Big Sky Petroleum Announces NI 51-101 Compliant Report on the Midland Basin Wolfcamp Prospect

Big Sky Petroleum Corp. (TSX VENTURE:BSP) is pleased to announce that Petrotech
Engineering Ltd. ("Petrotech"), a qualified reserves evaluator, has prepared a
National Instrument 51-101 compliant report titled "Evaluation of the Interest
of Big Sky Petroleum Corp. in the Oil & Gas Leases in Schleicher County, Texas"
dated effective February 28, 2013 (the "Report"). The Report can be found on
www.sedar.com and the Company's website http://bspcorp.com/.


At present, the Company has acquired a 90% working interest in 3,450 net acres
of oil and gas leases in Schleicher County, Texas, subject to mineral rights and
overriding royalty rate of 25%. The Company pays 100% of the drilling,
completion, facilities and operating costs for the first three wells until
payout of these costs, at which time a third party will back in for a 10%
working interest. In subsequent wells, such third party will have the option to
participate for a 10% working interest pursuant to the Joint Operating
Agreement.


In January 2013, the Schafer #1 Well was drilled to 7,370 feet (vertical well)
to test the Wolfcamp and Spraberry Formations in Section 2, Concho County School
Land Survey, Abstract 45 in Schleicher County. The well was completed with
multi-stage fracture treatments and is flowing back fracture fluids at this
time. No test data is currently available.


The evaluation uses the definition of resources and follows the guidelines from
the Canadian Oil and Gas Evaluation Handbook ("COGEH"). The net cash flow is
calculated at forecast prices and escalated costs on the prospective resources,
to all future time and after deduction of the capital and operating costs,
royalties, but before deduction of income tax. All cash flow data is in U.S.
dollars. A summary of the Company's gross and net share of the prospective
resources and net share of the future present worth net present values before
income tax, discounted at 0%, 5%, 10%, 15% and 20% is presented as follows:




Unrisked Prospective Resources (Prospects)

         Gas Resources       Oil Resources  Before Tax NPV @               
         100%  Gross  Net    Gross Net      0%     5%     10%   15%   20%  
Estimate MMcf  MMcf   MMcf   Mbbl  Mbbl     M$     M$     M$    M$    M$   
-------- ----- ------ ------ ---- --------- ------ ------ ----- ----- -----
Low      1,200 1,200  918    72    54       1,777  1,183  710   329   17   
Best     1,800 1,786  1,373  134   100      6,435  5,239  4,292 3,531 2,910
High     2,400 2,317  1,790  208   156      11,681 9,838  8,379 7,205 6,245



The forecast prices are based on the closing future prices of NYMEX Futures of
WTI oil and Henry Hub gas prices on February 28, 2013. The Report includes a
number of assumptions relating to factors such as initial production rates,
production decline rates, ultimate recovery of resources, timing and amount of
capital expenditures, marketability of production, future prices of crude oil
and natural gas, operating costs, well abandonment and salvage values, royalties
and other government levies that may be imposed over the producing life of the
resources. These assumptions were based on prices in use at the date the Report
was prepared, and many of these assumptions are subject to change and are beyond
the Company's control. The NPV's may not necessarily represent the fair market
value of the resource.


The Report is based on the author's review of technical data including geology,
petrophysics logs and reservoir parameters. The resources described in the
Report and in this release are "undiscovered resources" as defined in the COGEH.
Undiscovered resources are defined as those quantities of oil and gas estimates
on a given date to be contained in accumulations yet to be discovered. The
estimates of the potentially recoverable portions of undiscovered resources are
classified as prospective resources. Prospective resources are defined as those
quantities of oil and gas estimated on a given date to be potentially
recoverable from undiscovered accumulations technically viable and economic to
recover. Prospective resources have both an associated chance of discovery and a
chance of development. Not all exploration projects will result in discoveries.
In accordance with NI 51-101, the Company declares that there is no certainty
that any portion of the resources will be discovered and that the estimated
values herein do not represent fair market value. If discovered, there is no
certainty that it will be commercially viable to produce any portion of the
resources.


There are numerous uncertainties inherent in estimating resources, including
many factors beyond the Company's control, and no assurance can be given that
the indicated level of resources or recovery will be realized. In general,
estimates of recoverable resources are based upon a number of factors and
assumptions made as of the date on which the resource estimates were determined,
such as geological and engineering estimates which have inherent uncertainties
and the assumed effect of regulation by governmental agencies. All such
estimates are, to some degree, uncertain, and classifications of resources are
only attempts to define the degree of uncertainty involved.


About Big Sky

Big Sky Petroleum Corp. (TSX VENTURE:BSP) is a Canadian oil and gas exploration
and production company with U.S. operations in Texas and Montana. The Company is
currently focused on the development of unconventional tight oil reservoirs in
the Southern Midland Basin of West Texas, and the Southern Alberta Basin of
Montana. The Company uses the latest technology and streamlined operations for a
scalable and repeatable business model based on precise execution, while still
emphasizing growth.


Sam Nastat, President

Except for historical information contained herein, this news release contains
forward-looking statements that involve risks and uncertainties. Actual results
may differ materially. Except as required pursuant to applicable securities
laws, the Company will not update these forward-looking statements to reflect
events or circumstances after the date hereof. More detailed information about
potential factors that could affect financial results is included in the
documents filed from time to time with the Canadian securities regulatory
authorities by the Company. Readers are cautioned not to place undue reliance on
forward-looking statements.



FOR FURTHER INFORMATION PLEASE CONTACT: 
Big Sky Petroleum Corporation
Todd Hanas
1-866-869-8072
[e-mail]
www.bspcorp.com