Acknowledgements
My field research in México could not have been conducted without the assistance of three Sonorenses, all of whom are now deceased. They comprised three generations of one family: Señor J.M. Loera, his son Ricardo Loera, and his son Lance Corporal Orlando Loera (USMC). This paper is dedicated to them and written in their memory. Mil gracias amigos. Que en paz descansen.
Notes
1. Since 1977, the author has made 64 separate trips to México lasting from a few days to a few months. He has been in every state at least twice; 17 trips were made to the state of Sonora alone.
2. México has long had one nationalized oil company, Petróleos Mexicano, known colloquially as Pemex.
3. The others are Brazil, India, and South Africa.