Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,214Inspections Most recent open 2026-07-16 Last loaded 2026-07-20

OSHA Inspection: PATTERSON UTI DRILLING CO. RIG # 527

Complaint inspection · Safety discipline

On , OSHA opened a complaint safety inspection of PATTERSON UTI DRILLING CO. RIG # 527 in HWY 83 W 3.5 MI N 3.4 MI OF ZAPATA, ZAPATA, TX 78076 (NAICS 213111). OSHA activity number 307893511.

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Site address
HWY 83 W 3.5 MI N 3.4 MI OF ZAPATA
City
ZAPATA
State
TX
ZIP
78076
Mailing
P.O.DRAWER 1416, SNYDER, TX 79550
Inspection type
Complaint (B)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
N
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
213111
SIC code (legacy)
1381
Employees
23
Ownership type
A

3 citations on file for this inspection.

5(a)(1)

Deleted Serious Gravity 10 1 instance 20 exposed
Issued
Abate by
Penalty
Initial $5000.00
Section 5(a)(1) of the Occupational Safety and Health Act of 1970:  The
employer did not
furnish employment and a place of employment which were free from
recognized hazards that
were causing or likely to cause death or serious physical harm to
employees in that employees
were exposed to a struck-by:
The employees were exposed to a struck-by hazard due to the improper
installing
of the rotary bushings on rig floor, the bushings were not secured to
prevent them
from coming out and off the rotary table. The employer failed to install
the locks
required.
Among other methods, one feasible and acceptable abatement method to
correct
this hazard is to install the rotary bushings with the required locks to
prevent it
from coming apart.
Recent events (2)
  • — F (S)
  • — Z (S) $5000.00

5(a)(1)

Serious Gravity 05 2 instances 4 exposed
Issued
Abate by
Penalty
Initial $2975.00 · Current $2975.00
Section 5(a)(1) of the Occupational Safety and Health Act of 1970:  The
employer did not
furnish employment and a place of employment which were free from
recognized hazards that
were causing or likely to cause death or serious physical harm to
employees in that employees
were exposed to a struck by hazard:
Employees were exposed to a struck-by hazard due to improper installation
of
Crosby-clips on wire rope on the mud bucket. The employer improperly
installed
the wire rope clips and failed to install thimbles at the ends of the wire
rope used
an eye to lift the mud bucket.
Among other methods, one (1) feasible and acceptable method to correct this
hazard is to install the Crosby-clips properly. Thimbles are recommended
to be
used instead making an eye from the wire rope.
Recent events (2)
  • — F (S) $2975.00
  • — Z (S) $2975.00

1910.134 H02 I

Other-than-serious Gravity 01 2 instances 4 exposed
Issued
Abate by
Recent events (2)
  • — F (O)
  • — Z (O)

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 307893511.