When you mouseover the Burner Mining Drill it displays the amount of ore in its mining zone, but it does not display the amount of fuel that has been inserted into its fuel storage. This is the data displayed at the bottom of the pop-up window directly below the minimap when you put the cursor over the drill. All other structures that need fuel display the amount of fuel currently installed when you do this, as well as any input or output items it contains (e.g., the Stone Furnace lists fuel and whatever item is being cooked, in addition to any output products not yet removed).
I do not know if this happened in 0.14.x, but it has been this way in every version of 0.15.x I have played (to include 0.15.9, as I just verified it is still there).
This is, of course, a minor bug, but I wanted to report it since every other fueled item I've checked displays the fuel it contains.
Thank you.
Burner Mining Drill fuel not displayed on mouseover
Re: Burner Mining Drill fuel not displayed on mouseover
Thanks for noticing. I've fixed it for the next version of 0.15.
If you want to get ahold of me I'm almost always on Discord.