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Oil & Gas Contractor Insurance Checklist: Required Coverages and Limits

Bramble·March 23, 2026·5 min read

The tables below provide a structured reference for reviewing oilfield contractor COIs against typical MSA requirements. Use this as a starting framework - your specific MSA insurance exhibit governs, and requirements vary by operator, asset type, contractor scope, and jurisdiction.

For each contractor, work through each section in order. A single gap in a required coverage or endorsement is grounds to withhold site access until remediated.

Section 1: Core Coverage Limits Checklist

OILFIELD COI REVIEW PROCESS
01
Core Coverage Limits
02
O&G-Specific Coverage
03
Endorsement Verification
04
Administrative Checks

General Liability

Requirement Standard Operations High-Risk / Subsurface COI Shows Compliant?
Each occurrence $1,000,000 $2,000,000 ___
General aggregate $2,000,000 $4,000,000 ___
Products/completed operations $2,000,000 $4,000,000 ___
Personal/advertising injury $1,000,000 $2,000,000 ___
XCU exclusions removed Required Required Confirm separately

Automobile Liability

Requirement Minimum COI Shows Compliant?
Combined single limit $1,000,000 ___
All autos (scheduled, hired, non-owned) Required ___

Workers' Compensation and Employers' Liability

Requirement Minimum COI Shows Compliant?
Workers' compensation Statutory (all states of ops) ___
All States endorsement Required for multi-state ___
Employers' liability - each accident $1,000,000 ___
Employers' liability - policy limit $1,000,000 ___
Employers' liability - each employee $1,000,000 ___
USL&H (if maritime exposure) Required ___
Jones Act (if seamen) Required ___

Pollution Liability

Requirement Standard High-Exposure / Remediation Verified?
Per occurrence limit $1,000,000-$2,000,000 $5,000,000
Policy form (occurrence vs. claims-made) Confirm Confirm
Retroactive date (claims-made) On or before work start On or before work start
Extended reporting period available Confirm Confirm
Hydrocarbons covered Confirm Confirm
Produced water / drilling fluids covered Confirm Confirm
Third-party BI/PD included Confirm Confirm
Cleanup costs included Confirm Confirm

Control of Well (Subsurface Operations)

Requirement Minimum COI Shows Compliant?
Re-drilling and control costs $5,000,000-$10,000,000 ___
Seepage, pollution, contamination Included ___
Third-party liability Included ___
Territory matches operating location Confirm ___

Umbrella / Excess Liability

Requirement Standard Subsurface / High-Risk Verified?
Per occurrence $5,000,000 $10,000,000-$25,000,000
Aggregate $5,000,000 $10,000,000-$25,000,000
Follows form over GL Required Required
Follows form over auto Required Required
Follows form over employers' liability Required Required
Pollution exclusion present? Must not be excluded Must not be excluded
Self-insured retention Note any SIR Note any SIR

Professional Liability (Engineering / Consulting)

Requirement Minimum COI Shows Compliant?
Per claim $1,000,000 ___
Aggregate $2,000,000 ___
Retroactive date Confirm ___

Section 2: Endorsement Verification Checklist

Endorsement Required On Verification Method Status
Additional Insured (Operator) GL, auto, umbrella Confirm with insurer
Additional Insured (Pollution) Pollution policy Confirm with pollution insurer
Additional Insured (JV partners, as applicable) GL, auto, umbrella Confirm with insurer
Primary / Non-Contributory GL at minimum Request endorsement form
Waiver of Subrogation All policies including WC Confirm with insurer
XCU Exclusions Removed GL GL declarations or agent letter
Cross-Liability / Severability GL Confirm with agent
30-Day Cancellation Notice All policies Confirm policy provision
MCS-90 (if interstate carrier) Auto COI description field + agent

Section 3: Administrative and Policy Verification

Item Check Status
Named insured matches MSA contracting entity Exact legal match
All required entities listed as additional insured Per MSA requirements
Policy effective dates confirmed with insurer Not just COI date
Insurer AM Best rating A- or better Verify at ambest.com
Renewal calendar entry created 60-day advance request
Pollution retroactive date confirmed On or before work start
Umbrella declarations reviewed for exclusions If required by MSA
COI requested from agent directly (not carrier) Direct agent submission
Review documented with date and reviewer For audit trail

Section 4: Contractor Category Quick Reference

Contractor Type Essential Coverage Not to Miss
Drilling contractor Control of well (calibrated to well), XCU removal, umbrella $10M+
Completion / frac Pollution $2M+ (occurrence preferred), control of well, XCU
Wireline / well services Control of well, XCU, umbrella follow-form over pollution
Pipeline construction GL XCU removal, pollution, builders risk if applicable
Electrical / instrumentation GL, auto, WC; lower umbrella acceptable
Environmental / remediation Occurrence-form pollution $5M+, cleanup costs specifically covered
Consulting / engineering Professional liability with appropriate retroactive date
Catering / support GL, auto, WC; verify limits are in force

Red Flags That Require Immediate Escalation

  • Named insured on COI does not match MSA contracting entity
  • Pollution policy is claims-made with retroactive date after work start
  • Umbrella policy excludes pollution events
  • XCU exclusion removal not confirmed for subsurface or hazardous work
  • Any required coverage type absent from COI
  • Any limit below MSA minimum - even by $1
  • Insurer rated below A- by AM Best
  • Agent cannot confirm endorsements within 48 hours

Frequently Asked Questions

Can I use this checklist for every oil and gas contractor? This checklist covers the most common requirements in upstream oil and gas MSAs. Your specific MSA may require higher limits, additional coverages, or different endorsement language. Always use your actual MSA insurance exhibit as the governing document.

How do I track which contractors have completed each step? At scale, a compliance platform provides dashboards showing per-contractor, per-coverage compliance status. For smaller programs, a spreadsheet tracking each checklist item by contractor and date of last verification is a minimum viable approach.

What if a contractor provides a COI that satisfies the checklist but the insurer is poorly rated? AM Best rating below A- is a material risk factor. Even if limits are technically compliant, a financially unstable insurer may deny claims or be unable to pay them. Require A- or better as a precondition of approval.

How often does an oilfield contractor need to provide a new COI? At minimum annually, aligned with policy renewals. Also required when a contractor begins work on a new asset, when scope of work changes materially, and any time a policy is cancelled or replaced.


This checklist is a tool, not a substitute for the MSA. Use it in conjunction with the governing contract to ensure every contractor on your assets meets your actual requirements.

See how Bramble automates this checklist for Oil & Gas operators or learn how contract vs. COI comparison works.

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