A new report warns that thousands of idle oil wells across Illinois could saddle taxpayers with over $1 billion in cleanup costs if not properly addressed. The research, from Northwestern University’s Bluhm Legal Clinic and ClientEarth USA, highlights that most of Illinois’s 30,000+ oil and gas wells are either inactive or producing very little, yet remain unplugged and risk leaking toxic pollutants into air and water supplies.
Illinois’s oil industry, which peaked in the 1940s, has been in decline for decades. While more than 23,000 wells are officially listed as active, most yield less than 1.5 barrels per day. The state’s lack of reliable data makes it difficult to track well status or ensure proper closure.
Although state law requires operators to plug and clean up wells, the report criticizes weak enforcement and low bonding requirements that don’t cover true remediation costs. Some operators can indefinitely delay plugging wells or transfer permits to avoid responsibility, leaving the state to handle the expense.
The Illinois Department of Natural Resources (IDNR) says new federal funding is helping to plug more wells, but the report urges stricter regulations and enforcement to prevent the financial burden from falling on taxpayers. The Illinois Petroleum Resources Board declined to comment on the report.