You shall ask HR abt the benefits as different Job Groups/departments have different allowances..... the standard benefits are medical, dental, optical, car allowance (regardless you own a car or not), hp allowance, broadband allowance,  8 days mandotary courses (external and internal), standby/on-call allowance, flexi working hours, can work from home...if u are in higher Job group then your benefits will be similar to Shell Malaysia Trading which even better (access to use shell's holiday banglows in MY, Housing loan, etc)
Instead of worry abt the benefits, you shall consider if you able always keep your competency levels on par with shell requirements....in other companies, as long u don't resign then you still have your work...but in Shell things change very fast and if u not competent enough then bye bye lor...