, possibly! I do not board (my horses are at my place) and most of my friends have their horses at their place. But if
needs specifics, I can ask people I know ...
1st - why Bakersfield and if not Bakersfield, where? Every area is different with what they have to offer, so knowing a geographic area would help narrow down people to ask.
2nd - Bakersfield certainly has the stall boarding, of course, but there are places you can get "pasture" boarding - in quotes because likely there will be little grazing & most likely more like a dry lot. But at least it's not a stall. It would most likely be at a very small barn or private residence that does boarding.
3rd - Central/Northern Central Valley has better options for non-stall boarding opportunities. If you want a nicer area, look to the central coast. Paso Robles, Buellton, Santa Ynez - nice areas. So, out of the urban areas, you're more likely to file pasture boarding, but it may be shared with other horses.
4th - There are NO non-prone fire areas in CA. Some areas might look like they have less stuff to burn, but the brush & tumbleweeds allow a fire to spread quickly to a more sustainable area (house with nice landscaping/trees). Ask me how I know.
I live in the upper desert/mountain area. We have little trees around us (there are some around my house), but we are prone to fires as is anyone. You just need to have a fire escape plan in place and LEAVE when they tell you LEAVE. There is a group, I think it's called Cowboy 911 (they have a FB page - they are national) and other local groups that works to help with livestock evacuations during fires/other natural disasters. Of course, you also have to make sure your horses will load in a very high charged, stressful situation.
Finally - if a pen is the only option, what is the smallest you need. I know one place (not taking boarders) that have nice runs; the horses could probably lope a few strides, but that's about it. Still, it's not a stall and is sufficient for them (most get ridden every day). How often would you ride?