The main purpose of Text I is to

warn professionals in the oil business about the frequent instability in oilfields.

criticize the strenuous working conditions oilfield operating teams are always submitted to.

provide useful advice to prospective workers intending to start a career in the oil industry.

inform the exact amount of experience a worker must have before looking for a job in an oil company.

encourage employees to look for a position in catering before applying for a job in offshore and overseas rigs.