Underground production and development miners operate drilling/mining machines, load/detonate explosives as well as perform other activities in underground mining.
A. Oil and gas drillers and well servicers direct drill crews in setting up rigs during drilling activities and completing/servicing wells. They operate drill or service rig machinery controls.
B. Oil and gas well loggers, testers, and related workers operate specialized mechanical/electronic equipment, tools, and instruments to provide services for well drilling, completion, and servicing.