https://www.dropbox.com/s/769yrfmawodnj ... 20test.png
if you have space this can easily be spread out a fair bit as in pic 2
https://www.dropbox.com/s/ip0xg2aipaof9 ... Spread.png
but i'm less fond of that, i prefer to just build t in a block and if i need more i'll just add more refineries going down
edit: image link hates me
