As an experiment, I haven't been tracking time and lantern oil quite as strictly on the current Adventure. Does anyone find themselves missing that detailed level of resource management?
It was fun to practice by-the-book time/resource management for the first few Adventures (with the strictly enforced rest turns and what not) to give the game a survival horror element. But looking back, at no point was your party ever in danger of running out the clock and exhausting your resources. The average duration of your Delves has been 24 turns (4 hours) which is the exact burn time of 1 flask of oil. A flask of oil costs only 2gp, an insignificant expense at the party's current level of wealth. (Torches are even cheaper, 6 hours for 1gp.) I figure, the party is suitably Heroic at this point, we don't need to stress about it.
From a game design point of view, it's fun to imagine a system where each character starts with a standard kit, and instead of equipping each character up front, you pay on the way out of the dungeon for the resources your character actually consumed. We're not going to do that, but I could see it working really well for a quick one-shot game.