What does an Oil Field Roustabout do?

According to people in this career, the main tasks are...

TaskImportance
Unscrew or tighten pipes, casing, tubing, and pump rods, using hand and power wrenches and tongs.
77%
Dismantle and repair oil field machinery, boilers, and steam engine parts, using hand tools and power tools.
73%
Guide cranes to move loads about decks.
71%
Bolt or nail together wood or steel framework to erect derricks.
70%
Walk flow lines to locate leaks, using electronic detectors and by making visual inspections, and repair the leaks.
70%
Lay gas and oil pipelines.
69%
Dig holes, set forms, and mix and pour concrete into forms to make foundations for wood or steel derricks.
68%
Move pipes to and from trucks, using truck winches and motorized lifts, or by hand.
67%
Bolt together pump and engine parts.
67%
Clean trucks used in the fields.
65%
Supply equipment to rig floors as requested and provide assistance to roughnecks.
65%
Clean up spilled oil by bailing it into barrels.
63%
Keep pipe deck and main deck areas clean and tidy.
60%
Dig drainage ditches around wells and storage tanks.
59%
Cut down and remove trees and brush to clear drill sites, to reduce fire hazards, and to make way for roads to sites.
57%