Robuta

https://www.fortsaskatchewanrecord.com/news/provincial/alberta-wont-use-public-money-to-clean-up-abandoned-wells-energy-minister

https://www.citizen.org/news/abandoned-oil-wells-and-the-dangers-they-pose/

https://www.ndsu.edu/agriculture/extension/publications/guide-plugging-abandoned-wells

https://www.pa.gov/agencies/dep/newsroom/dep-begins-emergency-project-to-plug-abandoned-gas-wells-in-scott-township-allegheny-county