Indeed, that’s why I assumed that the pyramid is a storage site, not a dump site; and would be gradually sold off if the oil extraction operations stopped or slowed. It’s a huge volume commodity; but it’s heavy and bulky enough that shipping is a serious factor; plus a mountain of it like that would probably depress market prices within shipping range if you tried to get rid of it all at once.
With tar sand extraction up and running, they produce more sulfur than they can sell, hence the pyramid; but they can sell a nonzero amount of sulfur, so if their oil were priced out of the market they’d presumably start running a sulfur deficit until the pyramid was gone. What I can’t find any info on is how fast they are able to sell the stuff; and what the elasticity of their oil production looks like as a function of price(and thus, indirectly, how their sulfur production varies by oil price)…
