The Oil Museum of Canada sits a short drive south of Petrolia, on the site of James Miller Williams's 1858 well — North America's first commercial oil well. It's a National Historic Site, with original equipment, restored working derricks, and exhibits on the international diaspora of Petrolia oilmen.
Outside, an active jerker-line pump system — a 19th-century technology unique to this field — still draws oil from shallow wells, using rocker arms connected by long wooden rods. It's the only place in the world this technique still operates commercially.