| NGX Alberta Market Price |
| Market Date | Buy/Sell | Product Name | Trade Size/Day | Weighted Average | Index Price | Index Calc | mmbtu/GJ 1.055056 | US$ to CDN Avg Noon Day Rate | Final Converted to GJs | Final Price | Value | Cumulative Daily Average |
| 01-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9839 | 4,801,771 | 1.5445 | 7,416,335 | 1.6552 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,012.102 | 1.7304 | | 1.7304 | | | 10,012,102 | 1.7304 | 17,324,941 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 199.300 | .0003 | 1.7376 | 1.7379 | | | 199,300 | 1.7379 | 346,363 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 181.600 | -.0010 | 1.7376 | 1.7366 | | | 181,600 | 1.7366 | 315,367 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9839 | 493,450 | 1.5575 | 768,548 | |
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| 02-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9891 | 4,801,771 | 1.5527 | 7,455,710 | 1.6678 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,201.702 | 1.7661 | | 1.7661 | | | 10,201,702 | 1.7661 | 18,017,226 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 185.300 | .0015 | 1.7883 | 1.7898 | | | 185,300 | 1.7898 | 331,650 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 256.800 | -.0008 | 1.7883 | 1.7875 | | | 256,800 | 1.7875 | 459,030 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9891 | 493,450 | 1.5657 | 772,595 | |
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| 03-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9868 | 4,801,771 | 1.5491 | 7,438,423 | 1.6734 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 9,851.302 | 1.7786 | | 1.7786 | | | 9,851,302 | 1.7786 | 17,521,526 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 74.100 | .0029 | 1.8123 | 1.8152 | | | 74,100 | 1.8152 | 134,506 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 346.800 | -.0006 | 1.8123 | 1.8117 | | | 346,800 | 1.8117 | 628,298 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9868 | 493,450 | 1.5621 | 770,818 | |
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| 04-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9956 | 4,801,771 | 1.5629 | 7,504,688 | 1.6771 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,396.002 | 1.7720 | | 1.7720 | | | 10,396,002 | 1.7720 | 18,421,716 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 11.000 | .0000 | 1.8231 | 1.8231 | | | 11,000 | 1.8231 | 20,054 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 496.900 | .0001 | 1.7895 | 1.7896 | | | 496,900 | 1.7896 | 889,252 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9956 | 493,450 | 1.5760 | 777,677 | |
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| 05-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9956 | 4,801,771 | 1.5629 | 7,504,688 | 1.6779 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 9,685.802 | 1.7657 | | 1.7657 | | | 9,685,802 | 1.7657 | 17,102,221 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 123.500 | .0002 | 1.7379 | 1.7381 | | | 123,500 | 1.7381 | 214,655 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 496.900 | .0001 | 1.7895 | 1.7896 | | | 496,900 | 1.7896 | 889,252 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9956 | 493,450 | 1.5760 | 777,677 | |
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| 06-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9956 | 4,801,771 | 1.5629 | 7,504,688 | 1.6784 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 9,812.702 | 1.7647 | | 1.7647 | | | 9,812,702 | 1.7647 | 17,316,475 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 50.000 | .0000 | 1.6095 | 1.6095 | | | 50,000 | 1.6095 | 80,475 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 496.900 | .0001 | 1.7895 | 1.7896 | | | 496,900 | 1.7896 | 889,252 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9956 | 493,450 | 1.5760 | 777,677 | |
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| 07-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9935 | 4,801,771 | 1.5596 | 7,488,842 | 1.6780 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 9,682.102 | 1.7601 | | 1.7601 | | | 9,682,102 | 1.7601 | 17,041,468 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 205.000 | -.0002 | 1.7484 | 1.7482 | | | 205,000 | 1.7482 | 358,381 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 350.300 | -.0005 | 1.7484 | 1.7479 | | | 350,300 | 1.7479 | 612,289 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9935 | 493,450 | 1.5727 | 776,049 | |
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| 08-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9997 | 4,801,771 | 1.5693 | 7,535,419 | 1.6781 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,187.902 | 1.7576 | | 1.7576 | | | 10,187,902 | 1.7576 | 17,906,257 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 135.000 | -.0003 | 1.7167 | 1.7164 | | | 135,000 | 1.7164 | 231,714 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 350.300 | -.0005 | 1.7167 | 1.7162 | | | 350,300 | 1.7162 | 601,185 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9997 | 493,450 | 1.5825 | 780,885 | |
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| 09-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | 1.0015 | 4,801,771 | 1.5721 | 7,548,864 | 1.6799 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 9,662.102 | 1.7803 | | 1.7803 | | | 9,662,102 | 1.7803 | 17,201,440 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 234.700 | .0008 | 1.8794 | 1.8802 | | | 234,700 | 1.8802 | 441,283 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 350.300 | -.0005 | 1.8794 | 1.8789 | | | 350,300 | 1.8789 | 658,179 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | 1.0015 | 493,450 | 1.5853 | 782,266 | |
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| 10-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | 1.0017 | 4,801,771 | 1.5724 | 7,550,305 | 1.6837 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,180.202 | 1.8133 | | 1.8133 | | | 10,180,202 | 1.8133 | 18,459,760 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 217.300 | .0005 | 1.9016 | 1.9021 | | | 217,300 | 1.9021 | 413,326 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 350.300 | -.0005 | 1.9016 | 1.9011 | | | 350,300 | 1.9011 | 665,955 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | 1.0017 | 493,450 | 1.5856 | 782,414 | |
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| 11-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9968 | 4,801,771 | 1.5648 | 7,513,811 | 1.6874 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,336.102 | 1.8243 | | 1.8243 | | | 10,336,102 | 1.8243 | 18,856,151 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 129.600 | .0023 | 1.9832 | 1.9855 | | | 129,600 | 1.9855 | 257,321 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 495.600 | -.0003 | 1.9358 | 1.9355 | | | 495,600 | 1.9355 | 959,234 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9968 | 493,450 | 1.5779 | 778,615 | |
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| 12-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9968 | 4,801,771 | 1.5648 | 7,513,811 | 1.6901 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,136.402 | 1.8218 | | 1.8218 | | | 10,136,402 | 1.8218 | 18,466,497 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 131.300 | .0001 | 1.8153 | 1.8154 | | | 131,300 | 1.8154 | 238,362 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 495.600 | -.0003 | 1.9358 | 1.9355 | | | 495,600 | 1.9355 | 959,234 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9968 | 493,450 | 1.5779 | 778,615 | |
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| 13-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | .9968 | 4,801,771 | 1.5648 | 7,513,811 | 1.6926 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,514.602 | 1.8216 | | 1.8216 | | | 10,514,602 | 1.8216 | 19,153,399 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 100.000 | .0000 | 1.7855 | 1.7855 | | | 100,000 | 1.7855 | 178,550 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 495.600 | -.0003 | 1.9358 | 1.9355 | | | 495,600 | 1.9355 | 959,234 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | .9968 | 493,450 | 1.5779 | 778,615 | |
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| 14-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | 1.0019 | 4,801,771 | 1.5728 | 7,552,225 | 1.6946 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,378.402 | 1.8179 | | 1.8179 | | | 10,378,402 | 1.8179 | 18,866,897 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 289.100 | -.0012 | 1.8617 | 1.8605 | | | 289,100 | 1.8605 | 537,871 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 350.300 | -.0005 | 1.8617 | 1.8612 | | | 350,300 | 1.8612 | 651,978 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | 1.0019 | 493,450 | 1.5860 | 782,612 | |
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| 15-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | 1.0029 | 4,801,771 | 1.5743 | 7,559,428 | 1.6965 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 10,156.702 | 1.8229 | | 1.8229 | | | 10,156,702 | 1.8229 | 18,514,652 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 191.800 | .0002 | 1.9229 | 1.9231 | | | 191,800 | 1.9231 | 368,851 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 350.300 | -.0005 | 1.9229 | 1.9224 | | | 350,300 | 1.9224 | 673,417 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | 1.0029 | 493,450 | 1.5875 | 783,352 | |
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| 16-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | 1.0102 | 4,801,771 | 1.5858 | 7,614,648 | 1.6995 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 9,968.202 | 1.8474 | | 1.8474 | | | 9,968,202 | 1.8474 | 18,415,256 | |
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| Receipt | NGX Phys, ID, 2a (CA/GJ), AB-NIT | 199.700 | .0032 | 2.0862 | 2.0894 | | | 199,700 | 2.0894 | 417,253 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 350.300 | -.0005 | 2.0862 | 2.0857 | | | 350,300 | 2.0857 | 730,621 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | 1.0102 | 493,450 | 1.5991 | 789,076 | |
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| 17-MAY-12 | Receipt | NGX Phys, BS, LD1 (US/MM), AB-NIT | 4,551.200 | -.3798 | 2.0360 | 1.6562 | 1.055056 | 1.0102 | 4,801,771 | 1.5858 | 7,614,648 | 1.7005 |
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| Receipt | NGX Phys, FP (CA/GJ), AB-NIT | 8,246.202 | 1.8295 | | 1.8295 | | | 8,246,202 | 1.8295 | 15,086,427 | |
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| Receipt | NGX Phys, ID, 5a (CA/GJ), AB-NIT | 350.300 | -.0005 | 2.0862 | 2.0857 | | | 350,300 | 2.0857 | 730,621 | |
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| Receipt | NGX Phys, ID, 7a (CA/GJ), AB-NIT | 2,055.000 | -.0030 | 1.5586 | 1.5556 | | | 2,055,000 | 1.5556 | 3,196,758 | |
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| Receipt | NGX Phys, ID, 7a (US/MM), AB-NIT | 467.700 | -.0013 | 1.6714 | 1.6701 | 1.055056 | 1.0102 | 493,450 | 1.5991 | 789,076 | |
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