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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>As filed with the Securities and Exchange Commission on June 21, 2010</B></DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registration No.&nbsp;333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</DIV>

<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt; margin-top: 3pt">&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: 12pt"><B><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</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: 0pt"><B>REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933</B>
</DIV>


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

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>OASIS PETROLEUM INC.</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="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<TR></TR>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>80-0554627</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">(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">Identification No.)</TD>
</TR>
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</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>1001 Fannin Street, Suite&nbsp;202<BR>
Houston, Texas 77002<BR>
(713)&nbsp;574-1770</B><BR>
(Address of principal executive offices, including zip code)</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>OASIS PETROLEUM INC. 2010 LONG TERM INCENTIVE PLAN</B><BR>
(Full title of the plan)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Thomas B. Nusz<BR>
Chairman, President and Chief Executive Officer<BR>
Oasis Petroleum Inc.<BR>
1001 Fannin Street, Suite&nbsp;202<BR>
Houston, Texas 77002<BR>
(713)&nbsp;574-1770</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: 12pt"><B>T. Mark Kelly<BR>
David P. Oelman<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>

<TABLE width="100%" style="FONT-size: 10pt; margin-top: 3pt">
<TR valign="top" style="font-weight: bold"><TD>Large accelerated filer&nbsp;<FONT style="font-family: Wingdings">&#111;</FONT></TD>
<TD align="center">Accelerated filer&nbsp;<FONT style="font-family: Wingdings">&#111;</FONT>&nbsp;</TD>
<TD align="center">Non-accelerated filer&nbsp;<FONT style="font-family: Wingdings">&#254;</FONT><BR>(Do not check if a smaller reporting company)</TD>
<TD align="right">Smaller Reporting Company&nbsp;<FONT style="font-family: Wingdings">&#111;</FONT></TD></TR></TABLE>



<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%">
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<TR valign="bottom" style="font-size: 1pt">
    <TD width="1%">&nbsp;</TD>
    <TD width="54%">&nbsp;</TD>
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    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
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    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" 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="3">Proposed</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Proposed</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&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="3">Amount to be</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">maximum offering</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">maximum aggregate</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Amount of</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="3">registered (1)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">price per share</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">offering price</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">registration fee</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

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    <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 Stock, $0.001 par value</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD colspan="3" align="center" style="border-top: 2px solid #000000" nowrap>7,200,000 shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">14.73</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="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">106,056,000</TD>
    <TD nowrap style="border-top: 2px solid #000000">(2)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">7,561.79</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="23" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

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


<DIV style="margin-top:3pt">
<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 shares of Common Stock as may become issuable
pursuant to the adjustment provisions of the Oasis Petroleum Inc. 2010 Long Term Incentive
Plan.</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 7,200,000 shares being
registered hereby is based on a price of $14.73, which is the average of the high and low
prices of our Common Stock as reported by the New York Stock Exchange on June 17,
2010.</TD>
</TR>

</TABLE>
</div>



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








<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
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</TR>
<TR><TD colspan="9"><A HREF="#000">PART I<BR> INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">PART II<BR> INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;3 Incorporation of Documents by Reference.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;4. Description of Securities.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;5. Interests of Named Experts and Counsel.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;6. Indemnification of Directors and Officers.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;7. Exemption from Registration Claimed.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;8. Exhibits.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;9. Undertakings.</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#010"><U>EXHIBIT INDEX</U></A></TD></TR>
<TR><TD colspan="9"><A HREF="h73933exv5w1.htm">EX-5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="h73933exv23w1.htm">EX-23.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="h73933exv23w2.htm">EX-23.2</A></TD></TR>
<TR><TD colspan="9"><A HREF="h73933exv23w3.htm">EX-23.3</A></TD></TR>
</TABLE>
</CENTER>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>






<!-- link1 "PART I<BR> INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS" -->
<DIV align="left"><A NAME="000"></A></DIV>

<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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Oasis Petroleum Inc. (the &#147;Registrant&#148;) will send or give to all participants in the
Oasis Petroleum Inc. 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&nbsp;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&nbsp;3 of Part&nbsp;II hereof) shall constitute a
prospectus that meets the requirements of Section 10(a) of the Securities Act.
</DIV>

<!-- link1 "PART II<BR> INFORMATION REQUIRED IN THE REGISTRATION STATEMENT" -->
<DIV align="left"><A NAME="001"></A></DIV>

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

<!-- link2 "Item&nbsp;3 Incorporation of Documents by Reference." -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&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 style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s prospectus filed pursuant to Rule 424(b) under the
Securities Act (File No.&nbsp;333-165212) relating to the Registrant&#146;s Registration
Statement on Form S-1, filed with the Commission on June 17, 2010; and</TD>
</TR>



<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The description of the Registrant&#146;s Common Stock contained in the
Registrant&#146;s Registration Statement on Form 8-A (File No.&nbsp;001-34776) filed with the
Commission on June&nbsp;14, 2010, pursuant to Section 12(b) of the Exchange Act,
including any amendment or report filed for the purpose of updating such
description.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&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>

<!-- link2 "Item&nbsp;4. Description of Securities." -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities.</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>

<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel." -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</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>

<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers." -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of Directors and Officers.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s certificate of incorporation limits the liability of the directors for
monetary damages for breach of their fiduciary duty as directors, except for liability that cannot
be eliminated under the Delaware General Corporation Law. Delaware law provides that directors of a
company will not be personally liable for monetary damages for breach of their fiduciary duty as
directors, except for liabilities:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for any breach of their duty of loyalty to the company or the company&#146;s stockholders;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for acts or omissions not in good faith or which involve intentional misconduct or a
knowing violation of law;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for unlawful payment of dividends or unlawful stock repurchase or redemption, as provided
under Section&nbsp;174 of the Delaware General Corporation Law; or</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for any transaction from which the director derived an improper personal benefit.</TD>
</TR>




</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->2<!-- /Folio -->
</DIV>

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<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any amendment, repeal or modification of these provisions will be prospective only and would
not affect any limitation on liability of a director for acts or omissions that occurred prior to
any such amendment, repeal or modification.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s certificate of incorporation and bylaws also provide that the Registrant will
indemnify the directors and officers to the fullest extent permitted by Delaware law. The
Registrant&#146;s certificate of incorporation and bylaws also permit the Registrant to purchase
insurance on behalf of any officer, director, employee or other agent for any liability arising out
of that person&#146;s actions as an officer, director, employee or agent, regardless of whether Delaware
law would permit indemnification. The Registrant intends to enter into indemnification agreements
with each of the Registrant&#146;s current and future directors and officers. These agreements will
require the Registrant to indemnify these individuals to the fullest extent permitted under
Delaware law against liability that may arise by reason of their service to the Registrant, and to
advance expenses incurred as a result of any proceeding against them as to which they could be
indemnified.
</DIV>

<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed." -->
<DIV align="left"><A NAME="006"></A></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>

<!-- link2 "Item&nbsp;8. Exhibits." -->
<DIV align="left"><A NAME="007"></A></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="7%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="90%">&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="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">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Certificate of Incorporation of Oasis Petroleum Inc.
(incorporated by reference to Exhibit&nbsp;3.1 to Amendment No.&nbsp;4 to the Company&#146;s Form
S-1 Registration Statement filed with the Commission on May&nbsp;19, 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 Bylaws of Oasis Petroleum Inc. (incorporated by reference to
Exhibit&nbsp;3.2 to Amendment No.&nbsp;4 to the Company&#146;s Form&nbsp;S-1 Registration Statement
filed with the Commission on May&nbsp;19, 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">Form of Common Stock Certificate (incorporated by reference to Exhibit&nbsp;4.1 to
Amendment No.&nbsp;4 to the Company&#146;s Form&nbsp;S-1 Registration Statement filed with the Commission on May&nbsp;19,
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">Oasis Petroleum Inc. 2010 Long Term Incentive Plan (incorporated by reference to
Exhibit&nbsp;10.6 to Amendment No.&nbsp;4 to the Company&#146;s Form&nbsp;S-1 Registration Statement
filed with the Commission on May&nbsp;19, 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">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 W.D. Von Gonten &#038; Co.</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">23.3*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of DeGolyer and MacNaughton</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">23.4*
</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>


<!-- link2 "Item&nbsp;9. Undertakings." -->
<DIV align="left"><A NAME="008"></A></DIV>

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


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The undersigned Registrant hereby undertakes:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="10%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To file, during any period in which offers or sales are being
made, a post-effective amendment to this Registration Statement:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="14%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(i)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>to include any prospectus required by Section
10(a)(3) of the Securities Act;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="14%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(ii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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</TD>
</TR>

</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->3<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

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


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #textcolor#; background: #bgcolor#">
    <TD width="14%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>price set forth in the &#147;Calculation of Registration Fee&#148; table in the
effective registration statement; and</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="14%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(iii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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;</TD>
</TR>

</TABLE>
</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 style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="10%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="10%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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.</TD>
</TR>

</TABLE>
</DIV>






<P align="center" style="font-size: 10pt"><!-- Folio -->4<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="009"></A></DIV>

<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;&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 21, 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"><BR>
OASIS PETROLEUM INC.<BR>
&nbsp;</TD>
    <TD>&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/ Thomas B. Nusz&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Name:&nbsp;&nbsp;</TD>
    <TD align="left">Thomas B. Nusz&nbsp;</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, President and<br> Chief Executive Officer&nbsp;</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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KNOWN ALL MEN BY THESE PRESENTS, that each person whose signature appears below authorizes and
appoints each of Thomas B. Nusz and Taylor L. Reid, 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
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">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;&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="left" style="border-bottom: 1px solid #000000">Signature</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Title</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Date</TD>
</TR>

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

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Thomas B. Nusz
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Thomas B. Nusz
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chairman, President and Chief
Executive Officer<br>
(Principal Executive Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June 21, 2010</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Taylor L. Reid
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Taylor L. Reid
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director, Executive Vice President
and Chief Operating Officer
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June 21, 2010</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Roy W. Mace
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Roy W. Mace
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Senior Vice President, Chief
Accounting Officer and Corporate
Secretary<br>
(Principal Financial Officer and
Principal Accounting Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June 21, 2010</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Michael McShane
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Michael McShane
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June 21, 2010</TD>
</TR>

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

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
Douglas E. Swanson, Jr.
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Douglas E. Swanson, Jr.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June 21, 2010</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Robert L. Zorich
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Robert L. Zorich
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June 21, 2010</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->5<!-- /Folio -->
</DIV>
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

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

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    <TD width="7%">&nbsp;</TD>
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<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="center" style="border-bottom: 1px solid #000000">Description</TD>
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    <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">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Certificate of Incorporation of Oasis Petroleum Inc.
(incorporated by reference to Exhibit&nbsp;3.1 to Amendment No.&nbsp;4 to the Company&#146;s Form
S-1 Registration Statement filed with the Commission on May&nbsp;19, 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 Bylaws of Oasis Petroleum Inc. (incorporated by reference to
Exhibit&nbsp;3.2 to Amendment No.&nbsp;4 to the Company&#146;s Form&nbsp;S-1 Registration Statement
filed with the Commission on May&nbsp;19, 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">Form of Common Stock Certificate (incorporated by reference to Exhibit&nbsp;4.1 to
Amendment No.&nbsp;4 to the Company&#146;s Form&nbsp;S-1 Registration
Statement filed with the Commission on May&nbsp;19,
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">Oasis Petroleum Inc. 2010 Long Term Incentive Plan (incorporated by reference to
Exhibit&nbsp;10.6 to Amendment No.&nbsp;4 to the Company&#146;s Form&nbsp;S-1 Registration Statement
filed with the Commission on May&nbsp;19, 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">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>
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    <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 W.D. Von Gonten &#038; Co.</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">23.3*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of DeGolyer and MacNaughton</TD>
</TR>
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</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.4*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Vinson &#038; Elkins LLP (contained in Exhibit&nbsp;5.1)</TD>
</TR>
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    <TD>&nbsp;</TD>
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<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>
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    <TD>Filed herewith.</TD>
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sv8
Table of Contents
As filed with the Securities and Exchange Commission on June 21, 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
OASIS PETROLEUM INC.
(Exact name of registrant as specified in its charter)
Delaware
80-0554627
(State or other jurisdiction of
(I.R.S. Employer
incorporation or organization)
Identification No.)
1001 Fannin Street, Suite 202
Houston, Texas 77002
(713) 574-1770
(Address of principal executive offices, including zip code)
OASIS PETROLEUM INC. 2010 LONG TERM INCENTIVE PLAN
(Full title of the plan)
Thomas B. Nusz
Chairman, President and Chief Executive Officer
Oasis Petroleum Inc.
1001 Fannin Street, Suite 202
Houston, Texas 77002
(713) 574-1770
(Name, address and telephone number of agent for service)
copy to:
T. Mark Kelly
David P. Oelman
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
(Do not check if a smaller reporting company)
Smaller Reporting Company
o
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 share
offering price
registration fee
Common Stock, $0.001 par value
7,200,000 shares
$
14.73
(2)
$
106,056,000
(2)
$
7,561.79
(1)
Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities
Act"), there are also being registered such additional shares of Common Stock as may become issuable
pursuant to the adjustment provisions of the Oasis Petroleum Inc. 2010 Long Term Incentive
Plan.
(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 7,200,000 shares being
registered hereby is based on a price of $14.73, which is the average of the high and low
prices of our Common Stock as reported by the New York Stock Exchange on June 17,
2010.
TABLE OF CONTENTS
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3 Incorporation of Documents by Reference.
Item 4. Description of Securities.
Item 5. Interests of Named Experts and Counsel.
Item 6. Indemnification of Directors and Officers.
Item 7. Exemption from Registration Claimed.
Item 8. Exhibits.
Item 9. Undertakings.
SIGNATURES
EXHIBIT INDEX
EX-5.1
EX-23.1
EX-23.2
EX-23.3
Table of Contents
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
Oasis Petroleum Inc. (the "Registrant") will send or give to all participants in the
Oasis Petroleum Inc. 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. 333-165212) relating to the Registrant's Registration
Statement on Form S-1, filed with the Commission on June 17, 2010; and
(b)
The description of the Registrant's Common Stock contained in the
Registrant's Registration Statement on Form 8-A (File No. 001-34776) filed with the
Commission on June 14, 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.
The Registrant's certificate of incorporation limits the liability of the directors for
monetary damages for breach of their fiduciary duty as directors, except for liability that cannot
be eliminated under the Delaware General Corporation Law. Delaware law provides that directors of a
company will not be personally liable for monetary damages for breach of their fiduciary duty as
directors, except for liabilities:
•
for any breach of their duty of loyalty to the company or the company's stockholders;
•
for acts or omissions not in good faith or which involve intentional misconduct or a
knowing violation of law;
•
for unlawful payment of dividends or unlawful stock repurchase or redemption, as provided
under Section 174 of the Delaware General Corporation Law; or
•
for any transaction from which the director derived an improper personal benefit.
2
Table of Contents
Any amendment, repeal or modification of these provisions will be prospective only and would
not affect any limitation on liability of a director for acts or omissions that occurred prior to
any such amendment, repeal or modification.
The Registrant's certificate of incorporation and bylaws also provide that the Registrant will
indemnify the directors and officers to the fullest extent permitted by Delaware law. The
Registrant's certificate of incorporation and bylaws also permit the Registrant to purchase
insurance on behalf of any officer, director, employee or other agent for any liability arising out
of that person's actions as an officer, director, employee or agent, regardless of whether Delaware
law would permit indemnification. The Registrant intends to enter into indemnification agreements
with each of the Registrant's current and future directors and officers. These agreements will
require the Registrant to indemnify these individuals to the fullest extent permitted under
Delaware law against liability that may arise by reason of their service to the Registrant, and to
advance expenses incurred as a result of any proceeding against them as to which they could be
indemnified.
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
Amended and Restated Certificate of Incorporation of Oasis Petroleum Inc.
(incorporated by reference to Exhibit 3.1 to Amendment No. 4 to the Company's Form
S-1 Registration Statement filed with the Commission on May 19, 2010).
4.2
Amended and Restated Bylaws of Oasis Petroleum Inc. (incorporated by reference to
Exhibit 3.2 to Amendment No. 4 to the Company's Form S-1 Registration Statement
filed with the Commission on May 19, 2010).
4.3
Form of Common Stock Certificate (incorporated by reference to Exhibit 4.1 to
Amendment No. 4 to the Company's Form S-1 Registration Statement filed with the Commission on May 19,
2010).
4.4
Oasis Petroleum Inc. 2010 Long Term Incentive Plan (incorporated by reference to
Exhibit 10.6 to Amendment No. 4 to the Company's Form S-1 Registration Statement
filed with the Commission on May 19, 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 W.D. Von Gonten & Co.
23.3*
Consent of DeGolyer and MacNaughton
23.4*
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
3
Table of Contents
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.
4
Table of Contents
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 21, 2010.
OASIS PETROLEUM INC.
By:
/s/ Thomas B. Nusz
Name:
Thomas B. Nusz
Title:
Chairman, President and
Chief Executive Officer
KNOWN ALL MEN BY THESE PRESENTS, that each person whose signature appears below authorizes and
appoints each of Thomas B. Nusz and Taylor L. Reid, 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/ Thomas B. Nusz
Thomas B. Nusz
Chairman, President and Chief
Executive Officer
(Principal Executive Officer)
June 21, 2010
/s/ Taylor L. Reid
Taylor L. Reid
Director, Executive Vice President
and Chief Operating Officer
June 21, 2010
/s/ Roy W. Mace
Roy W. Mace
Senior Vice President, Chief
Accounting Officer and Corporate
Secretary
(Principal Financial Officer and
Principal Accounting Officer)
June 21, 2010
/s/ Michael McShane
Michael McShane
Director
June 21, 2010
/s/
Douglas E. Swanson, Jr.
Douglas E. Swanson, Jr.
Director
June 21, 2010
/s/ Robert L. Zorich
Robert L. Zorich
Director
June 21, 2010
5
Table of Contents
EXHIBIT INDEX
Exhibit Number
Description
4.1
Amended and Restated Certificate of Incorporation of Oasis Petroleum Inc.
(incorporated by reference to Exhibit 3.1 to Amendment No. 4 to the Company's Form
S-1 Registration Statement filed with the Commission on May 19, 2010).
4.2
Amended and Restated Bylaws of Oasis Petroleum Inc. (incorporated by reference to
Exhibit 3.2 to Amendment No. 4 to the Company's Form S-1 Registration Statement
filed with the Commission on May 19, 2010).
4.3
Form of Common Stock Certificate (incorporated by reference to Exhibit 4.1 to
Amendment No. 4 to the Company's Form S-1 Registration
Statement filed with the Commission on May 19,
2010).
4.4
Oasis Petroleum Inc. 2010 Long Term Incentive Plan (incorporated by reference to
Exhibit 10.6 to Amendment No. 4 to the Company's Form S-1 Registration Statement
filed with the Commission on May 19, 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 W.D. Von Gonten & Co.
23.3*
Consent of DeGolyer and MacNaughton
23.4*
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.