I read somewhere about there are 3 types of Gas Company.

Consultant - Technip, MMC
Operator - Petronas, Shell
Contractor - Schlumberger, Baker Hughes

From what I read, it says that consultant employees get paid least, but you are only doing office jobs - designing using AutoPipe, etc.
Contractors are paid the most amount of wages, but you will be working offshore, on the oil rif.

From contractor, its quite hard for you to jump into operator companies such as Shell, Petronas, but from consultancy companies, you will have a brighter chance of working with the operators
(I'm talking about jumping up the food chain, more convenient work place,no offshore life, more decent pay )

Any one care to explain n elaborate n correct what is wrong?
Im gonna graduate next year, trying to figure out with my life, where to work, and so on. Now I'm finishing my internship already, being here, make me realise, deciding field of work is not an easy choice. BTW I'm a Mechanical Engineering student.