Time to get this a bit in perspective. I too have worked there on and off from the 1970s.
Nigeria is undoubtedly a very corrupt and dangerous country (and getting more dangerous on the streets over the last 2 years). I have personally been attacked in an attempted robbery and had 3 (failed) hijack attempts on my helicopter. The most dangerous place to be is in a moving car (especially at night due to the large number of enormous potholes, little street lighting because of the numerous power failures, and the lack of much in the way of lighting on most of the vehicles). Road accidents are the largest single killer of Nigerians between the ages of 14 and 40.
However, travel through Lagos International Airport has improved beyond belief in the last few years, there is very little in the way of harassment from officialdom there any more and the air conditioning works.
Helicopter hijackings became quite common a few years ago, but these too have now ceased. This is probably due to the fact that security has been tightened up by the operators and helicopters no longer shut down at any of the flow stations in the swamps.
The Nigerian Airspace Management Agency and the NCAA are trying to improve matters. Many formerly unserviceable navaids have been brought back into service and regulations recently changed to a mix of JARs, FARs and ICAO. Time will tell whether there is the money and/or the willpower to make the regulations effective.
None of the helicopter operators there provides decent accommodation, with the possible exception of that for the staff on the Shell operation in Port Harcourt - fine if you want to live in a luxury prison camp miles from anywhere, and (possibly?) the Mobil operation in Qua Ibo Terminal. The financial 'rewards' nowhere near compensate for the conditions in which one has to live. Communication with the outside world has improved slightly with the introduction of a GSM telephone network, but this is grossly oversubscribed and in general communication is truly awful!
There are still a lot of old helicopters out there, but they are gradually being replaced with newer types (though some of these may well prove not to be to durable in the hot, humid, tropical conditions).
The Nigerians are a very outgoing and friendly people on the whole, very ready to laugh but unfortunately, also very ready to shout. It's sad that in the oil producing areas, years of neglect and corruption siphoning off the money has resulted in severe community problems with oil company offices, camps, airfields and terminals being over-run by sometimes-armed local youths. The all too frequent instances of sabotage on fuel pipelines and the few refineries in the country producing at way below capacity due to neglect, cause the world's seventh largest oil producer to suffer chronic shortages of petrol and kerosene. I do not see this getting any better for many years. The electrical supply isn't!! Generators are essential as even when there is any power the voltage is usually very low.
As long as you bear factors like these in mind it can still be a good place to work, but the operators are going to have to improve the incentives to be there if they are going to attract and keep the number and quality of staff they need to run their operations properly.