The Nissan Path

Hello all, I've got a 2006 Pathfinder with an oil leak on the (US) driver's side. From what it looks like, the oil is leaking from around the rear mounting bolt on the AC compressor? I see oil pooled around the cap of the bolt and oil staining below it, but everything looks good above the bolt.

Does this bolt go straight through the engine block to an oil galley?

If you are referring to the mounting bolts, then, no, they do not go into oil galleries. Most likely source would be a leaking valve cover gasket, but not the only possibility.