As of the Auditor General's 2025-12-11 assessment, the asset safety factor deposit in Alberta's oil sands mine reclamation security program had never been triggered since 2011, the department had never evaluated the test, and a 2015 recommendation on valuing mine assets was not implemented

What is happening?

Alberta requires oil sands mine operators to post financial security against the cost of closing and reclaiming their mines, through the Mine Financial Security Program, which began in 2011. The program does not ask for security equal to the full reclamation cost. The Office of the Auditor General of Alberta describes it as an asset-to-liability approach rather than a full security approach, under which Albertans bear some risk that reclamation will not be completed by the operators.

Above a base deposit there are three further deposits. One is owed as reserve life runs short, one when reclamation falls behind plan, and the test that decides whether more security is owed compares the value an operator places on its mine assets with its reported reclamation liability. If assets fall below three times liabilities, an asset safety factor deposit is due. The asset value comes from a formula applied to the operator's own reserves, prices and netbacks.

On 2025-12-11 the Office of the Auditor General of Alberta published an assessment of how its July 2015 recommendations had been implemented. It found that since the program began in 2011 the asset safety factor deposit had never been triggered, that the department had never evaluated the asset safety factor despite planning to do so in its 2022–2023 program review, and that the 2015 recommendation to assess whether the asset calculation needed changes to prevent overstatement was not implemented. The Auditor General judged the risk of overstatement to remain high.

As of September 2025 the government held $1.8 billion in security for oil sands mines against an estimated reclamation liability of $51.9 billion, reported by the operators. Those two figures are not a shortfall under the rules of this program, which by design does not require full security; they are the scale against which the asset test is supposed to decide whether more is owed.

Whose problem is this?

The body that sets the valuation rule is the same body the Auditor General has asked, since 2015, to test whether that rule overstates assets. The body that collects the money applies the rule it is given.

Where does this problem end?

The boundary matters because the numbers invite the wrong reading. A gap between security held and liability reported is what this program is built to have, and the question the Auditor General keeps asking is narrower and harder: whether the test that is supposed to close that gap when it becomes dangerous can ever fire.

What is the state now, and what should it be?

Now

What it should be, by the rules of the program itself

• Objective — operators, not Albertans, bear the cost of closure and reclamation if an operator cannot meet its obligations, as stated by the Auditor General and in the program manual.
• Rule — if assets divided by liabilities fall below 3.00, an asset safety factor deposit is owed.
• Rule — when remaining reserve life falls below 15 years an operating life deposit begins, and at six years remaining the liability is fully secured.
• Rule — an outstanding reclamation deposit is owed when an operator falls behind its reclamation plan.
• Rule — section 18(1.1) of the Conservation and Reclamation Regulation provides that security for a mine approval shall be in an amount determined in accordance with the Standard, and section 20(1) that it shall be adjusted in accordance with the Standard.
• Oversight — the 2015 recommendation asked the department to assess whether changes to the asset calculation were needed to prevent assets from being overstated. The Auditor General treats that assessment, not any particular security level, as the missing step.

How big is it?

The size of this problem is measured in dollars of public risk, not in a counted group of people. As of September 2025 the government held $1.8 billion for oil sands mines against a reported liability of $51.9 billion, in a program that uses an asset-to-liability approach rather than full security. The liability is the estimate of the operators themselves under the program definition, verified by the regulator, and is neither inflated nor discounted.

Over a decade the reported liability has grown much faster than the security held. The regulator series below combines oil sands and coal, and coal is fully secured, so it mixes two regimes and should be read for direction only.

Most of the 2025 rise in security is the single operating life deposit of $869 million, which matches the change in oil sands security between September 2024 and September 2025. The regulator explains the 2015 fall as one approval holder qualifying to use a deemed netback and moving from full security to the base deposit. The seven oil sands mines are expected to end mining between 2033 and 2095, according to the Auditor General.

Under what conditions does it arise?

1. Security depends on a valuation, not on the cost. Beyond the base deposit, whether more security is owed is decided by asset value divided by liability, and asset value is computed from proved plus probable reserves, a three year average netback and a futures price factor.

2. The formula has no discount rate. The Auditor General found in its 2025-12-11 assessment that the calculation treats a dollar received far in the future as worth the same as a dollar today, while oil sands mines can operate for up to 50 years and the price factor reflects only three years of short term risk.

3. Development costs are left out of the asset value. The department explained that it excluded them to manage year to year swings in the safety factor. The Auditor General wrote that this approach does not produce a reasonable or fair asset valuation and that no analysis was provided to support the claims of the department.

4. Probable reserves can still count like proved ones. An October 2024 amendment reduced this risk, the Auditor General found, but did not remove the possibility.

5. Every published ratio sits above the line. The published safety factors across approvals ranged from 3.68 to 61.8 in the 2024 reporting year, all above the 3.00 line, and those values are themselves outputs of the formula the Auditor General considers at high risk of overstatement.

6. Per-operator inputs are not public. The program publishes safety factors by approval and sector totals, not the underlying asset and liability values, so no outside party can recompute the test.

When the value of future production is not discounted and its costs are partly left out, a test built on that value can pass year after year while the liability it guards keeps rising.

What has been tried?

The recommendation has now outlived the program review it was supposed to feed, and the amendment that eventually came was, in the words of the Auditor General, only a minimal adjustment to the risks identified in 2015.

What was found?

Why is it still unsolved?

Cost structure — the reclamation obligation of a mine is certain and arrives last, while the security that guards it is priced from the mine's future earnings, and the formula that prices those earnings has not been tested against the risk it is meant to measure.

A full security program would ask for money in proportion to the cost. This program asks for money in proportion to how weak the operator looks, and it measures weakness with a ratio of asset value to liability. Until a mine nears the end of its reserve life or falls behind its reclamation plan, that design leaves the protection to the asset formula. If the formula runs high, the ratio stays above three, no asset safety factor deposit is owed, and the risk stays with the public without any event marking the moment it began to do so.

The Auditor General identified three reasons the formula may run high: it does not discount revenue that may arrive decades away, it leaves out development costs, and it may still count probable reserves like proved ones. The department has stated that the method and values are reasonable and that the program functions as intended, and that it will make no further substantive changes to the calculation method; the Auditor General reported on 2025-12-11 that it found no evidence supporting those claims.

The pattern is stable because a test that never fires looks the same as a test that is never needed. Security grows only when mines approach the end of their reserve life, and until then the published ratios sit above the line, computed by the formula whose accuracy is the open question.

What observation would mean it is solved?

Candidates — (a) a later assessment by the Office of the Auditor General of Alberta rates the 2015 asset calculation recommendation as implemented (b) the department publishes an evaluation of the asset safety factor with performance measures, as it planned for the 2022–2023 review (c) the published asset values and safety factors can be checked against an independent valuation that accounts for timing and development costs.

(a) alone is weaker than it looks. An implementation rating says the department has done the assessment the Auditor General asked for, not that the resulting security is adequate; a finding that no change is needed would also count.

(b) alone can be circular. An evaluation that uses the same valuation formula to judge the safety factor would test the formula against itself.

(c) alone is not available by design. The program does not publish the per-operator asset and liability values, so an outside check needs a disclosure the program does not currently make. The three have to be read together, and none of them is a statement about how much security operators should post.

What is it connected to?

What these sources do not say

• Whether assets are in fact overstated, and by how much. The Auditor General found a high risk of overstatement. No source opened here gives an independent estimate of the real asset values.
• Why the department kept deferring a decision. The sources carry only the reasons the department stated — in 2021-04, that the program is linked to other government policy work and it wanted to understand the effect on operators, and in 2025, that including development costs would increase year to year volatility in the safety factor. No source gives any other reason.
• How reliable the liability figures are. They are operator estimates under the program definition, verified by the regulator. No source opened here compares them with an independent cost estimate.
• Per-operator asset and liability values. These are not published under the program rules; only safety factors by approval and sector totals are. This is a disclosure choice of the program, not a gap in the record.
• Legislative follow-up. No source opened here reports a legislative committee review of the 2025 assessment.
• Which jurisdictions use full security. A footnote in the 2021 progress report says a number of jurisdictions use a full security approach and names none.
• Operator default. No source opened here addresses whether any oil sands mine operator has become unable to meet its obligations, so this document does not say the risk has or has not materialised.
• Any 2026 change. The report list of the Auditor General shows no 2026 follow-up, and no source opened here confirms whether the program was amended in 2026.
• The regulator response. No separate public statement from the Alberta Energy Regulator on the 2025 assessment appears in the sources opened here.
• The positions of the government, found. The department position that the method is reasonable and the program works as intended is recorded in the 2025-12-11 assessment, beside the Auditor General finding that no evidence supported it. The office of the environment minister, as reported by a national newspaper, called the recommendation flawed and the program stronger than ever; other sentences attributed to it in summaries of that report could not be read in the original and are not used here.
• The Standard itself. The Mine Financial Security Program Standard that the regulation adopts by reference could not be retrieved, so its text is described here only through the regulation, the manual and the Auditor General.

See the evidence

The core of this document rests on primary public records read directly — the 2025-12-11 assessment and the 2021-06 progress report of the Office of the Auditor General of Alberta, the two regulator data files, the program manual and the unofficial consolidation of the regulation. The only statement from the government that does not come through those records is the reaction of the office of the environment minister, taken from a newspaper and graded medium. Where the Auditor General and the regulator overlap they agree: the regulator combined liability of $52.7 billion equals the $51.9 billion for oil sands plus $0.8 billion for coal given by the Auditor General, and the one year rise in oil sands security matches the $869 million operating life deposit. The Auditor General counts seven oil sands mines and the regulator lists seven approvals, one of which covers two mine sites; this document uses the Auditor General unit. This is a Path A output (research-based definition), so observation_refs is empty and provenance_mode: press-derived.

People affected

Estimated range Not derivable

The reason and what is missing are listed under “What is missing” below