
Production from scratch
Heavy Oil
One batch means one cycle of the selected recipe, one factory crate or one complete selected MPF order. Travel and queue waits are excluded.
Crafting time only
Crafting time: 1 min 45 sec
Sum of production cycles performed sequentially. Excludes harvesting, travel, queues and loading. Independent stages can run in parallel.
Follow the steps from top to bottom: raw materials, intermediates, then the final item. Skip preparation for resources you already have.
Output
30 units / resource units — Heavy Oil
Assumes existing facilities with required upgrades. Infrastructure construction, transport and generator fuel are excluded. Check unlocked technology, station access and power. One route is selected; it is not necessarily the cheapest.
- 1Craft / upgrade
Oil

Bring the listed resources to Oil Well. Open the building interface, select this recipe and start production. Check the required upgrade and power supply; then collect the output.
Result: 50 L Oil
Time per cycle: 50 seconds Queues and travel take additional time.
Recipe and source on the wiki ↗ - 2Craft / upgrade
Heavy Oil

Bring the listed resources to Oil Refinery · Cracking Unit. Open the building interface, select this recipe and start production. Check the required upgrade and power supply; then collect the output.
Bring to this step
50 L OilResult: 30 L Heavy Oil
Power required: 1.5 MW. This is power, not resource consumption.
Time per cycle: 55 seconds Queues and travel take additional time.
Recipe and source on the wiki ↗
If the output is a crate, deliver it to a base and submit it to unpack individual items. For further production, materials must be in the form accepted by the recipe.
Where to deliver finished crates
Submit to a base — unpack for players
Drive to the base and open its menu with E, right-click the crate in your inventory and choose Submit to Stockpile. For all crates, use Submit All to Stockpile. The crates unpack and their contents enter the base’s public stockpile.
Store at a depot or seaport
In Storage Depot or Seaport crates remain packed. For Legion supplies, open the correct Reserve Stockpile using its code. Before submitting, make sure you selected it rather than the public stockpile. Only crates marked Reservable may enter a reserve: check the item tooltip. Reserves expire, so monitor and refresh their timers.
Submitting to public stock irreversibly removes reservability. The crate becomes public. You can retrieve it, but cannot put it in a private stockpile again, even at another depot. Check the selected stockpile before submitting.
Sources: submitting to bases, crates, reservability. Vehicle crates use separate unpacking rules; the instructions above concern item crates.
Recipes and images: Foxhole Wiki. Wiki — CC BY-NC-SA 4.0; game images belong to Siege Camp. Game updates may change these data.

