robinson 44,
Hippolite is right, I'd like to try some of what you smoking.
There is nothing like Bell 47 flying in Nigeria because there is nothing like Avgas in Nigeria for many years. As for other single turbine helicopter, they will soon be prohibited for all offshore and anyway Exxon/Mobil will never use anything but twin with 2 crew. They are now changing from Bell 212 to Bell 412 EP and also have some S76 flying for them. Their main base anyway is Qua Ibo Terminal, on the beach near Eket and the only pilots they emploi direct is for fix wing. If you want to fly helicopter for them you better join Bristow.
If you want to fly 350B2 join Caverton Helicopter, but you have to like to live in Nigeria 9 months a year if you work for them, and they're Nigerian company so maybe some months you won't get your pay. You can post a resume on their website.