Madalena - Cases CAS X-5 for the Vaca Muerta Shale, Continues with Steady Horizontal Development, Provides Team Update and

  Madalena - Cases CAS X-5 for the Vaca Muerta Shale, Continues with Steady
 Horizontal Development, Provides Team Update and Layers in Production Hedges

  PR Newswire

  CALGARY, February 4, 2013

CALGARY, February 4, 2013 /PRNewswire/ --

TSXV Trading Symbol: MVN

Madalena Ventures Inc. (the "Company" or "Madalena" (TSX VENTURE: MVN) is
pleased to provide the following updates:

International Operations Update - Neuquen Basin

In Argentina, exploration and delineation activity continues on the Company's
large petroleum in-place unconventional shales and conventional tight sand
plays. In the southern portion of the Coiron Amargo block (Madalena 35%
W.I.), Madalena continues to define and quantify the Vaca Muerta shale
potential on the block with the recent drilling of the CAS X-5 exploration
well. The CAS X-5 location was drilled to a total depth of 3,400 meters (or
11,155 feet) and encountered hydrocarbon in the Vaca Muerta as expected. CAS
X-5 has now been cased with approximately 100 meters of Vaca Muerta shale on
logs and an average total organic content ("TOC") over the 100 meter section
of over 4%, confirming the high quality of the Vaca Muerta on the block.
Based on technical information gathered to date, Coiron Amargo has some of the
highest TOC content within the Neuquen basin, and based on core data on the
block, the lower Vaca Muerta at CAS X-5 is expected to have approximately 7%
porosity.

With recent Joint Venture partnerships being announced near the Coiron Amargo
block by both Chevron and Bridas (on YPF held acreage) for an estimated U.S.
$1.0 - $1.5 billion to earn various working interests in the Vaca Muerta
shale, Madalena is focused on continuing to delineate and prove-up this
significant resource at Coiron Amargo. Madalena is also actively working to
move forward on its other two blocks within the Neuquen basin at Cortadera
(40% W.I.) and Curamhuele (90% W.I.).

Western Canada Operations Update - Greater Paddle River Core Area

With the focus on production growth from its three key resource plays in the
Greater Paddle River Area, Madalena continues to move forward on its plan to
drill, multi-stage frac and tie-in four to five net horizontal wells prior to
spring break-up.

At Paddle River, the Company is currently drilling the 100% W.I. 8-5 Ostracod
oil horizontal well. Once drilling is completed at this location and a
production liner is run, the drilling rig will move to a follow-up Ostracod
oil horizontal location (Madalena 100% W.I.) to continue to exploit its 54 net
sections on this resource play.

In the Wildwood area, Madalena is preparing to complete its recently drilled
100% W.I. 15-12 Nordegg liquids-rich horizontal well (estimated at over 100
bbls/mmcf). It is anticipated that a multi-stage frac program will be
undertaken on the well within the next two weeks and subsequently tested and
tied-in to Madalena's local infrastructure. The Company plans, weather
permitting, to drill an additional 100% W.I. Nordegg liquids-rich horizontal
well prior to spring break-up. Madalena has 144 net sections on the Nordegg
oil & liquids-rich resource play .

At Niton, the Company is also currently constructing wellsite facilities to
enable its recently drilled 100% W.I. 6-27 Notikewin horizontal well to be
placed on production by mid-February. The well was completed with a
multi-stage frac and was flow tested as disclosed in a January 17, 2013 press
release.

Corporate Update

Mr. Anthony Potter has resigned from his positions of Vice-President, Chief
Financial Officer effective February 28, 2013 and as Director of Madalena and
its subsidiaries effective immediately. The Board of Directors and Management
of Madalena wish to thank Mr. Potter for his tenure.

Mr. Thomas Love, C.A. , the former CFO and Director of Online Energy Inc.
("Online") has been providing consulting services since the acquisition of
Online, and go-forward, will continue to be available to assist the Company
during and after the transition period. Mr. Love has over 35 years of
experience in the oil and gas industry, including both Western Canadian and
International experience. Prior to his role at Online, he was the CFO of
Trimox Energy Inc. and Moxie Exploration Ltd., and President and Chief
Executive Officer of Moxie Petroleum Ltd. Earlier in Mr. Love's career, he
was involved in running the Canadian operations of a U.K. based International
E&P and articled at Ernst & Young LLP.

Layering in Gas Hedges on Base Production

As at February 4th, 2013, Madalena has the following natural gas commodity
fixed price risk management contracts in place for 2013.

      Product               Term               Volume  Average Price
    Natural Gas Apr. 1, 2013 to Oct. 31, 2013 300 GJ/d  $3.00 CDN/GJ
    Natural Gas Apr. 1, 2013 to Oct. 31, 2013 300 GJ/d  $4.47 CDN/GJ

The natural gas fixed price swap of 300 GJ/d at a price of CDN$4.47/GJ was
enhanced and received a premium price in 2013 by placing a call on 50 bbl/d at
US$100 for the calendar year 2014.

As at February 4th, 2013, the details of the above commodity price risk
management arrangements are as follows:

                                                      Price     Price
             Type              Period       Volume    Floor    Ceiling   Index
                             April 1, 2013
                               to Oct. 31,
    Natural gas fixed                 2013 300 GJ/d $3.00 CDN  $3.00 CDN  AECO
                             April 1, 2013
                               to Oct. 31,
    Natural gas fixed                 2013 300 GJ/d $4.47 CDN  $4.47 CDN  AECO
                           Jan. 1, 2014 to
    Crude oil call options   Dec. 31, 2014 50 bbl/d         - $100.00 US   WTI

About Madalena - Domestic and International Assets

Madalena is an independent, Canadian-based, domestic and international
upstream oil and gas company whose main business activities include
exploration, development and production of crude oil, natural gas liquids and
natural gas.

Domestically, Madalena holds a significant acreage position in Western Canada,
with a core area of operations located in the Greater Paddle River area, where
the company holds 197 gross (153 net) sections of land (78% average W.I.)
across multiple light oil and liquids-rich gas resource plays. Madalena's
focus domestically is to exploit its large inventory of horizontal development
locations in its Ostracod oil, Notikewin/Wilrich liquids-rich gas, and Nordegg
oil & liquids-rich resource plays. Madalena also holds ~103 net sections
(100% W.I.) which are prospective for the Duvernay shale.

Internationally, Madalena holds three large blocks within the prolific Neuquén
basin in Argentina and is focused on the delineation and prove-up of its large
petroleum in-place shale & unconventional resources in the Vaca Muerta and
Agrio shales, alongside high impact plays in the Quintuco and Mulichinco
formations. Madalena holds 135,000 net acres across the Coiron Amargo (35,027
net acres), Curamhuele (50,400 net acres) and Cortadera (49,600 net acres)
blocks.

Madalena trades on the TSX Venture Exchange under the symbol MVN. Basic
corporate information, recent news releases and regularly updated corporate
presentations are available on the Company's website at
http://www.madalena-ventures.com .

Reader Advisories

The information in this news release contains certain forward-looking
statements. These statements relate to future events or our future
performance. All statements other than statements of historical fact may be
forward-looking statements. Forward-looking statements are often, but not
always, identified by the use of words such as "seek", "anticipate", "plan",
"continue", "estimate", "approximate", "expect", "may", "will", "project",
"predict", "potential", "targeting", "intend", "could", "might", "should",
"believe", "would" and similar expressions. In particular, this news release
contains forward-looking statements pertaining to operational activities to be
conducted by the Company. These statements involve substantial known and
unknown risks and uncertainties, certain of which are beyond the Company's
control, including: the impact of general economic conditions; industry
conditions; changes in laws and regulations including the adoption of new
environmental laws and regulations and changes in how they are interpreted and
enforced; fluctuations in commodity prices and foreign exchange and interest
rates; stock market volatility and market valuations; volatility in market
prices for oil and natural gas; liabilities inherent in oil and natural gas
operations; uncertainties associated with estimating oil and natural gas
reserves; competition for, among other things, capital, acquisitions, of
reserves, undeveloped lands and skilled personnel; incorrect assessments of
the value of acquisitions; changes in income tax laws or changes in tax laws
and incentive programs relating to the oil and gas industry; geological,
technical, drilling and processing problems and other difficulties in
producing petroleum reserves; and obtaining required approvals of regulatory
authorities. The Company's actual results, performance or achievement could
differ materially from those expressed in, or implied by, such forward-looking
statements and, accordingly, no assurances can be given that any of the events
anticipated by the forward-looking statements will transpire or occur or, if
any of them do, what benefits the Company will derive from them. These
statements are subject to certain risks and uncertainties and may be based on
assumptions that could cause actual results to differ materially from those
anticipated or implied in the forward-looking statements. The forward-looking
statements in this news release are expressly qualified in their entirety by
this cautionary statement. Except as required by law, the Company undertakes
no obligation to publicly update or revise any forward-looking statements.
Investors are encouraged to review and consider the additional risk factors
set forth in the Company's Annual Information Form, which is available on
SEDAR at http://www.sedar.com .

Any references in this news release to test rates, flow rates, initial and/or
final raw test or production rates, early production and/or "flush" production
rates are useful in confirming the presence of hydrocarbons, however, such
rates are not necessarily indicative of long-term performance or of ultimate
recovery. Such rates may also include recovered "load" fluids used in well
completion stimulation. Readers are cautioned not to place reliance on such
rates in calculating the aggregate production for Madalena. In addition, the
Vaca Muerta shale is an unconventional resource play which may be subject to
high initial decline rates.

All calculations converting natural gas to barrels of oil equivalent ("boe")
have been made using a conversion ratio of six thousand cubic feet (six "Mcf")
of natural gas to one barrel of oil, unless otherwise stated. The use of boe
may be misleading, particularly if used in isolation, as the conversion ratio
of six Mcf of natural gas to one barrel of oil is based on an energy
equivalency conversion method primarily applicable at the burner tip and does
not represent a value equivalency at the wellhead. Given that the value ratio
based on the current price of crude oil as compared to natural gas is
significantly different from the energy equivalency of 6:1, utilizing a
conversion on a 6:1 basis may be misleading as an indication of value.

Neither the TSX Venture Exchange nor its Regulation Service Provider (as that
term is defined in the policies of the TSX Venture Exchange) accepts
responsibility for the adequacy or accuracy of this release.

Analogous Information Certain information in this document may constitute
"analogous information" as defined in National Instrument 51-101 - Standards
of Disclosure for Oil and Gas Activities (" NI 51-101 "), including, but not
limited to, information relating to the areas in geographical proximity to
prospective lands held by Madalena and production information related to wells
that are believed to be on trend with the Company's properties. Such
information has been obtained from government sources, regulatory agencies or
other industry participants. Management of Madalena believes the information
is relevant as it helps to define the reservoir characteristics in which
Madalena may hold an interest. Madalena is unable to confirm that the
analogous information was prepared by a qualified reserves evaluator or
auditor. Such information is not an estimate of the reserves or resources
attributable to lands held or to be held by Madalena and there is no certainty
that the reservoir data and economics information for the lands held or to be
held by Madalena will be similar to the information presented herein. The
reader is cautioned that the data relied upon by Madalena may be in error
and/or may not be analogous to such lands to be held by Madalena.

Total Organic Content ("TOC") Any references in this news release to TOC
levels is useful in determining the presence of organic material and the
likelihood of the discovery of hydrocarbons, however, the presence of such
levels of TOC is not necessarily indicative of ultimate recovery, economic or
otherwise, of hydrocarbons. Readers are cautioned not to place reliance on
such levels in calculating the aggregate reserves or resources for Madalena.

For further information: Kevin Shaw, P.Eng, MBA  President and Chief
Executive Officer Madalena Ventures Inc. Phone: +1(403)262-1901 (Ext. 230)
kdshaw@madalena-ventures.com
 
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