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<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>As
filed with the Securities and Exchange Commission on June 11, 2010</B>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 0pt">Registration No.&nbsp;333-_____
</DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>








<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">
<DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>


<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">
<DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>


<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>PAA NATURAL GAS STORAGE, L.P.</B>
</DIV>

<DIV align="center" style="font-size: 10pt">
(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="31%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>27-1679071</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other jurisdiction of
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. Employer</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Identification No.)</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>333 Clay Street, Suite&nbsp;1500</B></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>Houston, Texas 77002</B></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD  nowrap align="center" valign="top"><B>(713)&nbsp;646-4100</B><BR>
(Address of principal executive offices, including zip code)</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">
<DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 12pt">
<B>PAA NATURAL GAS STORAGE, L.P. 2010 LONG TERM INCENTIVE PLAN</B><BR>

(Full title of the plan)</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 12pt">
<B>Richard K. McGee<BR>

Tim Moore<BR>

333 Clay Street, Suite&nbsp;1500<BR>

Houston, Texas 77002<BR>

(713)&nbsp;646-4100</B><BR>

(Name, address and telephone number of agent for service)</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 12pt">
copy to:
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 6pt">
<B>David P. Oelman<BR>

D. Alan Beck, Jr.<BR>

Vinson &#038; Elkins L.L.P.<BR>

1001 Fannin Street, Suite&nbsp;2500<BR>

Houston, Texas 77002<BR>

(713)&nbsp;758-2222</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated
filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &#147;large
accelerated filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the
Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;).</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><FONT style="white-space: nowrap"><B>Large accelerated filer </B><FONT style="font-family: Wingdings">&#111;</FONT></FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap"><B>Accelerated filer </B><FONT style="font-family: Wingdings">&#111;</FONT></FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" valign="top"><FONT style="white-space: nowrap"><B>Non-accelerated filer </B><FONT style="font-family: Wingdings">&#254;</FONT></FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap"><B>Smaller Reporting Company</B> <FONT style="font-family: Wingdings">&#111;</FONT></FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap"><B>(Do not check if smaller reporting company)</B></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CALCULATION OF REGISTRATION FEE</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom" style="font-size: 1px">
    <TD width="1%">&nbsp;</TD>
    <TD width="54%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="21" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">Proposed</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">Proposed</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">Title of securities</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">Amount to be</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">maximum offering</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">maximum aggregate</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">Amount of</TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">to be registered</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">registered (1)</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">price per unit</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">offering price</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">registration fee</TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Units, representing
limited partner interests</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD colspan="3" align="center" style="border-top: 2px solid #000000" nowrap>3,000,000 units</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">23.875 </TD>
    <TD nowrap style="border-top: 2px solid #000000">(2)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">71,625,000 </TD>
    <TD nowrap style="border-top: 2px solid #000000">(2)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">5,107</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="21" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 0px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &#147;Securities
Act&#148;), there are also being registered such additional Common Units as may become issuable
pursuant to the adjustment provisions of the PAA Natural Gas Storage, L.P. 2010 Long Term
Incentive Plan. In addition, pursuant to Rule 416(c) under the Securities Act, this
registration statement also covers an indeterminate amount of interests to be offered or sold
pursuant to the plan described herein.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated solely for purposes of calculating the registration fee in accordance with Rules
457(c) and 457(h) under the Securities Act. The price for the 3,000,000 Common Units being
registered hereby is based on a price of $23.875, which is the average of the high and low
prices per Common Unit of PAA Natural Gas Storage, L.P. as reported by the New York Stock
Exchange on June 10, 2010.</TD>
</TR>

</TABLE>



<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">








<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART I<BR>
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PAA Natural Gas Storage, L.P. (the &#147;Registrant&#148;) will send or give to all
participants in the PAA Natural Gas Storage, L.P. 2010 Long Term Incentive Plan (the
&#147;Plan&#148;) the document(s) containing information required by Part&nbsp;I of Form S-8, as specified in Rule
428(b)(1) promulgated by the Securities and Exchange Commission (the &#147;Commission&#148;) under the
Securities Act of 1933, as amended (the &#147;Securities Act&#148;). The Registrant has not filed such
document(s) with the Commission, but such documents (along with the documents incorporated by
reference into this Form S-8 Registration Statement (the &#147;Registration Statement&#148;) pursuant to Item
3 of Part&nbsp;II hereof) shall constitute a prospectus that meets the requirements of Section 10(a) of
the Securities Act.
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II<BR>
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>
</DIV>


<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;3.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>Incorporation of Documents by Reference.</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Except to the extent that information is deemed furnished and not filed pursuant to securities
laws and regulations, the Registrant hereby incorporates by reference into this Registration
Statement the following documents:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The Registrant&#146;s prospectus filed pursuant to Rule 424(b) under the Securities Act (File
No.&nbsp;333-164492) relating to the Registrant&#146;s Registration Statement on Form S-1, filed with the
Commission on May&nbsp;3, 2010;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The Registrant&#146;s Current Report on Form 8-K (File No.&nbsp;001-34722) filed with the Commission
on May&nbsp;4, 2010;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;The Registrant&#146;s Current Report on Form 8-K (File No.&nbsp;001-34722) filed with the Commission
on May&nbsp;11, 2010;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;The
Registrant&#146;s Quarterly Report on Form 10-Q (File No.&nbsp;001-34722) filed with the Commission
on June&nbsp;9, 2010; and


</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e)&nbsp;The description of the Registrant&#146;s Common Units, representing limited partner interests,
contained in the Registrant&#146;s Registration Statement on Form 8-A (File No.&nbsp;001-34722) filed with
the Commission on April&nbsp;27, 2010, pursuant to Section 12(b) of the Exchange Act, including any
amendment or report filed for the purpose of updating such description.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Except to the extent that information is deemed furnished and not filed pursuant to securities
laws and regulations, all documents filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14
and 15(d) of the Exchange Act subsequent to the date hereof and prior to the filing of a
post-effective amendment that indicates that all securities offered have been sold or that
deregisters all securities then remaining unsold shall also be deemed to be incorporated by
reference herein and to be a part hereof from the dates of filing of such documents. Any statement
contained in a document incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Registration Statement to the extent that
a statement contained herein or in any other subsequently filed document which also is or is deemed
to be incorporated by reference herein modifies or supersedes such statement. Any statement so
modified or superseded shall not be deemed, except as so modified or superseded, to constitute a
part of this Registration Statement.
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;4.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>Description of Securities.</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;5.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>Interests of Named Experts and Counsel.</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;6.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>Indemnification of Directors and Officers.</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;7.7 of the Registrant&#146;s Amended and Restated Agreement of Limited Partnership (the
&#147;Partnership Agreement&#148;) provides that the Registrant will indemnify and hold harmless (1)&nbsp;PNGS GP
LLC (the &#147;Company&#148;), as its
</DIV>


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</DIV>



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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">general partner, (2)&nbsp;any departing general partner of the Registrant (a &#147;Departing GP&#148;), (3)
any person who is or was an affiliate of the Company or a Departing GP, (4)&nbsp;any person who is or
was a director, officer, partner, member, manager, fiduciary, agent or trustee of the Registrant,
any of its subsidiaries, the Company or a Departing GP, or any affiliate of any of the foregoing,
(5)&nbsp;any person who is or was serving at the request of the Company or a Departing GP or any
affiliate of the Company or a Departing GP as an officer, director, member, manager, partner,
fiduciary, agent or trustee of another person (provided, that such a person shall not be an
indemnitee by reason of providing, on a fee-for-services basis, trustee, fiduciary or custodial
services), and (6)&nbsp;any person the Company designates as an indemnitee for purposes of the
Partnership Agreement to the fullest extent permitted by law (subject to the limitations expressed
in the Partnership Agreement) from and against all claims, liabilities, costs, and expenses
(including legal expenses) incurred by the Company, a Departing GP, or any other person described
above. The indemnitee must not have acted in bad faith or engaged in fraud, willful misconduct
or, in the case of a criminal matter, acted with knowledge that his or her conduct was unlawful.
Thus, the Company, a Departing GP or the other persons indicated above could be indemnified for
negligent acts to the fullest extent permitted by law if the requirements specified in the
preceding sentence are satisfied.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any indemnification described above will only be made out of the assets of the Registrant.
Unless the Company otherwise agrees, the Company will not be personally liable for or have any
obligation to contribute or lend funds or assets to the Registrant to enable the Registrant to
effectuate indemnification. No indemnification will be available to the Company or its affiliates
(other than the Registrant, its subsidiaries or any individual) with respect to their obligations
incurred pursuant to the Underwriting Agreement (as defined in the Partnership Agreement), the
Omnibus Agreement (as defined in the Partnership Agreement), the Tax Sharing Agreement (as defined
in the Partnership Agreement) or the Contribution Agreement (as defined in the Partnership
Agreement) other than obligations incurred by the Company on behalf of the Registrant.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subject to any terms, conditions, or restrictions set forth in the Partnership Agreement,
Section&nbsp;17-108 of the Delaware Revised Uniform Limited Partnership Act empowers a Delaware limited
partnership to indemnify and hold harmless any partner or other person from and against all claims
and demands whatsoever. In accordance with the Partnership Agreement, the Registrant may purchase
and maintain (or reimburse the Company or its affiliates for the cost of) insurance against
liabilities asserted against, and expenses incurred by, a person in connection with the
Registrant&#146;s activities, regardless of whether the Registrant would have the power to indemnify the
person against liabilities under the Partnership Agreement.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unless otherwise indicated below as being incorporated by reference to another filing of the
Registrant with the Commission, each of the following exhibits is filed herewith:
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Exhibit Number </TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Description </TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Certificate of Limited Partnership of PAA Natural Gas Storage, L.P. (incorporated
by reference to Exhibit&nbsp;3.1 to the Registration Statement on Form&nbsp;S-1 (File No.
333-164492) filed on January&nbsp;25, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Agreement of Limited Partnership of PAA Natural Gas Storage,
L.P. (incorporated by reference to Exhibit&nbsp;3.1 to the Current Report on Form&nbsp;8-K
filed on May&nbsp;11, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">PAA Natural Gas Storage, L.P. 2010 Long Term Incentive Plan (incorporated by
reference to Exhibit&nbsp;10.2 to the Current Report on Form&nbsp;8-K filed on May&nbsp;11, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Grant of Phantom Units (with Distribution Equivalent Rights) under the PAA
Natural Gas Storage, L.P. 2010 Long Term Incentive Plan (incorporated by reference
to Exhibit&nbsp;10.4 to Amendment No.&nbsp;3 to the Registration Statement on Form&nbsp;S-1 (File
No.&nbsp;333-164492) filed on April&nbsp;13, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.5
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Grant of Phantom Units (without Distribution Equivalent Rights) under the
PAA Natural Gas Storage, L.P. 2010 Long Term Incentive Plan (incorporated by
reference to Exhibit&nbsp;10.5 to Amendment No.&nbsp;3 to the Registration Statement on Form
S-1 (File No.&nbsp;333-164492) filed on April&nbsp;13, 2010).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Exhibit Number </TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Description </TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Vinson &#038; Elkins LLP as to the legality of the securities being registered</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of PricewaterhouseCoopers LLP</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Vinson &#038; Elkins LLP (contained in Exhibit&nbsp;5.1)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Powers of Attorney (included on the signature page of this Registration Statement)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">*</TD>
    <TD>&nbsp;</TD>
    <TD>Filed herewith.</TD>
</TR>

</TABLE>



<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) The undersigned Registrant hereby undertakes:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 4%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 6%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) to include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 6%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) to reflect in the prospectus any facts or events arising after the effective
date of the Registration Statement (or the most recent post-effective amendment thereof)
which, individually or in the aggregate, represent a fundamental change in the
information set forth in the Registration Statement. Notwithstanding the foregoing, any
increase or decrease in volume of securities offered (if the total dollar value of
securities offered would not exceed that which was registered) and any deviation from
the low or high end of the estimated maximum offering range may be reflected in the form
of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate,
the changes in volume and price represent no more than a 20&nbsp;percent change in the
maximum aggregate offering price set forth in the &#147;Calculation of Registration Fee&#148;
table in the effective registration statement; and
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 6%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) to include any material information with respect to the plan of distribution
not previously disclosed in the Registration Statement or any material change to such
information in the Registration Statement;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 4%"><I>provided, however, </I>that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information
required to be included in a post-effective amendment by those paragraphs is contained in
periodic reports filed with or furnished to the Commission by the Registrant pursuant to
Section&nbsp;13 or Section 15(d) of the Exchange Act that are incorporated by reference in this
Registration Statement.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 4%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) That, for the purpose of determining any liability under the Securities Act, each
such post-effective amendment shall be deemed to be a new registration statement relating to
the securities offered therein, and the offering of such securities at that time shall be
deemed to be the initial <I>bona fide </I>offering thereof.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 4%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) To remove from registration by means of a post-effective amendment any of the
securities being registered which remain unsold at the termination of the offering.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Registrant&#146;s annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan&#146;s annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the Registration Statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such securities at
that time shall be deemed to be the initial <I>bona fide </I>offering thereof.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Securities Act and
is, therefore, unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or paid by a
director, officer or controlling person of the Registrant in the successful defense of any
action, suit or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in the opinion of
its counsel the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is against public policy as
expressed in the Securities Act and will be governed by the final adjudication of such
issue.
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>




<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act, the Registrant certifies that it has
reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has
duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Houston, State of Texas, on
June 11, 2010.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left"><B>PAA NATURAL GAS STORAGE, L.P.</B><BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" align="left">PNGS GP LLC, its general partner
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">

/s/ Greg L. Armstrong</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Name:&nbsp;&nbsp;</TD>
    <TD align="left">Greg L. Armstrong</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Title:&nbsp;&nbsp;</TD>
    <TD align="left">Chairman of the Board and <BR>
Chief Executive Officer</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KNOWN ALL MEN BY THESE PRESENTS, that each person whose signature appears below authorizes and
appoints each of Richard K. McGee and Al Swanson, and each of them, severally, acting alone and
without the other, as his true and lawful attorney-in-fact and agent, with full power of
substitution and resubstitution, for him and in his name, place and stead in any and all capacities
to sign any and all amendments (including pre- and post-effective amendments) to this Registration
Statement and any additional registration statement pursuant to Rule 462(b) under the Securities
Act, and to file the same with all exhibits thereto, and other documents in connection therewith,
with the Commission, granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and necessary to be done, as
fully to all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, or his or their substitute
or substitutes may lawfully do or cause to be done by virtue hereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act, this registration statement has been
signed by the following persons in the capacities and on the date indicated.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="40%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="40%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="14%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
    <TD>&nbsp;</TD>
<TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Date</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
Greg L. Armstrong<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Greg L. Armstrong
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chairman of the Board, Chief&nbsp;<br>
Executive Officer and Director<br>
(Principal Executive Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 11, 2010</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Harry N. Pefanis<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Harry N. Pefanis
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Vice Chairman and Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 11, 2010</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Dean Liollio
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">President and Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 11, 2010</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Dean Liollio</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Al Swanson
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Senior Vice President, Chief&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 11, 2010</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Al Swanson
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Financial Officer and Director<br>
(Principal Financial Officer)</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Tina L. Summers
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Vice President&#151;Accounting and&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 11, 2010</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Tina L. Summers
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chief Accounting Officer<BR>
(Principal Accounting Officer)</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Victor Burk
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 11, 2010</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Victor Burk</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
Bobby S. Shackouls
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 11, 2010</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Bobby S. Shackouls</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


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<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="top">
    <TD width="10%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="87%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Exhibit Number</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="top">
    <TD align="center"><DIV style="margin-left:30px; text-indent:-15px">4.1</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Certificate of Limited Partnership
of PAA Natural Gas Storage, L.P. (incorporated by reference to
Exhibit 3.1 to the Registration Statement on Form S-1 (File No. 333-164492) filed on January 25, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><DIV style="margin-left:30px; text-indent:-15px">4.2</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Agreement of
Limited Partnership of PAA Natural Gas Storage, L.P. (incorporated by
reference to Exhibit 3.1 to the Current Report on Form 8-K filed on May 11, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><DIV style="margin-left:30px; text-indent:-15px">4.3</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">PAA Natural Gas Storage, L.P. 2010
Long Term Incentive Plan (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed on May 11, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><DIV style="margin-left:30px; text-indent:-15px">4.4</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Grant of Phantom Units
(with Distribution Equivalent Rights) under the PAA Natural Gas
Storage, L.P. 2010 Long Term Incentive Plan (incorporated by
reference to Exhibit 10.4 to Amendment No. 3 to the Registration Statement on Form S-1 (File No. 333-164492) filed on April 13, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><DIV style="margin-left:30px; text-indent:-15px">4.5</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Grant of Phantom Units
(without Distribution Equivalent Rights) under the PAA Natural Gas
Storage, L.P. 2010 Long Term Incentive Plan (incorporated by
reference to Exhibit 10.5 to Amendment No. 3 to the Registration Statement on Form S-1 (File No. 333-164492) filed on April 13, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><DIV style="margin-left:30px; text-indent:-15px">5.1*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Vinson &#038; Elkins LLP as to the legality of the securities being registered</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">23.1*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of PricewaterhouseCoopers LLP</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="top">

<TD align="center"><DIV style="margin-left:15px; text-indent:-15px">23.2*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Vinson &#038; Elkins LLP (contained in Exhibit 5.1)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">24.1*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Powers of Attorney (included on the signature page of this Registration Statement)</TD>
</TR>
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    <TD>&nbsp;</TD>
    <TD>Filed herewith.</TD>
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[{"type": "S-8", "sequence": "1", "filename": "h73228sv8.htm", "description": "FORM S-8", "secsgml_size_bytes": 53283}]
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sv8
As
filed with the Securities and Exchange Commission on June 11, 2010
Registration No. 333-_____
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
PAA NATURAL GAS STORAGE, L.P.
(Exact name of registrant as specified in its charter)
Delaware
27-1679071
(State or other jurisdiction of
(I.R.S. Employer
incorporation or organization)
Identification No.)
333 Clay Street, Suite 1500
Houston, Texas 77002
(713) 646-4100
(Address of principal executive offices, including zip code)
PAA NATURAL GAS STORAGE, L.P. 2010 LONG TERM INCENTIVE PLAN
(Full title of the plan)
Richard K. McGee
Tim Moore
333 Clay Street, Suite 1500
Houston, Texas 77002
(713) 646-4100
(Name, address and telephone number of agent for service)
copy to:
David P. Oelman
D. Alan Beck, Jr.
Vinson & Elkins L.L.P.
1001 Fannin Street, Suite 2500
Houston, Texas 77002
(713) 758-2222
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated
filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large
accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the
Securities Exchange Act of 1934, as amended (the "Exchange Act").
Large accelerated filer
o
Accelerated filer
o
Non-accelerated filer
þ
Smaller Reporting Company
o
(Do not check if smaller reporting company)
CALCULATION OF REGISTRATION FEE
Proposed
Proposed
Title of securities
Amount to be
maximum offering
maximum aggregate
Amount of
to be registered
registered (1)
price per unit
offering price
registration fee
Common Units, representing
limited partner interests
3,000,000 units
$
23.875
(2)
$
71,625,000
(2)
$
5,107
(1)
Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities
Act"), there are also being registered such additional Common Units as may become issuable
pursuant to the adjustment provisions of the PAA Natural Gas Storage, L.P. 2010 Long Term
Incentive Plan. In addition, pursuant to Rule 416(c) under the Securities Act, this
registration statement also covers an indeterminate amount of interests to be offered or sold
pursuant to the plan described herein.
(2)
Estimated solely for purposes of calculating the registration fee in accordance with Rules
457(c) and 457(h) under the Securities Act. The price for the 3,000,000 Common Units being
registered hereby is based on a price of $23.875, which is the average of the high and low
prices per Common Unit of PAA Natural Gas Storage, L.P. as reported by the New York Stock
Exchange on June 10, 2010.
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
PAA Natural Gas Storage, L.P. (the "Registrant") will send or give to all
participants in the PAA Natural Gas Storage, L.P. 2010 Long Term Incentive Plan (the
"Plan") the document(s) containing information required by Part I of Form S-8, as specified in Rule
428(b)(1) promulgated by the Securities and Exchange Commission (the "Commission") under the
Securities Act of 1933, as amended (the "Securities Act"). The Registrant has not filed such
document(s) with the Commission, but such documents (along with the documents incorporated by
reference into this Form S-8 Registration Statement (the "Registration Statement") pursuant to Item
3 of Part II hereof) shall constitute a prospectus that meets the requirements of Section 10(a) of
the Securities Act.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.
Incorporation of Documents by Reference.
Except to the extent that information is deemed furnished and not filed pursuant to securities
laws and regulations, the Registrant hereby incorporates by reference into this Registration
Statement the following documents:
(a) The Registrant's prospectus filed pursuant to Rule 424(b) under the Securities Act (File
No. 333-164492) relating to the Registrant's Registration Statement on Form S-1, filed with the
Commission on May 3, 2010;
(b) The Registrant's Current Report on Form 8-K (File No. 001-34722) filed with the Commission
on May 4, 2010;
(c) The Registrant's Current Report on Form 8-K (File No. 001-34722) filed with the Commission
on May 11, 2010;
(d) The
Registrant's Quarterly Report on Form 10-Q (File No. 001-34722) filed with the Commission
on June 9, 2010; and
(e) The description of the Registrant's Common Units, representing limited partner interests,
contained in the Registrant's Registration Statement on Form 8-A (File No. 001-34722) filed with
the Commission on April 27, 2010, pursuant to Section 12(b) of the Exchange Act, including any
amendment or report filed for the purpose of updating such description.
Except to the extent that information is deemed furnished and not filed pursuant to securities
laws and regulations, all documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14
and 15(d) of the Exchange Act subsequent to the date hereof and prior to the filing of a
post-effective amendment that indicates that all securities offered have been sold or that
deregisters all securities then remaining unsold shall also be deemed to be incorporated by
reference herein and to be a part hereof from the dates of filing of such documents. Any statement
contained in a document incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Registration Statement to the extent that
a statement contained herein or in any other subsequently filed document which also is or is deemed
to be incorporated by reference herein modifies or supersedes such statement. Any statement so
modified or superseded shall not be deemed, except as so modified or superseded, to constitute a
part of this Registration Statement.
Item 4.
Description of Securities.
Not applicable.
Item 5.
Interests of Named Experts and Counsel.
Not applicable.
Item 6.
Indemnification of Directors and Officers.
Section 7.7 of the Registrant's Amended and Restated Agreement of Limited Partnership (the
"Partnership Agreement") provides that the Registrant will indemnify and hold harmless (1) PNGS GP
LLC (the "Company"), as its
general partner, (2) any departing general partner of the Registrant (a "Departing GP"), (3)
any person who is or was an affiliate of the Company or a Departing GP, (4) any person who is or
was a director, officer, partner, member, manager, fiduciary, agent or trustee of the Registrant,
any of its subsidiaries, the Company or a Departing GP, or any affiliate of any of the foregoing,
(5) any person who is or was serving at the request of the Company or a Departing GP or any
affiliate of the Company or a Departing GP as an officer, director, member, manager, partner,
fiduciary, agent or trustee of another person (provided, that such a person shall not be an
indemnitee by reason of providing, on a fee-for-services basis, trustee, fiduciary or custodial
services), and (6) any person the Company designates as an indemnitee for purposes of the
Partnership Agreement to the fullest extent permitted by law (subject to the limitations expressed
in the Partnership Agreement) from and against all claims, liabilities, costs, and expenses
(including legal expenses) incurred by the Company, a Departing GP, or any other person described
above. The indemnitee must not have acted in bad faith or engaged in fraud, willful misconduct
or, in the case of a criminal matter, acted with knowledge that his or her conduct was unlawful.
Thus, the Company, a Departing GP or the other persons indicated above could be indemnified for
negligent acts to the fullest extent permitted by law if the requirements specified in the
preceding sentence are satisfied.
Any indemnification described above will only be made out of the assets of the Registrant.
Unless the Company otherwise agrees, the Company will not be personally liable for or have any
obligation to contribute or lend funds or assets to the Registrant to enable the Registrant to
effectuate indemnification. No indemnification will be available to the Company or its affiliates
(other than the Registrant, its subsidiaries or any individual) with respect to their obligations
incurred pursuant to the Underwriting Agreement (as defined in the Partnership Agreement), the
Omnibus Agreement (as defined in the Partnership Agreement), the Tax Sharing Agreement (as defined
in the Partnership Agreement) or the Contribution Agreement (as defined in the Partnership
Agreement) other than obligations incurred by the Company on behalf of the Registrant.
Subject to any terms, conditions, or restrictions set forth in the Partnership Agreement,
Section 17-108 of the Delaware Revised Uniform Limited Partnership Act empowers a Delaware limited
partnership to indemnify and hold harmless any partner or other person from and against all claims
and demands whatsoever. In accordance with the Partnership Agreement, the Registrant may purchase
and maintain (or reimburse the Company or its affiliates for the cost of) insurance against
liabilities asserted against, and expenses incurred by, a person in connection with the
Registrant's activities, regardless of whether the Registrant would have the power to indemnify the
person against liabilities under the Partnership Agreement.
Item 7. Exemption from Registration Claimed.
Not applicable.
Item 8. Exhibits.
Unless otherwise indicated below as being incorporated by reference to another filing of the
Registrant with the Commission, each of the following exhibits is filed herewith:
Exhibit Number
Description
4.1
Certificate of Limited Partnership of PAA Natural Gas Storage, L.P. (incorporated
by reference to Exhibit 3.1 to the Registration Statement on Form S-1 (File No.
333-164492) filed on January 25, 2010).
4.2
Amended and Restated Agreement of Limited Partnership of PAA Natural Gas Storage,
L.P. (incorporated by reference to Exhibit 3.1 to the Current Report on Form 8-K
filed on May 11, 2010).
4.3
PAA Natural Gas Storage, L.P. 2010 Long Term Incentive Plan (incorporated by
reference to Exhibit 10.2 to the Current Report on Form 8-K filed on May 11, 2010).
4.4
Form of Grant of Phantom Units (with Distribution Equivalent Rights) under the PAA
Natural Gas Storage, L.P. 2010 Long Term Incentive Plan (incorporated by reference
to Exhibit 10.4 to Amendment No. 3 to the Registration Statement on Form S-1 (File
No. 333-164492) filed on April 13, 2010).
4.5
Form of Grant of Phantom Units (without Distribution Equivalent Rights) under the
PAA Natural Gas Storage, L.P. 2010 Long Term Incentive Plan (incorporated by
reference to Exhibit 10.5 to Amendment No. 3 to the Registration Statement on Form
S-1 (File No. 333-164492) filed on April 13, 2010).
Exhibit Number
Description
5.1*
Opinion of Vinson & Elkins LLP as to the legality of the securities being registered
23.1*
Consent of PricewaterhouseCoopers LLP
23.2*
Consent of Vinson & Elkins LLP (contained in Exhibit 5.1)
24.1*
Powers of Attorney (included on the signature page of this Registration Statement)
*
Filed herewith.
Item 9. Undertakings.
(a) The undersigned Registrant hereby undertakes:
(1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:
(i) to include any prospectus required by Section 10(a)(3) of the Securities Act;
(ii) to reflect in the prospectus any facts or events arising after the effective
date of the Registration Statement (or the most recent post-effective amendment thereof)
which, individually or in the aggregate, represent a fundamental change in the
information set forth in the Registration Statement. Notwithstanding the foregoing, any
increase or decrease in volume of securities offered (if the total dollar value of
securities offered would not exceed that which was registered) and any deviation from
the low or high end of the estimated maximum offering range may be reflected in the form
of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate,
the changes in volume and price represent no more than a 20 percent change in the
maximum aggregate offering price set forth in the "Calculation of Registration Fee"
table in the effective registration statement; and
(iii) to include any material information with respect to the plan of distribution
not previously disclosed in the Registration Statement or any material change to such
information in the Registration Statement;
provided, however,
that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information
required to be included in a post-effective amendment by those paragraphs is contained in
periodic reports filed with or furnished to the Commission by the Registrant pursuant to
Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in this
Registration Statement.
(2) That, for the purpose of determining any liability under the Securities Act, each
such post-effective amendment shall be deemed to be a new registration statement relating to
the securities offered therein, and the offering of such securities at that time shall be
deemed to be the initial
bona fide
offering thereof.
(3) To remove from registration by means of a post-effective amendment any of the
securities being registered which remain unsold at the termination of the offering.
(b) The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Registrant's annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the Registration Statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such securities at
that time shall be deemed to be the initial
bona fide
offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Securities Act and
is, therefore, unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or paid by a
director, officer or controlling person of the Registrant in the successful defense of any
action, suit or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in the opinion of
its counsel the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is against public policy as
expressed in the Securities Act and will be governed by the final adjudication of such
issue.
SIGNATURES
Pursuant to the requirements of the Securities Act, the Registrant certifies that it has
reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has
duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Houston, State of Texas, on
June 11, 2010.
PAA NATURAL GAS STORAGE, L.P.
By:
PNGS GP LLC, its general partner
By:
/s/ Greg L. Armstrong
Name:
Greg L. Armstrong
Title:
Chairman of the Board and
Chief Executive Officer
KNOWN ALL MEN BY THESE PRESENTS, that each person whose signature appears below authorizes and
appoints each of Richard K. McGee and Al Swanson, and each of them, severally, acting alone and
without the other, as his true and lawful attorney-in-fact and agent, with full power of
substitution and resubstitution, for him and in his name, place and stead in any and all capacities
to sign any and all amendments (including pre- and post-effective amendments) to this Registration
Statement and any additional registration statement pursuant to Rule 462(b) under the Securities
Act, and to file the same with all exhibits thereto, and other documents in connection therewith,
with the Commission, granting unto said attorneys-in-fact and agents, and each of them, full power
and authority to do and perform each and every act and thing requisite and necessary to be done, as
fully to all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, or his or their substitute
or substitutes may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act, this registration statement has been
signed by the following persons in the capacities and on the date indicated.
Signature
Title
Date
/s/
Greg L. Armstrong
Greg L. Armstrong
Chairman of the Board, Chief
Executive Officer and Director
(Principal Executive Officer)
June 11, 2010
/s/ Harry N. Pefanis
Harry N. Pefanis
Vice Chairman and Director
June 11, 2010
/s/ Dean Liollio
President and Director
June 11, 2010
Dean Liollio
/s/ Al Swanson
Senior Vice President, Chief
June 11, 2010
Al Swanson
Financial Officer and Director
(Principal Financial Officer)
/s/ Tina L. Summers
Vice President—Accounting and
June 11, 2010
Tina L. Summers
Chief Accounting Officer
(Principal Accounting Officer)
/s/ Victor Burk
Director
June 11, 2010
Victor Burk
/s/
Bobby S. Shackouls
Director
June 11, 2010
Bobby S. Shackouls
EXHIBIT INDEX
Exhibit Number
Description
4.1
Certificate of Limited Partnership
of PAA Natural Gas Storage, L.P. (incorporated by reference to
Exhibit 3.1 to the Registration Statement on Form S-1 (File No. 333-164492) filed on January 25, 2010).
4.2
Amended and Restated Agreement of
Limited Partnership of PAA Natural Gas Storage, L.P. (incorporated by
reference to Exhibit 3.1 to the Current Report on Form 8-K filed on May 11, 2010).
4.3
PAA Natural Gas Storage, L.P. 2010
Long Term Incentive Plan (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K filed on May 11, 2010).
4.4
Form of Grant of Phantom Units
(with Distribution Equivalent Rights) under the PAA Natural Gas
Storage, L.P. 2010 Long Term Incentive Plan (incorporated by
reference to Exhibit 10.4 to Amendment No. 3 to the Registration Statement on Form S-1 (File No. 333-164492) filed on April 13, 2010).
4.5
Form of Grant of Phantom Units
(without Distribution Equivalent Rights) under the PAA Natural Gas
Storage, L.P. 2010 Long Term Incentive Plan (incorporated by
reference to Exhibit 10.5 to Amendment No. 3 to the Registration Statement on Form S-1 (File No. 333-164492) filed on April 13, 2010).
5.1*
Opinion of Vinson & Elkins LLP as to the legality of the securities being registered
23.1*
Consent of PricewaterhouseCoopers LLP
23.2*
Consent of Vinson & Elkins LLP (contained in Exhibit 5.1)
24.1*
Powers of Attorney (included on the signature page of this Registration Statement)
*
Filed herewith.