Arsenal (TSX:AEI) is pleased to release its Q4 and full year 2010 financial
results and yearend 2010 reserve report. Q4 results are highlighted by a 47%
increase in cash flow vs. Q409 due to increases in production and reductions in
unit costs. Proven plus probable reserves grew 20% from 8.6 million boe to 10.4
million boe for an all in FD&A cost of $10.13/boe. Most of the added reserves
are high quality, low cost Bakken oil reserves in North Dakota.


Financial

Cash flow from operations in the fourth quarter was $5.1 million ($0.04/share).
This is an increase of 47% vs. the comparable period in 2009. The increase is
due to a 14% increase in production volumes, a 20% decrease in unit operating,
transportation, and royalty costs, and a 48% decrease in unit overhead and
financing charges. These improvements were partially offset by lower unit
revenue due to lower price realizations for natural gas. Annual cash flow of
$18.3 million was flat year over year but 2009 included $9.2 million in hedge
realizations vs. $1.8 million in 2010. Net income for the quarter was nil but
continues the quarterly trend toward profitability.


Capital expenditures for Q4 2010 totaled $13.0 million increasing 272% over the
$3.5 million expended in Q4 2009. Total debt at yearend was $18.8 million. A
subsequent $20 million net equity raise in the first quarter has left the
company essentially debt free.


Operations

Average production of 2132 boe/d for Q4 was an increase of 14% from Q4 2009.
This increase is attributable to growing production volumes from the Bakken in
North Dakota partially offset by noncore property sales.


Arsenal's Q4 production mix was 76% oil and liquids and 24% natural gas. Lower
natural gas prices resulted in 8% lower overall boe prices vs. 2009 but
operating netbacks of $29.28/boe were slightly higher due to lower operating
costs and royalties. Operating costs decreased to $16.98/boe in Q4 2010 from
$19.94/boe in 2009. This decrease is due to the averaging in of lower cost
Bakken production and the sale of noncore high cost production. Operating
margins should continue to improve as additional Bakken production is brought
on.


Arsenal participated in the drilling of 10.2 net wells in the fourth quarter.
Results of those wells have been previously released. Due to a severe shortage
of equipment and trained people in North Dakota, Arsenal's production growth has
been slower than anticipated. Although frustrating, these problems are common in
booms like North Dakota and Arsenal anticipates that they will work themselves
out over the medium term.


SUMMARY OF FINANCIAL AND OPERATIONAL RESULTS



                                            Three Months Ended December 31  
----------------------------------------------------------------------------
                                         2010             2009    % Change  
----------------------------------------------------------------------------
FINANCIAL                                                                   
----------------------------------------------------------------------------
Oil and gas revenue                11,250,143       10,759,516           5  
Cash provided by operation                                                  
 activities                         5,490,041        4,012,924          37  
Funds from operations(1)            5,119,249        3,471,910          47  
  Per share - basic                      0.04             0.03           9  
            - diluted                    0.04             0.03           6  
Net loss                             (233,679)      (2,845,384)        (92) 
  Per share - basic                         -            (0.03)          -  
            - diluted                       -            (0.03)          -  
Total debt                         18,787,775       28,739,421         (35) 
Capital expenditures               12,989,217        3,491,484         272  
Property acquisitions               2,184,049          479,084         356  
Property dispositions                       -         (634,095)          -  
Wells drilled (net)                                                         
  Oil                                    4.83             1.50         222  
  Gas                                    1.00                -           -  
  Drilling at year end                   1.40                -           -  
  Dry                                    3.00             1.25         140  
                              ----------------------------------            
Total net wells drilled                 10.23             2.75         272  
Shares outstanding - end of                                                 
 year                             140,812,472      120,461,890          17  
----------------------------------------------------------------------------
OPERATIONAL                                                                 
----------------------------------------------------------------------------
Daily production                                                            
----------------------------------------------------------------------------
Heavy oil (bbl/d)                         556              721         (23) 
Light oil and NGLs (bbl/d)              1,055              851          24  
Natural gas (mcf/d)                     3,131            1,804          74  
----------------------------------------------------------------            
Oil equivalent (boe @ 6:1)(2)           2,132            1,872          14  
----------------------------------------------------------------------------
Realized commodity prices                                                   
 ($Cdn.)                                                                    
----------------------------------------------------------------------------
Heavy oil (bbl)                         66.81            65.65           2  
Light oil and NGLs (bbl)                71.17            72.06          (1) 
Natural gas (mcf)                        3.23             4.62         (30) 
----------------------------------------------------------------            
Oil equivalent (boe @ 6:1)              57.36            62.48          (8) 
----------------------------------------------------------------------------
Operating netback ($ per boe)                                               
----------------------------------------------------------------------------
Revenue                                 57.36            62.48          (8) 
Royalty                                 (9.95)          (12.57)        (21) 
Operating cost                         (16.98)          (19.94)        (15) 
Transportation cost                     (1.15)           (2.62)        (56) 
----------------------------------------------------------------            
Operating netback per boe               29.28            27.36           7  
General and administrative              (3.57)           (6.23)        (43) 
Finance charges and fees                (0.83)           (2.22)        (63) 
Other                                   (0.14)            0.16        (189) 
Realized hedging gains                                                      
 (losses)                                1.36             1.09          25  
----------------------------------------------------------------            
Cash flow per Boe                       26.10            20.16          29  
----------------------------------------------------------------------------

                                                    Year Ended December 31 
--------------------------------------------------------------------------
                                         2010             2009    % Change 
--------------------------------------------------------------------------
FINANCIAL                                                                 
--------------------------------------------------------------------------
Oil and gas revenue                43,665,720       36,941,862          18 
Cash provided by operation                                                
 activities                        13,168,825       18,102,343         (27)
Funds from operations(1)           18,295,623       18,706,728          (2)
  Per share - basic                      0.14             0.18         (24)
            - diluted                    0.13             0.18         (25)
Net loss                           (7,675,077)     (11,050,516)        (31)
  Per share - basic                     (0.06)           (0.11)        (46)
            - diluted                   (0.06)           (0.11)        (46)
Total debt                         18,787,775       28,739,421         (35)
Capital expenditures               28,042,311       10,471,357         168 
Property acquisitions               2,259,529          479,084         372 
Property dispositions              (5,919,077)      (4,121,234)         44 
Wells drilled (net)                                                       
  Oil                                    7.11             2.51         183 
  Gas                                    1.00                -           - 
  Drilling at year end                   1.40                -           - 
  Dry                                    3.00             1.25         140 
                             ----------------------------------           
Total net wells drilled                 12.51             3.76         233 
Shares outstanding - end of                                               
 year                             140,812,472      120,461,890          17 
--------------------------------------------------------------------------
OPERATIONAL                                                               
--------------------------------------------------------------------------
Daily production                                                          
--------------------------------------------------------------------------
Heavy oil (bbl/d)                         603              754         (20)
Light oil and NGLs (bbl/d)                985              792          24 
Natural gas (mcf/d)                     3,032            3,235          (6)
---------------------------------------------------------------           
Oil equivalent (boe @ 6:1)(2)           2,093            2,085           0 
--------------------------------------------------------------------------
Realized commodity prices                                                 
 ($Cdn.)                                                                  
--------------------------------------------------------------------------
Heavy oil (bbl)                         64.48            55.20          17 
Light oil and NGLs (bbl)                69.99            59.02          19 
Natural gas (mcf)                        3.91             3.97          (2)
---------------------------------------------------------------           
Oil equivalent (boe @ 6:1)              57.17            48.54          18 
--------------------------------------------------------------------------
Operating netback ($ per boe)                                             
--------------------------------------------------------------------------
Revenue                                 57.17            48.54          18 
Royalty                                (10.25)           (8.91)         15 
Operating cost                         (18.38)          (17.98)          2 
Transportation cost                     (1.07)           (1.42)        (25)
---------------------------------------------------------------           
Operating netback per boe               27.46            20.22          36 
General and administrative              (4.61)           (4.63)         (0)
Finance charges and fees                (1.34)           (2.09)        (36)
Other                                    0.09            (1.02)       (109)
Realized hedging gains                                                    
 (losses)                                2.34            12.10         (81)
---------------------------------------------------------------           
Cash flow per Boe                       23.95            24.58          (3)
--------------------------------------------------------------------------



(1)"Funds from operations", "funds from operations per share", "netbacks" and
"netbacks per boe" are not defined by Generally Accepted Accounting Principles
("GAAP") in Canada and are regarded as non-GAAP measures. Funds from operations
and funds from operations per share are calculated as cash provided by operating
activities before changes in non-cash working capital and asset retirement
expenditures. Funds from operations is used to analyze the Company's operating
performance, the ability of the business to generate the cash flow necessary to
fund future growth through capital investment and to repay debt. Funds from
operations does not have a standardized measure prescribed by GAAP and therefore
may not be comparable with the calculations of similar measures for other
companies. The Company also presents funds from operation per share whereby per
share amounts are calculated using the weighted average number of common shares
outstanding consistent with the calculation of net income or loss per share.


(2) The term barrels of oil equivalent ("boe") may be misleading, particularly
if used in isolation. A boe conversion ratio of six thousand cubic feet per
barrel (6 mcf/bbl) of natural gas to barrels of oil equivalence is based on an
energy equivalency conversion method primarily applicable at the burner tip and
does not represent a value equivalency at the wellhead. All boe conversions in
the report are derived from converting gas to oil in the ratio mix of six
thousand cubic feet of gas to one barrel of oil.


Reserves Summary

Reserves as at December 31, 2010, as independently evaluated by AJM Petroleum
Consultants ("AJM"), in accordance with National Instrument 51-101 Standards of
Disclosure for Oil and Gas Reserves ("NI 51-101"). Arsenal's full NI 51-1-1 F1 -
Statements of Reserves Data and Other Oil and Gas Information is filed in
Arsenal's Annual Information Form on SEDAR - "www.SEDAR.com


The following tables summarize certain information related to Arsenal's oil and
gas reserves as of December 31, 2010 based on forecast price and cost
assumptions:




                                                               Natural Gas  
             Light / Medium Oil            Heavy Oil               Liquids  
----------------------------------------------------------------------------
                                                                            
                Gross       Net     Gross        Net      Gross        Net  
             (Mbbl)(1) (Mbbl)(2)    (Mbbl)     (Mbbl)     (Mbbl)     (Mbbl) 
----------------------------------------------------------------------------
Proved                                                                      
 Producing       2289      1862       187        169        143        110  
----------------------------------------------------------------------------
Proved Non                                                                  
 Producing        172       145        30         27          5          3  
----------------------------------------------------------------------------
Proved                                                                      
 Undeveloped     3545      2729        19         17         16         13  
----------------------------------------------------------------------------
Total                                                                       
 Proved          6006      4736       235        214        163        126  
----------------------------------------------------------------------------
Probable         2474      1956       371        322         58         45  
----------------------------------------------------------------------------
Total                                                                       
 Proved +                                                                   
 Probable        8480      6692       606        535        221        172  
----------------------------------------------------------------------------

                                      Barrels of Oil 
                    Natural Gas        Equivalent (3) 
------------------------------------------------------
                                                      
                Gross       Net     Gross        Net 
                (MMcf)    (MMcf)    (MBOE)     (MBOE)
------------------------------------------------------
Proved                                                
 Producing       3774      3126      3247       2663 
------------------------------------------------------
Proved Non                                            
 Producing        722       605       326        277 
------------------------------------------------------
Proved                                                
 Undeveloped      392       312      3645       2810 
------------------------------------------------------
Total                                                 
 Proved          4887      4043      7219       5750 
------------------------------------------------------
Probable         2066      1699      3248       2606 
------------------------------------------------------
Total                                                 
 Proved +                                             
 Probable        6954      5741     10466       8355 
------------------------------------------------------



Reserves Values

The estimated future net revenues before taxes associated with Arsenal's
reserves effective December 31, 2010 and based on the AJM future price forecast
are summarized in the following table:




                          0 % DCF       5 % DCF      10 % DCF      15 % DCF 
                         (MM$ Cdn)     (MM$ Cdn)     (MM$ Cdn)     (MM$ Cdn)
                                                                            
                                                                            
----------------------------------------------------------------------------
Proved Producing              117            82            65            55 
----------------------------------------------------------------------------
Proved Non Producing           14             9             7             6 
----------------------------------------------------------------------------
Proved Undeveloped            215           112            71            49 
----------------------------------------------------------------------------
Total Proved                  346           203           143           110 
----------------------------------------------------------------------------
Probable                      243           101            58            39 
----------------------------------------------------------------------------
Total Proved +                                                              
 Probable                     589           304           201           150 
----------------------------------------------------------------------------



Price Forecast

AJM employed the following pricing, exchange rate, and inflation rate
assumptions in estimating Arsenal's reserve data as of

December 31, 2010:



----------------------------------------------------------------------------
                                                                      NGLs  
                             WTI      Edmonton                    Edmonton  
                         Cushing     Par Price   Natural Gas       Butanes  
Year                    Oklahoma        40 API  AECO-C Price    Plant Gate  
Forecast                ($US/Bbl)    ($Cdn/Bbl)  ($Cdn/MMBtu)    ($Cdn/Bbl) 
----------------------------------------------------------------------------
2011                       85.00         82.80          4.10         70.40  
----------------------------------------------------------------------------
2012                       89.25         88.80          4.60         75.50  
----------------------------------------------------------------------------
2013                       91.55         94.05          5.20         79.95  
----------------------------------------------------------------------------
2014                       95.50         98.15          5.50         83.45  
----------------------------------------------------------------------------
2015                      102.85        105.80          5.75         89.95  
----------------------------------------------------------------------------
Thereafter              + 2 %/yr      + 2 %/yr      + 2 %/yr      + 2 %/yr  
----------------------------------------------------------------------------

-------------------------------------------------------------
                            NGLs                              
                        Edmonton                              
                        Pentanes     Inflation      Exchange 
Year                  Plant Gate          Rate          Rate 
Forecast               ($Cdn/Bbl)           (%)    ($US/$Cdn)
-------------------------------------------------------------
2011                       86.95          0.00          1.00 
-------------------------------------------------------------
2012                       93.25          2.00          0.98 
-------------------------------------------------------------
2013                       98.75          2.00          0.95 
-------------------------------------------------------------
2014                      103.50          2.00          0.95 
-------------------------------------------------------------
2015                      111.10          2.00          0.95 
-------------------------------------------------------------
Thereafter              + 2 %/yr        2 %/yr          0.95 
-------------------------------------------------------------


Year End Reconciliation

----------------------------------------------------------------------------
                  Open                                                Close
                Dec.31,  Acquired  Production   Activity            Dec. 31,
                  2009      /Sold          (4)      Adds  Revisions    2010
----------------------------------------------------------------------------
TP (MBOE)        5,618        392        (764)       765      1,208   7,219
----------------------------------------------------------------------------
TP Value (10%                                                               
 DNAV MM$                                                                   
 Cdn)              132         -4         -21         14         22     143
----------------------------------------------------------------------------
                                                                            
P+P (MBOE)       8,662        371        (764)     1,078      1,119  10,466
----------------------------------------------------------------------------
P+P Value                                                                   
 (10% DNAV                                                                  
 MM$ Cdn)          202         -4         -21         10         14     201
----------------------------------------------------------------------------



Based on the Q4 estimated production rate of 2,132 Boe/d, Arsenal has a reserve
life of 9.3 years based on total proved and 13.4 years based on proved plus
probable reserves.


Reserves Addition Costs



----------------------------------------------------------------------------
                                                     Change in              
                             Reserve                    Future              
                                Adds   2010 Capex        Capex   FD&A Costs 
                               (MBOE)     (K$ Cdn)     (K$ Cdn)      ($/BOE)
----------------------------------------------------------------------------
Total Proved                   2,366    24,383 (5)       5,052        12.44 
----------------------------------------------------------------------------
Total Proved + Probable        2,568       24,383        1,637        10.13 
----------------------------------------------------------------------------



On a total proved basis, reserves increased by 1,602 MBoe and reserves per 1
million shares increased by 4,700 Boe (10 %). Additions replaced production by
209%.


On a total proved plus probable basis, reserves increased by 1,804 MBoe and
reserves per 1 million shares increased by 2,500 Boe (3.5 %). Additions replaced
production by 236%.


Year End Net Asset Value

The following tables summarize certain information related to Arsenal's oil and
gas reserves as of December 31, 2010 based on forecast price and cost
assumptions:




                   31-Dec-06   31-Dec-07   31-Dec-08   31-Dec-09  31-Dec-10
----------------------------------------------------------------------------
P+P PV (10% DNAV                                                            
 MM$)                   77.1        87.6       166.4       200.8      201.4
----------------------------------------------------------------------------
Land (MM$)               1.5         1.5         2.0         2.0      6.4(6)
----------------------------------------------------------------------------
Seismic (MM$)            0.3         0.8         0.9         1.0      2.0(7)
----------------------------------------------------------------------------
Debt + Working                                                              
 Capital (MM$)         -28.5       -20.7       -41.8       -27.0      -18.8
----------------------------------------------------------------------------
NAV (MM$)               50.4        69.2       127.5       176.8      191.0
----------------------------------------------------------------------------
Shares                                                                      
 Outstanding                                                                
 (MM)                   73.3        83.7       101.6       120.5    140.8(8)
----------------------------------------------------------------------------
P+P NAV/Share                                                               
 ($/share)(9)    $      0.69 $      0.83 $      1.25 $      1.47 $     1.36
----------------------------------------------------------------------------

Notes:

1.  "Company Gross" reserves means AEI working interest (operated and non-
    op) share before deduction of royalties and excluding any royalty
    interest. 
2.  "Net" reserves means AEI working interest (operated and non-op) after
    deduction of royalties, plus AEI royalty interest in reserves. 
3.  Oil equivalent amounts have been calculated using a conversion rate of
    six thousand cubic feet of natural gas to one barrel of oil. 
4.  Numbers are unaudited management estimates. 
5.  Capital includes costs and proceeds of property sales and acquisitions. 
6.  64 thousand net acres of undeveloped land at $100/acre 
7.  200 km2 of proprietary seismic at $10,000/km2 
8.  Undiluted 
9.  Unaudited 



Outlook

Arsenal has five priorities for 2011. The first priority is to bring more of its
Stanley, North Dakota Bakken reserves into production. At January 1st Arsenal
had an inventory of 10 budgeted gross (4.7 net) proven non producing locations
on 640 acre spacing. Three have now been drilled with one on production. A
fourth is currently drilling. Arsenal has a drilling rig for the program and is
working to secure a frac crew. The first year average production rate to date at
Stanley has been 260 bbls/d/well with initial rates much higher.


The second priority for 2011 is to advance Arsenal's Bakken/Three Forks
depletion plan. Arsenal's independent engineers (AJM) have booked the
Bakken/Three Forks complex on one well per spacing unit with an 8% recovery
factor for proven and two wells per spacing unit with a 12% recovery factor for
proven plus probable. Arsenal has simulated the reservoirs and designed an
optimal depletion plan. The plan calls for four wells per 1280 acre spacing unit
and three wells per 640 acre spacing unit with a total recovery factor of 16%.
AJM has evaluated this plan and has booked as possible reserves an additional 4
million barrels with an incremental NPV of $75 million. Beyond that, further
increases in recovery may be attainable through water or gas injection. This
plan is consistent with other area operators.


The third priority is to advance Bakken development at Rennie Lake in Burke
County where Arsenal has 2500 net acres of undeveloped Bakken rights. Successful
wells have been drilled surrounding Arsenal's lands. Arsenal currently has no
production or booked reserves on its Rennie Lake property.


The fourth priority is the establishment of a new core oil property. Arsenal has
three play concepts that will be tested in the second quarter. At Edgerton,
Alberta, Arsenal has recently shot a 3D seismic program and identified a large
Leduc subcrop structure. At Princess, Alberta, Arsenal is installing high volume
lift to test the productive capability of its 5 Detrital formation wells. Also
at Princess, Arsenal plans to drill a horizontal well into the Glauconitic
formation to test the capability of multi fracturing to increase production.
Each of these has the potential to prove up material oil development
opportunities for Arsenal going forward. In addition, Arsenal is essentially
debt free and evaluating potential acquisitions using an undrawn $40 million
borrowing base.


The fifth priority is continued land acquisition in the Alberta deep basin
Falher formation play. Arsenal is acquiring acreage at relatively low prices and
is looking forward to a time when higher gas prices will make the development of
this play attractive. Arsenal has acquired 15,000 net acres in this play to
date.


Based on the current forward strip, Arsenal anticipates that it will achieve
operating margins in excess of $37/boe in 2011. Arsenal anticipates an exit
production rate of 3000boe/d. Capital expenditures are currently estimated at
$54 million for 2011. This is expected to yield funds from operations before
interest and overhead of approximately $37 million and cash flow of $30 million.


Arsenal has filed its Annual Information Form which contains Arsenal's reserves
data and other oil and gas information for the year ended December 31, 2010 as
mandated by National Instrument 51-101 Standards of Disclosure for Oil and Gas
Activities of the Canadian Securities Administrators. A copy of Arsenal's Annual
Information Form can be obtained on the System for Electronic Document Analysis
and Retrieval website at www.sedar.com or by contacting Arsenal.


Advisory

Certain statements and information contained in this press release, including
but not limited to management's assessment of Arsenal's future plans and
operations, production, reserves, revenue, commodity prices, operating and
administrative expenditures, funds from operations, capital expenditure programs
and debt levels contain forward-looking statements. All statements other than
statements of historical fact may be forward looking statements. These
statements, by their nature, are subject to numerous risks and uncertainties,
some of which are beyond Arsenal's control including the effect of general
economic conditions, industry conditions, changes in regulatory and taxation
regimes, volatility of commodity prices, escalation of operating and capital
costs, currency fluctuations, the availability of services, imprecision of
reserve estimates, geological, technical, drilling and processing problems,
environmental risks, weather, the lack of availability of qualified personnel or
management, stock market volatility, the ability to access sufficient capital
from internal and external sources and competition from other industry
participants for, among other things, capital, services, acquisitions of
reserves, undeveloped lands and skilled personnel that may cause actual results
or events to differ materially from those anticipated in the forward looking
statements. Such forward-looking statements, although considered reasonable by
management at the time of preparation, may prove to be incorrect and actual
results may differ materially from those anticipated in the statements made and
should not unduly be relied on. These statements speak only as of the date of
this press release. Arsenal does not intend and does not assume any obligation
to update these forward-looking statements, whether as a result of new
information, future events or otherwise, except as required by applicable law.
Arsenal's business is subject to various risks that are discussed in its filings
on the System for Electronic Document Analysis and Retrieval (SEDAR).