PEP (acronym)

PEP is showing up a lot in the text, I'm pretty sure it's this:

http://energiaadebate.com/el-regimen-fiscal-petrolero-pep-contratistas-y-proveedores/ wrote:Cuando se habla del régimen fiscal de PEMEX, normalmente se hace referencia al régimen privativo de Pemex Exploración y Producción (PEP)

Should we leave it as PEP, and/or add a note such as PEP [Pemex Exploration and Production] at first mention?

I have left it as PEP, and I'm pretty sure I don't have the first mention (I think I got the end part of the doc). I would agree to add a note such as PEP [Pemex Exploration and Production] at first mention as you say. Do you have the first mention?

What about "PEA", did you find that?

I don't think we have to worry too much about PEP. I don't check, but I think they might even be the author. It seems like this should be fairly obvious in the context of the industry (working in Mexican oilfields).

Haven't seen PEA