GeekGold Bonus for All Supporters: 57.75
26.4% of Goal | 29 Days Left
The January 2013 issue of Harper's Magazine in the Readings section, under "Greenhouse Rules," it has the following:
From the instruction manual for Catan: Oil Springs, a scenario-expansion kit for the board game The Settlers of Catan. Developed by the Worldwatch Institute and the game’s manufacturers, the scenario was introduced in October 2011 at a gaming convention in Essen, Germany. A “hex” is a hexagonal territory of the game board.
and then quotes from the rules for this expansion.