Unscrew or tighten pipes, casing, tubing, and pump rods, using hand and power wrenches and tongs

Keep pipe deck and main deck areas clean and tidy

Walk flow lines to locate leaks, using electronic detectors and by making visual inspections, and repair the leaks

Move pipes to and from trucks, using truck winches and motorized lifts, or by hand

Bolt together pump and engine parts

Guide cranes to move loads about decks

Clean up spilled oil by bailing it into barrels

Dig drainage ditches around wells and storage tanks

Bolt or nail together wood or steel framework to erect derricks

Cut down and remove trees and brush to clear drill sites, to reduce fire hazards, and to make way for roads to sites