other business combination involving a Change of Control of Parent that, in each case with respect to this clause (g), has been approved by the board of directors of Parent (including, without limitation, entering into any lock-up, voting or similar agreement pursuant to which the undersigned may agree to transfer, sell, tender or otherwise dispose of Parent Common Stock in connection with any such transaction, or vote any Parent Common Stock in favor of any such transaction); <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that all shares of Parent Common Stock subject to this agreement that are not so transferred, sold, tendered or otherwise disposed of remain subject to this agreement; and <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font>,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic"> further</font>, that it shall be a condition of transfer, sale, tender or other disposition that if such tender offer or other transaction is not completed, any Parent Common Stock subject to this agreement shall remain subject to the restrictions herein or (h) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer, sale or any other disposition of shares of Parent Common Stock; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that (A) in the case of any transfer, distribution or sale pursuant to clauses (b), (c), (d) or (e) above, each donee, transferee or pledgee shall sign and deliver a lock-up agreement substantially in the form of this letter, (B) in the case of any transfer or distribution pursuant to clauses (a), (b) and (c), no filing by any party (donor, donee, transferor or transferee) under the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above), (C) in the case of clause (f) above, that any shares of Parent Common Stock received upon such exercise, vesting, conversion, exchange or settlement shall be subject to all of the restrictions set forth in this agreement, (D) in the case of clause (h) above such plan does not provide for the transfer of shares of Parent Common Stock during the Restricted Period and the entry into such plan is not publicly disclosed, including in any filing under the Exchange Act, during the Restricted Period and, (E) any filing or announcement by Parent or the undersigned relating to a transfer or distribution under clauses (d), (e), (f) or (g) above shall briefly note the applicable circumstances that cause such clause to apply and explain that the filing or announcement relates solely to transfers or distributions falling within the category described in the relevant clause.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Parent, NextDecade, and the undersigned agree that fifty percent (50%) of the Parent Common Stock issued by Parent to the undersigned at Closing shall be automatically released from this lock-up agreement prior to the expiration of the Restricted Period on the first day following the date on which the closing price of Parent Common Stock equals or exceeds $12.50 per share (as adjusted for share splits, share dividends, reorganizations and recapitalizations or similar events) for any twenty (20) trading days within any thirty (30) trading-day period commencing after the Closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Related Securities</font>&#8221; shall mean any options or warrants or other rights to acquire Parent Common Stock (including any Contingent Shares issued to the undersigned within the Restricted Period) or any securities exchangeable or exercisable for or convertible into Parent Common Stock, or to acquire other securities or rights ultimately exchangeable or exercisable for, or convertible into, Parent Common Stock.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Change of Control</font>&#8221; shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of Parent&#8217;s voting securities if, after such transfer, such person or group of affiliated persons would hold more than fifty percent (50%) of the outstanding voting securities of Parent (or the surviving entity).</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Public Offering</font>&#8221; means an underwritten public offering of registrable securities pursuant to an effective registration statement under the Securities Act, other than pursuant to a registration statement on Form S-4 or Form S-8 or any similar or successor form.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned understands that Parent and NextDecade are relying upon this agreement in proceeding toward consummation of the Merger.&#160; The undersigned further understands that this agreement is irrevocable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Notwithstanding anything herein to the contrary, this agreement shall be of no further force or effect and the undersigned shall be released from all obligations under this agreement upon the earlier of (i) the termination of the Merger Agreement and (ii) the first business day following the expiration of the Restricted Period.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">This agreement shall be legally binding on the undersigned and on the undersigned&#8217;s successors and permitted assigns and shall be governed by and construed in accordance with the internal law of the State of Delaware regardless of the law that might otherwise govern under applicable principles of conflicts of law thereof.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned irrevocably consents to the exclusive jurisdiction and venue of the courts of the State of Delaware or the federal courts located in the State of Delaware in connection with any matter based upon or arising out of this agreement, agrees that process may be served upon it in any manner authorized by the laws of the State of Delaware and waives and covenants not to assert or plead any objection which it might otherwise have to such manner of service of process. The undersigned waives, and shall not assert as a defense in any legal dispute, that (a) it is not personally subject to the jurisdiction of the above named courts for any reason, (b) such Legal Proceeding may not be brought or is not maintainable in such court, (c) its property is exempt or immune from execution, (d) such Legal Proceeding is brought in an inconvenient forum or (e) the venue of such Legal Proceeding is improper.&#160; THE UNDERSIGNED UNCONDITIONALLY WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT.&#160; IF THE SUBJECT MATTER OF ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, THE UNDERSIGNED SHALL NOT ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT.&#160; FURTHERMORE, THE UNDERSIGNED SHALL NOT SEEK TO CONSOLIDATE ANY SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">IN WITNESS WHEREOF, the undersigned has caused this agreement to be executed as of the date first written above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Very truly yours,</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York European Distressed Credit Fund II, L.P.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">/s/ John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Name: John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Its: Chief Financial Officer</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Address</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">[Signature Page to Lock-Up Agreement]</div>

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<DOCUMENT>
<TYPE>EX-10.6
<SEQUENCE>6
<FILENAME>ex10_6.htm
<DESCRIPTION>EXHIBIT 10.6
<TEXT>
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<div style="FONT-WEIGHT: bold; TEXT-ALIGN: right">Exhibit 10.6</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">LOCK-UP AGREEMENT</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Harmony Merger Corp.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">777 Third Avenue, 37th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10017</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">NextDecade, LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">3 Waterway Square Place, Suite 400</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Woodlands, Texas 77380</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt">Ladies and Gentlemen:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Reference is made to that certain Agreement and Plan of Merger (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Agreement</font>&#8221;), dated April 17, 2017, by and among Harmony Merger Corp., a Delaware corporation (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Parent</font>&#8221;), Harmony Merger Sub, LLC, a Delaware limited liability company and wholly-owned subsidiary of the Parent (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Sub</font>&#8221;), NextDecade, LLC, a Delaware limited liability company (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">NextDecade</font>&#8221;) and the other signatories parties thereto. Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in the Merger Agreement.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">To induce the parties to consummate the Transactions, the undersigned hereby agrees that it will not, during the period commencing on the date hereof and ending one hundred and eighty (180)&#160; days after the date hereof (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Restricted Period</font>), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Parent Common Stock beneficially owned (as such term is used in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Exchange Act</font>&#8221;)) by the undersigned or any other Related Securities (as defined below) so owned or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the shares of Parent Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of shares of Parent Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (a) transactions relating to shares of Parent Common Stock or Related Securities acquired in open market transactions after the Merger, (b) if the undersigned is a corporation, partnership, limited liability company or other business entity, a disposition, transfer or distribution of shares of Parent Common Stock or Related Securities to its affiliates, limited or general partners, members, stockholders or other equity holders of the undersigned, (c) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities as bona fide gifts or to a trust the beneficiaries of which are exclusively the undersigned or immediate family members of the undersigned, (d) transactions relating to shares of Parent Common Stock or Related Securities by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, (e) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities by will or intestacy, (f) the exercise of options, stock appreciation rights or warrants to purchase shares of Parent Common Stock or (g) transfers, sales, tenders or other dispositions of Parent Common Stock to a bona fide third party pursuant to a tender offer for securities of Parent or any merger, consolidation or other business combination involving a Change of Control of Parent that, in each case with respect to this clause (g), has been approved by the board of directors of Parent (including, without limitation, entering into any lock-up, voting or similar agreement pursuant to which the undersigned may agree to transfer, sell, tender or otherwise dispose of Parent Common Stock in connection with any such transaction, or vote any Parent Common Stock in favor of any such transaction); <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that all shares of Parent Common Stock subject to this agreement that are not so transferred, sold, tendered or otherwise disposed of remain subject to this agreement; and <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font>,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic"> further</font>, that it shall be a condition of transfer, sale, tender or other disposition that if such tender offer or other transaction is not completed, any Parent Common Stock subject to this agreement shall remain subject to the restrictions herein or (h) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer, sale or any other disposition of shares of Parent Common Stock; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that (A) in the case of any transfer, distribution or sale pursuant to clauses (b), (c), (d) or (e) above, each donee, transferee or pledgee shall sign and deliver a lock-up agreement substantially in the form of this letter, (B) in the case of any transfer or distribution pursuant to clauses (a), (b) and (c), no filing by any party (donor, donee, transferor or transferee) under the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above), (C) in the case of clause (f) above, that any shares of Parent Common Stock received upon such exercise, vesting, conversion, exchange or settlement shall be subject to all of the restrictions set forth in this agreement, (D) in the case of clause (h) above such plan does not provide for the transfer of shares of Parent Common Stock during the Restricted Period and the entry into such plan is not publicly disclosed, including in any filing under the Exchange Act, during the Restricted Period and, (E) any filing or announcement by Parent or the undersigned relating to a transfer or distribution under clauses (d), (e), (f) or (g) above shall briefly note the applicable circumstances that cause such clause to apply and explain that the filing or announcement relates solely to transfers or distributions falling within the category described in the relevant clause.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Parent, NextDecade, and the undersigned agree that fifty percent (50%) of the Parent Common Stock issued by Parent to the undersigned at Closing shall be automatically released from this lock-up agreement prior to the expiration of the Restricted Period on the first day following the date on which the closing price of Parent Common Stock equals or exceeds $12.50 per share (as adjusted for share splits, share dividends, reorganizations and recapitalizations or similar events) for any twenty (20) trading days within any thirty (30) trading-day period commencing after the Closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Related Securities</font>&#8221; shall mean any options or warrants or other rights to acquire Parent Common Stock (including any Contingent Shares issued to the undersigned within the Restricted Period) or any securities exchangeable or exercisable for or convertible into Parent Common Stock, or to acquire other securities or rights ultimately exchangeable or exercisable for, or convertible into, Parent Common Stock.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Change of Control</font>&#8221; shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of Parent&#8217;s voting securities if, after such transfer, such person or group of affiliated persons would hold more than fifty percent (50%) of the outstanding voting securities of Parent (or the surviving entity).</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Public Offering</font>&#8221; means an underwritten public offering of registrable securities pursuant to an effective registration statement under the Securities Act, other than pursuant to a registration statement on Form S-4 or Form S-8 or any similar or successor form.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned understands that Parent and NextDecade are relying upon this agreement in proceeding toward consummation of the Merger.&#160; The undersigned further understands that this agreement is irrevocable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Notwithstanding anything herein to the contrary, this agreement shall be of no further force or effect and the undersigned shall be released from all obligations under this agreement upon the earlier of (i) the termination of the Merger Agreement and (ii) the first business day following the expiration of the Restricted Period.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">This agreement shall be legally binding on the undersigned and on the undersigned&#8217;s successors and permitted assigns and shall be governed by and construed in accordance with the internal law of the State of Delaware regardless of the law that might otherwise govern under applicable principles of conflicts of law thereof.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned irrevocably consents to the exclusive jurisdiction and venue of the courts of the State of Delaware or the federal courts located in the State of Delaware in connection with any matter based upon or arising out of this agreement, agrees that process may be served upon it in any manner authorized by the laws of the State of Delaware and waives and covenants not to assert or plead any objection which it might otherwise have to such manner of service of process. The undersigned waives, and shall not assert as a defense in any legal dispute, that (a) it is not personally subject to the jurisdiction of the above named courts for any reason, (b) such Legal Proceeding may not be brought or is not maintainable in such court, (c) its property is exempt or immune from execution, (d) such Legal Proceeding is brought in an inconvenient forum or (e) the venue of such Legal Proceeding is improper.&#160; THE UNDERSIGNED UNCONDITIONALLY WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT.&#160; IF THE SUBJECT MATTER OF ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, THE UNDERSIGNED SHALL NOT ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT.&#160; FURTHERMORE, THE UNDERSIGNED SHALL NOT SEEK TO CONSOLIDATE ANY SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">IN WITNESS WHEREOF, the undersigned has caused this agreement to be executed as of the date first written above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Very truly yours,</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Multi-Strategy Master Fund, L.P.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">/s/ John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Name: John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Its: Chief Financial Officer</div>
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<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">[Signature Page to Lock-Up Agreement]</div>

<br>
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<div>&#160;</div>
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<DOCUMENT>
<TYPE>EX-10.7
<SEQUENCE>7
<FILENAME>ex10_7.htm
<DESCRIPTION>EXHIBIT 10.7
<TEXT>
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    Copyright 1995 - 2017 Summit Financial Printing, LLC.  All rights reserved.-->
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<div style="FONT-WEIGHT: bold; TEXT-ALIGN: right">Exhibit 10.7</div>

<div>&#160;</div>

<div>
<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">LOCK-UP AGREEMENT</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Harmony Merger Corp.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">777 Third Avenue, 37th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10017</div>

<div><br>
</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">NextDecade, LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">3 Waterway Square Place, Suite 400</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Woodlands, Texas 77380</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt">Ladies and Gentlemen:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Reference is made to that certain Agreement and Plan of Merger (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Agreement</font>&#8221;), dated April 17, 2017, by and among Harmony Merger Corp., a Delaware corporation (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Parent</font>&#8221;), Harmony Merger Sub, LLC, a Delaware limited liability company and wholly-owned subsidiary of the Parent (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Sub</font>&#8221;), NextDecade, LLC, a Delaware limited liability company (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">NextDecade</font>&#8221;) and the other signatories parties thereto. Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in the Merger Agreement.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">To induce the parties to consummate the Transactions, the undersigned hereby agrees that it will not, during the period commencing on the date hereof and ending one hundred and eighty (180)&#160; days after the date hereof (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Restricted Period</font>), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Parent Common Stock beneficially owned (as such term is used in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Exchange Act</font>&#8221;)) by the undersigned or any other Related Securities (as defined below) so owned or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the shares of Parent Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of shares of Parent Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (a) transactions relating to shares of Parent Common Stock or Related Securities acquired in open market transactions after the Merger, (b) if the undersigned is a corporation, partnership, limited liability company or other business entity, a disposition, transfer or distribution of shares of Parent Common Stock or Related Securities to its affiliates, limited or general partners, members, stockholders or other equity holders of the undersigned, (c) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities as bona fide gifts or to a trust the beneficiaries of which are exclusively the undersigned or immediate family members of the undersigned, (d) transactions relating to shares of Parent Common Stock or Related Securities by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, (e) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities by will or intestacy, (f) the exercise of options, stock appreciation rights or warrants to purchase shares of Parent Common Stock or (g) transfers, sales, tenders or other dispositions of Parent Common Stock to a bona fide third party pursuant to a tender offer for securities of Parent or any merger, consolidation or other business combination involving a Change of Control of Parent that, in each case with respect to this clause (g), has been approved by the board of directors of Parent (including, without limitation, entering into any lock-up, voting or similar agreement pursuant to which the undersigned may agree to transfer, sell, tender or otherwise dispose of Parent Common Stock in connection with any such transaction, or vote any Parent Common Stock in favor of any such transaction); <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that all shares of Parent Common Stock subject to this agreement that are not so transferred, sold, tendered or otherwise disposed of remain subject to this agreement; and <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font>,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic"> further</font>, that it shall be a condition of transfer, sale, tender or other disposition that if such tender offer or other transaction is not completed, any Parent Common Stock subject to this agreement shall remain subject to the restrictions herein or (h) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer, sale or any other disposition of shares of Parent Common Stock; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that (A) in the case of any transfer, distribution or sale pursuant to clauses (b), (c), (d) or (e) above, each donee, transferee or pledgee shall sign and deliver a lock-up agreement substantially in the form of this letter, (B) in the case of any transfer or distribution pursuant to clauses (a), (b) and (c), no filing by any party (donor, donee, transferor or transferee) under the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above), (C) in the case of clause (f) above, that any shares of Parent Common Stock received upon such exercise, vesting, conversion, exchange or settlement shall be subject to all of the restrictions set forth in this agreement, (D) in the case of clause (h) above such plan does not provide for the transfer of shares of Parent Common Stock during the Restricted Period and the entry into such plan is not publicly disclosed, including in any filing under the Exchange Act, during the Restricted Period and, (E) any filing or announcement by Parent or the undersigned relating to a transfer or distribution under clauses (d), (e), (f) or (g) above shall briefly note the applicable circumstances that cause such clause to apply and explain that the filing or announcement relates solely to transfers or distributions falling within the category described in the relevant clause.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Parent, NextDecade, and the undersigned agree that fifty percent (50%) of the Parent Common Stock issued by Parent to the undersigned at Closing shall be automatically released from this lock-up agreement prior to the expiration of the Restricted Period on the first day following the date on which the closing price of Parent Common Stock equals or exceeds $12.50 per share (as adjusted for share splits, share dividends, reorganizations and recapitalizations or similar events) for any twenty (20) trading days within any thirty (30) trading-day period commencing after the Closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Related Securities</font>&#8221; shall mean any options or warrants or other rights to acquire Parent Common Stock (including any Contingent Shares issued to the undersigned within the Restricted Period) or any securities exchangeable or exercisable for or convertible into Parent Common Stock, or to acquire other securities or rights ultimately exchangeable or exercisable for, or convertible into, Parent Common Stock.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Change of Control</font>&#8221; shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of Parent&#8217;s voting securities if, after such transfer, such person or group of affiliated persons would hold more than fifty percent (50%) of the outstanding voting securities of Parent (or the surviving entity).</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Public Offering</font>&#8221; means an underwritten public offering of registrable securities pursuant to an effective registration statement under the Securities Act, other than pursuant to a registration statement on Form S-4 or Form S-8 or any similar or successor form.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned understands that Parent and NextDecade are relying upon this agreement in proceeding toward consummation of the Merger.&#160; The undersigned further understands that this agreement is irrevocable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Notwithstanding anything herein to the contrary, this agreement shall be of no further force or effect and the undersigned shall be released from all obligations under this agreement upon the earlier of (i) the termination of the Merger Agreement and (ii) the first business day following the expiration of the Restricted Period.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">This agreement shall be legally binding on the undersigned and on the undersigned&#8217;s successors and permitted assigns and shall be governed by and construed in accordance with the internal law of the State of Delaware regardless of the law that might otherwise govern under applicable principles of conflicts of law thereof.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned irrevocably consents to the exclusive jurisdiction and venue of the courts of the State of Delaware or the federal courts located in the State of Delaware in connection with any matter based upon or arising out of this agreement, agrees that process may be served upon it in any manner authorized by the laws of the State of Delaware and waives and covenants not to assert or plead any objection which it might otherwise have to such manner of service of process. The undersigned waives, and shall not assert as a defense in any legal dispute, that (a) it is not personally subject to the jurisdiction of the above named courts for any reason, (b) such Legal Proceeding may not be brought or is not maintainable in such court, (c) its property is exempt or immune from execution, (d) such Legal Proceeding is brought in an inconvenient forum or (e) the venue of such Legal Proceeding is improper.&#160; THE UNDERSIGNED UNCONDITIONALLY WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT.&#160; IF THE SUBJECT MATTER OF ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, THE UNDERSIGNED SHALL NOT ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT.&#160; FURTHERMORE, THE UNDERSIGNED SHALL NOT SEEK TO CONSOLIDATE ANY SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">IN WITNESS WHEREOF, the undersigned has caused this agreement to be executed as of the date first written above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Very truly yours,</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Select Investors Master Fund, L.P.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">/s/ John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Name: John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Its: Chief Financial Officer</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">[Signature Page to Lock-Up Agreement]</div>

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<DESCRIPTION>EXHIBIT 10.8
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<div style="FONT-WEIGHT: bold; TEXT-ALIGN: right">Exhibit 10.8</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">LOCK-UP AGREEMENT</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Harmony Merger Corp.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">777 Third Avenue, 37th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">NextDecade, LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">3 Waterway Square Place, Suite 400</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Woodlands, Texas 77380</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt">Ladies and Gentlemen:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Reference is made to that certain Agreement and Plan of Merger (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Agreement</font>&#8221;), dated April 17, 2017, by and among Harmony Merger Corp., a Delaware corporation (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Parent</font>&#8221;), Harmony Merger Sub, LLC, a Delaware limited liability company and wholly-owned subsidiary of the Parent (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Sub</font>&#8221;), NextDecade, LLC, a Delaware limited liability company (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">NextDecade</font>&#8221;) and the other signatories parties thereto. Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in the Merger Agreement.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">To induce the parties to consummate the Transactions, the undersigned hereby agrees that it will not, during the period commencing on the date hereof and ending one hundred and eighty (180)&#160; days after the date hereof (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Restricted Period</font>), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Parent Common Stock beneficially owned (as such term is used in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Exchange Act</font>&#8221;)) by the undersigned or any other Related Securities (as defined below) so owned or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the shares of Parent Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of shares of Parent Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (a) transactions relating to shares of Parent Common Stock or Related Securities acquired in open market transactions after the Merger, (b) if the undersigned is a corporation, partnership, limited liability company or other business entity, a disposition, transfer or distribution of shares of Parent Common Stock or Related Securities to its affiliates, limited or general partners, members, stockholders or other equity holders of the undersigned, (c) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities as bona fide gifts or to a trust the beneficiaries of which are exclusively the undersigned or immediate family members of the undersigned, (d) transactions relating to shares of Parent Common Stock or Related Securities by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, (e) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities by will or intestacy, (f) the exercise of options, stock appreciation rights or warrants to purchase shares of Parent Common Stock or (g) transfers, sales, tenders or other dispositions of Parent Common Stock to a bona fide third party pursuant to a tender offer for securities of Parent or any merger, consolidation or other business combination involving a Change of Control of Parent that, in each case with respect to this clause (g), has been approved by the board of directors of Parent (including, without limitation, entering into any lock-up, voting or similar agreement pursuant to which the undersigned may agree to transfer, sell, tender or otherwise dispose of Parent Common Stock in connection with any such transaction, or vote any Parent Common Stock in favor of any such transaction); <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that all shares of Parent Common Stock subject to this agreement that are not so transferred, sold, tendered or otherwise disposed of remain subject to this agreement; and <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font>,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic"> further</font>, that it shall be a condition of transfer, sale, tender or other disposition that if such tender offer or other transaction is not completed, any Parent Common Stock subject to this agreement shall remain subject to the restrictions herein or (h) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer, sale or any other disposition of shares of Parent Common Stock; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that (A) in the case of any transfer, distribution or sale pursuant to clauses (b), (c), (d) or (e) above, each donee, transferee or pledgee shall sign and deliver a lock-up agreement substantially in the form of this letter, (B) in the case of any transfer or distribution pursuant to clauses (a), (b) and (c), no filing by any party (donor, donee, transferor or transferee) under the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above), (C) in the case of clause (f) above, that any shares of Parent Common Stock received upon such exercise, vesting, conversion, exchange or settlement shall be subject to all of the restrictions set forth in this agreement, (D) in the case of clause (h) above such plan does not provide for the transfer of shares of Parent Common Stock during the Restricted Period and the entry into such plan is not publicly disclosed, including in any filing under the Exchange Act, during the Restricted Period and, (E) any filing or announcement by Parent or the undersigned relating to a transfer or distribution under clauses (d), (e), (f) or (g) above shall briefly note the applicable circumstances that cause such clause to apply and explain that the filing or announcement relates solely to transfers or distributions falling within the category described in the relevant clause.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Parent, NextDecade, and the undersigned agree that fifty percent (50%) of the Parent Common Stock issued by Parent to the undersigned at Closing shall be automatically released from this lock-up agreement prior to the expiration of the Restricted Period on the first day following the date on which the closing price of Parent Common Stock equals or exceeds $12.50 per share (as adjusted for share splits, share dividends, reorganizations and recapitalizations or similar events) for any twenty (20) trading days within any thirty (30) trading-day period commencing after the Closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Related Securities</font>&#8221; shall mean any options or warrants or other rights to acquire Parent Common Stock (including any Contingent Shares issued to the undersigned within the Restricted Period) or any securities exchangeable or exercisable for or convertible into Parent Common Stock, or to acquire other securities or rights ultimately exchangeable or exercisable for, or convertible into, Parent Common Stock.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Change of Control</font>&#8221; shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of Parent&#8217;s voting securities if, after such transfer, such person or group of affiliated persons would hold more than fifty percent (50%) of the outstanding voting securities of Parent (or the surviving entity).</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Public Offering</font>&#8221; means an underwritten public offering of registrable securities pursuant to an effective registration statement under the Securities Act, other than pursuant to a registration statement on Form S-4 or Form S-8 or any similar or successor form.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned understands that Parent and NextDecade are relying upon this agreement in proceeding toward consummation of the Merger.&#160; The undersigned further understands that this agreement is irrevocable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Notwithstanding anything herein to the contrary, this agreement shall be of no further force or effect and the undersigned shall be released from all obligations under this agreement upon the earlier of (i) the termination of the Merger Agreement and (ii) the first business day following the expiration of the Restricted Period.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">This agreement shall be legally binding on the undersigned and on the undersigned&#8217;s successors and permitted assigns and shall be governed by and construed in accordance with the internal law of the State of Delaware regardless of the law that might otherwise govern under applicable principles of conflicts of law thereof.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned irrevocably consents to the exclusive jurisdiction and venue of the courts of the State of Delaware or the federal courts located in the State of Delaware in connection with any matter based upon or arising out of this agreement, agrees that process may be served upon it in any manner authorized by the laws of the State of Delaware and waives and covenants not to assert or plead any objection which it might otherwise have to such manner of service of process. The undersigned waives, and shall not assert as a defense in any legal dispute, that (a) it is not personally subject to the jurisdiction of the above named courts for any reason, (b) such Legal Proceeding may not be brought or is not maintainable in such court, (c) its property is exempt or immune from execution, (d) such Legal Proceeding is brought in an inconvenient forum or (e) the venue of such Legal Proceeding is improper.&#160; THE UNDERSIGNED UNCONDITIONALLY WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT.&#160; IF THE SUBJECT MATTER OF ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, THE UNDERSIGNED SHALL NOT ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT.&#160; FURTHERMORE, THE UNDERSIGNED SHALL NOT SEEK TO CONSOLIDATE ANY SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">IN WITNESS WHEREOF, the undersigned has caused this agreement to be executed as of the date first written above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Very truly yours,</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">York Select Master Fund, L.P.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">/s/ John J. Fosina</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">[Signature Page to Lock-Up Agreement]<br>
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<DOCUMENT>
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<DESCRIPTION>EXHIBIT 10.9
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: right">Exhibit 10.9</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold; TEXT-ALIGN: center">LOCK-UP AGREEMENT</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">July 24, 2017</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Harmony Merger Corp.</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">777 Third Avenue, 37th Floor</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">New York, New York 10017</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">NextDecade, LLC</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">3 Waterway Square Place, Suite 400</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">The Woodlands, Texas 77380</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt">Ladies and Gentlemen:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Reference is made to that certain Agreement and Plan of Merger (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Agreement</font>&#8221;), dated April 17, 2017, by and among Harmony Merger Corp., a Delaware corporation (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Parent</font>&#8221;), Harmony Merger Sub, LLC, a Delaware limited liability company and wholly-owned subsidiary of the Parent (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Merger Sub</font>&#8221;), NextDecade, LLC, a Delaware limited liability company (&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">NextDecade</font>&#8221;) and the other signatories parties thereto. Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to them in the Merger Agreement.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">To induce the parties to consummate the Transactions, the undersigned hereby agrees that it will not, during the period commencing on the date hereof and ending one hundred and eighty (180)&#160; days after the date hereof (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Restricted Period</font>), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Parent Common Stock beneficially owned (as such term is used in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the &#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Exchange Act</font>&#8221;)) by the undersigned or any other Related Securities (as defined below) so owned or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the shares of Parent Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of shares of Parent Common Stock or such other securities, in cash or otherwise. The foregoing sentence shall not apply to (a) transactions relating to shares of Parent Common Stock or Related Securities acquired in open market transactions after the Merger, (b) if the undersigned is a corporation, partnership, limited liability company or other business entity, a disposition, transfer or distribution of shares of Parent Common Stock or Related Securities to its affiliates, limited or general partners, members, stockholders or other equity holders of the undersigned, (c) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities as bona fide gifts or to a trust the beneficiaries of which are exclusively the undersigned or immediate family members of the undersigned, (d) transactions relating to shares of Parent Common Stock or Related Securities by operation of law pursuant to a qualified domestic order or in connection with a divorce settlement, (e) if the undersigned is an individual, transfers of shares of Parent Common Stock or Related Securities by will or intestacy, (f) the exercise of options, stock appreciation rights or warrants to purchase shares of Parent Common Stock or (g) transfers, sales, tenders or other dispositions of Parent Common Stock to a bona fide third party pursuant to a tender offer for securities of Parent or any merger, consolidation or other business combination involving a Change of Control of Parent that, in each case with respect to this clause (g), has been approved by the board of directors of Parent (including, without limitation, entering into any lock-up, voting or similar agreement pursuant to which the undersigned may agree to transfer, sell, tender or otherwise dispose of Parent Common Stock in connection with any such transaction, or vote any Parent Common Stock in favor of any such transaction); <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that all shares of Parent Common Stock subject to this agreement that are not so transferred, sold, tendered or otherwise disposed of remain subject to this agreement; and <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font>,<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic"> further</font>, that it shall be a condition of transfer, sale, tender or other disposition that if such tender offer or other transaction is not completed, any Parent Common Stock subject to this agreement shall remain subject to the restrictions herein or (h) the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer, sale or any other disposition of shares of Parent Common Stock; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-STYLE: italic">provided</font> that (A) in the case of any transfer, distribution or sale pursuant to clauses (b), (c), (d) or (e) above, each donee, transferee or pledgee shall sign and deliver a lock-up agreement substantially in the form of this letter, (B) in the case of any transfer or distribution pursuant to clauses (a), (b) and (c), no filing by any party (donor, donee, transferor or transferee) under the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or distribution (other than a filing on a Form 5 made after the expiration of the Restricted Period referred to above), (C) in the case of clause (f) above, that any shares of Parent Common Stock received upon such exercise, vesting, conversion, exchange or settlement shall be subject to all of the restrictions set forth in this agreement, (D) in the case of clause (h) above such plan does not provide for the transfer of shares of Parent Common Stock during the Restricted Period and the entry into such plan is not publicly disclosed, including in any filing under the Exchange Act, during the Restricted Period and, (E) any filing or announcement by Parent or the undersigned relating to a transfer or distribution under clauses (d), (e), (f) or (g) above shall briefly note the applicable circumstances that cause such clause to apply and explain that the filing or announcement relates solely to transfers or distributions falling within the category described in the relevant clause.</div>

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<div style="TEXT-ALIGN: left; TEXT-INDENT: 36pt">Parent, NextDecade, and the undersigned agree that fifty percent (50%) of the Parent Common Stock issued by Parent to the undersigned at Closing shall be automatically released from this lock-up agreement prior to the expiration of the Restricted Period on the first day following the date on which the closing price of Parent Common Stock equals or exceeds $12.50 per share (as adjusted for share splits, share dividends, reorganizations and recapitalizations or similar events) for any twenty (20) trading days within any thirty (30) trading-day period commencing after the Closing.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Related Securities</font>&#8221; shall mean any options or warrants or other rights to acquire Parent Common Stock (including any Contingent Shares issued to the undersigned within the Restricted Period) or any securities exchangeable or exercisable for or convertible into Parent Common Stock, or to acquire other securities or rights ultimately exchangeable or exercisable for, or convertible into, Parent Common Stock.</div>

<div>&#160;</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Change of Control</font>&#8221; shall mean the transfer (whether by tender offer, merger, consolidation or other similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of Parent&#8217;s voting securities if, after such transfer, such person or group of affiliated persons would hold more than fifty percent (50%) of the outstanding voting securities of Parent (or the surviving entity).</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">&#8220;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; FONT-WEIGHT: bold">Public Offering</font>&#8221; means an underwritten public offering of registrable securities pursuant to an effective registration statement under the Securities Act, other than pursuant to a registration statement on Form S-4 or Form S-8 or any similar or successor form.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned understands that Parent and NextDecade are relying upon this agreement in proceeding toward consummation of the Merger.&#160; The undersigned further understands that this agreement is irrevocable.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">Notwithstanding anything herein to the contrary, this agreement shall be of no further force or effect and the undersigned shall be released from all obligations under this agreement upon the earlier of (i) the termination of the Merger Agreement and (ii) the first business day following the expiration of the Restricted Period.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">This agreement shall be legally binding on the undersigned and on the undersigned&#8217;s successors and permitted assigns and shall be governed by and construed in accordance with the internal law of the State of Delaware regardless of the law that might otherwise govern under applicable principles of conflicts of law thereof.</div>

<div>&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">The undersigned irrevocably consents to the exclusive jurisdiction and venue of the courts of the State of Delaware or the federal courts located in the State of Delaware in connection with any matter based upon or arising out of this agreement, agrees that process may be served upon it in any manner authorized by the laws of the State of Delaware and waives and covenants not to assert or plead any objection which it might otherwise have to such manner of service of process. The undersigned waives, and shall not assert as a defense in any legal dispute, that (a) it is not personally subject to the jurisdiction of the above named courts for any reason, (b) such Legal Proceeding may not be brought or is not maintainable in such court, (c) its property is exempt or immune from execution, (d) such Legal Proceeding is brought in an inconvenient forum or (e) the venue of such Legal Proceeding is improper.&#160; THE UNDERSIGNED UNCONDITIONALLY WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT.&#160; IF THE SUBJECT MATTER OF ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, THE UNDERSIGNED SHALL NOT ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT.&#160; FURTHERMORE, THE UNDERSIGNED SHALL NOT SEEK TO CONSOLIDATE ANY SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left; TEXT-INDENT: 36pt">IN WITNESS WHEREOF, the undersigned has caused this agreement to be executed as of the date first written above.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: left">Very truly yours,</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; TEXT-ALIGN: center">[Signature Page to Lock-Up Agreement]</div>

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