Prospect Global Resources Announces Extension of Rights Offering

  Prospect Global Resources Announces Extension of Rights Offering

       Prospect Global extends rights offering to Monday, June 17, 2013

Business Wire

DENVER -- June 13, 2013

Prospect Global Resources Inc. (NASDAQ: PGRX) announced today its decision to
extend its previously announced rights offering to 5:00 p.m., New York City
time, on Monday, June 17, 2013. Stockholders who have not exercised their
rights may still do so within the extension period. Those stockholders whose
shares are held through a brokerage account, bank or other nominee, will need
to provide investment instructions to the nominees not later than 5:00 p.m.,
New York City time, on Monday, June 17, 2013. The rights offering was
originally scheduled to expire on June 6, 2013, and was subsequently extended
first to June 10, 2013 and then to June 12, 2013.

The rights offering is conducted via an existing effective shelf registration
statement. The prospectus supplement relating to the offering was filed with
the SEC on May 22, 2013. Copies of the prospectus supplement and the
accompanying prospectus may be obtained for free by searching the SEC online
database (EDGAR) on the SEC website at www.sec.gov or from the Company at 1401
17th Street, Suite 1550, Denver, CO 80202, Attention: Gregory M. Dangler.

This press release shall not constitute an offer to sell, or the solicitation
of an offer to buy, any securities, nor shall there be any sale of securities
mentioned in this press release in any state in which such offer, solicitation
or sale would be unlawful prior to registration or qualification under the
securities laws of any such state.

Regarding Forward-Looking Statements

With the exception of historical matters, the matters discussed in this press
release include forward-looking statements that involve risks and
uncertainties that could cause actual results to differ materially from
projections or estimates contained herein. Such forward-looking statements
include statements regarding current and future classification of Prospect
Global’s potash resources and development of its potash resources and potash
mining facility. Factors that could cause actual results to differ materially
from projections or estimates include, among others, potash prices, economic
and market conditions, and the additional risks described in Prospect Global's
filings with the SEC, including Prospect Global's Annual Report on Form 10-K
for the year ended March 31, 2012. Most of these factors are beyond Prospect
Global's ability to predict or control. The forward-looking statements are
made as of the date hereof and, except as required under applicable securities
legislation, Prospect Global does not assume any obligation to update any
forward-looking statements. Readers are cautioned not to put undue reliance on
forward-looking statements.

About Prospect Global Resources Inc.

Prospect Global Resources Inc. is a Denver-based company engaged in the
exploration and development of a potash mine located in the Holbrook Basin of
eastern Arizona. Prospect Global’s stock is traded on the NASDAQ Capital
Market under the ticker symbol PGRX.

Additional details about Prospect Global Resources Inc. can be viewed at the
Company’s website, www.prospectgri.com.

Contact:

Prospect Global Resources Inc.
Gregory M. Dangler, Interim CFO
+1 (303) 990-8444