By that definition, I would never have been counted in those numbers after decades in the industry. I always worked for someone like an engineering firm with an oil/gas client. For us, there are dozens of engineers/designers/procurement/etc people for every client engineer.
If you work at a factory that makes pipe for the oil/gas industry, you would not be counted in those numbers. Lots and Lots of indirects for the directs.
I think if they counted it like they do ‘automotive industry’ jobs there would be 10x that many.