I’ve noticed that the basic maximum of oil that can be stolen from your refinery has been increased from 5k to 7,5k. I don’t know if that affects only SA or the other ages also.
If it were the case then low ages wouldn’t complain so much about stealing oil. Back to those days I remember raiders taking 4-5k of my oil. But I’m not sure, maybe someone from atomic age can tell the current refinery stealing limits.