<SUBMISSION>
<ACCESSION-NUMBER>0000893538-07-000126
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20070914
<ITEMS>7.01
<ITEMS>8.01
<ITEMS>9.01
<FILING-DATE>20070914
<DATE-OF-FILING-DATE-CHANGE>20070914
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>ST MARY LAND & EXPLORATION CO
<CIK>0000893538
<ASSIGNED-SIC>1311
<IRS-NUMBER>410518430
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-31539
<FILM-NUMBER>071117207
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>1776 LINCOLN ST STE 700
<CITY>DENVER
<STATE>CO
<ZIP>80203
<PHONE>303-861-8140
</BUSINESS-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>asci091407_8k.htm
<DESCRIPTION>DIVESTITURE AND STOCK REPURCHASE ANNOUNCEMENT
<TEXT>
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font SIZE=2>UNITED STATES</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font SIZE=2>SECURITIES AND EXCHANGE COMMISSION</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>Washington, D.C. 20549</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font SIZE=2>FORM 8-K</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font SIZE=2>CURRENT REPORT</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font size=2>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>Date of Report (Date of earliest event reported)</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>September 14, 2007 (September 13, 2007)</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font size=2>St. Mary Land &amp; Exploration Company</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>(Exact name of registrant as specified in its charter)</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font></p>


<table border="0" cellspacing=0 cellpadding=0 width="100%" style='border-collapse:collapse'>
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        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>Delaware</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>001-31539</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>41-0518430</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>(State or other jurisdiction</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>(Commission</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>(I.R.S. Employer</font></p> </td> </tr>
    <tr >
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>of incorporation)</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>File Number)</font></p> </td>
        <td width="213" valign=top style='padding:0in 5.4pt 0in 5.4pt'>
            <p style='margin-left:0pt;text-indent:0pt;text-align:center;margin-top:0pt;margin-bottom:0pt'><font size=2>Identification No.)</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>1776 Lincoln Street, Suite 700, Denver, Colorado 80203</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>(Address of principal executive offices)</font><font size=1>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font size=2>(Zip Code)</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>Registrant&#146;s telephone number, including area code: (303) 861-8140</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>Not applicable</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>(Former name or former address, if changed since last report.)</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>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.):</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>[_] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>[_] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>[_] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>[_] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'>
</p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

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<pAGE>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 7.01  </font></b></p> </td>
        <td width="199" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Regulation FD Disclosure.</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>On September 13, 2007, St. Mary Land &amp; Exploration Company (the &#147;Company&#148;) issued a press release entitled &#147;St. Mary Announces Plan to Divest </font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>Non-Strategic&nbsp;Oil and Gas Properties and Recent Stock Repurchase Activity.&#148;  The press released announced that the Company has engaged Albrecht &amp; Associates, Inc. to market for sale a package of non-strategic oil and gas properties.  Additionally, the Company announced that in August it repurchased a total of approximately 791,000 shares of outstanding common stock at a weighted average cost of $32.82 per share.  A copy of the press release is furnished as Exhibit 99.1 to this report. </font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>In accordance with General Instruction B.2. of Form 8-K, the preceding information, including Exhibit 99.1, shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall such information and Exhibit be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such a filing.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 8.01</font></b></p> </td>
        <td width="115" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Other Events.</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.54in;text-align:left;'><font size=2>On September 13, 2007, the Company announced that it has engaged Albrecht &amp; Associates, Inc. to handle a planned property divestiture of certain non-core oil and gas properties.&nbsp; The package represents non-strategic properties located primarily in the Rockies and Mid-Continent regions.&nbsp; Based on a preliminary reserve estimate prepared by Albrecht &amp; Associates, these properties represent approximately 74 BCFE of proved oil and gas reserves.  The sales price for these properties will be determined by a competitive bidding process.  Provided the Company believes it receives an offer that it believes represents appropriate value and is accretive to net asset value per share, the divestiture is currently expected to be completed in late December 2007.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>The Company also announced that throughout the month of August 2007, the Company repurchased a total of 790,816 shares of outstanding common stock at an average weighted cost of $32.82 per share in the open market.  The shares were repurchased under the Company&#146;s existing Board-authorized stock repurchase program.  The Company is authorized to repurchase 5,209,184 additional shares of common stock under its current authorization.  The stock repurchases were funded with cash on hand and borrowings under the Company&#146;s existing credit facility.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>This report contains forward-looking statements within the meaning of securities laws.  The words &#147;will,&#148; &#147;plans,&#148; and &#147;expect&#148; and similar expressions are intended to identify forward-looking statements.  These statements involve known and unknown risks, which may cause the Company&#146;s actual results to differ materially from results expressed or implied by the forward-looking statements.  These risks include such factors as the pending nature of the announced divestiture as well as the ability to complete this transaction, the uncertain nature of the expected benefits from the divestiture of oil and gas properties, uncertainties related to the </font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>2</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>&nbsp;</font></p>

<p style='page-break-before:always'></p>
<pAGE>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>amount of expected proceeds to be received from the divestiture, the volatility and level of oil and natural gas prices, the imprecise nature of oil and natural gas reserve estimates, and other matters discussed in the &#147;Risk Factors&#148; section of the Company&#146;s 2006 Annual Report on Form 10-K/A and subsequent Quarterly Reports on Form 10-Q filed with the Securities and Exchange Commission.  Although the Company may from time to time voluntarily update its prior forward looking statements, it disclaims any commitment to do so except as required by securities laws.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Item 9.01  </font></b></p> </td>
        <td width="259" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><b><font size=2>Financial Statements and Exhibits.</font></b></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:justify;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>(d)</font></p> </td>
        <td width="440" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Exhibits.  The following exhibit is furnished as part of this report:</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; margin-left:2.25in; text-indent:-1.25in;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Exhibit 99.1</font></p> </td>
        <td  valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Press release of St. Mary Land &amp; Exploration Company dated September 13, 2007.</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'>
</p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>3</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>&nbsp;</font></p>

<p style='page-break-before:always'></p>
<pAGE>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font SIZE=2>SIGNATURES</font></b></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt; text-indent:0.5in;text-align:left;'><font size=2>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.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>ST. MARY LAND &amp; EXPLORATION COMPANY</font></p> </td> </tr></table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Date:  September 14, 2007</font></p> </td>
        <td  colspan="4" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>By: </font><u><font size=2>/s/ MARK T. SOLOMON</font></u></p> </td> </tr>
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        <td   colspan="2">
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></td>
        <td  colspan="2" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Mark T. Solomon</font></p> </td>
        <td  width="51">
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></td> </tr>
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        <td   colspan="2">
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></td>
        <td width="85" valign=top >
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Controller</font></p> </td>
        <td   colspan="2">
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></td> </tr>
    <tr>
        <td width="228" ></td>

        <td width="30" ></td>

        <td width="85" ></td>

        <td width="48" ></td>

        <td width="51" ></td> </tr> </table>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>4</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=1>&nbsp;</font></p>


<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>



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<FILENAME>exhibit991.htm
<DESCRIPTION>PRESS RELEASE 091307
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font color="#FF0000"><font size=2>&nbsp;</font></font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:right;'><u><b><font SIZE=2>EXHIBIT 99.1</font></b></u></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>


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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><u><b><font size=2>For Information</font></b></u></p> </td> </tr>
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            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=2>Brent A. Collins</font></p> </td>
        <td  width="9">
            <p style='margin-left:0pt;text-indent:0pt;text-align:left;margin-top:0pt;margin-bottom:0pt'><font size=1>&nbsp;</font></td> </tr>
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2><font face="Arial">&nbsp;</font></font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font face="Arial"><b><font SIZE=2>FOR IMMEDIATE RELEASE</font></b></font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><b><font SIZE=2>ST. MARY ANNOUNCES PLAN TO DIVEST NON-STRATEGIC OIL AND GAS PROPERTIES AND RECENT STOCK REPURCHASE ACTIVITY</font></b></p>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><b><font size=2>DENVER, September 13, 2007</font></b><font size=2>&#150; St. Mary Land &amp; Exploration Company (NYSE: SM) today announces that it has engaged Albrecht &amp; Associates, Inc. to market for sale a package of non-strategic oil and gas properties.  Additionally, the Company announces that in August it repurchased a total of approximately 791,000 shares of outstanding common stock at a weighted average cost of $32.82 per share.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>Tony Best, President and CEO, commented, &#147;We have recently completed a review of our asset base and determined that now is the appropriate time to pursue the  divestiture of selected non-core oil and gas properties.  The valuation metrics of selected sales packages are attractive in the current market environment.  In addition, our employees will be better able to concentrate their efforts on the larger scale development programs that make up the majority of our drilling inventory and that provide the highest growth opportunities for St. Mary. </font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&#147;With respect to the stock repurchases, we routinely assess our net asset value per share against the value reflected in the market price for our shares.  When we see the market value fall below our internal assessment of net asset value per share, we will often move to buy back our shares at that accretive price.  By hedging a proportionally commensurate amount of production related to the reserves associated with the repurchased shares in a manner consistent with our approach to acquisitions, we have locked in the value being offered by the market.&#148;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font face="Arial"><b><font SIZE=2>DIVESTITURE PACKAGE</font></b></font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>St. Mary has engaged Albrecht &amp; Associates, Inc. to handle a planned property divestiture of certain non-core oil and gas properties.</font><font size=2>&nbsp;</font><font size=2> The package represents non-strategic properties located primarily in the Rockies and Mid-Continent regions.&nbsp; Based on a preliminary reserve estimate prepared by Albrecht and Associates, these properties represent approximately 74 BCFE of proved oil and gas reserves.  The sales price for these properties will be determined by a competitive bidding process.  Provided the Company believes it receives an offer that it believes represents appropriate value and is accretive to net asset value per share, the divestiture is currently expected to be </font></p>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>completed in late December 2007.  Accordingly, there is no anticipated impact to the Company&#146;s previously announced 2007 production guidance.  Inquiries related to the sale should be directed to Albrecht &amp; Associates, Inc. at (713) 951-9586.</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2><font face="Arial">&nbsp;</font></font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font face="Arial"><b><font SIZE=2>STOCK REPURCHASES</font></b></font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>Throughout the month of August, St. Mary repurchased a total of 790,816 shares of outstanding common stock at an average weighted cost of $32.82 per share in the open market.  The shares were repurchased under the Company&#146;s existing Board-authorized stock repurchase program.  The Company is authorized to repurchase 5,209,184 additional shares of common stock under its current authorization.  The stock repurchases were funded with cash on hand and borrowings under the Company&#146;s existing credit facility.</font></p>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font face="Arial"><b><font SIZE=2>INFORMATION ABOUT FORWARD-LOOKING STATEMENTS</font></b></font></p>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

<p style=' margin-bottom:12pt; margin-top:0pt;text-align:left;'><font size=2>This release contains forward-looking statements within the meaning of securities laws.  The words &#147;will,&#148; &#147;anticipate,&#148; &#147;plans,&#148; and &#147;expect&#148; and similar expressions are intended to identify forward-looking statements.  These statements involve known and unknown risks, which may cause St. Mary&#146;s actual results to differ materially from results expressed or implied by the forward-looking statements.  These risks include such factors as the pending nature of the announced divestiture as well as the ability to complete this transaction, the uncertain nature of the expected benefits from the divestiture of oil and gas properties, uncertainties related to the amount of expected proceeds to be received from the divestiture, the volatility and level of oil and natural gas prices, the imprecise nature of oil and natural gas reserve estimates, and other matters discussed
in the &#147;Risk Factors&#148; section of St.&nbsp;Mary&#146;s 2006 Annual Report on Form 10-K/A and subsequent Quarterly Reports on Form 10-Q filed with the SEC.  Although St. Mary may from time to time voluntarily update its prior forward looking statements, it disclaims any commitment to do so except as required by securities laws.</font></p>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font SIZE=2>PR-07-17</font></p>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>2</font></p>

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