Due to a massive meteor impact several millions of years ago, the land inside the Siljan Ring is rich in resources and potentially oil in the lower layers. This was known by petroleum companies as far back as the late 19th-century. Many locals were hired to drill for oil in various places inside the crater. This was a physically demanding, but lucrative job. It’s said it wasn’t uncommon for drillers to pour kerosene in their boreholes to keep up the hopes of the company. However, nothing substantial was found and…
