ES, good morning. So far the largest "expatriates" employers are located in theO&G sector as well as construction and project management.

My suggestions in the O&G sector are: (some you already have)

ExxonMobil
Total
Shell
Oxy
BP
Schlumberger
Halliburton
BJ Services

For construction and project management my information is really "NON".

Hope somebody else can help on this.!!

Regards!!