Changes
+ Oil base chance changed from 5% to be based on biomes
+ Hotter biomes have a higher chance of having oil chunks.
+ Deep ocean biomes have a 11% chance of having an oil chunk.

Notes
This update changes how oil is found. You can find oil anywhere that isnt cold. So if your in a very cold area like ice spikes you will never find oil. However in the desert you have a 4% chance of a chunk being an oil chunk. This is a change to prepare for some of the bigger additions / changes coming. Soon resource chunks like copper, iron & gold will be added. They will be found similar to oil chunks. However since these resources spawn in specific areas across the world players will need to transport said items across the world in order to utilize them. This means that long range transport will be needed. This transport will obviously be trains!