A contractor pressure-washes a heat exchanger during a scheduled shutdown at Valero's Ardmore refinery. Hydrocarbons remain inside. They contact hot equipment. Fire erupts. Jesse Cole Biscamp dies two days later from severe burns. Four other contractors suffer life-altering injuries. Five lawsuits follow within weeks.

This is not random misfortune. It follows a precise sequence of failures in a system built to prevent exactly this outcome.

Workers Followed Procedures, Until They Didn't

Turnarounds shut units down for maintenance. Valero's Ardmore refinery followed the script: isolate lines, purge vessels, lock out energy sources. The crude unit's heat exchanger should have been empty and safe.

It was not.

Pressure washing released trapped hydrocarbons. They atomized into a mist. Nearby equipment—still at operating temperature—provided ignition. The result was immediate fire and explosion.

The principle is simple. Drain the line, bleed the pressure, purge with nitrogen, install blinds. Skip one step, and the vessel becomes a bomb waiting for a spark.

Five Lawsuits Filed Fast. Evidence Locked Down Immediately

Biscamp's family filed wrongful death in Harris County District Court on February 20, 2026. They name Valero Energy Corp., Valero Refining Co.-Oklahoma, and contractor UPS Industrial Services LLC.

Four injured workers, Jose M. Silva, Cesar Augusto Tamez, Rolando Garza, and Hoss Morton, filed in San Antonio district courts. Each seeks over $1 million. They allege gross negligence and premises liability.

Within days, plaintiffs secured a temporary restraining order. It freezes every piece of equipment, every document, every video at the site. Nothing moves. Nothing disappears.

That speed matters. Evidence vanishes in refinery cases when preservation orders come late.

Refineries Operate Under the Strictest Federal Rules in Industry

OSHA's Process Safety Management standard—29 CFR 1910.119—applies here. It requires:

- Written procedures for every maintenance task  
- Process hazard analysis before changes  
- Mechanical integrity inspections on every vessel  
- Hot-work permits with gas testing  
- Contractor coordination and training  

Valero owns the facility. UPS supplies the labor. Texas law lets juries decide who controlled the work site and who could have stopped the job.

Federal court often claims these cases. Diversity jurisdiction exists: Valero headquartered in San Antonio, incident in Oklahoma. Once removed, pleadings must be precise. Vague allegations of “safety failure” get dismissed. Specific allegations such as open valve, skipped purge, inadequate blinding, survive.

The Heat Exchanger Tells the Story

Shell-and-tube heat exchangers transfer heat without mixing streams. Crude flows inside tubes. Hot products flow outside. During turnaround, crews must drain, steam, nitrogen-purge, and blind every line.

If one tube leaks or one blind slips, hydrocarbons remain. Pressure washing atomizes them. Hot metal ignites the cloud.

Think of your home gas stove. Turn off the burner, bleed the line, then clean it. No one sprays cleaner while the pilot light burns. The refinery follows the same logic, on a scale of thousands of barrels per day. One procedural lapse creates the same result.

Valero's History Shows a Pattern, Not Isolated Events

The 2012 Memphis refinery rupture killed one worker and injured others. A Harris County jury returned $159 million.

Since 2020, Valero plants have collected dozens of OSHA citations and paid millions in penalties.

Ardmore is the latest chapter. The U.S. Chemical Safety Board and experts from Gexcon investigate. OSHA takes six months for its report. Families cannot wait.

Pull Records Now, County Clerks and OSHA Databases Are Public

Harris County District Clerk portal shows Biscamp's filing today. Bexar County portals list the San Antonio suits. PACER posts federal removals the same day.

OSHA inspection numbers appear in the public database once the case opens. Search by site or date. FOIA requests fill gaps quickly.

Strong cases start with documents. Demand preservation orders immediately. Detail every procedure step in the complaint. Precision wins. Vagueness loses.

The Rules Exist Because Disasters Teach Hard Lessons

Process safety redundancies, two valves, two checks, two eyes, developed after prior explosions. When one link breaks, the chain fails.

Ardmore broke on February 9, 2026. The court files now trace every link back to the people who controlled it.

Families gain power from the records themselves. They sit in public portals today. Read the work orders. See the lockout checklists. Review the gas-test results. Understand who signed off.