Forgotten oil and gas wells linger, leaking toxic chemicals

Ashley Williams Watt walks near a wellhead and flowline at her ranch, on Jul 9, 2021, near Crane, Texas. CRANE, Texas: Rusted pipes litter the sandy fields of Ashley Williams Watt’s cattle ranch in windswept West Texas. Corroded skeletons are all that remain of hundreds of abandoned oil wells. Unable to produce any useful amounts of oil or gas, the wells were plugged with cement decades ago.

Regulators don’t know where hundreds of thousands of abandoned wells are because many were drilled before modern record-keeping and plugging rules were established. They are a silent menace, threatening to explode or contaminate drinking water. Representatives for Chevron said the company is committed to re-plugging the two wells that recently sprang leaks.

Pennsylvania has located roughly 8,700 orphaned wells, mostly unplugged. Yet based on historical photos and surveys, Pennsylvania estimates between 100,000 and 560,000 additional unplugged wells around the state.

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