47-5011.00 · Task explorer
Derrick Operators, Oil and Gas: reported tasks and exploration worksheet
Rig derrick equipment and operate pumps to circulate mud or fluid through drill hole.
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Read the task inventory
This source lists 15 tasks, including 14 marked Core and 1 marked Supplemental. Labels and dates are retained below. Employers can combine or divide these responsibilities differently; explore the task itself before assuming it belongs in every version of the role.
Task source dates: 08/2026.
15 tasks shown
Core · Task 9895 · 08/2026 · Incumbent
Start pumps that circulate mud through drill pipes and boreholes to cool drill bits and flush out drill cuttings.
Core · Task 9891 · 08/2026 · Incumbent
Control the viscosity and weight of the drilling fluid.
Core · Task 9894 · 08/2026 · Incumbent
Listen to mud pumps and check regularly for vibration and other problems to ensure that rig pumps and drilling mud systems are working properly.
Core · Task 9889 · 08/2026 · Incumbent
Inspect derricks, or order their inspection, prior to being raised or lowered.
Core · Task 9899 · 08/2026 · Incumbent
Prepare mud reports, and instruct crews about the handling of any chemical additives.
Core · Task 9896 · 08/2026 · Incumbent
Position and align derrick elements, using harnesses and platform climbing devices.
Core · Task 9890 · 08/2026 · Incumbent
Inspect derricks for flaws, and clean and oil derricks to maintain proper working conditions.
Core · Task 9897 · 08/2026 · Incumbent
Supervise crew members, and provide assistance in training them.
Core · Task 9892 · 08/2026 · Incumbent
Repair pumps, mud tanks, and related equipment.
Core · Task 9903 · 08/2026 · Incumbent
Steady pipes during connection to or disconnection from drill or casing strings.
Core · Task 9901 · 08/2026 · Incumbent
Weigh clay, and mix with water and chemicals to make drilling mud, using portable mixers.
Core · Task 9898 · 08/2026 · Incumbent
Guide lengths of pipe into and out of elevators.
Core · Task 9900 · 08/2026 · Incumbent
Clamp holding fixtures on ends of hoisting cables.
Core · Task 9902 · 08/2026 · Incumbent
String cables through pulleys and blocks.
Supplemental · Task 9893 · 08/2026 · Incumbent
Set and bolt crown blocks to posts at tops of derricks.
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Source and practice material
Occupational context uses the O*NET® 31.0 Database from the U.S. Department of Labor, Employment and Training Administration, under CC BY 4.0. View the occupation.
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