The federal government's campaign commitment was specifically limited to restricting the use by companies, oil and gas companies, for what are called Canadian exploration expenses. It was specifically limiting them to only be able to deduct them when they have an unsuccessful exploration.
But that's just one side of the coin of what you just raised. The other element is something similar to a flow-through share. When companies claim this Canadian exploration expense, it often gets flowed through to individual investors. This is part of a major theme of Canadian tax policy, which is what we have to think about when it comes to what to do when companies take on a risky endeavour. A company that takes on a risky endeavour should in many ways have that risk reflected in their taxes due.
Just touching one part of the equation, the Canadian exploration expenses, has a major flow-through effect, so to speak, on many other parts of the tax system, including what you just raised on the mineral exploration tax credit.