Anterra and Terrex Announce Mailing of Business Combination Circular and Amendment to Arrangement

Anterra Energy Inc. (TSX VENTURE:AE.A) ("Anterra" or the "Company") and Terrex
Energy Inc. (TSX VENTURE:TER) ("Terrex") are pleased to jointly announce that
the information circular (the "Information Circular") prepared in connection
with the previously announced proposed business combination involving Anterra
and Terrex (the "Arrangement") has been mailed to the holders of Terrex shares
and warrants. As previously announced, the special meeting of Terrex
securityholders (the "Meeting") is scheduled to be held on March 13, 2013, and
the closing of the Arrangement is expected to occur on or about March 14, 2013.
The Arrangement involves the acquisition, by Anterra, of all of the issued and
outstanding common shares in the capital of Terrex ("Terrex Shares") and full
details of the Arrangement may be found in the Information Circular, a copy of
which will be available under Terrex's issuer profile on SEDAR at www.sedar.com.
The Terrex Board of Directors has unanimously recommended that Terrex
securityholders vote in favour of the Arrangement at the Meeting.  


As part of the Arrangement and further to the previously announced settlements
of Terrex severance and success fee obligations to current and former officers,
employees and consultants (the "Terrex Personnel Obligations") as disclosed in
the December 21, 2012 joint press release, Terrex and Anterra have amended the
terms of the Arrangement relating to the Terrex Personnel Obligations. The
portion of the Terrex Personnel Obligations previously agreed to be settled with
8,200,000 Terrex Shares will now be settled by the issuance of an aggregate of
1,866,560 Class A common shares in the capital of Anterra ("Anterra Shares"),
such Anterra Shares to be issued at a price of $0.05 per Anterra Share. A copy
of the agreement amending the Arrangement will be available under each of
Anterra's and Terrex's issuer profiles on SEDAR and further details of the
Terrex Personnel Obligations are set out in the Information Circular.


About Anterra Energy Inc. 

Anterra Energy is an independent exploration, development and production company
with an emerging focus on the use of advanced exploration technologies including
3-D imaging, horizontal drilling and multi-stage completions to systematically
develop its portfolio of conventional and non-conventional oil and gas projects.
Complementing this strong exploitation and development focus, the Company owns
and operates fee-based midstream facilities in western Canada. Anterra is a
public Canadian company listed on the TSXV under the symbol AE.A. More
information about Anterra is available on the Company's website at
www.anterraenergy.com. 


About Terrex Energy Inc. 

Terrex Energy Inc. is a Calgary based junior oil company that focuses on the
application of proven enhanced oil recovery ("EOR") methods to improve oil
production from existing mature fields. Terrex targets underexploited and
undercapitalized light to medium oil reservoirs in Western Canada. The Company's
shares are listed on the TSXV under the trading symbol "TER". 


Forward-Looking Information and Cautionary Statements 

This press release contains forward-looking information and statements within
the meaning of applicable securities laws and are based on the expectations,
estimates and projections of management of Anterra and Terrex as of the date of
this news release unless otherwise stated. More particularly and without
limitation, this press release contains forward-looking information and
statements concerning: the timing and anticipated receipt of required
regulatory, court and securityholder approvals for the transaction; the ability
of Anterra and Terrex to satisfy the other conditions to, and to complete, the
Arrangement; the anticipated timing of the holding of the Terrex Meeting and the
closing of the Arrangement. 


In respect of the forward-looking information and statements concerning the
anticipated timing for completion of the Arrangement, Anterra and Terrex have
provided such in reliance on certain assumptions that it believes are reasonable
at this time, including assumptions as to the ability of Anterra and Terrex to
receive, in a timely manner, the necessary government, regulatory, court,
securityholder, stock exchange and other third party approvals; the ability of
Anterra and Terrex to satisfy, in a timely manner, the other conditions to the
closing of the Arrangement. The anticipated dates provided may change for a
number of reasons, including inability to secure necessary securityholder,
government, regulatory, court or other third party approvals in the time assumed
or the need for additional time to satisfy the other conditions to the
completion of the Arrangement. Accordingly, readers should not place undue
reliance on the forward-looking information and statements contained in this
press release. 


FOR FURTHER INFORMATION PLEASE CONTACT: 
Anterra Energy Inc.
Gang Fang
Chief Executive Officer
[phone]
[phone] (FAX)
[e-mail]


Anterra Energy Inc.
Owen C. Pinnell
Chairman
[phone]
[phone] (FAX)
[e-mail]
www.anterraenergy.com


Terrex Energy Inc.
Jonathan Lexier
President & CEO
[phone]


Terrex Energy Inc.
Norman Knecht
VP Finance and CFO
[phone]
www.terrexenergy.ca