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<P style="font-size: 14pt" align="center"><B>UNITED STATES<BR>
SECURITIES AND
EXCHANGE COMMISSION<BR>
<FONT style="font-size: 12pt">Washington, D.C. 20549
</FONT></B>

<P style="font-size: 18pt" align="center"><B>FORM 8-K</B>

<P style="font-size: 12pt" align="center"><B>CURRENT REPORT<BR>
Pursuant to
Section 13 or 15(d) of the Securities Exchange Act of 1934</B>

<P style="font-size: 10pt" align="center"><B>Date of Report (Date of earliest
event reported): September 17, 2008</B>

<P style="font-size: 24pt" align="center"><B>NATURAL GAS SERVICES GROUP,
INC.<BR>
</B><FONT style="font-size: 10pt">(Exact name of registrant as
specified in its charter) </FONT>
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  <TD width="32%">&nbsp;</TD>
  <TD width="1%">&nbsp;</TD>
  <TD width="33%">&nbsp;</TD>
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 </TR>
 <TR valign="bottom">
  <TD style="border-bottom: #000000 1px solid"><B>Colorado</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>1-31398</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>75-2811855</B></TD>
 </TR>
 <TR valign="top">
  <TD>(State or other Jurisdiction of Incorporation)</TD>
  <TD>&nbsp;</TD>
  <TD>(Commission File Number)</TD>
  <TD>&nbsp;</TD>
  <TD>(IRS Employer Identification No.)</TD>
 </TR>

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cellpadding="0" width="100%" border="0">

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  <TD style="border-bottom: #000000 1px solid"><B>508 West Wall Street, Suite
550<BR>
Midland, TX<BR>
</B></TD>
  <TD>&nbsp;</TD>
  <TD style="border-bottom: #000000 1px solid"><B>79701</B></TD>
 </TR>
 <TR valign="top">
  <TD>(Address of Principal Executive Offices)</TD>
  <TD>&nbsp;</TD>
  <TD>(Zip Code)</TD>
 </TR>

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<P style="font-size: 10pt" align="center">Registrant&#8217;s telephone number,
including area code: <B>(432) 262-2700</B>
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  <TD style="border-bottom: #000000 1px solid" nowrap><B>N/A<BR>
</B></TD>
 </TR>
 <TR>
  <TD nowrap>(Former name or former address if changed since last report.)</TD>
 </TR>

</TABLE>


<P style="font-size: 10pt" align="left">Check the appropriate box below if the
Form 8-K filing is intended to simultaneously satisfy the filing obligation of
the registrant under any of the following provisions:

<P style="font-size: 10pt" align="left"><FONT face="Wingdings">o</FONT> Written
communications pursuant to Rule 425 under the Securities Act (17 CFR
230.425)<BR>
<BR>
<FONT face="Wingdings">o</FONT> Soliciting material pursuant
to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<BR>
<BR>
<FONT
face="Wingdings">o</FONT> Pre-commencement communications pursuant to Rule
14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<BR>
<BR>
<FONT
face="Wingdings">o</FONT> Pre-commencement communications pursuant to Rule
13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<BR>


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<P style="font-size: 10pt" align="left"><B>Item&nbsp;3.01 Notice of Delisting
or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of
Listing.</B>

<P style="font-size: 10pt; text-indent: 4%" align="left">On September&nbsp;17,
2008, the Board of Directors of Natural Gas Services Group, Inc.
(the&nbsp;&#8220;Company&#8221;) approved the Company&#8217;s submission of an
application to the New York Stock Exchange (NYSE)&nbsp;to list the
Company&#8217;s common stock on the NYSE. The Company intends to file an
application with the NYSE and provide notice to the American Stock Exchange
(AMEX)&nbsp;that it will cease trading on the AMEX following the initiation of
trading on the NYSE.&nbsp;&nbsp;Pending approval of the application, the
Company anticipates that its common stock will begin trading on the NYSE by the
end of October 2008.&nbsp;&nbsp;Until that time, the Company&#8217;s common
stock will continue to trade on the AMEX.


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<P style="font-size: 10pt" align="center"><B>SIGNATURES</B>

<P style="font-size: 10pt; text-indent: 2%"
align="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the
Securities Exchange Act of 1934, the registrant has duly caused this report to
be signed on its behalf by the undersigned hereunto duly authorized.
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</TD>
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 </TR>
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  <TD valign="top">&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD valign="top" align="left" colspan="3"><B>NATURAL GAS SERVICES GROUP,
INC.</B></TD>
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<DIV style="margin-left: 0px; text-indent: 0px">&nbsp;</DIV>
</TD>
  <TD>&nbsp;</TD>
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<DIV style="margin-left: 0px; text-indent: 0px">Dated: September&nbsp;22,
2008&nbsp; </DIV>
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<DIV style="margin-left: 0px; text-indent: 0px">&nbsp;</DIV>
</TD>
  <TD>&nbsp;</TD>
  <TD valign="top" align="left">By: </TD>
  <TD>&nbsp;</TD>
  <TD valign="top" align="left" style="border-bottom: 1px solid #000000">/s/ Stephen C. Taylor</TD>
 </TR>



 <TR valign="bottom">
  <TD valign="top"><DIV style="margin-left: 0px; text-indent: 0px">&nbsp;</DIV></TD>
  <TD>&nbsp;</TD>
  <TD valign="top" align="left">&nbsp; </TD>
  <TD>&nbsp;</TD>
  <TD valign="top" align="left">Stephen C. Taylor</TD>
 </TR>

 <TR valign="bottom">
  <TD valign="top"><DIV style="margin-left: 0px; text-indent: 0px">&nbsp;</DIV></TD>
  <TD>&nbsp;</TD>
  <TD valign="top" align="left">&nbsp; </TD>
  <TD>&nbsp;</TD>
  <TD valign="top" align="left">President &amp; Chief Executive Officer</TD>
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Filed by Bowne Pure Compliance
UNITED STATES
SECURITIES AND
EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to
Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest
event reported): September 17, 2008
NATURAL GAS SERVICES GROUP,
INC.
(Exact name of registrant as
specified in its charter)
Colorado
1-31398
75-2811855
(State or other Jurisdiction of Incorporation)
(Commission File Number)
(IRS Employer Identification No.)
508 West Wall Street, Suite
550
Midland, TX
79701
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number,
including area code:
(432) 262-2700
N/A
(Former name or former address if changed since last report.)
Check the appropriate box below if the
Form 8-K filing is intended to simultaneously satisfy the filing obligation of
the registrant under any of the following provisions:
o
Written
communications pursuant to Rule 425 under the Securities Act (17 CFR
230.425)
o
Soliciting material pursuant
to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule
14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule
13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 3.01 Notice of Delisting
or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of
Listing.
On September 17,
2008, the Board of Directors of Natural Gas Services Group, Inc.
(the "Company") approved the Company's submission of an
application to the New York Stock Exchange (NYSE) to list the
Company's common stock on the NYSE. The Company intends to file an
application with the NYSE and provide notice to the American Stock Exchange
(AMEX) that it will cease trading on the AMEX following the initiation of
trading on the NYSE.  Pending approval of the application, the
Company anticipates that its common stock will begin trading on the NYSE by the
end of October 2008.  Until that time, the Company's common
stock will continue to trade on the AMEX.
2
SIGNATURES
Pursuant to the requirements of the
Securities Exchange Act of 1934, the registrant has duly caused this report to
be signed on its behalf by the undersigned hereunto duly authorized.
NATURAL GAS SERVICES GROUP,
INC.
Dated: September 22,
2008
By:
/s/ Stephen C. Taylor
Stephen C. Taylor
President & Chief Executive Officer
3