Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: PATTERSON-UTI DRILLING CO. LLC

Unprogrammed Other inspection · Safety discipline

On , OSHA opened an unprogrammed Other safety inspection of PATTERSON-UTI DRILLING CO. LLC in SEC-31, TWN-47N, RNG-103W, MEDORA, ND 58645 (NAICS 211111). OSHA activity number 331097634.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
SEC-31, TWN-47N, RNG-103W
City
MEDORA
State
ND
ZIP
58645
Mailing
450 GEARS RD. #500, HOUSTON, TX 77067
Inspection type
Unprogrammed Other (I)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
211111
Employees
14
Ownership type
A

7 citations on file for this inspection.

1910.23 A08 II

Serious Gravity 5 1 instance 11 exposed
Issued
Mar 22, 2012
Abate by
Apr 20, 2012
Penalty
Initial $4,400 · Current $3,080 Reduced
29 CFR 1910.23(a)(8)(ii):   Every floor hole into which persons could accidentally walk were not guarded by a floor hole cover of standard strength and construction:    a) On or about October 28, 2011, and at times prior, employees were exposed to injury in that, there were several floor holes with missing covers in the mixing room.
Recent events (2)
  • — I (S) $3080
  • — Z (S) $4400

1910.110 B06

Serious Gravity 5 1 instance 7 exposed
Issued
Mar 22, 2012
Abate by
Apr 20, 2012
Penalty
Initial $5,500 · Current $3,850 Reduced
29 CFR 1910.110(b)(6):   Propane gas cylinders were not located outside of buildings:      a) On or about October 28, 2011, and at times prior, employees were exposed to injury in that, three propane tanks were stored inside a storage area.
Recent events (2)
  • — I (S) $3850
  • — Z (S) $5500

1910.157 E02

Deleted Serious Gravity 1 1 instance 7 exposed
Issued
Mar 22, 2012
Abate by
Mar 27, 2012
Penalty
Initial $3,300 · Current $0 Reduced
29 CFR 1910.157(e)(2):   Portable fire extinguishers were not visually inspected at least monthly:      a) On or about October 28, 2011, and at times prior, employees were exposed to injury in that, the fire extinguishers were not visually inspected monthly.
Recent events (2)
  • — I (S) $0
  • — Z (S) $3300

1910.303 G01 II

Serious Gravity 5 1 instance 11 exposed
Issued
Mar 22, 2012
Abate by
Apr 20, 2012
Penalty
Initial $4,400 · Current $3,080 Reduced
29 CFR 1910.303(g)(1)(ii):   The required working space about electric equipment rated 600 volts, nominal, or less to ground, shall not be used for storage:    a) On or about October 28, 2011, and at times prior, employees were exposed to injury in that, the electrical panel in the electrical trailer was blocked.
Recent events (2)
  • — I (S) $3080
  • — Z (S) $4400

1910.304 G04 I

Serious Gravity 5 1 instance 7 exposed
Issued
Mar 22, 2012
Abate by
Apr 20, 2012
Penalty
Initial $0 · Current $0
29 CFR 1910.304(g)(4)(i):   The equipment grounding conductor and the grounding electrode conductor were not connected to the grounded circuit conductor on the supply side of the service disconnecting means, or on the supply side of the system disconnecting means or overcurrent devices when the system was separately derived:    a) On or about October 28, 2011, and at times prior, employees were exposed to injury in that, the electrical and rig manager trailers were not grounded.
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

1910.305 G02 II

Serious Gravity 5 1 instance 7 exposed
Issued
Mar 22, 2012
Abate by
Apr 20, 2012
Penalty
Initial $0 · Current $0
29 CFR 1910.305(g)(2)(ii):   Flexible cords were not used in continuous lengths without splice or tap:      a) On or about October 28, 2011, and at times prior, employees were exposed to injury in that, an electrical cord located at the command center was improperly spliced.
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

1910.134 H02 I

Other-than-serious 1 instance 7 exposed
Issued
Mar 22, 2012
Abate by
Apr 20, 2012
Penalty
Initial $0 · Current $0
29 CFR 1910.134(h)(2)(i):   Respirators were not stored to protect them from damage, contamination, dust, sunlight, extreme temperatures, excessive moisture, and damaging chemicals or  were not packed or stored to prevent deformation of the facepiece and exhalation valve:      a) On or about October 28, 2011, and at times prior, employees were exposed to illness in that, respirators were not cleaned or stored properly.
Recent events (2)
  • — I (O) $0
  • — Z (O) $0

View Patterson-Uti Drilling CO. LLC's full OSHA safety record →

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 331097634.

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