In my opinion all O & G exploration/producing companies have a weighted salary/compensation scale with very marginal slides. So be very happy with any opportunity within their perimeter.For people who find it inconceivable that a freshman in these companies would make 500,000naira/month should google up the same position within the same company in other foreign countries eg. USA.I work for an oil company in united states as an operator and make more than $130,000/year + overtime. With my bonus and other incentives I take home about $150,000/year and I am not an engineer. Understand also that working in an oil company involves a lot of risk and exposure to hazards, so you are well compensated.While it is a great opportunity, it is not a job for every person. Mistakes are intolerable, ethical standards very high; this job will take your time, friends, sometimes family, etc but will put so much money in your pocket.So think about it!