Examining the doors in the facility hallway reveals that the aliens travel through here often - and they probably bring useful materials with them. Let's create some mischief.

The plastic barrel in the middle of the room is probably full of slippery stuff - we just need to get it open.

You'll need something sharp - and this hallway is pretty barren.

From the duct junction, move to the far right to enter the crystals room.

Continue through the vents to the duct's end, where a dead prisoner holds something useful.

True, he's got electricity arcing through his body.

Use the rubber-coated oven mitt on the prisoner to search him, revealing a wine cork.

You can use this to pierce the barrel.

When the scientist slipped, he dropped a vial of Substance F on the floor - exactly what we need.

Next up: the oil.