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Derrick Operators, Oil and Gas

SOC 47-5011.00Job Zone 2 · Some Preparationv.26.05

Context coveredThis framework covers the inspection, maintenance, fluid control, repair, and safe operation of oil and gas derrick systems, from entry-level rig-floor tasks through organization-wide leadership of drilling operations.

Sources:O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.SkillsCrosswalkSkillsCrosswalk — O*NET enrichment + adjacency index. Opens in new tab.
Emerging
Entry / Apprentice
  1. Derrick inspection basics — recognize visible flaws and surface defects under direct supervisor guidance before a derrick is raised on a drilling site.
  2. Cleaning and oiling procedures — follow step-by-step protocols to clean and lubricate derrick components under close supervision on an active rig.
  3. Crown block installation — assist in positioning and bolting crown blocks to derrick posts under the direction of an experienced operator.
  4. Mud pump start-up — initiate pumps that circulate drilling mud through drill pipes following a written checklist on a supervised job site.
  5. Drilling fluid properties — identify basic viscosity and weight readings on mud samples using hand-held instruments under trainer oversight.
  6. Rig pump monitoring — listen to mud pumps at regular intervals and report unusual sounds or vibrations to a senior operator on shift.
  7. Harness and climbing device use — don and adjust personal fall-arrest harnesses and platform climbing devices following safety protocols before ascending the derrick.
  8. Basic hand tool use — select and apply wrenches, hammers, and other hand tools to minor pump and tank fittings under direct instruction on the rig floor.
  9. Safety hazard recognition — identify common rig-site hazards such as slick surfaces, overhead loads, and pressurized lines when completing entry-level inspection rounds.
  10. Equipment log entry — record inspection findings, fluid readings, and pump status in paper or electronic logs using word processing or spreadsheet software under supervision.
Developing
Mid-level / Established
  1. Pre-raise derrick inspection — conduct full visual and mechanical inspections of derrick structures before raising or lowering operations with minimal supervisor prompting.
  2. Drilling fluid control — adjust viscosity and weight of drilling mud by adding materials and rechecking measurements to maintain target specifications during active drilling.
  3. Pump and mud tank repair — diagnose and repair common faults in mud pumps and tank fittings, restoring normal operation with reduced oversight on a producing well site.
  4. Crown block alignment — independently position and bolt crown blocks to derrick posts, verifying plumb and load ratings before drilling operations resume.
  5. Mud circulation troubleshooting — identify loss-of-circulation events or pressure anomalies by cross-referencing pump gauges and pit volume readings during a drilling shift.
  6. Derrick lubrication schedule — plan and carry out routine cleaning and oiling tasks on a recurring maintenance schedule to keep the derrick in safe working condition.
  7. Harness and climbing device operation — position and align derrick elements at height using climbing devices and safety harnesses, adapting to weather or platform conditions.
  8. Rig pump vibration analysis — evaluate pump vibration patterns against normal baselines and initiate corrective action before equipment damage occurs.
  9. Verbal status reporting — communicate shift findings, fluid readings, and equipment status clearly to drillers and crew members during handover meetings on site.
  10. Maintenance record management — update spreadsheet-based maintenance logs and generate routine inspection reports using company software after each completed task.
Proficient
Senior / Expert IC
  1. Full derrick inspection program — autonomously inspect all structural elements, connections, and load-bearing components of a derrick, ordering specialist inspections when deficiencies exceed field-repair scope.
  2. Advanced fluid engineering — continuously optimize drilling fluid viscosity, weight, and chemical additives to address changing formation pressures and protect drill bit performance.
  3. Complex pump system repair — diagnose and rebuild multi-stage pump assemblies, replace worn liners and seals, and return full mud-circulation systems to service without external assistance.
  4. Non-routine crown block operations — manage crown block rigging and bolt-up on irregular or damaged derrick posts, applying engineering judgment to load distribution and structural integrity.
  5. Integrated systems monitoring — simultaneously track pump pressures, pit volumes, mud properties, and derrick structural data to detect and resolve compounding rig problems during high-pressure drilling intervals.
  6. Derrick erection and teardown coordination — direct the full sequence of raising or lowering a derrick, verifying each mechanical and safety checkpoint across the entire operation.
  7. High-altitude element positioning — lead precise alignment of derrick components at crown level in adverse wind or weather conditions, applying depth perception and arm-hand steadiness skills to critical fits.
  8. Root-cause problem solving — apply systematic troubleshooting to recurring mud system or pump failures, tracing faults to root causes and implementing permanent corrective measures.
  9. Quality control verification — apply structured quality-control analysis to inspect welds, bolted joints, and fluid system integrity against API and company standards on completed rig assemblies.
  10. Crew technical guidance — explain inspection methods, fluid control procedures, and repair techniques to newer operators during on-the-job training sessions on a working rig.
Advanced
Lead / Principal / Executive
  1. Derrick inspection program oversight — establish and enforce site-wide derrick inspection standards and ordering criteria, ensuring regulatory compliance across multiple rigs or a full drilling program.
  2. Drilling fluid strategy — develop mud-program specifications for new wells based on formation data, well design, and cost targets, directing the derrick and mud-engineering team throughout execution.
  3. Maintenance system design — design preventive-maintenance schedules and repair-priority frameworks for all pump, tank, and derrick equipment across a rig fleet, reducing unplanned downtime.
  4. Capital equipment decisions — evaluate derrick condition assessments and repair-versus-replace trade-offs, making final recommendations to operations management on major equipment investments.
  5. Workforce development — design and deliver structured training curricula covering inspection, fluid control, and derrick operations for apprentice and mid-level derrick operators across the organization.
  6. Incident investigation leadership — lead root-cause investigations of rig equipment failures or near-miss events, producing formal reports with corrective actions presented to senior management.
  7. Cross-functional hazard management — coordinate with drillers, safety officers, and well engineers to integrate derrick and mud-system risk controls into the overall well-operations risk framework.
  8. Performance metrics and reporting — define key performance indicators for derrick and mud-system reliability, analyze trend data using spreadsheet tools, and report findings to operations leadership.
  9. Regulatory and standards representation — represent the organization in discussions with regulatory bodies and industry working groups on derrick safety standards and equipment certification requirements.
  10. Organizational culture of safety — model and champion cautiousness, integrity, and attention to detail as cultural norms, influencing derrick crew behavior and decision-making at every level of the operation.

AI-at-Work Competency Framework

Sources:Anthropic Economic IndexAnthropic Economic Index — release_2026_03_24. Opens in new tab.Jadhav & Danve, 2026Skill Automation Feasibility Index — Jadhav & Danve, 2026 (arXiv:2604.06906). Opens in new tab.WEF Skills TaxonomyWEF Skills Taxonomy 2021 — Building a Common Language for Skills at Work. Opens in new tab.

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Sources:Pathsmith™ Durable SkillsPathsmith™ Durable Skills Framework — America Succeeds + CompTIA. Opens in new tab.O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.
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Show O*NET source anchors45 anchors · skillscrosswalk.com

O*NET enrichment · skillscrosswalk.com

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Source anchors that ground each statement

Related titles
Derrick Hand · Derrick Man · Derrick Operator · Derrick Worker · Driller · Drilling Motorman · Floor Hand · Fracturing Derrick Operator · Gas Derrick Operator · Oil Derrick Operator · Rotary Derrick Operator · Well Service Derrick Worker
RAPIDS apprenticeships
—
O*NET skills
Operations MonitoringOperation and ControlCritical ThinkingRepairingSpeakingMonitoringQuality Control AnalysisActive ListeningComplex Problem SolvingTroubleshootingJudgment and Decision MakingEquipment MaintenanceCoordinationManagement of Personnel Resources
Knowledge domains
MechanicalMathematicsEnglish LanguageEducation and Training
Abilities
Multilimb CoordinationControl PrecisionArm-Hand SteadinessManual DexterityReaction TimeProblem SensitivityExtent FlexibilityStatic StrengthDepth PerceptionHearing Sensitivity
Work styles
CautiousnessDependabilityAttention to DetailStress TolerancePerseveranceIntegrity
Technology
Spreadsheet softwareElectronic mail softwareWord processing software
Tasks · seed anchors for statements
  1. Inspect derricks, or order their inspection, prior to being raised or lowered.
  2. Inspect derricks for flaws, and clean and oil derricks to maintain proper working conditions.
  3. Control the viscosity and weight of the drilling fluid.
  4. Repair pumps, mud tanks, and related equipment.
  5. Set and bolt crown blocks to posts at tops of derricks.
  6. Listen to mud pumps and check regularly for vibration and other problems to ensure that rig pumps and drilling mud systems are working properly.
  7. Start pumps that circulate mud through drill pipes and boreholes to cool drill bits and flush out drill cuttings.
  8. Position and align derrick elements, using harnesses and platform climbing devices.
CIP education codes
46.0504

Sources: O*NET v30.2 (CC BY 4.0), SkillsCrosswalk.com, LER.me®, Anthropic Economic Index, SAFI (Jadhav & Danve, 2026), WEF Skills Taxonomy 2021, Pathsmith™ Durable Skills Framework. © 2026 EBSCOed.