The Clyde apartment complex owners in Oak Cliff have filed a lawsuit against Atmos Energy, alleging the gas pipeline was improperly marked and that Atmos failed to respond swiftly after being notified of an active gas leak, ultimately causing the May 28 explosion that killed three people. The suit asserts Atmos’s knowledge since at least 2004 about vulnerabilities in its polyethylene system and argues the company cannot shift blame for its non-delegable duties. Atmos has responded by stating it is cooperating with investigations and that it hired a contractor to locate and mark lines, noting that the specific line involved had not been marked according to preliminary NTSB findings. The litigation is part of a broader wave of suits following the blast, with other filings challenging marking practices and the company’s duty to inspect and maintain pipelines. A Dallas judge previously ordered Atmos to preserve evidence related to the investigation, as authorities assess the cause of the incident. The case is being reported across multiple outlets, reflecting ongoing legal and regulatory scrutiny surrounding the disaster.