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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED STATES</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WASHINGTON, D.C.&#160; 20549</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Pursuant to Section&nbsp;13 or 15(d)&nbsp;of the Securities Exchange Act of 1934</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of report (Date of earliest event reported):&#160; <b>October&nbsp;11, 2013</b></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">REEF OIL&nbsp;&amp; GAS DRILLING AND INCOME FUND, L.P.</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact Name of registrant as specified in its charter)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">333-172846</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">32-0388630</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other   jurisdiction of incorporation)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer   Identification No.)</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">1901 N. Central Expressway,   Suite&nbsp;300</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Richardson, Texas</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">75080</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registrant&#146;s telephone number, including area code:&#160; <b>(972) 437-6792</b></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Not Applicable</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Former name or former address, if changed since last report.)</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17 CFR 240.14d-2(b))</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17 CFR 240.13e-4(c))</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 8.01</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Other Events.</font></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On October&nbsp;11, 2013, Reef Oil&nbsp;&amp; Gas Drilling and Income Fund, L.P. (the &#147;Registrant&#148;), received an option (the &#147;Option&#148;) from an affiliate of the general partner of the Registrant (the &#147;Interest Owner&#148;) to purchase an interest (the &#147;Interest&#148;) in an oil and gas property (the &#147;Property&#148;) located in McKenzie County, North Dakota.&#160; The Property, which is identified in the map included as an exhibit to this Current Report on Form&nbsp;8-K, is part of a drilling unit (the &#147;Unit&#148;) containing 1,160 gross acres in the Bakken formation and 1,280 gross acres in the Three Forks formation.&#160; The Bakken-Three Forks is a highly-active area in North Dakota with more than 1,700 horizontal wells completed in 2012.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">ConocoPhillips,&nbsp;Inc. is the operator of the Unit.&#160; The Interest represented by the Option consists of a 45% interest in an oil and gas lease covering 28 net acres in the Unit (12.6 net acres to the Interest).&#160; The lease represents a 1.125% working interest in two Bakken wells and a 0.984375% working interest in four Three Forks wells.&#160; One of the Three Forks wells has been drilled in the Unit to total depth and is awaiting completion and one of the Bakken wells has commenced drilling.&#160; Three additional Three Forks wells and one additional Bakken well are planned to be drilled in the Unit by ConocoPhillips, which could yield a total of six new producing wells in the Unit.&#160; Based on ConocoPhillips&#146; recent drilling reports with respect to the drilled Three Forks well, the Interest Owner believes that the additional Three Forks wells will be spud in the near future, subject to to weather, drilling rig availability and other factors.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the Option, the Registrant is entitled to acquire the Interest by giving notice of exercise at any time prior to November&nbsp;15, 2013, which date may be extended at the sole discretion of the Interest Owner. If the Registrant exercises its Option to acquire the Interest prior to the expiration of the Option, the Registrant must pay approximately $27,000 to the Interest Owner to reimburse it for actual costs incurred to acquire the lease. In addition, the Registrant must pay its share of the total costs to acquire the lease and to drill and complete the six wells in the Unit, which is estimated to be approximately $675,000 in the aggregate, which amount is payable upon billing by ConocoPhillips in connection with the drilling and completion of the wells in 2013 and early 2014.</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><u><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></u></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirement 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>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dated:&#160; October&nbsp;11, 2013</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">REEF OIL&nbsp;&amp; GAS DRILLING   AND INCOME FUND, L.P.,</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">a Texas limited partnership</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant)</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Reef Oil&nbsp;&amp; Gas Partners, L.P.,</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">its managing general partner</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Reef Oil&nbsp;&amp; Gas Partners, GP, LLC,</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">its general partner</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="46%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:46.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Michael J. Mauceli</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="46%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:46.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Michael J. Mauceli</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Manager</font></i></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3<a name="PB_3_222110_7748"></a></font></p>
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{"company-data": {"conformed-name": "Reef Oil & Gas Drilling & Income Fund, L.P.", "cik": "0001514993", "assigned-sic": "1381", "irs-number": "000000000", "state-of-incorporation": "TX", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-172846", "film-number": "131147672"}, "business-address": {"street1": "1901 N. CENTRAL EXPRESSWAY", "street2": "SUITE 300", "city": "RICHARDSON", "state": "TX", "zip": "75080", "phone": "972-437-6792"}, "mail-address": {"street1": "1901 N. CENTRAL EXPRESSWAY", "street2": "SUITE 300", "city": "RICHARDSON", "state": "TX", "zip": "75080"}, "former-company": [{"former-conformed-name": "Reef 2012 - 2013 Drilling Fund, L.P.", "date-changed": "20121004"}, {"former-conformed-name": "Reef 2012 - 2013 Drilling Fund, LLC", "date-changed": "20120928"}, {"former-conformed-name": "Reef 2011 - 2012 Drilling Program", "date-changed": "20110310"}]}
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 11, 2013
REEF OIL & GAS DRILLING AND INCOME FUND, L.P.
(Exact Name of registrant as specified in its charter)
Texas
333-172846
32-0388630
(State or other   jurisdiction of incorporation)
(Commission File Number)
(IRS Employer   Identification No.)
1901 N. Central Expressway,   Suite 300
Richardson, Texas
75080
(Address   of principal executive offices)
(Zip Code)
Registrant's telephone number, including area code:
(972) 437-6792
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:
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 8.01
Other Events.
On October 11, 2013, Reef Oil & Gas Drilling and Income Fund, L.P. (the "Registrant"), received an option (the "Option") from an affiliate of the general partner of the Registrant (the "Interest Owner") to purchase an interest (the "Interest") in an oil and gas property (the "Property") located in McKenzie County, North Dakota.  The Property, which is identified in the map included as an exhibit to this Current Report on Form 8-K, is part of a drilling unit (the "Unit") containing 1,160 gross acres in the Bakken formation and 1,280 gross acres in the Three Forks formation.  The Bakken-Three Forks is a highly-active area in North Dakota with more than 1,700 horizontal wells completed in 2012.
ConocoPhillips, Inc. is the operator of the Unit.  The Interest represented by the Option consists of a 45% interest in an oil and gas lease covering 28 net acres in the Unit (12.6 net acres to the Interest).  The lease represents a 1.125% working interest in two Bakken wells and a 0.984375% working interest in four Three Forks wells.  One of the Three Forks wells has been drilled in the Unit to total depth and is awaiting completion and one of the Bakken wells has commenced drilling.  Three additional Three Forks wells and one additional Bakken well are planned to be drilled in the Unit by ConocoPhillips, which could yield a total of six new producing wells in the Unit.  Based on ConocoPhillips' recent drilling reports with respect to the drilled Three Forks well, the Interest Owner believes that the additional Three Forks wells will be spud in the near future, subject to to weather, drilling rig availability and other factors.
Pursuant to the Option, the Registrant is entitled to acquire the Interest by giving notice of exercise at any time prior to November 15, 2013, which date may be extended at the sole discretion of the Interest Owner. If the Registrant exercises its Option to acquire the Interest prior to the expiration of the Option, the Registrant must pay approximately $27,000 to the Interest Owner to reimburse it for actual costs incurred to acquire the lease. In addition, the Registrant must pay its share of the total costs to acquire the lease and to drill and complete the six wells in the Unit, which is estimated to be approximately $675,000 in the aggregate, which amount is payable upon billing by ConocoPhillips in connection with the drilling and completion of the wells in 2013 and early 2014.
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SIGNATURES
Pursuant to the requirement 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.
Dated:  October 11, 2013
REEF OIL & GAS DRILLING   AND INCOME FUND, L.P.,
a Texas limited partnership
(Registrant)
By:
Reef Oil & Gas Partners, L.P.,
its managing general partner
By:
Reef Oil & Gas Partners, GP, LLC,
its general partner
By:
/s/ Michael J. Mauceli
Michael J. Mauceli
Manager
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