Okay, I've found eight total now. I noticed the pattern in their placements: 1 for each of the stations bordering the fence. For the ones directly north, east, etc., you go just past them (roughly halfway in between the station and the fence). For the corner ones, you go between the two stations that are closest to that corner (for example, the one between Papa and Victor). Those are always slightly closer to the station furthest away from the base.
It's worth noting that the candles do go out eventually. I relit the two of them that I was sure had gone out, and so unless I messed up, all of them should have been lit at the same time. I haven't noticed any changes though, so I'm going to try to recheck all of them tomorrow and see if any went out. I might also check other locations that make sense to see if there are any other candles.
Here are the last of them that I found ( there could be more, but these are the ones I found by following this pattern):
