Wyo. Code R. 053-0031-10
OSHA - Wyoming Oil and Gas Well Drilling, Servicing, Special Servicing, Completion and Plugging, and Abandoning of Wells
Chapter 10: Equipment
Effective Date: 11/07/2025 to Current
Rule Type: Current Rules & Regulations
Reference Number: 053.0031.10.11072025
Equipment
(a) Derricks, masts and their auxiliary parts shall be constructed to conform to good engineering practices and maintained in a safe condition per manufacturer's specifications and industry best practices. Please see API Spec 4F (2023) and API RP 4G (2019) Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures.
(i) API Spec 4F (2023) Specification for Drilling and Well Servicing Structures provides requirements and recommendations for suitable steel structures for drill and well servicing operations in the petroleum industry with a uniform method of rating the structures, and provides two Product Specification Levels.
(ii) API RP 4G (2019) Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures (upstream segment) provides guidelines and establishes recommended practices for inspection, maintenance, and repair of items for drilling and well servicing structures in order to maintain the serviceability of this equipment. However, it is not a substitute for the manufacturer's instructions and the recommendations covered in API RP 54 (2019).
(b) Derricks and masts shall have a permanent name plate attached to the structure indicating:
(c) No person shall allow or require equipment modifications to be made or cause auxiliary equipment to be installed which are in conflict with these rules and regulations.
(d) Each derrick or mast requiring anchoring or guying, shall follow the manufacturer's recommendations. If manufacturer's recommendations are not available, an appropriate survey by a qualified engineer shall be made. A copy of the manufacturer's recommendations or a signed copy of the engineer's survey shall be made available for inspection.
(e) The mast or derrick shall be raised, lowered and/or moved following manufacturer's recommendations and industry best practices.
(f) The raising and lowering of a derrick or mast shall be performed under the direct supervision of a qualified person.
(g) Derricks and masts shall be equipped with guards which shall prevent the hoisting lines from being displaced from the sheaves during operations or when being raised or lowered from the operating position.
(a) A visual inspection of the drawworks and its working parts shall be made each day or tour before operations begin.
(b) If lubrication fittings are not outside of guards, machinery shall be completely stopped for oiling and greasing.
(c) The safety pressure relief valve on the main air tank shall be tested periodically and kept in proper working order.
(d) All valves or other working devices on hydrostatic lines shall never be set higher than the design rating of the hydraulic system or the manufacturer’s listed rating of the lines, whichever is less.
(e) Safety pressure relief valves on hydrostatic lines shall never be set higher than the design rating of the hydraulic system or the manufacturer’s listed rating of the lines, whichever is less.
(f) The brakes, linkage and brake flanges on the drawworks shall be tested and visually inspected each day.
(g) The equipment operator shall not leave the drawworks brake without tying the brake down or securing it with a catch lock, unless the drawworks is equipped with an automated control system.
(h) The equipment operator shall not leave the brake while the hoisting drum is in motion.
The employer shall comply with 29 CFR § 1910.301 through 1910.399 of Subpart S, Electrical as adopted in rule by the Department of Workforce Services, Wyoming OSHA Commission, found at: https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.301.
(a) Tanks for flammable materials shall be set so that if the tanks leak or rupture, the flammable materials shall drain away from the well and equipment by the use of ditches, dikes or their equivalent.
(b) All fixed mud guns used for jetting shall be pinned or hobbled at all times when not in use. (c) All discharge lines shall be safely secured. (d) Portable tanks shall be located where it is not possible for personnel or equipment to come into contact with overhead power lines (e) No employee shall jump from one tank top to another.
Section 5. Pumping Units. The employer shall follow manufacturer's recommendations for the pumping unit, along with any precautions for the hazards identified during the risk assessment process.