Career Library

Supervisors in mining and quarrying supervise and coordinate activities of workers engaged in underground and surface mining operations and quarries. They are employed by coal, metal and non-metallic mineral mines and quarries.

Contractors and supervisors in oil and gas drilling and services supervise and coordinate the activities in drilling for oil or gas, operating service rigs, or providing oil and gas well services. They are employed by drilling and well service contracting companies and petroleum producing companies. Contractors may be self-employed.