Ah, I see it’s also cropped up in the bug thread with coal overlapping rubyte. For now I fixed it by using a map gen settings change mod to double oil frequency, so I get twice as many oil patches, half of which are covered by jivolite, so it winds up being equivalent to normal frequency. Had to ...

Got to the point of setting up oil/gas in my 0.17 angel/bob game. Found several gas patches but no oil. Eventually I found 1 oil field, and wondered if I'd mucked up my map gen settings. Here's what I found when I generated a few new ones with default settings:
jivoil.png

Arrowed are all the ...

Starting on a 0.17 full Angel+Bob game, and put my tech price multiplier up to 10 to avoid the common scenario where I research stuff way faster than I can use it, and where almost all the late game research topics all complete in a few seconds.

Then I come to setting up the arboretums and farming ...