Solid Petroleum

Solid Petroleum is an in-game element that represents petroleum in a solidified state. It behaves differently from its liquid counterpart and is subject to mechanical stresses and temperature-related edge cases that can significantly affect its stored mass. Solid Petroleum appears when Petroleum transitions to a frozen state under low temperatures and interacts with surrounding Petroleum and pressure in ways that can cause sudden mass loss.

Solid Petroleum can only withstand roughly 765 kg of overlying pressure. If Solid Petroleum forms beneath four tiles of Petroleum, the resulting overpressure will cause it to fracture; when this overpressure fracture occurs the Solid Petroleum’s mass is halved. Prolonged cold conditions that repeatedly freeze petroleum can therefore lead to large, seemingly spontaneous losses of Petroleum mass as freeze–fracture events accumulate.

• Solid Petroleum is produced when Petroleum freezes; it is not a separate crafting resource but a state of the Petroleum element.
• The critical overpressure condition is formation under four tiles of Petroleum; this specific configuration triggers the fracture-and-mass-halving behavior.
• Repeated or sustained low temperatures that keep converting Petroleum to Solid Petroleum can cascade into major mass loss due to multiple fracture events.
• Treat storage and layering of Petroleum carefully in cold areas: avoid scenarios where Petroleum repeatedly freezes beneath thick layers of liquid Petroleum to prevent unexpected disappearance of mass.

There are no additional mechanical behaviors recorded in the provided sources beyond the pressure tolerance and the fracture/mass-loss interactions tied to freezing beneath multiple Petroleum tiles.