This campaign launched in 2002 called for extractive companies to make their payments to governments public. Since an exclusive focus on revenues was not enough to ensure good management of natural resources wealth, the initiative widened its scope to also cover transparency and accountability at all points in the value chain. It is now structured around three pillars: 1) Publish why you pay and how you extract; 2) Publish what you pay; and 3) Publish what you earn and how you spend.