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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K</B></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Date of Report (Date of earliest event reported<B>):
October 3, 2012</B></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Mesa Energy Holdings, Inc.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact name of registrant as specified in
its charter)</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 30%; padding-right: 0.8pt; font-weight: bold; text-align: center">Delaware</TD>
    <TD STYLE="width: 40%; padding-right: 0.8pt; font-weight: bold; text-align: center">333-149338</TD>
    <TD STYLE="width: 30%; padding-right: 0.8pt; font-weight: bold; text-align: center">98-0506246</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center">(State or Other Jurisdiction</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center">(Commission File</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center">(I.R.S. Employer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center">of Incorporation)</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center">Number)</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center">Identification Number)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>5220 Spring Valley Road<BR>
Suite 525<BR>
Dallas, TX 75254</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Address of principal executive offices,
including zip code)</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(972) 490-9595</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Registrant&rsquo;s telephone number, including
area code)</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Not applicable</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Former name or former address, if changed
since last report)</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction
A.2. below):</P>

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

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

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Wingdings">o</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Written communications pursuant to Rule 425 under the Securities Act
(17 CFR 230.425)</FONT></TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Wingdings">o</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Soliciting material pursuant to Rule 14a-12 under the Exchange Act
(17 CFR 240.14a-12)</FONT></TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Wingdings">o</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))</FONT></TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Wingdings">o</FONT></TD><TD><FONT STYLE="font-family: Times New Roman, Times, Serif">Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))</FONT></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 7.01&#9;Regulation FD Disclosure</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Armada Oil, Inc. (&ldquo;Armada Oil&rdquo;)
and Mesa Energy Holdings, Inc. (&ldquo;Mesa Energy&rdquo;) have entered into a non-binding Letter of Intent to pursue a business
combination. The closing of the business combination is subject to further due diligence, negotiation and execution of definitive
agreements, as well as necessary consents and approvals. The Board of Directors of both Armada Oil and Mesa Energy have unanimously
approved the key terms of the proposed transaction and have authorized their respective management to pursue the transaction.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The non-binding Letter of Intent provides
that Armada Oil would issue 0.325 shares of its common stock to the shareholders of Mesa Energy in exchange for each Mesa Energy
common share, representing an approximately 134% premium to Mesa Energy&rsquo;s most recent close of $0.168 on October 3<SUP>rd</SUP>,
2012. The proposed transaction would result in the current holders of equity securities of Mesa Energy owning approximately 57%
of the combined company common stock, and the equity holders of Armada Oil owning approximately 43% of the combined company common
stock (each on an actual basis, without giving effect to conversion or exercise of any convertible securities, options or warrants),
prior to the effect of any future capital financing transactions by either company. The surviving entity would retain the name
of Armada Oil, Inc. and be headquartered in Dallas, TX.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In addition, it is contemplated that:</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">Executive management would consist of
three senior management members from Mesa Energy (Mr. Randy M. Griffin, Chief Executive Officer; Mr. Ray L. Unruh, Chief Operating
Officer; and Ms. Rachel L. Dillard, Chief Financial Officer) and one senior management member from Armada Oil (Mr. James J. Cerna,
Jr., President).</FONT></TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">The new Board of Directors would consist
of five legacy directors: Mr. Randy M. Griffin (Chairman), Mr. Ray L. Unruh, Mr. James J. Cerna, Jr., Mr. David J. Moss, Mr. Kenneth
T. Hern, and two additional independent members to be mutually agreed on and selected.</FONT></TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">It is anticipated that following the closing
of the merger Armada Oil will conduct a reverse stock split to the extent necessary to facilitate the listing of Armada Oil&rsquo;s
common shares on a national exchange such as the NYSE MKT (formerly the NYSE-AMEX).</FONT></TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The terms of the letter of intent are non-binding
and subject to change.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">C. K. Cooper &amp; Company is serving as
financial advisor on the transaction. It is the goal of both Armada Oil and Mesa Energy to close this anticipated transaction by
the end of this year.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The completion of the described transactions
is conditioned on, among other things, the parties being satisfied with the results of their respective due diligence, each party
obtaining all required consents and approvals, including all legal and regulatory approvals and all applicable shareholder and
board of directors approvals and any necessary approvals from third parties, agreement on all final terms and conditions and negotiation
of definitive agreements, and there having occurred no material adverse change in the business or condition, financial or otherwise,
of either party. Mesa Energy can provide no assurances that these conditions will be satisfied. Management cautions investors against
making investment decisions based on any expectation that the proposed transaction will be consummated, because, in its view, such
expectations are speculative.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Investor Conference Call</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Armada Oil and Mesa Energy will host a
joint conference call on October 4<SUP>th</SUP>, 2012 to discuss the proposed transaction at 2:00PM EDT / 1:00PM CDT / 11:00AM
PDT. Investors may participate in the conference call via telephone by dialing (877) 266-0479 for domestic callers or (678) 894-3048
for international callers, in both cases using conference ID 37896137, and asking for the &ldquo;Armada Oil / Mesa Energy Call&rdquo;
a few minutes prior to the start time. The accompanying slide presentation for the call is furnished as an exhibit to this Form
8-K and can also be found on either Company&rsquo;s website.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">A replay of the call will be available
at (855) 859-2056 for domestic callers or (404) 537-3406 for international callers until October 12<SUP>th</SUP>, 2012 using the
same conference ID of 37896137.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Forward-Looking Statements</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This press release contains forward-looking
statements, including with respect to the negotiation, implementation and effects of a proposed business combination between Mesa
Energy and Armada Oil that may result from the non-binding term sheet. Those statements and statements made in this release that
are not historical in nature, including those related to future synergies, competitive advantages and profitability, constitute
forward-looking statements. Forward-looking statements can be identified by the use of words such as &ldquo;expects,&rdquo; &ldquo;projects,&rdquo;
&ldquo;plans,&rdquo; &ldquo;will,&rdquo; &ldquo;may,&rdquo; &ldquo;anticipates,&rdquo; believes,&rdquo; &ldquo;should,&rdquo; &ldquo;intends,&rdquo;
&ldquo;estimates,&rdquo; and other words of similar meaning. These statements are based on current plans, estimates and projections,
and, therefore, you should not place undue reliance on them. These statements are subject to risks and uncertainties that cannot
be predicted or quantified, and Mesa Energy&rsquo;s or Armada Oil&rsquo;s actual results may differ materially from those expressed
or implied by such forward-looking statements. These statements are subject to the risks and uncertainties, including: difficulties,
delays, unexpected costs or the inability to reach definitive documents with respect to, or consummate, the proposed business combination
and other transactions referred to in this press release and those described in the documents we file with the U. S. Securities
and Exchange Commission, and risks associated with the inherent uncertainty of Mesa Energy&rsquo;s and Armada Oil&rsquo;s future
financial results, Mesa Energy&rsquo;s or Armada Oil&rsquo;s ability to locate and acquire suitable interests in oil and gas properties
on terms acceptable to them and to integrate and successfully exploit any resulting acquisitions, the availability and pricing
of additional capital to finance their respective operations and leasehold acquisitions, their respective ability to build and
maintain successful operations infrastructures, the intensity of competition, changes and volatility in energy prices and general
economic conditions. All forward-looking statements included in this release are made as of the date of this press release, and
neither Mesa Energy nor Armada Oil assumes any obligation to update any such forward-looking statements.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Statement Regarding Additional Information
That May Become Available</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">If a transaction is to be proposed to the
stockholders of Mesa Energy, Mesa Energy and Armada Oil would file with the Securities and Exchange Commission and distribute a
Registration Statement on Form S-4 covering securities to be issued in the transaction. It is expected that Mesa Energy shareholders
would receive a prospectus and proxy statement or information statement, as applicable, in connection with such transaction. The
final terms of the prospective transaction remain subject to change and would only be reflected in a binding definitive agreement
that remains to be negotiated between the companies. A copy of the definitive merger agreement would be filed along with the prospectus
and proxy statement /information statement. Mesa Energy stockholders would be urged to read these and any other related documents
the corporation may issue. If and when these documents are filed, they will be available for free at the SEC&rsquo;s website, www.sec.gov.
Additional information on how to obtain these documents from Mesa Energy would be made available to stockholders if and when a
transaction is to occur. Such documents are not currently available.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>No Offer or Solicitation to Sell</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This communication shall not constitute
an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of securities in any jurisdiction in which
such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such
jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of
the Securities Act of 1933, as amended. Mesa Energy, its directors and executive officers, may be deemed to be participants in
the solicitation of proxies or consents from Mesa Energy&rsquo;s stockholders in connection with any transaction that might be
proposed to such stockholders. Information about the directors and executive officers of Mesa Energy and their ownership of Mesa
Energy and Armada Oil stock will be included in the prospectuses and proxy/consent solicitation statements if and when they become
available.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 9.01&#9;Financial Statements and
Exhibits</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(d) Exhibits</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><I>The following exhibit is being furnished
and shall not be deemed &ldquo;filed&rdquo; with the SEC for purposes of Section 18 of the Exchange Act, or otherwise subject to
the liability of that section, and shall not be deemed to be incorporated by reference into any filing under the Securities Act
or the Exchange Act, except to the extent that the Registrant specifically incorporates it by reference.</I></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 13%; border-bottom: black 1pt solid; font-weight: bold">Exhibit Number</TD>
    <TD STYLE="width: 87%; border-bottom: black 1pt solid; font-weight: bold">&nbsp;&nbsp;&nbsp; Description</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

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

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<TR STYLE="vertical-align: top">
    <TD STYLE="width: 13%; text-align: justify">99.1</TD>
    <TD STYLE="width: 87%; text-align: justify">Investor Presentation dated October 3, 2012</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</P>

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

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

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<TR STYLE="vertical-align: top">
    <TD STYLE="font-weight: bold">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-weight: bold">Mesa Energy Holdings, Inc.</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%">&nbsp;</TD>
    <TD STYLE="width: 3%">&nbsp;</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 27%">&nbsp;</TD>
    <TD STYLE="width: 15%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>Date: October 3, 2012</TD>
    <TD>By:</TD>
    <TD COLSPAN="2" STYLE="font-style: italic; border-bottom: Black 1pt solid">/s/ Randy M. Griffin</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Name:</TD>
    <TD>Randy M. Griffin</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Title:</TD>
    <TD>Chief Executive Officer</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>
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[{"type": "8-K", "sequence": "1", "filename": "v325008_8-k.htm", "description": "FORM 8-K", "secsgml_size_bytes": 28484}]
{"company-data": {"conformed-name": "Mesa Energy Holdings, Inc.", "cik": "0001425597", "assigned-sic": "1000", "irs-number": "261324237", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-53972", "film-number": "121127632"}, "business-address": {"street1": "5220 SPRING VALLEY RD.", "street2": "SUITE 525", "city": "DALLAS", "state": "TX", "zip": "75254", "phone": "(972) 490-9595"}, "mail-address": {"street1": "5220 SPRING VALLEY RD.", "street2": "SUITE 525", "city": "DALLAS", "state": "TX", "zip": "75254"}, "former-company": {"former-conformed-name": "Mesquite Mining Inc.", "date-changed": "20080130"}}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported
):
October 3, 2012
Mesa Energy Holdings, Inc.
(Exact name of registrant as specified in
its charter)
Delaware
333-149338
98-0506246
(State or Other Jurisdiction
(Commission File
(I.R.S. Employer
of Incorporation)
Number)
Identification Number)
5220 Spring Valley Road
Suite 525
Dallas, TX 75254
(Address of principal executive offices,
including zip code)
(972) 490-9595
(Registrant's telephone number, including
area code)
Not applicable
(Former name or former address, if changed
since last report)
Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction
A.2. below):
o
Written communications pursuant to Rule 425 under the Securities Act
(17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act
(17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))
Item 7.01	Regulation FD Disclosure
Armada Oil, Inc. ("Armada Oil")
and Mesa Energy Holdings, Inc. ("Mesa Energy") have entered into a non-binding Letter of Intent to pursue a business
combination. The closing of the business combination is subject to further due diligence, negotiation and execution of definitive
agreements, as well as necessary consents and approvals. The Board of Directors of both Armada Oil and Mesa Energy have unanimously
approved the key terms of the proposed transaction and have authorized their respective management to pursue the transaction.
The non-binding Letter of Intent provides
that Armada Oil would issue 0.325 shares of its common stock to the shareholders of Mesa Energy in exchange for each Mesa Energy
common share, representing an approximately 134% premium to Mesa Energy's most recent close of $0.168 on October 3
rd
,
2012. The proposed transaction would result in the current holders of equity securities of Mesa Energy owning approximately 57%
of the combined company common stock, and the equity holders of Armada Oil owning approximately 43% of the combined company common
stock (each on an actual basis, without giving effect to conversion or exercise of any convertible securities, options or warrants),
prior to the effect of any future capital financing transactions by either company. The surviving entity would retain the name
of Armada Oil, Inc. and be headquartered in Dallas, TX.
In addition, it is contemplated that:
·
Executive management would consist of
three senior management members from Mesa Energy (Mr. Randy M. Griffin, Chief Executive Officer; Mr. Ray L. Unruh, Chief Operating
Officer; and Ms. Rachel L. Dillard, Chief Financial Officer) and one senior management member from Armada Oil (Mr. James J. Cerna,
Jr., President).
·
The new Board of Directors would consist
of five legacy directors: Mr. Randy M. Griffin (Chairman), Mr. Ray L. Unruh, Mr. James J. Cerna, Jr., Mr. David J. Moss, Mr. Kenneth
T. Hern, and two additional independent members to be mutually agreed on and selected.
·
It is anticipated that following the closing
of the merger Armada Oil will conduct a reverse stock split to the extent necessary to facilitate the listing of Armada Oil's
common shares on a national exchange such as the NYSE MKT (formerly the NYSE-AMEX).
The terms of the letter of intent are non-binding
and subject to change.
C. K. Cooper & Company is serving as
financial advisor on the transaction. It is the goal of both Armada Oil and Mesa Energy to close this anticipated transaction by
the end of this year.
The completion of the described transactions
is conditioned on, among other things, the parties being satisfied with the results of their respective due diligence, each party
obtaining all required consents and approvals, including all legal and regulatory approvals and all applicable shareholder and
board of directors approvals and any necessary approvals from third parties, agreement on all final terms and conditions and negotiation
of definitive agreements, and there having occurred no material adverse change in the business or condition, financial or otherwise,
of either party. Mesa Energy can provide no assurances that these conditions will be satisfied. Management cautions investors against
making investment decisions based on any expectation that the proposed transaction will be consummated, because, in its view, such
expectations are speculative.
2
Investor Conference Call
Armada Oil and Mesa Energy will host a
joint conference call on October 4
th
, 2012 to discuss the proposed transaction at 2:00PM EDT / 1:00PM CDT / 11:00AM
PDT. Investors may participate in the conference call via telephone by dialing (877) 266-0479 for domestic callers or (678) 894-3048
for international callers, in both cases using conference ID 37896137, and asking for the "Armada Oil / Mesa Energy Call"
a few minutes prior to the start time. The accompanying slide presentation for the call is furnished as an exhibit to this Form
8-K and can also be found on either Company's website.
A replay of the call will be available
at (855) 859-2056 for domestic callers or (404) 537-3406 for international callers until October 12
th
, 2012 using the
same conference ID of 37896137.
Forward-Looking Statements
This press release contains forward-looking
statements, including with respect to the negotiation, implementation and effects of a proposed business combination between Mesa
Energy and Armada Oil that may result from the non-binding term sheet. Those statements and statements made in this release that
are not historical in nature, including those related to future synergies, competitive advantages and profitability, constitute
forward-looking statements. Forward-looking statements can be identified by the use of words such as "expects," "projects,"
"plans," "will," "may," "anticipates," believes," "should," "intends,"
"estimates," and other words of similar meaning. These statements are based on current plans, estimates and projections,
and, therefore, you should not place undue reliance on them. These statements are subject to risks and uncertainties that cannot
be predicted or quantified, and Mesa Energy's or Armada Oil's actual results may differ materially from those expressed
or implied by such forward-looking statements. These statements are subject to the risks and uncertainties, including: difficulties,
delays, unexpected costs or the inability to reach definitive documents with respect to, or consummate, the proposed business combination
and other transactions referred to in this press release and those described in the documents we file with the U. S. Securities
and Exchange Commission, and risks associated with the inherent uncertainty of Mesa Energy's and Armada Oil's future
financial results, Mesa Energy's or Armada Oil's ability to locate and acquire suitable interests in oil and gas properties
on terms acceptable to them and to integrate and successfully exploit any resulting acquisitions, the availability and pricing
of additional capital to finance their respective operations and leasehold acquisitions, their respective ability to build and
maintain successful operations infrastructures, the intensity of competition, changes and volatility in energy prices and general
economic conditions. All forward-looking statements included in this release are made as of the date of this press release, and
neither Mesa Energy nor Armada Oil assumes any obligation to update any such forward-looking statements.
Statement Regarding Additional Information
That May Become Available
If a transaction is to be proposed to the
stockholders of Mesa Energy, Mesa Energy and Armada Oil would file with the Securities and Exchange Commission and distribute a
Registration Statement on Form S-4 covering securities to be issued in the transaction. It is expected that Mesa Energy shareholders
would receive a prospectus and proxy statement or information statement, as applicable, in connection with such transaction. The
final terms of the prospective transaction remain subject to change and would only be reflected in a binding definitive agreement
that remains to be negotiated between the companies. A copy of the definitive merger agreement would be filed along with the prospectus
and proxy statement /information statement. Mesa Energy stockholders would be urged to read these and any other related documents
the corporation may issue. If and when these documents are filed, they will be available for free at the SEC's website, www.sec.gov.
Additional information on how to obtain these documents from Mesa Energy would be made available to stockholders if and when a
transaction is to occur. Such documents are not currently available.
3
No Offer or Solicitation to Sell
This communication shall not constitute
an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of securities in any jurisdiction in which
such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such
jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of
the Securities Act of 1933, as amended. Mesa Energy, its directors and executive officers, may be deemed to be participants in
the solicitation of proxies or consents from Mesa Energy's stockholders in connection with any transaction that might be
proposed to such stockholders. Information about the directors and executive officers of Mesa Energy and their ownership of Mesa
Energy and Armada Oil stock will be included in the prospectuses and proxy/consent solicitation statements if and when they become
available.
Item 9.01	Financial Statements and
Exhibits
(d) Exhibits
The following exhibit is being furnished
and shall not be deemed "filed" with the SEC for purposes of Section 18 of the Exchange Act, or otherwise subject to
the liability of that section, and shall not be deemed to be incorporated by reference into any filing under the Securities Act
or the Exchange Act, except to the extent that the Registrant specifically incorporates it by reference.
Exhibit Number
Description
99.1
Investor Presentation dated October 3, 2012
4
SIGNATURES
Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Mesa Energy Holdings, Inc.
Date: October 3, 2012
By:
/s/ Randy M. Griffin
Name:
Randy M. Griffin
Title:
Chief Executive Officer
5