Ok, so I have a player who’s character wants to starting purchasing military oil in bulk from a merchant in the town we’ve established as the home base.

This is the first sort of “large scale” mercantile venture. I’m a little confused how to establish the price of a crate of military oil (this doesn’t seem to be on the “common merchandise” table, unlike regular oil). Can someone walk me through the steps to determine this cost?

Which rules do I need to be looking at?

Also, how do I determine how much oil is actually in a load? For example, Lamp Oil is 5 jars for a load for 100gp base price. Assuming we roll 100% for the modifier to price to keep it at 100gp. How many flasks of oil is actually in 5 “jars”? Do I divide the final cost by the standard cost (3sp per flask) to determine that? Or, is this supposed to be just an abstract “unit” of bulk merchandise used for trading? If so, what if my players want to buy one of those units and break it down into individual objects (as is the case of my player who wants to buy a load of military oil and break it down to flasks)?

Any help would be appreciated.

Duskreign’s Minion here.

I have spent some quality time with the merchantile ventures part of ACKS so I will see what an can do.

I’m not sure if military oil is intended to be sold in bulk, but each campaign will be different.

Start at the equipment section. 1 unit of oil is 1 pint and 3sp.

As a small item, 6 pints of oil would equal 1 stone and cost 18sp (1.8gp). These rules are in the encumbrance section.

The Merchandise Tables lists oil as being 5 jars and 30 stone. Thus each jar is 6 stone, or 36 pints of oil.

36 pints x 5 jars = 180 pints of oil

180 pints x 3sp = 540sp or 54gp

And…well…I’m confused now as well. It does look as though the trade vales are not interchangeable with equipment values. Military oil is 6.66 x more expensive than common oil. Perhaps make 1 load cost 600-700gp and 30 stone. That would put it in the precious merchandise range. I would follow the rules for a normal Merchantile Venture, and disallow “retailing” the oil.

Hope that helps a little.

First, keep in mind that the stone is an abstract unit that includes some elements of bulk as well as weight. A stone generally runs between 8 and 14 pounds, with an average of 10 pounds per stone.

1 pint weighs 1 pound. So there are 8-14 pints in each stone. A default is 10lbs per stone.

A pint of oil costs 3sp. That puts the price at between 8x3=24sp and 14x3=42sp, with an average of 10x3=30sp. There are 30 stones in a load of oil. So that means the price should be between 24x30=720sp and 42*30=1,260sp. At 10 lbs per stone, that’s 30x30=900sp. The Merchandise Table puts the price at 100gp, i.e. 1,000sp. So that’s very close.

A better way to calculate this: We know that 1 pint is 1 pound. We know that 1 pound of oil costs 3sp. We know that the value of the load of oil is 100gp. So therefore we know that there are (100gp/3sp)=(1000/3)=333 pounds of oil in a load.

Since we know that a load of oil is 30 stones, and we know it’s 333 pounds, then we know that there are exactly 11.1 pounds of oil per stone of oil.

If you want to have a merchandise load of military oil, then, you could take the price of military oil and multiply it by 333 to get a 30 stone load.

Note that the Encumbrance rules are designed to represent the encumbrance load of equipment, not of cargo. Put 6 vials of oil on your person, ready to use or throw; that’s a certain level of bulk. Put 6 vials of oil in a padded box. That’s a different level of bulk. You shouldn’t necessarily use the abstract 1/6 rule if you’re trying to work out the exact mathematics of how many items of a known weight are in a crate, for instance.

This helps a lot! These detailed answers are very much appreciated.