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Diaz Files Statement of Reserves Data and Other Oil and Gas Information as of December 31, 2012

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(i) Net is the Corporation's working interest (operating and non-operating) share after deduction of royalty obligations, plus the Corporation's royalty interests in production or reserves.

                            NET PRESENT VALUES OF FUTURE NET REVENUE                    -------------------------------------------------------COMPANY TOTAL                         BEFORE INCOME TAXES--------------------                                   DISCOUNTED AT (% per year)                         0          5          10         15         20RESERVES CATEGORY      (MM$)      (MM$)      (MM$)      (MM$)      (MM$)---------------------------------------------------------------------------PROVED  Producing                6.45       5.87       5.42       5.06       4.76  Non-producing            0.75       0.76       0.73       0.68       0.63  Undeveloped              1.46       1.13       0.87       0.65       0.47---------------------------------------------------------------------------TOTAL PROVED               8.66       7.76       7.02       6.39       5.86PROBABLE                   8.29       6.48       5.14       4.15       3.40---------------------------------------------------------------------------TOTAL PROVED PLUS PROBABLE                 16.95      14.24      12.16      10.54       9.26---------------------------------------------------------------------------                            NET PRESENT VALUES OF FUTURE NET REVENUE                    --------------------------------------------------------COMPANY TOTAL                           AFTER INCOME TAXES--------------------                                    DISCOUNTED AT (% per year)                          0          5          10         15         20RESERVES CATEGORY       (MM$)      (MM$)      (MM$)      (MM$)      (MM$)----------------------------------------------------------------------------PROVED  Producing                 6.45       5.87       5.42       5.06       4.76  Non-producing             0.75       0.76       0.73       0.68       0.63  Undeveloped               1.46       1.13       0.87       0.65       0.47----------------------------------------------------------------------------TOTAL PROVED                8.66       7.76       7.02       6.39       5.86PROBABLE                    8.29       6.48       5.14       4.15       3.40----------------------------------------------------------------------------TOTAL PROVED PLUS PROBABLE                  16.95      14.24      12.16      10.54       9.26----------------------------------------------------------------------------Pricing Used in Evaluation              SUMMARY OF PRICING AND INFLATION RATE ASSUMPTIONS                           AS OF DECEMBER 31, 2012                          FORECAST PRICES AND COSTS                                      OIL                  NATURAL GAS                       -----------------------------------------------------                              WTI   Edmonton  Bow River                          Cushing      Light   Hardisty       AECO     NYMEX     Inflation Exchange  Oklahoma  Par Price  Par Price  Gas Price Gas PriceYEAR      Rate     Rate ($US/bbl) ($Cdn/bbl) ($Cdn/bbl) ($Cdn/Mcf) ($US/Mcf)----------------------------------------------------------------------------2013      2.0%    1.000     92.50      87.50      75.30       3.35      3.752014      2.0%    1.000     92.50      90.50      77.80       3.85      4.302015      2.0%    1.000     93.60      92.60      79.60       4.35      4.852016      2.0%    1.000     95.50      94.50      81.30       4.70      5.252017      2.0%    1.000     97.40      96.40      82.90       5.10      5.702018      2.0%    1.000     99.40      98.30      84.50       5.45      6.102019      2.0%    1.000    101.40     100.30      86.30       5.55      6.202020      2.0%    1.000    103.40     102.30      88.00       5.70      6.352021      2.0%    1.000    105.40     104.30      89.70       5.80      6.452022      2.0%    1.000    107.60     106.50      91.60       5.90      6.602023      2.0%    1.000    109.70     108.50      93.30       6.00      6.702024      2.0%    1.000    111.90     110.70      95.20       6.15      6.852025      2.0%    1.000    114.10     112.90      97.10       6.25      7.002026      2.0%    1.000    116.40     115.20      99.10       6.35      7.102027      2.0%    1.000    118.80     117.50     101.10       6.50      7.25After   +2%/yr   +2%/yr    +2%/yr     +2%/yr     +2%/yr     +2%/yr    +2%/yr----------------------------------------------------------------------------

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