In a fuel business, inventory comes in two flavors with funny names: wet and dry. Wet stock is the fuel in the tanks. Dry stock is everything else, the snacks, drinks, and packaged goods on the shelves inside. It is a small piece of jargon worth knowing, because the dry side carries a lot of the profit.
What it is
Dry stock is the non-fuel merchandise a convenience store sells: snacks, drinks, tobacco, packaged goods, everything inside. The name pairs with wet stock, the fuel. Dry stock is the inside-store inventory, and it is where a large share of a c-store's profit sits.
Dry stock vs wet stock
The two are tracked completely differently. Wet stock is fuel, measured in gallons and reconciled through wet stock reconciliation against pump sales. Dry stock is counted as items and managed through the pricebook. Both are inventory, but one is reconciled in gallons against meter readings and the other in items against physical counts.
Why it matters
Because the inside store earns most of the profit. NACS data for 2025 puts fuel at 65 percent of industry sales but under 39 percent of gross profit dollars; the inside store delivered the other 61 percent on roughly a third of the sales. Managing dry stock well is where that money is made: keep winners stocked, cut dead items, and price right. The margin numbers break this down further.
How it is managed
Through a clean item-level pricebook, sensible par levels, regular counts, and category management, so the right items are on the shelf at the right cost without dead stock tying up cash. It is ordinary inventory discipline applied to the thousands of items a store carries, and at that item count the discipline only holds with software: FastDragon C-store ties the pricebook, item-level margin, and dead-stock flags to the POS.
Questions we hear a lot
Does dry stock include foodservice?
Usage varies by store, but most operators treat made-to-order food and coffee as a separate foodservice category with its own ingredient-level tracking, and reserve dry stock for packaged merchandise. The split matters because foodservice carries different margins, waste, and labor than anything on a shelf.
What is shrink in dry stock?
Shrink is merchandise the book says you own and the shelf cannot produce: theft, damage, out-of-date product, and receiving errors. It surfaces when a physical count comes in under the book inventory, and tobacco and beer are usually the first categories to check.
How often should a c-store count dry stock?
Many stores count tobacco daily because it is the highest-value, highest-theft category, run weekly cycle counts on other risky categories, and do a full store count monthly or quarterly. The tighter the counting rhythm, the sooner a shrink problem shows up as a pattern instead of a year-end surprise.
What is a par level?
A par level is the shelf quantity you restock to for each item, set from how fast it sells between deliveries. Set it too low and a winner sells out midweek; set it too high and slow items tie up cash and shelf space. Reviewing pars against item-level sales a few times a year keeps them honest.