RE:Mark to marketMark to market is GAAP and IFRS compliant financial reporting, unless a company chooses to utilize specific Hedge Accounting rules, which are gruesomely tiresome to track, so almost no non financial entity does.
VET does not have a choice in the matter, and if prices fall from Q3 to Q4, VET will have a huge "gain" on the MTM value swinging back the other way.
Every commodity producer will have it in some shape or form, depending on how long their hedges extend and what price they were entered into vs. the End of Quarter Market Prices.