All sorts of dumbness is going on when I've watched the freighters in this game. For example there are two Iridium sources within a sector of my homeworld. There were none at game start but basically they have been keeping pace, or even increasing the homeworld stores a bit. Back to 1500 was down to 1000 before the first source kicked in. Between them, when I looked about the time of these pictures, they had 2500 unreserved. But a freighter just decided to get Iridium from the Boskar homeworld. The mines have been operating for much longer than I have known about the Boskara, let alone where their homeworld is. Can't make any sense of that one, for example.
Another great one is that I developed a Wiconium source early on, about half a sector southwest of my homeworld within its influence circle. There was at the time of the pictures over 2000 unreserved units there. My homeworld has been demanding it all game (hence why I built the mine) but has not received a single unit. But three freighters had just decided to get Wiconium from the Wekkarus, their mine being on the western edge of their influence circle.
(I have played on a little bit and 1000 of the Wiconium from my source has just been reserved so I guess that's something...)
I have been a bit tight on variety. Currently I have 11 luxuries plus 2 ultra-rares available. The ultra-rares are quite new only about 100 Loros and 650 Zentabia mined. You've heard a bit about the Zentabia... currently two freighters going there but their reservations were cleared a week or two after they were made. Sure they will still pick up, in fact if it remains at 2 it will work nicely since it is a decent trip but it worked like this - first freighter reserves 400 then a week later no reservations showing again... maybe two weeks later the second freighter reserves 450-500 but most of this is the same stock!... a couple of weeks later no reservations are showing apart from 10 for local population... all will be good this time since there may well be 800-900 by the time they get there and they will each get a good load but if a few more freighters had reserved in the following couple of months, well, maybe we would have something like in the pictures (assuming independent freighters or another empire cleaned out the terralion source before I got there).
I've got a fleet on the way to conquer the independent giving the troublesome supply (bloody Naxxilians - never trust a dinosaur with a comlink [:D]). They also have Jakanta which a lot of my colonies are demanding but no freighters are going to collect it. And I've a colony ship on the way to an Ekarus source which I don't have yet. Three luxuries (Caguar, Dantha, Bifurian) I have not yet found anywhere. There is one source of Yarras up on the northern edge of the map above my most eastern colony on a colonisable world. It's protected by pirates so I doubt that the Wekkarus will get it. But first I'm intent on snatching a 600+ million Wekkarus independent out from under their, um, err, noses? It's between the Yarras and that eastern colony. I found a good source of Nepyths somewhere but no one is demanding it and I have not had a constructor handy to develop it. There are a couple of low quality sources of Aquasian in out of the way troublesome locations. One of my miners is onto one but it's low down on my priorities.
So that's the situation, not great but far from terrible. My constructors are all building fuel (surprise, surprise) and I've finally discovered a decent (i.e. greater than scientist bonus) location for weapons research. And if I get one free I'll be building steel before luxuries. I'm already swimming in money (built Bakuras and Rusan is 1/3 of the way at my homeworld) but finding the steel to load my constructors with is currently a massive problem.
. Of course, freighters can always travel to the mines to refuel... 
, Terraliion was not. I'm pretty sure it appeared later and is lower down on the list (in default order of appearance). Will check tomorrow just in case I have it wrong.
