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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. 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):&nbsp;<b>June&nbsp;25, 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;">PROSPECT GLOBAL RESOURCES INC.</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;">(</font></b><font size="2" 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;">Nevada</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;">001-35590</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;">26-3024783</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</font><font size="2" style="font-size:10.0pt;"><br> 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</font><font size="2" style="font-size:10.0pt;"><br> Identification Number)</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;">1401 17</font></b><b><font size="1" style="font-size:6.5pt;font-weight:bold;position:relative;top:-3.0pt;">th</font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">&nbsp;Street</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;">Suite&nbsp;1550</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;">Denver, CO</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;">80202</font></b></p>    </td>   </tr>
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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;">(303) 990-8444</font></b></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 (<u>see</u> General Instruction A.2. below):</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Written   communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR   230.425)</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;">Soliciting   material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR   240.14a-12)</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;">Pre-commencement   communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17   CFR 240.14d-2(b))</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;">Pre-commencement   communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17   CFR 240.13e-4(c))</font></p>    </td>   </tr>  </table>
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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 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On June&nbsp;26, 2013, we entered into a Second Extension Agreement (the &#147;Extension Agreement&#148;) with The Karlsson Group,&nbsp;Inc. (&#147;Karlsson&#148;) which amended the senior first priority secured promissory note (the &#147;Karlsson Note&#148;) that we issued to Karlsson on August&nbsp;1, 2012 and amended on April&nbsp;15, 2013 in connection with our purchase of Karlsson&#146;s 50% interest in our subsidiary American West Potash LLC. The outstanding principal balance of the Karlsson Note is approximately $115.3 million. In addition, we are currently liable to Karlsson for accrued and unpaid interest and accrued tax gross-ups totaling approximately $17.1 million which will be due on the maturity date of the Karlsson Note. In connection with the Extension Agreement, we amended, among other documents, the Karlsson Note (the &#147;Karlsson Note Amendment&#148;)</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Under the Karlsson Note Amendment, interim principal payment of $30 million that was due on the earlier of (i)&nbsp;six months following completion of a definitive feasibility study and (ii)&nbsp;January&nbsp;2, 2015 has been eliminated. The Karlsson Note Amendment requires us to place 50% of the net proceeds of the next $24 million of capital we raise (for a total of $12 million) into escrow, which funds may be released solely to fund specified development expenses for our potash project in the Holbrook Basin escrow. $2 million of the proceeds we received from our recent $5 million equity offering were placed into this escrow, reducing our remaining escrow obligation to $10 million.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Under the Karlsson Note Amendment, we are required to meet the following development milestones: (i)&nbsp;complete total depth on at least eight wells on or before November&nbsp;1, 2013, (ii)&nbsp;deliver a completed and&#160; updated final NI 43-101&#160; resource report on or before February&nbsp;1, 2014, (iii)&nbsp;deliver completed metallurgical and rock mechanic test work results that will be used to complete the mine and processing plant designs for the definitive feasibility study on or before June&nbsp;1, 2014 and, (iv)&nbsp;deliver a completed and published definitive feasibility study on or before December&nbsp;31, 2014.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Under the Karlsson Note Amendment, Karlsson may assign the Karlsson Note at any time to any person; previously it was assignable following the earlier of (i)&nbsp;September&nbsp;10, 2013, (ii)&nbsp;an event of default under the Karlsson Note, and (iii)&nbsp;once we have raised at least $30.0 million of capital and there were restrictions on assignees. We also extended the term of Karlsson&#146;s right to receive 15% of the net proceeds from the sale of the Company by six months to February 1, 2018.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Extension Agreement contains customary lender releases and indemnification language.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">In connection with the amendments to the Karlsson Group debt, we issued Karlsson a five year warrant to purchase 3,000,000 million of our common shares at $0.12 per share and amended our registration rights agreement with Karlsson to include the shares issuable upon exercise of the new warrant.&#160; The warrant may be exercised on a cashless basis. We also reimbursed Karlsson $125,000 for its legal fees and expenses.</font></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;">2<a name="PB_2_080801_5335"></a></font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On June&nbsp;26, 2013 we announced that we had amended our senior debt with Karlsson. The press release is attached as Exhibit&nbsp;99.1.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:3.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.01 Financial Statements and Exhibits.</font></b></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)&nbsp;Exhibits.</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Identification&nbsp;of&nbsp;Exhibits</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;">&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;">&nbsp;</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;">99.1</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;">Press   Release</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<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_080837_5796"></a></font></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;">&nbsp;</font></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;">SIGNATURE</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;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">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 align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
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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;">PROSPECT GLOBAL RESOURCES INC.</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;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.44%;">
<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:10.0pt;">&nbsp;</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>
<td width="45%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:45.56%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/&nbsp;Gregory   M. Dangler</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;">Date:&nbsp;&nbsp;June&nbsp;26,   2013</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;">Interim   Chief Financial Officer</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: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:10.0pt;">&nbsp;</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4<a name="PB_4_080917_2897"></a></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">Exhibit&nbsp;Index</font></u></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit&nbsp;No.</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Identification&nbsp;of&nbsp;Exhibits</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;">&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;">&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;">&nbsp;</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;">99.1</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;">Press   Release</font></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;">5<a name="PB_5_080956_3020"></a></font></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;">&nbsp;</font></p>
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{"company-data": {"conformed-name": "PROSPECT GLOBAL RESOURCES INC.", "cik": "0001477032", "assigned-sic": "1520", "irs-number": "263024783", "state-of-incorporation": "NV", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-35590", "film-number": "13933279"}, "business-address": {"street1": "1401 17TH STREET", "street2": "SUITE 1550", "city": "DENVER", "state": "CO", "zip": "80202", "phone": "303-990-8444"}, "mail-address": {"street1": "1401 17TH STREET", "street2": "SUITE 1550", "city": "DENVER", "state": "CO", "zip": "80202"}, "former-company": {"former-conformed-name": "Triangle Castings, Inc.", "date-changed": "20091118"}}
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):
June 25, 2013
PROSPECT GLOBAL RESOURCES INC.
(
Exact name of registrant as specified in its charter)
Nevada
001-35590
26-3024783
(State or other jurisdiction
of incorporation)
(Commission File Number)
(IRS Employer
Identification Number)
1401 17
th
Street
Suite 1550
Denver, CO
80202
(Address of Principal Executive Offices)
(Zip Code)
(303) 990-8444
(Registrant's telephone number, including area code)
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 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.
On June 26, 2013, we entered into a Second Extension Agreement (the "Extension Agreement") with The Karlsson Group, Inc. ("Karlsson") which amended the senior first priority secured promissory note (the "Karlsson Note") that we issued to Karlsson on August 1, 2012 and amended on April 15, 2013 in connection with our purchase of Karlsson's 50% interest in our subsidiary American West Potash LLC. The outstanding principal balance of the Karlsson Note is approximately $115.3 million. In addition, we are currently liable to Karlsson for accrued and unpaid interest and accrued tax gross-ups totaling approximately $17.1 million which will be due on the maturity date of the Karlsson Note. In connection with the Extension Agreement, we amended, among other documents, the Karlsson Note (the "Karlsson Note Amendment")
Under the Karlsson Note Amendment, interim principal payment of $30 million that was due on the earlier of (i) six months following completion of a definitive feasibility study and (ii) January 2, 2015 has been eliminated. The Karlsson Note Amendment requires us to place 50% of the net proceeds of the next $24 million of capital we raise (for a total of $12 million) into escrow, which funds may be released solely to fund specified development expenses for our potash project in the Holbrook Basin escrow. $2 million of the proceeds we received from our recent $5 million equity offering were placed into this escrow, reducing our remaining escrow obligation to $10 million.
Under the Karlsson Note Amendment, we are required to meet the following development milestones: (i) complete total depth on at least eight wells on or before November 1, 2013, (ii) deliver a completed and  updated final NI 43-101  resource report on or before February 1, 2014, (iii) deliver completed metallurgical and rock mechanic test work results that will be used to complete the mine and processing plant designs for the definitive feasibility study on or before June 1, 2014 and, (iv) deliver a completed and published definitive feasibility study on or before December 31, 2014.
Under the Karlsson Note Amendment, Karlsson may assign the Karlsson Note at any time to any person; previously it was assignable following the earlier of (i) September 10, 2013, (ii) an event of default under the Karlsson Note, and (iii) once we have raised at least $30.0 million of capital and there were restrictions on assignees. We also extended the term of Karlsson's right to receive 15% of the net proceeds from the sale of the Company by six months to February 1, 2018.
The Extension Agreement contains customary lender releases and indemnification language.
In connection with the amendments to the Karlsson Group debt, we issued Karlsson a five year warrant to purchase 3,000,000 million of our common shares at $0.12 per share and amended our registration rights agreement with Karlsson to include the shares issuable upon exercise of the new warrant.  The warrant may be exercised on a cashless basis. We also reimbursed Karlsson $125,000 for its legal fees and expenses.
2
On June 26, 2013 we announced that we had amended our senior debt with Karlsson. The press release is attached as Exhibit 99.1.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
Exhibit No.
Identification of Exhibits
99.1
Press   Release
3
SIGNATURE
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.
PROSPECT GLOBAL RESOURCES INC.
By:
/s/ Gregory   M. Dangler
Date:  June 26,   2013
Interim   Chief Financial Officer
4
Exhibit Index
Exhibit No.
Identification of Exhibits
99.1
Press   Release
5