Mining Incidents

North Troy: 122 MSHA citations Metal/Non-Metal

Controlled by Vulcan Materials Company
Mill Creek, Johnston County, OK  ·  Active
MSHA Mine ID: 3401905

North Troy has $20K in proposed MSHA penalties and $0 outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
23
Years on record
2005–2025
Latest incident
Jan 2025
Compliance record
MSHA citations since 2006
122
citations
25
significant & substantial
$20,165
proposed penalties
$19,294
paid to date
96% of proposed penalties paid to date, a $871 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
47
inspections on record
1,183
inspection hours
10.3
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
122 citations across 1,183 inspection hours.
Source: MSHA inspections data, updated weekly.

North Troy has $20K in proposed MSHA penalties and $0 outstanding across 5 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$20K
proposed penalties
$19K
current assessed
$19K
paid to date
$0
outstanding
107 assessments are final orders; 5 contested dockets.
Of $3K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2025-10-16.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
20.5%
significant & substantial
2.5%
high negligence or reckless
21.3%
reasonably likely or greater
47.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.8% low, 87.7% moderate, 2.5% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
7 citations taken to the federal commission · 6% of citations on record
  • Settled 6 · 86%
  • Vacated or withdrawn 1 · 14%
33%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 6 decided S&S contests · industry: 79%
48%
Penalty reduction in decided contests
$3K proposed, $1K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2019-07-14.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
CENT 2016-0377 Prevail Manning 2017 $873 → $250
CENT 2019-0297 Settlement Bulluck 2019 $636 → $196
CENT 2010-151M Settlement Paez 2012 $540 → $540
CENT 2016-0401 Settlement Lesnick 2016 $448 → $324
CENT 2014-0376 Settlement Miller 2014 $224 → $100
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2026-07-29
0%
of limit-tested samples over the exposure limit
30
samples
15
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz16
  • Respirable dust, <.1mg11
  • Arsenic fumes1
  • Beryllium fumes1
Show the individual readings (42)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-07-29 Respirable dust, <.1mg 0 Crusher Oper/Worker
2026-07-29 Quartz, respirable, >1% Qtz 0.19 Utility Man
2026-07-29 Respirable dust, <.1mg 0 Truck Driver
2026-07-29 Quartz, respirable, >1% Qtz 0.32 1.22 0.26 Utility Man
2023-06-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-06-07 Respirable dust, <.1mg 0 Truck Driver
2023-06-07 Quartz, respirable, >1% Qtz 0.2 Crusher Oper/Worker
2023-06-07 Quartz, respirable, >1% Qtz 0.63 1.75 0.36 Laborer, Bullgang
2020-10-21 Quartz, respirable, >1% Qtz 0.59 1.28 0.46 Laborer, Bullgang
2020-10-21 Quartz, respirable, >1% Qtz 0.25 Laborer, Bullgang
2020-10-21 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2017-05-10 Respirable dust, <.1mg 0 Laborer, Bullgang
2017-05-10 Quartz, respirable, >1% Qtz 0.52 1.23 0.42 Laborer, Bullgang
2017-05-10 Quartz, respirable, >1% Qtz 0.25 1.15 0.22 Laborer, Bullgang
2017-05-10 Respirable dust, <.1mg 0 Truck Driver
2016-07-20 Quartz, respirable, >1% Qtz 0.3 2.5 0.12 Laborer, Bullgang
2016-07-20 Respirable dust, <.1mg 0 Truck Driver
2016-07-20 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-07-20 Quartz, respirable, >1% Qtz 0.15 1.67 0.09 Crusher Oper/Worker
2016-07-20 Quartz, respirable, >1% Qtz 0.52 0.95 0.55 Laborer, Bullgang
2013-09-11 Quartz, respirable, >1% Qtz 0.5 1.05 0.48 Laborer, Bullgang
2013-09-11 Respirable dust, <.1mg 0 Truck Driver
2013-09-11 Respirable dust, <.1mg 0 Crusher Oper/Worker
2013-09-11 Unlisted Particulate, respirable, <1% Qtz 1.41 Laborer, Bullgang
2013-09-11 Quartz, respirable, >1% Qtz 0.19 0.86 0.22 Laborer, Bullgang
2010-03-30 Arsenic fumes 0 1500 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Zinc oxide fumes 0 10 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Vanadium fumes 0 50 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Nickel fumes 0 3 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Molybdenum fumes 0 20 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Manganese fumes 0 5 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Magnesium oxide fumes 0 20 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Lead fumes 0 450 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Iron oxide fumes 0 20 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Copper fumes 0 300 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Cobalt fumes 0 300 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Chromium, insoluble 0 3 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Cadmium oxide fumes 0 100 0.00 Pipe Fitter/Millright/Plumber
2010-03-30 Beryllium fumes 0 6 0.00 Pipe Fitter/Millright/Plumber
2008-05-06 Quartz, respirable, >1% Qtz 0.15 1.18 0.13 Drill Operator, Rotary
2008-05-06 Quartz, respirable, >1% Qtz 0.19 1.75 0.11 Drill Operator, Rotary
2008-05-06 Quartz, respirable, >1% Qtz 0.23 1.14 0.20 Crusher Oper/Worker
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.

North Troy recorded 0.00 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Oklahoma, metal and nonmetal mining averaged 1.92 cases per 100 workers that year.
Year total case rate days-away fatal
2025 0.00 0.00 0.000
2024 1.50 0.00 0.000
2023 1.68 1.68 0.000
2022 1.75 1.75 0.000
2021 0.00 0.00 0.000
2020 1.83 0.00 0.000
2019 0.00 0.00 0.000
2018 * 4.02 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Meridian Aggregates Company 2003 to 2005
  2. Martin Marietta Materials, Inc. 2005 to 2014
  3. Vulcan Construction Materials, LLC 2014 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 64
2025 59
2024 55
2023 48
2022 47
2021 43
2020 43
2019 41
2018 40
2017 37
2016 38
2015 37
2014 23
2013 19
2012 15
2011 15
2010 16
2009 23
2008 44
2007 50
2006 48
2005 3
Source: MSHA quarterly employment and production, updated weekly.

North Troy sits in Johnston County, Oklahoma, where the Census mining category is 5.7% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Johnston County, Oklahoma · Population 10,334
5.7%
Mining share of county employment
$50,911
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2026 Q2 39,845 0 0 0.0
2026 Q1 36,444 0 0 0.0
2025 Q4 39,543 6 2 151.7
2025 Q3 36,865 0 0 0.0
2025 Q2 35,095 0 0 0.0
2025 Q1 29,052 0 0 0.0
2024 Q4 30,783 0 0 0.0
2024 Q3 37,016 0 0 0.0
Show 77 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 32,518 0 0 0.0
2024 Q1 32,615 2 0 61.3
2023 Q4 28,033 0 0 0.0
2023 Q3 31,511 0 0 0.0
2023 Q2 29,818 0 0 0.0
2023 Q1 29,557 0 0 0.0
2022 Q4 28,062 0 0 0.0
2022 Q3 29,538 0 0 0.0
2022 Q2 30,639 0 0 0.0
2022 Q1 26,363 0 0 0.0
2021 Q4 26,245 1 1 38.1
2021 Q3 28,160 0 0 0.0
2021 Q2 25,997 1 0 38.5
2021 Q1 23,399 0 0 0.0
2020 Q4 24,474 2 0 81.7
2020 Q3 30,201 0 0 0.0
2020 Q2 28,080 0 0 0.0
2020 Q1 26,827 1 1 37.3
2019 Q4 25,692 1 0 38.9
2019 Q3 25,293 0 0 0.0
2019 Q2 25,590 5 1 195.4
2019 Q1 25,487 1 0 39.2
2018 Q4 24,707 0 0 0.0
2018 Q3 26,048 0 0 0.0
2018 Q2 25,298 2 1 79.1
2018 Q1 23,400 2 2 85.5
2017 Q4 21,522 0 0 0.0
2017 Q3 23,445 0 0 0.0
2017 Q2 22,306 1 1 44.8
2017 Q1 21,322 3 0 140.7
2016 Q4 21,941 0 0 0.0
2016 Q3 24,751 5 0 202.0
2016 Q2 22,980 0 0 0.0
2016 Q1 25,465 3 1 117.8
2015 Q4 25,433 0 0 0.0
2015 Q3 26,972 0 0 0.0
2015 Q2 23,080 2 1 86.7
2015 Q1 20,914 2 0 95.6
2014 Q4 18,274 0 0 0.0
2014 Q3 15,945 0 0 0.0
2014 Q2 17,861 1 1 56.0
2014 Q1 16,191 6 1 370.6
2013 Q4 15,523 0 0 0.0
2013 Q3 15,516 1 0 64.4
2013 Q2 13,176 0 0 0.0
2013 Q1 12,120 3 2 247.5
2012 Q4 8,503 0 0 0.0
2012 Q3 8,484 0 0 0.0
2012 Q2 9,406 0 0 0.0
2012 Q1 8,118 5 0 615.9
2011 Q4 8,907 0 0 0.0
2011 Q3 10,745 0 0 0.0
2011 Q2 9,811 0 0 0.0
2011 Q1 6,478 0 0 0.0
2010 Q4 9,404 0 0 0.0
2010 Q3 8,502 1 0 117.6
2010 Q2 9,511 0 0 0.0
2010 Q1 9,188 7 1 761.9
2009 Q4 10,627 0 0 0.0
2009 Q3 16,621 0 0 0.0
2009 Q2 16,416 0 0 0.0
2009 Q1 15,538 0 0 0.0
2008 Q4 27,339 6 3 219.5
2008 Q3 21,418 0 0 0.0
2008 Q2 25,453 3 0 117.9
2008 Q1 31,476 1 0 31.8
2007 Q4 31,922 0 0 0.0
2007 Q3 31,876 0 0 0.0
2007 Q2 33,048 2 0 60.5
2007 Q1 34,996 0 0 0.0
2006 Q4 35,430 8 1 225.8
2006 Q3 32,800 0 0 0.0
2006 Q2 30,329 0 0 0.0
2006 Q1 30,316 0 0 0.0
2005 Q4 2,328 0 0 0.0
2005 Q3 2,914 0 0 0.0
2005 Q2 428 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

23 on file

2025 · 1 incident

January 14, 2025 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
Vulcan Construction Materials, LLC · Unclassified, insufficient data

Employee had a periodic screening chest x-ray read by two B-readers using the ILO procedures. The X-ray was characterized as consistent with pneumoconiosis with readings of 2/3 and 3/2. Damage or impairment cannot be determined solely by reading chest x-ray films. This report is being submitted to satisfy MSHA program policy letter P92-III-2.

2024 · 1 incident

August 13, 2024 OK · Metal/Non-Metal motorman, motor person, swamper, switchman, locomotive operator HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in lifting objects

On 8/13/24, employee was throwing away a 20 lb scrap pump into metal waste bin when EE felt discomfort in EE's back right side. EE used 1st aid measures to help with the discomfort for 2 weeks. When the pain did not resolve EE sought medical treatment on 8/27, were diagnosed with a back strain and issued restrictions & medications.

2023 · 1 incident

March 21, 2023 OK · Metal/Non-Metal shuttle car operator, mantrip operator, ramcar operator, rail runner, buggy operator SLIP OR FALL OF PERSON
Vulcan Construction Materials, LLC · Fall onto or against objects

Employee was making their way to the back of a locomotive via the walkway and slipped on a step. They landed on their left knee. Later in the morning employee was still feeling discomfort and asked to go to the clinic. Employee was evaluated and referred for further evaluation and given light-duty restrictions.

2022 · 1 incident

September 12, 2022 OK · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
Vulcan Construction Materials, LLC · Over-exertion in wielding or throwing objects

Employee was swinging a hammer in a downward motion when the head of the hammer flew off, causing the employee to increase momentum. The sudden increase in momentum resulted in pain in the employees left shoulder.

2020 · 1 incident

2018 · 2 incidents

November 12, 2018 OK · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

EE was changing screen in screen #5. As EE was attempting to exit the area EE set right leg to side and felt pain in knee. The pain immobilized use of right leg and EE needed assistance to vehicle. EE was escorted to ER by spouse.

2016 · 1 incident

April 27, 2016 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in lifting objects

Employee tore a ligament in EE's back while lifting a skid steer tire.

2015 · 5 incidents

November 24, 2015 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (REPEATED TRAUMA)
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

EMPLOYEE FILED WORK COMP ON 11/24/2015 FOR CARPAL TUNNEL IN BOTH WRISTS. ON 6/20/2017 HE HAD SURGERY ON LEFT WRIST.

October 7, 2015 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Vulcan Construction Materials, LLC · Fall from machine

Employee lost his balance while exiting loader and fell to the ground. He sought medical attention and is currently losing time.

June 30, 2015 OK · Metal/Non-Metal electrician, lineman HANDTOOLS (NONPOWERED)
Vulcan Construction Materials, LLC · Struck by... (Not Elsewhere Classified)

Employee was removing a new Hawkbill flip knife from it's plastic packaging when his hand was cut by the blade, requiring two stitches.

May 15, 2015 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Caught in, under or between a moving and a stationary object

Employee experienced a laceration on his finger while assisting another employee with a belt replacement on a conveyor. He sought medical attention, received 4 stitches and was released to full duty.

February 6, 2015 OK · Metal/Non-Metal dryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operator HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in pulling or pushing objects

Employee was performing maintenance on a conveyor when he felt pain in his right shoulder. After seeking medical attention on Feburary 9, 2015 the injury was determined not to be work related. On December 23, 2015 a determination was made that this injury was work related. This is being reported within 10 working days of this notification.

2014 · 2 incidents

June 15, 2014 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Struck by... (Not Elsewhere Classified)

While assembling loader tire bead band became bound. Trying to seat the band the tech struck the top portion of bead band and lower portion sprung back striking tech in the upper abdominal area.

April 18, 2014 OK · Metal/Non-Metal utility man, shift tech, service/dump truck operator DUST DISEASE OF LUNGS
Martin Marietta Materials, Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Received results indicating employee reached the MSHA levels of silicosis.

2013 · 2 incidents

May 28, 2013 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Materials, Inc. · Struck by... (Not Elsewhere Classified)

Tech was backed up to a 777C wheel to install wheel studs. The hooks were too small to properly fit in the hole to lock hold. Tech was holding the hook in place and when the load hit the hook, it slipped out and caused nail avulsion on Left Middle finger.

March 17, 2013 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Martin Marietta Materials, Inc. · Over-exertion (Not Elsewhere Classified)

Climbing down ladder from top deck station #3, when knee twisted & popped. Employee was done with work on the top deck Station #3, as he went to the ladder to get down he turned sideways to get into the ladder and popped his left knee. This first aid incident did not reveal to require surgery until May.

2012 · 1 incident

November 13, 2012 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Martin Marietta Materials, Inc. · Struck against a moving object

DRIVING HAUL TRUCK AND HIT BUMP IN THE ROAD. HIS SEAT CAME BACK DOWN AND HIT HIS ELBOW ON THE FIXED ARM REST ATTACHED TO DOOR.

2010 · 2 incidents

November 2, 2010 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Over-exertion (Not Elsewhere Classified)

Employee was changing out worn brake shoes on a company owned railcar. While using a new brake shoe to tap worn brake shoe out, felt a pop in his left shoulder and experienced pain. Immediately reported to supervisor but did not want to go to the clinic. Went to clinic on 11/08/2010 because of continued pain in left shoulder.

October 19, 2010 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Caught in, under or between (Not Elsewhere Classified)

Employee was flipping gates to switch from 57 to 467 in Station 6. Went to flip gate over and it didn't shut all the way. Employee pulled it back to shut it the rest of the way and didn't let go of it in time resulting in his middle finger on left hand being smashed.

2007 · 1 incident

2005 · 2 incidents

December 21, 2005 OK · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Martin Marietta Materials, Inc. · Caught in, under or between (Not Elsewhere Classified)

A crew of 4 men were installing a belt, using a forklift and boom truck. Two employees were watching. One stationed at the tail pulley; one between the tail pulley & boom truck. The Forklift was on the opposite side of the conveyor pulling the belt. As the belt went around the pulley the employee reached in. The belt jumped and pulled his hand into the tail pulley.

August 9, 2005 OK · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management FIRE
Martin Marietta Materials, Inc. · Contact with hot objects or substances

EE WAS DRILLING. HE TURNED UP SETTINGS ON COMPRESSOR. APPROX 5 MIN AFTER TURNING UP THE PRESSURE, HOSE CARRYING AN AIR/OIL MIXTURE BLEW. HOSE WAS NEXT TO COOLING FAN WHICH BLEW THE MIXTURE INTO THE TURBO ON THE ENGINE & MIXTURE IGNITED. HE LOOSENED HARD HAT & RECEIVED 2ND DEG BURNS ON HIS HEAD. HE THEN PUT THE FIRE OUT W/THE EXTINGUISHER IN THE RIG. FIRE LASTED 3-4 MIN.