Mining, Quarrying, Oil & Gas · Wewoka, OK

Mills Well Service, INC.

According to OSHA enforcement records (2010–2026), Mills Well Service, INC. ranks #911 of 99,447 penalized U.S. employers by total current penalty, with a concerning safety record: 9 violations across 2 inspections.

Top 1% by penalty56% serious
$151,000
OSHA penalties
9
Violations cited
2
OSHA inspections
#911
of 99,447 penalized employers

Mills Well Service, INC. in Wewoka, OK has been the subject of 2 OSHA workplace inspections and 9 citations since 2010, according to enforcement records from the U.S. Department of Labor. Total penalties assessed: $151,000. All enforcement data below is sourced from the DOL public enforcement databases at data.dol.gov.

The record in one line

OSHA has inspected Mills Well Service, INC. 2 times over 1 year - more than twice a year on average. These inspections resulted in 9 violations, averaging 4.5 per inspection, above what's typical for a single visit. According to OSHA enforcement records, its total current penalty ranks #911 of 99,447 penalized U.S. employers (the top 1% of penalized employers nationally). Of these, 5 were classified as serious and 3 as willful - indicating hazards that could cause death or serious harm. Against the Mining, Quarrying, Oil & Gas industry average of 2 inspections per employer, this sits roughly in line with peers (0.9x the sector average) on inspection frequency. For comparison, WadeCo Specialties in Midland, TX is another mining, quarrying, oil & gas employer with 0 OSHA inspections on record and $0 in current penalties.

4.5
violations per inspection
55.6%
of violations were serious
#911
of 99,447 penalized employers

Compliance score

F 25/100
  • F OSHA safety compliance: 9 violations across 2 OSHA inspections (4.5 per inspection), vs. national p10 0.0 (best) / p90 5.5 (worst) among 145,626 inspected employers.

Channels are separate federal datasets: a dimension marked not applicable simply has no record in that dataset for this employer, not a good or bad score.

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How Mills Well Service, INC. compares on OSHA penalties

Total current penalty vs the Mining, Quarrying, Oil & Gas per-employer average

in penalties

What this shows Mills Well Service, INC. runs far above peers (33.3x the sector average) in total OSHA penalties.

Source U.S. Department of Labor, OSHA enforcement extracts As of 2026

Where this penalty ranks nationally

Total current OSHA penalty vs every U.S. employer with a nonzero penalty

$151,000 Bottom 1% least affordable more affordable than 1% of 99,447 U.S. employers with a penalty

$0–$5,000: 43,959 U.S. employers with a penalty (44%). Below this entry. $5,000–$10,000: 20,304 U.S. employers with a penalty (20%). Below this entry. $10,000–$15,000: 11,027 U.S. employers with a penalty (11%). Below this entry. $15,000–$20,000: 6,546 U.S. employers with a penalty (7%). Below this entry. $20,000–$25,000: 4,175 U.S. employers with a penalty (4%). Below this entry. $25,000–$30,000: 2,877 U.S. employers with a penalty (3%). Below this entry. $30,000–$35,000: 2,036 U.S. employers with a penalty (2%). Below this entry. $35,000–$40,000: 1,493 U.S. employers with a penalty (2%). Below this entry. $40,000–$45,000: 1,095 U.S. employers with a penalty (1%). Below this entry. $45,000–$50,000: 785 U.S. employers with a penalty (1%). Below this entry. $50,000+: 5,150 U.S. employers with a penalty (5%). This entry ($151,000) is well above this band, the chart's rightmost open-ended bucket. This employer: $151,000 $0 $55,000+ every penalized U.S. employer, bucketed by value

Each bar is a $5K-wide band; taller bars hold more U.S. employers with a penalty. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Department of Labor, OSHA enforcement extracts · 2026

Does more inspection scrutiny mean more findings?

Each dot is one of 21 Mining, Quarrying, Oil & Gas employers with an OSHA inspection on record, placed by inspections and violations cited. The highlighted dot is Mills Well Service, INC..

Frequently inspected, many findingsRarely inspected, many findingsFrequently inspected, clean recordBelow median on both1.92.022.02.009.418.928.337.8OSHA inspectionsViolations citedJAY-BEE OIL & GAS, I…, OSHA inspections: 2 · Violations cited: 36EOG RESOURCES, INC., OSHA inspections: 2 · Violations cited: 10FORBES ENERGY SERVIC…, OSHA inspections: 2 · Violations cited: 2NEBCO SERVICES LLC, OSHA inspections: 2 · Violations cited: 3GRANITE CONSTRUCTION…, OSHA inspections: 2 · Violations cited: 1DNS AGGREGATES INC., OSHA inspections: 2 · Violations cited: 1NUNS CANYON QUARRY INC, OSHA inspections: 2 · Violations cited: 0SUNCOR ENERGY (U.S.A…, OSHA inspections: 2 · Violations cited: 0A TEICHERT & SON INC…, OSHA inspections: 2 · Violations cited: 0HANSON AGGREGATES, OSHA inspections: 2 · Violations cited: 19PAUL GRAHAM DRILLING…, OSHA inspections: 2 · Violations cited: 5CSI SANDS, LTD., OSHA inspections: 2 · Violations cited: 5SCHLUMBERGER INC., OSHA inspections: 2 · Violations cited: 1NOMAC DRILLING, LLC, OSHA inspections: 2 · Violations cited: 1THE DON CHAPIN CO., …, OSHA inspections: 2 · Violations cited: 1UNIT TEXAS DRILLING …, OSHA inspections: 2 · Violations cited: 2PORTERVILLE ROCK & R…, OSHA inspections: 2 · Violations cited: 1KELLOG CREEK AGGREGA…, OSHA inspections: 2 · Violations cited: 0GENERAL PRODUCTION S…, OSHA inspections: 2 · Violations cited: 0ENERGY TRANSPORTATIO…, OSHA inspections: 2 · Violations cited: 5Mills Well Service, …, OSHA inspections: 2 · Violations cited: 9
Mills Well Service, INC. has 2 OSHA inspections on record and 9 violations cited. The crosshair marks the median among these Mining, Quarrying, Oil & Gas peers. Across this sector's tracked employers, more inspections is moderately associated with more violations found -- not a coincidence, but not a guarantee either.

Mills Well Service, INC. in the Mining, Quarrying, Oil & Gas enforcement ledger

In Mining, Quarrying, Oil & Gas, Mills Well Service, INC. sits at penalty rank #2 of 1,117 penalized establishments ($151,000 assessed).

How Mills Well Service, INC. Compares

Mills Well Service, INC.'s 4.50 violations per inspection compares to the Mining, Quarrying, Oil & Gas sector average of 3.1 violations per employer.

Against the Mining, Quarrying, Oil & Gas industry average of $4,539 per employer, this employer's current OSHA penalty runs far above peers (33.3x the sector average).

Enforcement detail

OSHA Inspection History

Total Inspections

2

First Inspection

2018-04-03

Last Inspection

2018-04-09

Inspection Span

1 yr

Violations / Inspection

4.5

Avg Penalty / Inspection

$75,500

Industry Avg / Inspection

$2,042

What this shows 2 inspections over 1 year, averaging 4.5 violations per visit. That's $75,500 per inspection vs. the Mining, Quarrying, Oil & Gas average of $2,042.

Enforcement detail

Violation Breakdown

5

Serious

55.6% of total

3

Willful

33.3% of total

1

Repeat

11.1% of total

0

Other-Than-Serious

0.0% of total

What this shows Serious violations involve hazards that could cause death or serious physical harm. Willful violations indicate intentional or knowing disregard of the law. Repeat violations are for hazards previously cited within the past 5 years.

Enforcement detail

Penalty Analysis

Initial Penalty Assessed

$373,785

Current Penalty Amount

$151,000

Penalty Reduction

59.6%

What this shows Penalties were reduced by $222,785 from the initial assessment of $373,785. Reductions may result from informal settlements, formal contests, or negotiated agreements with OSHA.

Industry Safety Context: Mining, Quarrying, Oil & Gas

How Mills Well Service, INC. compares to the Mining, Quarrying, Oil & Gas sector, which has 2,294 employers tracked by PlainWorker.

Metric Mills Well Service, INC. Industry Avg
Inspections 2 2.2
Violations 9 3.1
Total Penalty $151,000 $4,539
Avg Penalty per Inspection $75,500 $2,042

Nationwide Mining, Quarrying, Oil & Gas peers with similar penalties or inspection counts

Two OSHA-record peer sets for Mills Well Service, INC., both outside OK so the neighborhoods are not geographic containment.

Similar current OSHA penalty

Nearest same-sector employers by current assessed penalty ($151,000 here).

Similar OSHA inspection count

Same-sector employers with a comparable inspection history outside this state (2 inspections here).

Nearby & Similar Employers in Mining, Quarrying, Oil & Gas

Showing 5 of 2293 other employers tracked in this sector.

Compare Mills Well Service, INC. vs American Drilling Corporation side-by-side →

What to do with this record

Use Mills Well Service, INC.'s enforcement history as one data point, not the whole picture.

  • A single employer's record can look unusual in isolation. Compare Mills Well Service, INC. against American Drilling Corporation, a similarly-sized employer in the same sector, before drawing conclusions. Compare side-by-side
  • See whether Mills Well Service, INC.'s inspection and penalty record is typical for Mining, Quarrying, Oil & Gas or an outlier against the sector's own average. View the Mining, Quarrying, Oil & Gas sector
  • Before you accept a job or raise a safety concern, search any employer for its own OSHA inspection history the same way you found this one. Search employers

Figures reflect closed OSHA and WHD federal enforcement actions on record (2010–2026); not every workplace issue results in an inspection or investigation.

Frequently Asked Questions

Is Mills Well Service, INC. safe to work at?
Based on OSHA records, Mills Well Service, INC.'s workplace safety record is concerning, with multiple serious compliance issues. The employer has 9 violations across 2 inspections, including 5 serious violations. Compared to Mining, Quarrying, Oil & Gas industry peers, this is above average for penalties. Review the full inspection history below for details.
How many OSHA violations does Mills Well Service, INC. have?
Mills Well Service, INC. has 9 OSHA violations on record, including 5 serious, 3 willful, and 1 repeat violations. The total current penalty amount is $151,000.
How many OSHA inspections has Mills Well Service, INC. had?
Mills Well Service, INC. has had 2 OSHA inspections, with the first recorded on 2018-04-03 and the most recent on 2018-04-09. This averages 4.5 violations per inspection.
What is the total penalty amount for Mills Well Service, INC.?
Mills Well Service, INC. has been assessed $151,000 in current OSHA penalties, reduced from an initial assessment of $373,785 (a 59.6% reduction).
Does Mills Well Service, INC. have any serious or willful violations?
Yes. Mills Well Service, INC. has 5 serious violations, 3 willful violations, and 1 repeat violations. Serious violations involve hazards likely to cause death or serious physical harm. Willful violations indicate the employer intentionally or knowingly disregarded the law.
What industry does Mills Well Service, INC. operate in?
Mills Well Service, INC. operates in the Mining, Quarrying, Oil & Gas sector (NAICS code 213112). This industry has 2,294 employers tracked by PlainWorker, with 5,098 total OSHA inspections and $10.41M in cumulative penalties.
Where does Mills Well Service, INC. rank nationally on OSHA penalties?
Among the 99,447 U.S. employers with a nonzero current OSHA penalty in PlainWorker's corpus, Mills Well Service, INC. ranks #911 (the top 1% of penalized employers nationally). The ordinal is a live COUNT of employers with a lower total_current_penalty; see the methodology page for the exact derivation.
How does Mills Well Service, INC.'s safety record compare to industry average?
Mills Well Service, INC.'s total OSHA penalty of $151,000 is above the Mining, Quarrying, Oil & Gas industry average of $4,539 per employer (33.3x the average). The employer has 2 inspections compared to the industry average of 2.2 per employer. For a direct comparison, WadeCo Specialties in Midland, TX is a similar mining, quarrying, oil & gas employer with $0 in current penalties.
Data Sources & Methodology

Data as of 2026. Source: U.S. Department of Labor (OSHA, WHD).

Source: OSHA Enforcement Data

Inspection and violation records from the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor, covering the period 2010–2026. Includes inspection dates, violation types (serious, willful, repeat, other-than-serious), and penalty amounts. Penalties shown are current assessed amounts and may differ from original citations due to settlement, contest, or reduction.

Source: Wage and Hour Division (WHD)

Compliance actions from the WHD, covering enforcement of the Fair Labor Standards Act (FLSA), including minimum wage, overtime, and child labor violations. Back wages represent amounts owed to affected employees as determined by WHD investigations.

Employer Matching

Employers are matched across OSHA and WHD datasets by name, state, and city. Employers included in PlainWorker have 2 or more OSHA inspections or $1,000+ in WHD back wages. Data is updated monthly from data.dol.gov.

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Every figure on PlainWorker is rendered directly from official U.S. Department of Labor OSHA and Wage & Hour Division enforcement records, no number is typed in by an editor. This employer's ratios (penalty-per-violation, industry comparisons) are computed live from the 2 inspections on record. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.