GLJ Petroleum Consultants Ltd., independent reserve evaluators, completed an evaluation of 100% of Compton’s petroleum and natural gas reserves as at December 31, 2010 in accordance with the provisions of National Instrument 51-101. As required by National Instrument 51-101, Compton filed Form 51-101 F1 as part of its Annual Information Form (“AIF”). The AIF is considered comprehensive. Certain information has been summarized below regarding the Corporation’s operations. Compton’s extended disclosure contained in the AIF is available on both the SEDAR website and Compton’s website.
Reserves have been reduced largely due to the impact of an updated technical interpretation of reserves by GLJ, the economic impact of lowered price forecasts, and dispositions. The updated technical interpretation by GLJ and low natural gas prices has resulted in significant reserve reductions. Higher natural gas prices, increases in cash flow and further development would be expected to provide positive revisions to Compton’s reserves.
Net Asset Value
Net asset value was $0.99 per basic common share on a proved basis and $1.62 per basic common share on a proved plus probable basis based on the independently estimated reserve value (discounted at 10% before tax), independently estimated undeveloped land value, outstanding debt as of December 31, 2010 and the number of outstanding shares at that time.
2010 Year End Reserves
Summary of Estimated Reserve Volumes - Company Working Interest |
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| 2010 | 2009 | |||||||||||||
| Oil | Nat. Gas | NGL | Total | Proved | Total | Proved | ||||||||
| December 31 | (MBbl) | (MMcf) | (MBbl) | (MBoe) | % | (MBoe) | % | |||||||
| Proved Producing Non-Producing Undeveloped |
1,523 252 212 |
224,957 13,884 59,115 |
3,755 221 1,451 |
42,771 2,787 11,516 |
75% 5% 20% |
74,603 6,403 16,796 |
76% 7% 17% |
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| Total Proved Probable |
1,988 631 |
297,957 140,316 |
5,427 2,587 |
57,074 26,604 |
100% | 95,802 65,713 |
100% | |||||||
| Total Proved + Probable | 2,619 | 438,273 | 8,014 | 83,678 | 161,515 | |||||||||
(1) Forecast prices and costs; numbers may not add due to rounding.
(2) 2009 opening balances have been restated to exclude sulphur.
- Proved reserves are comprised of 87% natural gas and 13% liquids
- Proved producing reserves comprise 75% of total proved reserves
- Total proved reserves account for 69% of the proved plus probable reserves
- Total proved RLI of 10.6 years and a proved plus probable RLI of 15.5 years, based on production of approximately 14,800 boe/d
- Primary factors that impacted reserves are the updated interpretation of reserves by GLJ, the economic impact of lowered price forecasts, and dispositions
Net Present Value |
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| 2010 Discount Rate |
2009 Discount Rate |
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| December 31 ($000s) | 0% | 10% | 15% | 10% | |||||
| Proved Producing Non-producing Undeveloped |
$ |
1,073,033 55,190 211,077 |
$ |
492,161 27,536 65,832 |
$ |
394,387 21,218 38,099 |
$ |
915,989 86,224 125,285 |
|
| Total proved | $ | 1,339,300 | 585,530 | 453,704 | 1,127,499 | ||||
| Probable | 682,290 | 165,853 | 102,438 | 567,018 | |||||
| Total Proved + Probable | $ | 2,021,590 | $ | 751,382 | $ | 556,142 | 1,694,516 | ||
(1) Forecast prices and costs; future net revenue before income taxes; numbers may not add due to rounding.
The main contributors to the change in valuation were:
- The change in the commodity price deck:
- This forms the majority of the revision: if the 2010 year-end reserves were evaluated using the January 1, 2010 commodity price deck, the value reduction would be 28% for proved and 38% for proved plus probable reserves as compared to the reported 48% and 56% respectively
- The effect of the updated technical interpretation
- The impact of dispositions
Compton expects an increase in the valuation of its reserves with improvements in commodity prices, additional cash flow and further development. Price forecasts as of December 31, 2010 used in the above evaluation are GLJ’s January 1, 2011 price deck, which is significantly lower than those used in 2009.
Reserve Reconciliation - Company Working Interest |
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| Oil & NGLs | Natural Gas | Total | ||||||||
| December 31 | Proved (MBbls) |
Probable (MBbls) |
Proved (Bcf) |
Probable (Bcf)) |
Proved (Mboe) |
Probable (Mboe)) |
Proved + Probable (Mboe) |
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| 2009 Extensions & Improved Recovery Technical revisions Discoveries Acquisitions Dispositions Economic Production |
13,045 622 (2,444) - - (2,378) (482) (949) |
8,982 (226) (3,545) - - (1,972) (21) - |
497 21 (105) - - (45) (38) (32) |
340 (10) (165) - - (27) 3 - |
95,802 4,066 (19,933) - - (9,827) (6,753) (6,281) |
65,713 (1,974) (31,058) - - (6,464) (387) - |
161,515 2,092 (50,991) - - (16,291) (6,366) (6,281) |
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| 2010 | 7,415 | 3,218 | 298 | 140 | 57,074 | 26,604 | 83,678 | |||
(1) Forecast prices and costs; numbers may not add due to rounding.
(2) 2009 opening balances have been restated to exclude sulphur.
- Negative revisions due to economic factors identify previously booked reserves that are uneconomic based on current price forecasts, and are quantified as approximately 7% of the total proved reserves (6,753 Mboe) and 4% of the total proved plus probable reserves (6,366 Mboe)
- Technical revisions include changes related to potentially recoverable volumes associated with future development projects, which are now marginal based on the current gas price outlook and which Compton currently has no firm development commitment. These volumes are now classified as contingent resources rather than undeveloped reserves pending improvement in gas prices.

