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<SEC-DOCUMENT>0000897069-07-001479.txt : 20070709
<SEC-HEADER>0000897069-07-001479.hdr.sgml : 20070709
<ACCEPTANCE-DATETIME>20070709145224
ACCESSION NUMBER:		0000897069-07-001479
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20070709
DATE AS OF CHANGE:		20070709

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATURAL GAS SERVICES GROUP INC
		CENTRAL INDEX KEY:			0001084991
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL, GAS FIELD SERVICES, NBC [1389]
		IRS NUMBER:				752811855

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-78868
		FILM NUMBER:		07969316

	BUSINESS ADDRESS:	
		STREET 1:		2911 SCR 1260
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79706
		BUSINESS PHONE:		9155633974

	MAIL ADDRESS:	
		STREET 1:		2911 SCR 1260
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79706

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KEELEY ASSET MANAGEMENT CORP
		CENTRAL INDEX KEY:			0001056504
		IRS NUMBER:				363160361
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		401 SOUTH LASALLE STREET
		STREET 2:		STE 1201
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60605
		BUSINESS PHONE:		3127865000

	MAIL ADDRESS:	
		STREET 1:		KELLEY ASSET MANAGEMENT CORP
		STREET 2:		401 S LASALLE ST STE 1201
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60605
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>cmw2912.htm
<DESCRIPTION>AMENDMENT NO. 1
<TEXT>
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     <TH><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TH></TR>
<TR>
      <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT> </TD>
      <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT><HR WIDTH="100%" SIZE="2" ALIGN="Left" COLOR="Black"></TD>
      <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT> </TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TD>
     <TD COLSPAN="2" ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="1">OMB APPROVAL</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TD></TR>
<TR>
      <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT> </TD>
      <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT><HR WIDTH="100%" SIZE="2" ALIGN="Left" COLOR="Black"></TD>
      <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT> </TD></TR>
<TR VALIGN="TOP">
     <TD WIDTH="65%"><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TD>
     <TD WIDTH="19%"><FONT FACE="Times New Roman, Times, Serif" SIZE="1">OMB Number:
</FONT></TD>
     <TD WIDTH="15%" ALIGN="Right"><FONT FACE="Times New Roman, Times, Serif" SIZE="1">3235-0145
</FONT></TD>
     <TD WIDTH="1%"><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1">Expires:
</FONT></TD>
     <TD ALIGN="Right"><FONT FACE="Times New Roman, Times, Serif" SIZE="1">February 28, 2009
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TD></TR>
<TR VALIGN="TOP">
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1">Estimated average burden <BR>&nbsp;&nbsp;hours per response
</FONT></TD>
     <TD ALIGN="Right"><FONT FACE="Times New Roman, Times, Serif" SIZE="1"><BR>. . . . . . . . . . . . . . . 10.4
</FONT></TD>
     <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT></TD></TR>
<TR>
      <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT> </TD>
      <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT><HR WIDTH="100%" SIZE="2" ALIGN="Left" COLOR="Black"></TD>
      <TD><FONT FACE="Times New Roman, Times, Serif" SIZE="1"></FONT> </TD></TR>
</TABLE>
<BR>


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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>Washington, D.C. 20549 </FONT></H1>

<!-- MARKER FORMAT-SHEET="Head Major Center Bold-TNR" FSL="Project" -->
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SCHEDULE 13G </FONT></H1>

<!-- MARKER FORMAT-SHEET="Head Major Center Bold 1-TNR" FSL="Project" -->
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Under the Securities
Exchange Act of 1934<BR>(Amendment No. 1)* </FONT></H1>



<TABLE WIDTH="750" CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER">
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     <TD WIDTH="100%" ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>NATURAL GAS SERVICES GROUP, INC.</B> </FONT>
<HR WIDTH="70%" SIZE="1" ALIGN="Center" COLOR="Black"></TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="1">(Name of Issuer)
</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><B>Common Stock</B> </FONT>
<HR WIDTH="70%" SIZE="1" ALIGN="Center" COLOR="Black"></TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="1">(Title of Class of Securities)
</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><B>63886Q109</B> </FONT>
<HR WIDTH="70%" SIZE="1" ALIGN="Center" COLOR="Black"></TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="1">(CUSIP Number)
</FONT></TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><BR><B>June 30, 2007</B> </FONT>
<HR WIDTH="70%" SIZE="1" ALIGN="Center" COLOR="Black"></TD></TR>
<TR VALIGN="TOP">
     <TD ALIGN="Center"><FONT FACE="Times New Roman, Times, Serif" SIZE="1">(Date of Event Which Requires Filing of this Statement
</FONT></TD></TR>
</TABLE>
<BR>


<!-- MARKER FORMAT-SHEET="Para Flush Lv 0-TNR" FSL="Default" -->
<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Check the appropriate box to
designate the rule pursuant to which this Schedule is filed: </FONT></P>

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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>[X] </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Rule 13d-1(b)</FONT></TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>[&nbsp;&nbsp;&nbsp;] </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Rule 13d-1(c)</FONT></TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>[&nbsp;&nbsp;&nbsp;] </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><BR>Rule 13d-1(d)</FONT></TD>
</TR>
</TABLE>
<BR>


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<TD WIDTH=4%><FONT FACE="Times New Roman, Times, Serif" SIZE=1>* </FONT></TD>
<TD WIDTH=96%><FONT FACE="Times New Roman, Times, Serif" SIZE=1>The
remainder of this cover page shall be filled out for a reporting person&#146;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. </FONT></TD>
</TR>
</TABLE>


<!-- MARKER FORMAT-SHEET="Para Flush Lv 0-TNR" FSL="Default" -->
<P><FONT FACE="Times New Roman, Times, Serif" SIZE=1>The information required in the
remainder of this cover page shall not be deemed to be &#147;filed&#148; for the purpose
of Section 18 of the Securities Exchange Act of 1934 (&#147;Act&#148;) 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). </FONT></P>




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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(Continued on following page(s))<BR>
Page 1 of 5 Pages </FONT></P>

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<TD WIDTH="100%"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
 </FONT><HR ALIGN=LEFT WIDTH=40% SIZE=1 NOSHADE></TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=100%>
<FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>CUSIP
No. 63886Q109</B> </FONT> <HR ALIGN=LEFT WIDTH=40% SIZE=1 NOSHADE></TD>
</TR>
</TABLE>
<BR>

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     <TH ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TH>
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     <TH ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TH>
     <TH ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TH>
     <TH ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT> </TH>
</TR>
<TR VALIGN=Bottom>
     <TD WIDTH="10%" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD>
     <TD WIDTH="10%" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD>
     <TD WIDTH="10%" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD>
     <TD WIDTH="60%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD>
     <TD WIDTH="10%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD>
</TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>1</B><BR><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>NAMES OF REPORTING PERSONS<BR>
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)<BR><BR>
<B>Keeley Asset Management Corp.; Tax I.D. No.: 36-3160361</B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>2<BR><BR><BR></B> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="3"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)<BR><BR><B>Not Applicable</B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
     <TD ALIGN="Right"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">(a)&nbsp;&nbsp;&nbsp;[&nbsp;&nbsp;]<BR>(b)&nbsp;&nbsp;&nbsp;[&nbsp;&nbsp;]
</FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>3</B><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SEC USE ONLY<BR><BR></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>4</B><BR><BR><BR> </FONT></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>CITIZENSHIP OR PLACE OF ORGANIZATION<BR><BR><B>Illinois</B> </FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>NUMBER OF<BR><BR>SHARES</B> </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>5</B><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">SOLE VOTING POWER<BR><BR><B>-0-</B> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
</TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>BENEFICIALLY<BR><BR>OWNED</B> </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>6</B><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SHARED VOTING POWER<BR><BR><B>1,325,000</B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
</TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>BY EACH<BR><BR>REPORTING</B> </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>7</B><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SOLE DISPOSITIVE POWER<BR><BR><B>-0-</B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
</TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>PERSON WITH:</B><BR><BR> </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>8</B><BR><BR><BR> </FONT></TD>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SHARED DISPOSITIVE POWER<BR><BR><B>1,325,000</B></FONT></TD>
</TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>9</B><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<BR><BR>
<B>1,325,000<SUP>(1)</SUP></B> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>10</B>&nbsp;&nbsp;<BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="3"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES <BR>
(SEE INSTRUCTIONS)<BR>
<B>Not Applicable</B> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
     <TD ALIGN="Right"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">[&nbsp;&nbsp;]</FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%">
</TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>11</B>&nbsp;&nbsp;<BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<BR><BR>
<B>11.0%<SUP>(1)</SUP></B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>12</B>&nbsp;&nbsp;<BR><BR><BR> </FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)<BR><BR>
<B>IA</B></FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD></TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=1>(1) </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=1>The
  percent   ownership   calculated  is  based  upon  an aggregate of 12,067,166 shares
outstanding as of March 12, 2007.</FONT></TD>
</TR>
</TABLE>
<BR>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Page 2 of 5 Pages </FONT></P>




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<TD WIDTH=100%>
<FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>CUSIP
No. 63886Q109</B> </FONT> <HR ALIGN=LEFT WIDTH=40% SIZE=1 NOSHADE></TD>
</TR>
</TABLE>
<BR>

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</TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>1</B><BR><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>NAMES OF REPORTING PERSONS<BR>
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)<BR><BR>
<B>Keeley Small Cap Value Fund, Inc.; Tax I.D. No.: 36-3872373</B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>2<BR><BR><BR></B> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="3"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)<BR><BR><B>Not Applicable</B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
     <TD ALIGN="Right"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">(a)&nbsp;&nbsp;&nbsp;[&nbsp;&nbsp;]<BR>(b)&nbsp;&nbsp;&nbsp;[&nbsp;&nbsp;]
</FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>3</B><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SEC USE ONLY<BR><BR></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>4</B><BR><BR><BR> </FONT></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>CITIZENSHIP OR PLACE OF ORGANIZATION<BR><BR><B>Maryland</B> </FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>NUMBER OF<BR><BR>SHARES</B> </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>5</B><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">SOLE VOTING POWER<BR><BR><B>-0-</B> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
</TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>BENEFICIALLY<BR><BR>OWNED</B> </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>6</B><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SHARED VOTING POWER<BR><BR><B>1,325,000</B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
</TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>BY EACH<BR><BR>REPORTING</B> </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>7</B><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SOLE DISPOSITIVE POWER<BR><BR><B>-0-</B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
</TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>PERSON WITH:</B><BR><BR> </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>8</B><BR><BR><BR> </FONT></TD>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SHARED DISPOSITIVE POWER<BR><BR><B>1,325,000</B></FONT></TD>
</TR>
<TR VALIGN=Bottom>
     <TD COLSPAN="2"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>

<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>9</B><BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<BR><BR>
<B>1,325,000<SUP>(1)</SUP></B> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>10</B>&nbsp;&nbsp;<BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="3"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES <BR>
(SEE INSTRUCTIONS)<BR>
<B>Not Applicable</B> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD>
     <TD ALIGN="Right"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">[&nbsp;&nbsp;]</FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%">
</TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>11</B>&nbsp;&nbsp;<BR><BR><BR> </FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="90%"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<BR><BR>
<B>11.0%<SUP>(1)</SUP></B></FONT><HR SIZE="1" ALIGN="Left" COLOR="Black" WIDTH="100%"></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>12</B>&nbsp;&nbsp;<BR><BR><BR> </FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD>
     <TD COLSPAN="4"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)<BR><BR>
<B>IV</B></FONT><HR SIZE="3" ALIGN="Center" COLOR="Black"></TD></TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=1>(1) </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=1>The
  percent   ownership   calculated  is  based  upon  an aggregate of 12,067,166 shares
outstanding as of March 12, 2007.</FONT></TD>
</TR>
</TABLE>
<BR>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Page 3 of 5 Pages </FONT></P>




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<BR>

<TABLE WIDTH="760" CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER">
<TR VALIGN=TOP>
<TD WIDTH="100%"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
 </FONT><HR ALIGN=LEFT WIDTH=40% SIZE=1 NOSHADE></TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=100%>
<FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>CUSIP
No. 63886Q109</B> </FONT> <HR ALIGN=LEFT WIDTH=40% SIZE=1 NOSHADE></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
Amendment No. 1 to the undersigned&#146;s Schedule 13G, which was originally filed on
February 13, 2007 (the &#147;Schedule 13G&#148;) with regard to Natural Gas Services
Group, Inc. (the &#147;Issuer&#148;), is being filed to amend Item 4 of the Schedule 13G.
Except as expressly stated herein, there have been no material changes in the information
set forth in the Schedule 13G. </FONT></P>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>Item 4.</U>  </FONT></TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><U>Ownership</U> </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%>&nbsp;</TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<I><B><U>Keeley
Asset Management Corp.</U></B></I> </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(a) </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amount
Beneficially Owned:&nbsp;&nbsp;<B>1,325,000*</B> </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(b) </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Percent
of Class:&nbsp;&nbsp;<B>11.0%</B> </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(c) </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Number
of shares as to which such person has:  </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(i) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>sole
power to vote or to direct the vote:&nbsp;&nbsp;<B>-0-</B> </FONT></TD>
</TR>
</TABLE>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(ii) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>shared
power to vote or to direct the vote:&nbsp;&nbsp;<B>1,325,000</B> </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(iii) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>sole
power to dispose or to direct the disposition of:&nbsp;&nbsp;<B>-0-</B> </FONT></TD>
</TR>
</TABLE>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(iv) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>shared
power to dispose or to direct the disposition of:&nbsp;&nbsp;<B>1,325,000</B> </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%>&nbsp;</TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<I><B><U>Keeley
Small Cap Value Fund, Inc.</U></B></I> </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(a) </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amount
Beneficially Owned:&nbsp;&nbsp;<B>1,325,000</B>*  </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(b) </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Percent
of Class:&nbsp;&nbsp;<B>11.0%</B> </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(c) </FONT></TD>
<TD WIDTH=85%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Number
of shares as to which such person has:  </FONT></TD>
</TR>
</TABLE>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(i) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>sole
power to vote or to direct the vote:&nbsp;&nbsp;<B>-0-</B> </FONT></TD>
</TR>
</TABLE>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(ii) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>shared
power to vote or to direct the vote:&nbsp;&nbsp;<B>1,325,000</B> </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(iii) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>sole
power to dispose or to direct the disposition of:&nbsp;&nbsp;<B>-0-</B> </FONT></TD>
</TR>
</TABLE>


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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=15%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(iv) </FONT></TD>
<TD WIDTH=80%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>shared
power to dispose or to direct the disposition of:&nbsp;&nbsp;<B>1,325,000</B> </FONT></TD>
</TR>
</TABLE>
<BR>

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<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>*  </FONT></TD>
<TD WIDTH=95%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Keeley
Asset Management Corp. and Keeley Small Cap Value Fund, Inc. share beneficial ownership
over the same 1,325,000 shares.</FONT></TD>
</TR>
</TABLE>
<BR>


<BR><BR><BR>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Page 4 of 5 Pages </FONT></P>





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<BR>

<TABLE WIDTH="760" CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER">
<TR VALIGN=TOP>
<TD WIDTH="100%"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
 </FONT><HR ALIGN=LEFT WIDTH=40% SIZE=1 NOSHADE></TD>
</TR>
<TR VALIGN=TOP>
<TD WIDTH=100%>
<FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>CUSIP
No. 63886Q109</B> </FONT> <HR ALIGN=LEFT WIDTH=40% SIZE=1 NOSHADE></TD>
</TR>
</TABLE>
<BR>


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<TR VALIGN=TOP>
<TD WIDTH=10%>&nbsp;</TD>
<TD WIDTH=90%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<U>Exhibits.</U> </FONT></TD>
</TR>
</TABLE>
<BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.&nbsp;&nbsp;&nbsp;&nbsp;          Agreement
to file Schedule 13G jointly (previously filed as Exhibit&nbsp;1 to           the
Schedule 13G filed February 13, 2007).  </FONT></P>


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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SIGNATURE </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;After
reasonable inquiry and to the best of my knowledge and belief, I certify that the
information set forth in this statement is true, complete and correct. </FONT></P>

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<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Date: July 9, 2007 </FONT></P>


<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH=100%>
<TR VALIGN=Bottom>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2></FONT></TD>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>KEELEY ASSET MANAGEMENT CORP.</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR><BR>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><U>/s/ John L. Keeley, Jr.</U></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>John L. Keeley, Jr., President</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR><BR>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>KEELEY SMALL CAP VALUE FUND, INC.</FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><BR><BR>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2><U>/s/ John L. Keeley, Jr.</U></FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2></FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman" SIZE=2>John L. Keeley, Jr., President</FONT></TD></TR>
</TABLE>






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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Page 5 of 5 Pages </FONT></P>

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