It must be way higher if you really got into it
i.e. A friend that works on rigs is flown to and from rigs from anywhere on earth every month, then choppers out to the rig and back. Same for everyone that works on the rigs.
And? Given how much typical oil rig produces this would not be a serious part of its production.
And? Given how much typical oil rig produces this would not be a serious part of its production.