Louisiana Plant and Refinery Accident Lawyers

Morris & Dewett has handled industrial injury cases for 25 years.

Louisiana’s Refinery Industry and Why These Cases Are Different

Louisiana is one of the most concentrated petrochemical states in the country. The Baton Rouge industrial corridor runs from ExxonMobil’s Baton Rouge complex through Shell Norco, Honeywell Baton Rouge, and BASF Geismar. Lake Charles hosts Citgo Lake Charles, Westlake Chemical, and Sasol Lake Charles. The New Orleans and St. Charles corridor includes Valero St. Charles and the Shell Norco complex. These facilities employ thousands of workers, most of whom are not employed directly by the operating company.

That employment structure is the foundation of refinery tort law. At any given time, a refinery or plant has workers from the operating company, turnaround and maintenance contractors, specialty subcontractors, and equipment vendors on site. When an incident occurs, the legal question is not just whether someone was negligent. The question is which party’s negligence caused the incident and whether that party can be sued in tort.

Workers’ compensation exclusivity generally bars a lawsuit against your own employer. It does not bar a lawsuit against the contractor who brought defective equipment onto the job, the turnaround company whose employee violated a hot work permit, or the engineering firm that designed a pressure relief system that failed. Those third-party claims are separate from workers’ comp and carry no cap on pain-and-suffering damages.

Types of Incidents: Explosions, Fires, and Chemical Releases

Refinery and plant incidents follow recognizable patterns. Understanding the type of incident matters because it shapes who is liable and what evidence to preserve.

Vapor Cloud and Pressure Vessel Events

VCE

Vapor Cloud Explosion. An unconfined explosion caused when a flammable gas or vapor cloud finds an ignition source. The resulting overpressure wave can cause structural collapse and bodily injury across a wide radius.

A VCE occurs when a flammable gas or liquid release disperses into a vapor cloud that then finds an ignition source. The overpressure wave causes structural damage and bodily injury far from the release point. Blast pressure injuries, flying debris, and secondary fires are all common results. The causation question focuses on what caused the initial release: a pipe failure, a valve malfunction, a maintenance error, or a flawed process change.

BLEVE

Boiling Liquid Expanding Vapor Explosion. Occurs when a pressurized vessel containing superheated liquid (LPG, propane, butane) fails catastrophically. The result is a fireball and pressure wave. BLEVEs are particularly destructive because they combine thermal and blast injuries.

A BLEVE is a specific type of pressure vessel failure involving superheated liquids. LPG storage, propane vessels, and butane units are common sources. When the vessel fails, the liquid flashes to vapor instantly and ignites. Anyone in the fireball radius sustains thermal injury. The pressure wave causes structural and blast injuries at a wider radius.

Flash fires differ from explosions. A flash fire occurs when a flammable vapor cloud ignites without detonation. There is no pressure wave, but anyone inside the flammable envelope sustains severe thermal burns. The primary cause is typically an uncontrolled release from a flange, valve, pump seal, or pipe connection.

Chemical Releases

H2S

Hydrogen Sulfide. A colorless gas heavier than air that accumulates in low-lying areas and confined spaces. Detectable by smell at low concentrations but paralyzes the olfactory nerve at high concentrations, eliminating the warning smell. Rapidly fatal at concentrations above 300 ppm.

Chemical releases at Louisiana plants involve some of the most hazardous substances in industrial use. Hydrogen fluoride (HF) acid is present in alkylation units at refineries throughout Louisiana. Ammonia is used in refrigeration systems and reacts explosively with certain other chemicals. Benzene is a known human carcinogen present in crude oil and a component of several refining streams. H2S is present in virtually every crude oil refining and natural gas processing operation. Nitrogen asphyxiation in confined spaces is a frequent cause of death at plants where nitrogen is used as a purge or blanketing gas.

Each of these substances has specific regulatory handling requirements. Failures to implement those requirements are the evidence base for third-party chemical supplier, operating company, or contractor liability. Baton Rouge General and other hospitals in the industrial corridor maintain specialized decontamination and toxicology protocols specifically for these exposures.

Hot work permit violations are a separate and recurring cause of refinery fires and explosions. Hot work (welding, cutting, grinding) without proper atmospheric testing is negligence per se under OSHA PSM regulations. If a contractor performed cutting or welding without verifying the area was gas-free, and a fire resulted, the contractor’s failure to follow the hot work permit system is a direct liability basis.

Who Is Liable: Third-Party Defendants in Refinery Cases

Liability in a refinery incident is rarely limited to one party. Louisiana follows a system of comparative fault under which multiple parties can be assigned fault percentages, and each defendant pays according to their share.

Turnaround and Maintenance Contractors

Refineries and plants schedule periodic shutdowns called turnarounds to perform maintenance, inspections, and equipment replacement. During a turnaround, the facility employs far more workers than during normal operations, most of them from outside contractors. Turnaround contractors are responsible for the safety of their own crews and for the work procedures their employees follow.

If a turnaround contractor’s employee failed to gas-free a line before cutting, failed to use proper lockout/tagout, or ignored a permit requirement, that contractor is liable in tort to anyone injured as a result. This liability exists even if the injured worker is employed by a different company on the same job. The contractor’s duty of care runs to all workers in the area, not just its own employees.

Equipment Manufacturers and Product Defects

Pressure relief valves, heat exchangers, control systems, and instrumentation can fail due to design defect or manufacturing defect. Under the Louisiana Products Liability Act (La. R.S. 9:2800.54), a manufacturer is liable if a product is unreasonably dangerous in construction, design, or due to inadequate warning. Strict liability applies to product claims. You do not need to prove the manufacturer was careless, only that the product was defective.

Common product claims in refinery cases include pressure relief valves that failed to open at rated pressure, heat exchangers with tube bundle defects that allowed cross-contamination between process streams, and electronic safety systems that failed to activate automated shutdowns.

Engineering and Design Firms

Front-end engineering design (FEED) firms and detailed engineering firms that designed inadequate pressure relief systems, specified incorrect materials for service conditions, or produced flawed piping designs can be liable for design defect under both Louisiana Products Liability Act theories and general negligence. If the root cause of your incident traces to an engineering error, the engineering firm that made it carries liability.

Chemical Suppliers

Suppliers of reactive or hazardous chemicals have a duty to properly label their products, provide accurate safety data sheets, and warn of known hazards specific to the conditions of use. Failures in labeling, inadequate warning of reactive hazards, or supplying a chemical with off-specification properties can support a third-party claim against the supplier. The Louisiana Products Liability Act governs these claims.

Federal and State Safety Standards as the Negligence Benchmark

The regulations governing refinery safety are detailed and prescriptive. Violations of those regulations by a third-party defendant are evidence of negligence. In many cases they satisfy negligence per se.

OSHA’s Process Safety Management standard (29 C.F.R. 1910.119) applies to any process that uses threshold quantities of highly hazardous chemicals. PSM requires written operating procedures, mechanical integrity inspection programs, hot work permit systems, Management of Change documentation, and written incident investigation following any near-miss or incident. A defendant who violated any of these requirements has violated a federal safety standard. That violation is direct evidence of negligence.

RAGAGEP

Recognized and Generally Accepted Good Engineering Practices. The body of industry standards — API, ASME, NFPA, AIChE — that PSM requires facilities to follow for equipment design, inspection, testing, and maintenance. Departure from RAGAGEP is a recognized negligence standard in refinery and plant litigation.

RAGAGEP is the standard PSM requires facilities to apply. It includes American Petroleum Institute (API) standards for inspection and equipment integrity, American Society of Mechanical Engineers (ASME) codes for pressure vessels, and National Fire Protection Association (NFPA) standards for fire and explosion prevention. When a defendant departed from RAGAGEP, your attorney can establish a specific standard of care and show precisely how the defendant fell short of it.

The EPA Risk Management Program (40 C.F.R. Part 68) requires covered facilities to analyze worst-case release scenarios and implement prevention programs. Louisiana OSHA (LOSH) administers state-level workplace safety regulations, and LOSH citations are admissible evidence of negligence in civil claims. The U.S. Chemical Safety and Hazard Investigation Board (CSB) investigates major industrial incidents and publishes detailed reports that are frequently used in litigation. The CSB investigated multiple Louisiana incidents, including explosions at the Dow Plaquemine facility in Iberville Parish in 2023.

The Louisiana Oilfield Anti-Indemnity Act and Its Effect on Your Claim

La. R.S. 9:2780, the Louisiana Oilfield Anti-Indemnity Act (LOIA), is a statute that directly affects how fault and financial responsibility are allocated in multi-party industrial cases.

Operating companies and contractors routinely include broad indemnity clauses in master service agreements. These clauses often require the contractor to indemnify the operating company even for the operating company’s own negligence. LOIA voids those clauses. When LOIA applies, the operating company cannot use contractual language to shift its liability to a smaller contractor and walk away from the case.

The practical consequence is that the operating company remains exposed for its own negligent acts regardless of what the contract says. In a case where both the operating company and a contractor contributed to the incident, LOIA prevents the operating company from using indemnity language to reduce the pool of recovery available to you. It also prevents a contractor from using indemnity language to push liability back to you.

LOIA litigation requires an attorney who reads master service agreements carefully and knows which clauses LOIA voids and which it does not.

Evidence in Plant and Refinery Cases

Evidence in refinery cases is technical, voluminous, and perishable. The most important evidence must be preserved immediately.

DCS

Distributed Control System. The computerized process control system at a refinery or plant that monitors and controls process conditions in real time. DCS data and alarm historian logs record process conditions in the minutes before and after an incident. This data can be overwritten or deleted on normal maintenance cycles if a litigation hold is not issued promptly.

Send a litigation hold letter to all potential defendants as soon as possible after the incident. DCS data and alarm historian logs record process conditions at the time of the incident. Those records can be overwritten within days or weeks on normal system maintenance cycles. Incident investigation reports, which OSHA PSM requires to be prepared within 48 hours of any incident, are primary evidence of what the responsible parties believed went wrong.

PHA

Process Hazard Analysis. A structured review of process hazards conducted under OSHA PSM. Also called a HAZOP (Hazard and Operability Study). The PHA documents what hazards the facility identified, what safeguards were put in place, and whether those safeguards were actually implemented. It is key evidence in refinery litigation because it shows what the facility knew about the risk before the incident.

The PHA and mechanical integrity records tell you what the facility knew about its own hazards. Mechanical integrity inspection records (thickness measurements, corrosion logs, repair histories) show whether the facility was actually performing the inspections its PSM program required. Gaps in those records support failure-to-maintain theories.

Management of Change documentation and hot work permit logs round out the documentary evidence base. Expert witnesses in refinery cases include process safety engineers, mechanical integrity specialists, explosion dynamics and fire investigation experts, and toxicologists. These cases require multiple experts working together.

Morris & Dewett retains process safety experts and explosion dynamics specialists on refinery and plant cases.

Louisiana Tort Reform and Industrial Injury Deadlines

Two legal deadlines govern your refinery or plant injury claim in Louisiana.

Prescriptive Period

Louisiana’s term for the statute of limitations. The legal deadline to file a lawsuit. Missing this deadline forfeits your right to recover, regardless of how strong your case is.

The Prescriptive Period for personal injury is two years from the date of injury under La. C.C. Art. 3493.1, which became effective July 1, 2024. Wrongful death claims carry a two-year prescriptive period from the date of death. This is a hard deadline. Missing it forfeits your right to recover regardless of how strong your case is.

Comparative Fault

A legal rule under La. C.C. Art. 2323 (effective January 1, 2026) that reduces your recovery by your percentage of fault. If you are 51% or more at fault, you recover nothing. If you are 50% or less at fault, your damages are reduced proportionally. For example, if your total damages are $1,000,000 and you are found 20% at fault, you recover $800,000.

Louisiana’s Comparative Fault rule under La. C.C. Art. 2323, as amended effective January 1, 2026, applies a 51% bar. If you are 51% or more at fault, you recover nothing. Below 51%, your damages are reduced by your fault percentage.

In multi-party refinery cases, defendants routinely try to push your fault percentage above 50%. They argue you removed PPE, failed to comply with a permit requirement, or deviated from a procedure. This is why establishing what each party was required to do under PSM and RAGAGEP matters. Your attorney must be prepared to rebut comparative fault arguments with specific regulatory standards showing what the defendant was required to do and failed to do.

The workers’ comp exclusivity rule in Louisiana bars a tort claim against your direct employer. It does not bar a tort claim against a third party. The threshold question is whether the defendant qualifies as your statutory employer under Louisiana law. An attorney evaluating your case must analyze that question before concluding that any particular defendant is immune from suit.

Wrongful Death and Survival Actions

When a worker is killed in a refinery explosion, fire, or chemical release, two legally distinct claims exist under Louisiana law and can be pursued simultaneously.

A survival action under La. C.C. Art. 2315.1 recovers the victim’s own damages between injury and death. This includes pain and suffering during any period of survival, medical expenses, and lost wages during that period. It is brought by the estate.

A wrongful death action under La. C.C. Art. 2315.2 recovers the family’s own damages. These include loss of financial support, loss of companionship and love, and funeral and burial expenses. Louisiana law specifies who can bring this claim: surviving spouse and children first, then parents, then siblings. A higher-priority claimant’s existence bars lower-priority claimants.

Both actions are brought against the same third-party defendants. Neither is limited by workers’ compensation because workers’ comp does not apply to third-party tort claims. Read more about how wrongful death claims work at our wrongful death claims page. The Louisiana industrial injury lawyers page covers the broader industrial injury practice context.