Goblin Omelette

Goblin Omelette is a drill upgrade module costing 99 Goblin eggs that generates 1 fuel every 20 seconds.

The craft in unlocked in The forge upon reaching HotM tier 4.

It takes 1100 hours to refund the cost of creating this upgrade, making it a very ineffective upgrade. (3 fuel per minute -> 180 fuel per hour. 99 Goblin eggs x 2000 fuel each = 198 000 total fuel. 198 000 fuel / 180 = 1100 hours)

On top of that, there is currently a bug where if you are mining a block while gaining a fuel, it resets the block breaking, making it even less useful, and even harmful to the productivity of each drill.