<SEC-DOCUMENT>0001213900-21-009641.txt : 20210216
<SEC-HEADER>0001213900-21-009641.hdr.sgml : 20210216
<ACCEPTANCE-DATETIME>20210216163033
ACCESSION NUMBER:		0001213900-21-009641
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20210216
DATE AS OF CHANGE:		20210216
GROUP MEMBERS:		CHRISTOPHER G. CARTER
GROUP MEMBERS:		G.F.W. ENERGY XII, L.P.
GROUP MEMBERS:		GFW XII, L.L.C.
GROUP MEMBERS:		JAMES E. MUTRIE
GROUP MEMBERS:		NGP ENERGY CAPITAL MANAGEMENT, L.L.C.
GROUP MEMBERS:		NGP ETP III INVESTMENTS, LLC
GROUP MEMBERS:		NGP NATURAL RESOURCES XII, L.P.
GROUP MEMBERS:		NGP XII HOLDINGS GP, L.L.C.
GROUP MEMBERS:		NGP XII US HOLDINGS, L.P.
GROUP MEMBERS:		SAM STOUTNER
GROUP MEMBERS:		SCOTT GIESELMAN
GROUP MEMBERS:		SCOTT K. MCNEILL

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Switchback Energy Acquisition Corp
		CENTRAL INDEX KEY:			0001777393
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS TRANSPORTATION EQUIPMENT [3790]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91090
		FILM NUMBER:		21639245

	BUSINESS ADDRESS:	
		STREET 1:		5949 SHERRY LANE
		STREET 2:		SUITE 1010
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225
		BUSINESS PHONE:		(972) 514-9535

	MAIL ADDRESS:	
		STREET 1:		5949 SHERRY LANE
		STREET 2:		SUITE 1010
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NGP Switchback, LLC
		CENTRAL INDEX KEY:			0001782416
		IRS NUMBER:				841741401
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		5949 SHERRY LANE
		STREET 2:		SUITE1010
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225
		BUSINESS PHONE:		(972) 432-1440

	MAIL ADDRESS:	
		STREET 1:		5949 SHERRY LANE
		STREET 2:		SUITE1010
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>ea135728-13ga1ngp_switchback.htm
<DESCRIPTION>SCHEDULE 13G/A
<TEXT>
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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0pt; margin-bottom: 0pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">SCHEDULE 13G/A</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">Under the Securities Exchange Act of
1934<BR>
(Amendment No. 1)*</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>SWITCHBACK ENERGY ACQUISITION CORPORATION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>(Name of Issuer)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Class A Common Stock, par value $0.0001
per share</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>(Title of Class of Securities)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>87105M 102</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>(CUSIP Number)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>December 31, 2020</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>(Date of Event Which Requires Filing
of this Statement)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">&#9744;</TD><TD>Rule 13d-1(b)</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">&#9744;</TD><TD>Rule 13d-1(c)</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">&#9746;</TD><TD>Rule 13d-1(d)</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">*</TD><TD>The remainder of this cover page shall be filled out for a reporting person&rsquo;s initial filing on this form with respect
to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided
in a prior cover page.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">The information required in the remainder
of this cover page shall not be deemed to be &ldquo;filed&rdquo; for the purpose of Section 18 of the Securities Exchange Act of
1934 (&ldquo;Act&rdquo;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions
of the Act (however, see the Notes).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in"></P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>


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    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Value: 2; Name: PageNo -->2<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NGP Switchback, LLC</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OO (Limited Liability Company)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->3<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Scott K. McNeill</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United States</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IN</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 3 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->4<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">James E. Mutrie</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United States</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IN</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 4 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->5<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Christopher G. Carter</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United States</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IN</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 5 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->6<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Scott Gieselman</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United States</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IN</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 6 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->7<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sam Stoutner</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United States</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IN</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 7 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->8<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NGP ETP III Investments, LLC</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OO (Limited Liability Company)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 8 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->9<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NGP XII US Holdings, L.P.</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PN (Limited Partnership)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 9 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->10<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NGP XII Holdings GP, L.L.C.</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OO (Limited Liability Company)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 10 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->11<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NGP Natural Resources XII, L.P.</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PN (Limited Partnership)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 11 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->12<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">G.F.W. Energy XII, L.P.</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PN (Limited Partnership)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 12 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->13<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">GFW XII, L.L.C.</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OO (Limited Liability Company)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 13 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->14<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 9%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>1</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 91%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NGP Energy Capital Management, L.L.C.</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>2</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the Appropriate Box if a Member of a Group</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a):&#9;&#9744;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b):&#9;&#9746;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>3</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC Use Only</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>4</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; vertical-align: bottom; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Texas</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD ROWSPAN="4" STYLE="width: 17%; border: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center">Number of Shares Beneficially Owned by Each Reporting Person with</TD>
    <TD STYLE="width: 9%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>5</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 74%; border-top: Black 1.5pt solid; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>6</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>7</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>8</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; width: 9%; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>9</B></FONT></TD>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; vertical-align: bottom; width: 91%; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">7,732,941 (1)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>10</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (9) Excludes Certain Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#9746; (2)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>11</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">19.7% (3)</P></TD></TR>
<TR>
    <TD STYLE="border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; border-left: Black 1.5pt solid; padding-right: 5.4pt; padding-bottom: 1.5pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>12</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; border-right: Black 1.5pt solid; border-bottom: Black 1.5pt solid; padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OO (Limited Liability Company)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD>The shares reported above are shares of the Issuer&rsquo;s
Class B common stock that are convertible into shares of the Issuer&rsquo;s Class A common stock and have no expiration date,
as described under the heading &ldquo;Description of Securities&mdash;Founder Shares&rdquo; in the Issuer&rsquo;s registration
statement on Form S-1 (File No. 333-232501).</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(2)</TD><TD>Does not include 5,521,568 shares of the Issuer&rsquo;s
Class A common stock which may be purchased by exercising warrants that are not presently exercisable.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.25in; text-align: left">(3)</TD><TD>The percentage set forth in Row 11 of this Cover Page
is based on the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported in the Issuer&rsquo;s
Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 14 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->15<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 1(a).</TD><TD>NAME OF ISSUER</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Switchback Energy Acquisition Corporation
(the &ldquo;<U>Issuer</U>&rdquo;)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 1(b).</TD><TD>ADDRESS OF ISSUER&rsquo;S PRINCIPAL EXECUTIVE OFFICES</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">5949 Sherry Lane, Suite 1010, Dallas, TX
75225</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 2(a).</TD><TD>NAME OF PERSON FILING</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">This Schedule 13G is being jointly filed,
pursuant to a Joint Filing Agreement attached hereto as <A HREF="ea135728ex99-1ngp_switchback.htm">Exhibit 99.1</A>, by the following entities and persons, all of whom are together
referred to herein as the &ldquo;Reporting Persons&rdquo;:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(i)</TD><TD>NGP Switchback, LLC, a Delaware limited liability company;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(ii)</TD><TD>Scott K. McNeill;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(iii)</TD><TD>James E. Mutrie;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(iv)</TD><TD>Christopher G. Carter;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(v)</TD><TD>Scott Gieselman;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(vi)</TD><TD>Sam Stoutner;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in; text-align: left">(vii)</TD><TD>NGP ETP III Investments LLC, a Delaware limited liability
company;</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(viii)</TD><TD>NGP XII US Holdings, L.P., a Delaware limited partnership;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(ix)</TD><TD>NGP XII Holdings GP, L.L.C., a Delaware limited liability company;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(x)</TD><TD>NGP Natural Resources XII, L.P., a Delaware limited partnership;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(xi)</TD><TD>G.F.W. Energy XII, L.P., a Delaware limited partnership;</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(xii)</TD><TD>GFW XII, L.L.C., a Delaware limited liability company; and</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(xiii)</TD><TD>NGP Energy Capital Management, L.L.C., a Texas limited liability company.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">NGP Switchback, LLC is the record holder
of the shares reported herein. Scott K. McNeill is a manager and the Chief Executive Officer and Chief Financial Officer of NGP
Switchback, LLC. James E. Mutrie is a manager and the Chief Commercial Officer, General Counsel and Secretary of NGP Switchback,
LLC. Christopher G. Carter, Scott Gieselman and Sam Stoutner are managers of NGP Switchback, LLC. In addition, NGP ETP III Investments,
LLC directly owns a majority of the limited liability company interests of NGP Switchback, LLC. NGP XII US Holdings, L.P. is the
sole member of NGP ETP III Investments, LLC, NGP XII Holdings GP, L.L.C. is the sole general partner of NGP XII US Holdings, L.P.,
and NGP Natural Resources XII, L.P. is the sole member of NGP XII Holdings GP, L.L.C. G.F.W. Energy XII, L.P. is the sole general
partner of NGP Natural Resources XII, L.P., and GFW XII, L.L.C. is the sole general partner of G.F.W. Energy XII, L.P. GFW XII,
L.L.C. has delegated full power and authority to manage NGP XII US Holdings, L.P. to NGP Energy Capital Management, L.L.C.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Information with respect to each Reporting
Person is given solely by such Reporting Person, and no Reporting Person assumes responsibility for the accuracy or completeness
of the information furnished by another Reporting Person. Pursuant to Rule 13d-4 of the Securities Exchange Act of 1934, as amended
(the &ldquo;Exchange Act&rdquo;), the Reporting Persons expressly declare that the filing of this schedule shall not be construed
as an admission that any such person is, for the purposes of Section 13(d) and/or Section 13(g) of the Exchange Act or otherwise,
the beneficial owner of any securities covered by this schedule held by any other person, and such beneficial ownership is expressly
disclaimed.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in"></P>

<!-- Field: Page; Sequence: 15 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->16<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 2(b).</TD><TD>ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">The address of the principal business office
of each of the Reporting Persons is 5949 Sherry Lane, Suite 1010, Dallas, TX 75225.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 2(c).</TD><TD>CITIZENSHIP</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(i)</TD><TD>NGP Switchback, LLC &ndash; Delaware</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(ii)</TD><TD>Scott K. McNeill &ndash; United States</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(iii)</TD><TD>James E. Mutrie &ndash; United States</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(iv)</TD><TD>Christopher G. Carter &ndash; United States</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(v)</TD><TD>Scott Gieselman &ndash; United States</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(vi)</TD><TD>Sam Stoutner &ndash; United States</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in; text-align: left">(vii)</TD><TD>NGP ETP III Investments, LLC - Delaware</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(viii)</TD><TD>NGP XII US Holdings, L.P. &ndash; Delaware</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(ix)</TD><TD>NGP XII Holdings GP, L.L.C. &ndash; Delaware</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(x)</TD><TD>NGP Natural Resources XII, L.P. &ndash; Delaware</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(xi)</TD><TD>G.F.W. Energy XII, L.P. &ndash; Delaware</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(xii)</TD><TD>GFW XII, L.L.C. &ndash; Delaware</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.35in">(xiii)</TD><TD>NGP Energy Capital Management, L.L.C. &ndash; Texas</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 2(d).</TD><TD>TITLE OF CLASS OF SECURITIES</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Class A Common Stock, par value $0.0001
per share (the &ldquo;Class A Common Stock&rdquo;)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 2(e).</TD><TD>CUSIP NUMBER</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">The CUSIP number of the Class A Common
Stock is 87105M 102.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 3.</TD><TD>IF THIS STATEMENT IS FILED PURSUANT TO Rules 13d-1(b), OR 13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 4.</TD><TD>OWNERSHIP.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">The information required by Items 4(a)
&ndash; (c) is set forth in Rows (5) &ndash; (11) of the cover page for each Reporting Person hereto and is incorporated herein
by reference for each such Reporting Person.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">The percentages used in this Schedule 13G
are calculated based upon the 39,264,704 shares of the Issuer&rsquo;s common stock outstanding as of February 1, 2021, as reported
in the Issuer&rsquo;s Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 10, 2021.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in"></P>

<!-- Field: Page; Sequence: 16 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->17<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 5.</TD><TD>OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 6.</TD><TD>OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 7.</TD><TD>IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY
OR CONTROL PERSON</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 8.</TD><TD>IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 9.</TD><TD>NOTICE OF DISSOLUTION OF GROUP</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 1in">Item 10.</TD><TD>CERTIFICATION</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>


<!-- Field: Page; Sequence: 17 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt"></P><TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"><TR STYLE="vertical-align: top"><TD STYLE="width: 34%; font-size: 10pt">CUSIP No. 87105M 102</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: center">13G</TD><TD STYLE="width: 33%; font-size: 10pt; text-align: right">Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->18<!-- Field: /Sequence --> of 19 Pages</TD></TR></TABLE><P STYLE="margin: 0pt"></P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">SIGNATURES</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">After reasonable inquiry and to the best
of his or its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true,
complete and correct.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">DATE: February 16, 2021</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">NGP SWITCHBACK, LLC</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 5%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 35%; font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Scott K. McNeill</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Scott K. McNeill</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Chief Executive Officer and<BR>
 Chief Financial Officer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">SCOTT K. MCNEILL</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Scott K. McNeill</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">Scott K. McNeill</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">JAMES E. MUTRIE</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ James E. Mutrie</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">James E. Mutrie</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">CHRISTOPHER G. CARTER</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">SCOTT GIESELMAN</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Scott Gieselman</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">Scott Gieselman</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">SAM STOUTNER</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Sam Stoutner</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">Sam Stoutner</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">NGP ETP III INVESTMENTS, LLC</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Person</TD></TR>
</TABLE>
<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></P>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">NGP XII US HOLDINGS, L.P.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 5%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 35%; font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">By: NGP XII Holdings GP, L.L.C., its general partner</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Person</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">NGP XII HOLDINGS GP, L.L.C.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Person</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">NGP NATURAL RESOURCES XII, L.P.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">By: G.F.W. Energy XII, L.P., its general partner</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">By: GFW XII, L.L.C., its general partner</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Person</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">G.F.W. ENERGY XII, L.P.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">By: GFW XII, L.L.C., its general partner</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Person</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">GFW XII, L.L.C.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Person</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">NGP ENERGY CAPITAL MANAGEMENT, L.L.C.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid; font-size: 10pt">/s/ Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Christopher G. Carter</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Person</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ea135728ex99-1ngp_switchback.htm
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="text-align: right; margin: 0"><B>Exhibit 99.1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">JOINT FILING AGREEMENT<BR>
PURSUANT TO RULE 13d-1(k)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 18pt">The undersigned acknowledge and agree that
the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this
statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint
filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for
the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible
for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason
to believe that such information is inaccurate.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">DATE: January 31, 2020</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NGP SWITCHBACK, LLC&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Scott K. McNeill</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD STYLE="width: 35%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Scott K. McNeill</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive Officer and Chief Financial Officer</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">SCOTT K. MCNEILL</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Scott K. McNeill</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Scott K. McNeill</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">JAMES E. MUTRIE</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ James E. Mutrie</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">James E. Mutrie</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">CHRISTOPHER G. CARTER</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">Scott Gieselman</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Scott Gieselman</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Scott Gieselman</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">Sam Stoutner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Sam Stoutner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sam Stoutner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NGP XII US HOLDINGS, L.P.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">B</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">y:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NGP XII Holdings GP, L.L.C., its general partner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:&nbsp; </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Authorized Person</FONT></TD></TR>
</TABLE>

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0"></P>

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<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NGP XII HOLDINGS GP, L.L.C.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD STYLE="width: 35%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Authorized Person</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NGP NATURAL RESOURCES XII, L.P.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">B</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">y:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">G.F.W. Energy XII, L.P., its general partner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">B</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">y:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">GFW XII, L.L.C., its general partner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Authorized Person</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">G.F.W. ENERGY XII, L.P.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">B</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">y:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">GFW XII, L.L.C., its general partner</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Authorized Person</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">GFW XII, L.L.C.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Authorized Person</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">NGP ENERGY CAPITAL MANAGEMENT, L.L.C.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name: </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Christopher G. Carter</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Authorized Person</FONT></TD></TR>
</TABLE>
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