Shell has filed an $83 million lawsuit as part of a continuing dispute over who should pay for cleanup work related to a decrepit floating oil production facility off Australia’s northern coast. Multiple outlets report that the disagreement between oil and gas companies has repeatedly moved into court, and the latest action involves proceedings in Western Australia’s Supreme Court. The core issue is the bill for remediation and related cleanup responsibilities associated with the offshore asset. The reporting describes the matter as a “messy” and ongoing legal battle, indicating previous steps in the dispute and continued contest over liability and costs. The articles do not present a resolution or specific court outcome, but they frame the new filing as a further escalation in efforts by Shell to recover or allocate cleanup-related expenses. The matter is set against the broader context of legal responsibility for decommissioning and environmental remediation of offshore industrial infrastructure, with parties disputing financial responsibility in court.