Mining, Quarrying, Oil & Gas · Ignacio, CO

Sierra Petroleum Services LTD

According to OSHA enforcement records (2010–2026), Sierra Petroleum Services LTD has a relatively clean safety record: 2 violations across 2 inspections. See the full breakdown below.

100% serious
$0
OSHA penalties
2
Violations cited
2
OSHA inspections

Sierra Petroleum Services LTD in Ignacio, CO has been the subject of 2 OSHA workplace inspections and 2 citations since 2010, according to enforcement records from the U.S. Department of Labor. All enforcement data below is sourced from the DOL public enforcement databases at data.dol.gov.

The record in one line

OSHA has inspected Sierra Petroleum Services LTD 2 times over 1 year - more than twice a year on average. These inspections resulted in 2 violations, averaging 1.0 per inspection. Of these, 2 were classified as serious - 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, Mustang Holdings LLC in Prudhoe Bay, AK is another mining, quarrying, oil & gas employer with 2 OSHA inspections on record and $0 in current penalties.

1.0
violations per inspection
100.0%
of violations were serious

Compliance score

C 75/100
  • C OSHA safety compliance: 2 violations across 2 OSHA inspections (1.0 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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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 Sierra Petroleum Services LTD.

Frequently inspected, many findingsRarely inspected, many findingsFrequently inspected, clean recordBelow median on both1.92.022.02.0011.022.133.144.1OSHA inspectionsViolations citedNORTHEAST ENERGY MAN…, OSHA inspections: 2 · Violations cited: 5L & W FRAMING GROUP …, OSHA inspections: 2 · Violations cited: 2EVANS ENERGY DEVELOP…, OSHA inspections: 2 · Violations cited: 5SMALL MINE DEVELOPMENT, OSHA inspections: 2 · Violations cited: 3CONTINENTAL RESOURCES, OSHA inspections: 2 · Violations cited: 0COSTAR MIDSTREAM, LLC, OSHA inspections: 2 · Violations cited: 42SENDERO DRILLING COM…, OSHA inspections: 2 · Violations cited: 3C & G DRILLING COMPA…, OSHA inspections: 2 · Violations cited: 8CR BRIGGS CORPORATION, OSHA inspections: 2 · Violations cited: 104 SWIFT SERVICE, LLC, OSHA inspections: 2 · Violations cited: 4J L STOREDAHL & SONS…, OSHA inspections: 2 · Violations cited: 10A. TEICHERT & SON, I…, OSHA inspections: 2 · Violations cited: 2ROAD MACHINERY LLC, OSHA inspections: 2 · Violations cited: 1HELMERICH & PAYNE IN…, OSHA inspections: 2 · Violations cited: 0IMPAC EXPLORATION SE…, OSHA inspections: 2 · Violations cited: 0CEMEX CONSTRUCTION M…, OSHA inspections: 2 · Violations cited: 24ENERSTAR RENTALS AND…, OSHA inspections: 2 · Violations cited: 3MEWBOURNE OIL COMPANY, OSHA inspections: 2 · Violations cited: 3APACHE CORPORATION, OSHA inspections: 2 · Violations cited: 1IMPACT MATERIALS INC., OSHA inspections: 2 · Violations cited: 5Sierra Petroleum Ser…, OSHA inspections: 2 · Violations cited: 2
Sierra Petroleum Services LTD has 2 OSHA inspections on record and 2 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.

How Sierra Petroleum Services LTD Compares

Sierra Petroleum Services LTD's 1.00 violations per inspection compares to the Mining, Quarrying, Oil & Gas sector average of 3.1 violations per employer.

No OSHA penalty has been assessed against Sierra Petroleum Services LTD to date. The Mining, Quarrying, Oil & Gas sector average runs $4,539 per employer.

Enforcement detail

OSHA Inspection History

Total Inspections

2

First Inspection

2011-06-21

Last Inspection

2011-06-21

Inspection Span

1 yr

Violations / Inspection

1.0

Avg Penalty / Inspection

$0

Industry Avg / Inspection

$2,042

What this shows 2 inspections over 1 year, averaging 1.0 violations per visit. That's $0 per inspection vs. the Mining, Quarrying, Oil & Gas average of $2,042.

Enforcement detail

Violation Breakdown

2

Serious

100.0% of total

0

Willful

0.0% of total

0

Repeat

0.0% 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.

Industry Safety Context: Mining, Quarrying, Oil & Gas

How Sierra Petroleum Services LTD compares to the Mining, Quarrying, Oil & Gas sector, which has 2,294 employers tracked by PlainWorker.

Metric Sierra Petroleum Services LTD Industry Avg
Inspections 2 2.2
Violations 2 3.1
Total Penalty $0 $4,539
Avg Penalty per Inspection $0 $2,042

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

Two OSHA-record peer sets for Sierra Petroleum Services LTD, both outside CO so the neighborhoods are not geographic containment.

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

Showing 5 of 2293 other employers tracked in this sector.

Compare Sierra Petroleum Services LTD vs Mustang Holdings LLC side-by-side →

What to do with this record

Use Sierra Petroleum Services LTD's enforcement history as one data point, not the whole picture.

  • A single employer's record can look unusual in isolation. Compare Sierra Petroleum Services LTD against Mustang Holdings LLC, a similarly-sized employer in the same sector, before drawing conclusions. Compare side-by-side
  • See whether Sierra Petroleum Services LTD'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 Sierra Petroleum Services LTD safe to work at?
Based on OSHA records, Sierra Petroleum Services LTD's workplace safety record is relatively clean, with fewer violations than typical. The employer has 2 violations across 2 inspections, including 2 serious violations. Compared to Mining, Quarrying, Oil & Gas industry peers, this is below average for penalties. Review the full inspection history below for details.
How many OSHA violations does Sierra Petroleum Services LTD have?
Sierra Petroleum Services LTD has 2 OSHA violations on record, including 2 serious, 0 willful, and 0 repeat violations. The total current penalty amount is $0.
How many OSHA inspections has Sierra Petroleum Services LTD had?
Sierra Petroleum Services LTD has had 2 OSHA inspections, with the first recorded on 2011-06-21 and the most recent on 2011-06-21. This averages 1.0 violations per inspection.
What is the total penalty amount for Sierra Petroleum Services LTD?
Sierra Petroleum Services LTD has been assessed $0 in current OSHA penalties, reduced from an initial assessment of $4,080 (a 100.0% reduction).
Does Sierra Petroleum Services LTD have any serious or willful violations?
Yes. Sierra Petroleum Services LTD has 2 serious 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 Sierra Petroleum Services LTD operate in?
Sierra Petroleum Services LTD operates in the Mining, Quarrying, Oil & Gas sector (NAICS code 211111). This industry has 2,294 employers tracked by PlainWorker, with 5,098 total OSHA inspections and $10.41M in cumulative penalties.
How does Sierra Petroleum Services LTD's safety record compare to industry average?
Sierra Petroleum Services LTD's total OSHA penalty of $0 is below the Mining, Quarrying, Oil & Gas industry average of $4,539 per employer. The employer has 2 inspections compared to the industry average of 2.2 per employer. For a direct comparison, Mustang Holdings LLC in Prudhoe Bay, AK 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.