Xtierra Completes Successful Drilling Program on Bilbao Project

Xtierra Inc. (TSX VENTURE:XAG) ("Xtierra" or the "Company") is pleased to
announce the successful completion of an additional drilling campaign in the
southern part of its silver-zinc-lead-copper project in the state of Zacatecas,
Mexico. All six drill-holes, with a total of 1784.10 metres, encountered thick
intersections of good grade mineralization with notable high grade silver
intersections throughout. Four of the drill-holes showed highly mineralized
intervals comprising massive to semi-massive sulfide mineralization varying
between 20 and 40m in thickness. A summary of the principal intersections for
each of the drill-holes is listed below. 


Commenting on the results from the drilling campaign Gerry Gauthier, President
and Chief Operating Officer of Xtierra, said, "The fact that good grade
mineralization has been discovered in all the drill-holes means we can be
assured of the continuity of the sulfide mineralization down dip which in turn
will enable us to refine our mining plan. It is particularly encouraging that
the main Zn-Pb-Cu mineralization is associated with significant silver and
sporadic high gold grades which are additional sweeteners for the Bilbao
deposit."




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# DDH           From       To       m   Ag g/t   Au g/t   Cu %   Pb %   Zn %
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P1            171.00   190.00   19.00      108      0.0   0.18   1.57   0.35
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P1            215.00   217.90    2.90      136      0.0   0.21   2.62   0.72
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P1            234.00   241.50    7.50      183      0.0   0.20   3.23   1.52
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P1            316.00   317.00    1.00     1030      0.0   0.02   0.44   0.31
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P2            240.35   243.00    2.65       89      0.0   0.31   5.72   5.47
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P3            204.80   220.30   15.50       48      0.0   0.08   1.60   1.36
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P3            237.50   256.00   18.50      200       ++   0.22   1.37   0.97
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Inc P3        243.00   244.00    1.00      925     5.29   0.08   2.80   0.25
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P4            109.10   113.00    3.90      163      0.0   0.01   0.18   0.13
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P4            247.40   270.00   22.60      104       ++   0.65   1.23   2.10
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Inc P4        269.00   270.00    1.00      104     1.19   0.36   0.50   2.80
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Z2a           116.00   138.00   22.00       92      0.0   0.80   7.17   2.05
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Z2a           150.70   159.85    9.15       38      0.0   0.99   0.39   1.30
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Z2a           174.10   177.00    2.90      136        +   0.12   2.01   0.67
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Z2a           208.95   212.35    3.40       73      0.0   0.25   1.44   1.53
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Z3            234.30   274.00   39.70      148      0.0   0.52   2.23   5.51
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True width is not known at this time                                        



It can also be seen in the above table that some sections of drill-holes P3 and
P4 have elevated gold values. Of particular note is that within the main sulfide
pod between 243.00 and 244.00m in DDH P3 a 1 metre interval intersected 5.29 g/t
Au together with 925 g/t Ag as well as base metal values. In like manner
drill-hole P1 had in excess of 1kg/t Ag in a calcitic breccia close to the
granite contact.


The objective of this drilling campaign was to provide confirmation of
continuity of mineralization between drill-holes on closer drill spacing than
the earlier 50m grid and thereby identify additional resources in the Indicated
category. This recent drilling campaign has confirmed the expected continuity of
the upper silver breccia zone as well as the main lower sulfide body and so can
be said to have achieved and even surpassed its objectives. A revised 43-101
compliant resource will be available August 2013.


RungePincockMinarco (RPM) is currently finalizing a Pre-Feasibility Document on
the Bilbao project and results from this phase of drilling will be incorporated
in that report to produce a revised estimate for the mineable tonnage and grade
of the deposit. It is expected that this report will be completed in September
2013.


Analytical Methods Utilized

Samples from half-core were prepared at the ALS laboratory in Zacatecas and
initially analyzed for 51 element content using ICP-MS (inductively coupled
plasma - mass spectrometry) by ALS in Kamloops, British Columbia, Canada. Values
exceeding the limits of detection were automatically re-analyzed by ICP-AES
sodium peroxide fusion for ore grade base-metal material and by Fire Assay for
precious metals. Standards, blanks and duplicate samples were used
systematically throughout the sample stream for quality control. 


Qualified Persons

Information of a scientific or technical nature contained in this release has
been prepared by or under the supervision of Dr. Anthony C. Gallon, C.Eng.,
Xtierra's Chief Geologist, a 'qualified person' within the meaning of National
Instrument 43-101 - Standards of Disclosure for Mineral Projects of the Canadian
Securities Administrators.


About Xtierra Inc.

Xtierra Inc. is a Toronto based exploration and development company listed on
the TSX Venture Exchange under the symbol "XAG". There are 103,272,142 shares
issued and outstanding. The Company is completing a pre-feasibility study on its
Bilbao silver-zinc-lead-copper project in Zacatecas, Mexico. Xtierra's objective
is to become a mid-tier producer of precious and base metals through the
development of its Bilbao project as well as through exploration, organic growth
and M & A opportunities.


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


FOR FURTHER INFORMATION PLEASE CONTACT: 
Xtierra Inc.
Gerry Gauthier
President & Chief Operating Officer
[phone]


Xtierra Inc.
Tim Gallagher
Director
[phone]


Xtierra Inc.
Alejandro Alaniz
Director Finance & Administration (Mexico)
[phone]?0804