Game description from the publisher:

In Catan Scenarios: Oil Springs settlers arriving on Catan will cry "Eureka!" as they discover black gold on the island for the first time. This resource brings great opportunity but also danger to the intrepid settlers as they make their mark on the island, claiming it for their own.

First, the good news: Oil can increase resource yields and allow a settlement to grow much faster than normal. The bad news is that players need to monitor the damage their oil use does to the environment and will eventually have to contend with glo ...