An excess insurer says it learned of a catastrophic gas explosion more than two years after a home was destroyed, now seeking to deny coverage.
Scottsdale Insurance Company filed suit in federal court in Missouri on November 13, 2025, seeking to avoid covering claims from a 2022 gas explosion that damaged multiple homes after a contractor's excavation equipment ruptured an underground gas line.
The insurer argues it never received notice of the March 1, 2022 incident until November 20, 2024—a delay it says violates fundamental notice requirements and triggers multiple policy exclusions.
According to court filings, the incident unfolded when JDK General Contractor was hired as a subcontractor to drill for the installation of fiberoptic cable in the Annabrook Subdivision in O'Fallon, Missouri. While excavating, the company's mechanical equipment allegedly struck and damaged an underground natural gas pipe.
Gas escaped from the damaged pipe and migrated into a nearby home on Millers Court owned by John and Judith Cornelius. The gas filled the residence, which then exploded, causing damage to several surrounding properties. Those homes were insured by Safeco Insurance Company of America and American Family Insurance Company.
The primary insurer, Western World Insurance Company, received initial claims just two days after the explosion, on March 3, 2022. By April 25, 2022, homeowner Kenneth Stout sent a settlement demand asserting over $1.3 million in damages—already exceeding Western World's $1 million policy limit.
Western World responded by filing an interpleader action in state court in June 2022, asking a judge to determine how its $1 million should be divided among multiple claimants. The insurer deposited those funds in January 2025, and they were distributed to claimants in June 2025.
Meanwhile, lawsuits mounted. American Family, acting as assignee for the Corneliuses, filed suit in April 2023 seeking more than $500,000 for damage to their home. American Family Insurance Company, as assignee of Joseph and Michelle VanMeter, intervened in that lawsuit, claiming damage to their home as well. In September 2024, the Stouts filed separately, demanding over $1.5 million plus punitive damages.
Yet Scottsdale—which issued a $1 million excess liability policy to JDK General effective October 24, 2021 to October 24, 2022—says it heard nothing about any of this until late 2024, after the primary policy limit had been exhausted and distributed.
The excess policy was designed to follow the terms of Western World's primary coverage. Scottsdale now argues that the delay forfeits any claim to coverage.
The insurer raised five defenses in its filing. First, it contends the two-year notification delay breaches policy language requiring the insured to see to it that Scottsdale is notified "as soon as practicable" of any event that may result in a claim.
Second, Scottsdale points to an "underground property damage hazard" exclusion in the underlying Western World policy. That provision bars coverage for damage to underground infrastructure—including pipes, conduits, mains, sewers, and tanks—caused by mechanical equipment during excavating, along with any resulting property damage to other property.
Third, the insurer invokes an "explosion hazard" exclusion that eliminates coverage for property damage arising out of blasting or explosion, except for damage from the explosion of air or steam vessels, piping under pressure, prime movers, machinery, or power transmitting equipment.
Fourth, Scottsdale seeks a ruling that it owes nothing for punitive damages, which the Stouts are pursuing. The policy explicitly excludes coverage for punitive or exemplary damages.
Finally, the insurer argues that two other defendants—Sellenriek Construction and Gateway Fiber—are not covered under its policy at all, as neither qualifies as an insured under the Scottsdale or Western World policies.
The case illustrates the complications that can arise when losses outstrip primary coverage and excess carriers are left uninformed. Whether Scottsdale's arguments prevail will hinge on how the court interprets notice obligations, the application of coverage exclusions, and the duties owed up the insurance tower.
No final determination has been made.
