The two big things for me are minerals and fuel.
I want to know total empire mining output compared to current usage, projected usage (based on build queues), and theoretical usage (based on max production from all naval shipyards).
For each of those lenses, I want to know which minerals are currently underproduced, and how much my present stockpile could make up for the shortage.
I also want to compare current fuel usage and projected fuel usage (based on current freighters and colonists in production, and assuming that freighter and colony ships currently in motion will remain in motion) to current fuel production and projected fuel production (based on currently queued refineries and sorium harvesters), and also harvesters currently en route.
And I want to see location and size of fuel stocks, location and production rate of fuel harvesting and refining, and throughput of all mule routes.