OPEP

 https://docs.google.com/document/d/1sN1eWQcQ94JtIYeZsjTV0L3GIqfiOgScSdB87CWTqwY/edit

https://www.bbc.com/mundo/noticias-america-latina-52250630

https://www.animalpolitico.com/2020/04/como-fue-acuerdo-mexico-opep-petroleo/

https://www.eleconomista.com.mx/empresas/Mexico-solo-reducira-6-su-produccion-de-crudo-tras-acuerdo-con-la-OPEP-Nahle-20200415-0050.html