I work on words quite separately to music. They're both ongoing and I don't ever feel like I'm working in a cycle in that respect because it's every day anyway no matter what I'm doing. Then I get to a point when I've collected together enough words that seem like they want to be songs rather than poems or sometimes not.
Like any business the oil industry runs on the basic premise of supply and demand. The more supply - the lower the price. The higher the demand - the higher price. In other words the more people who can buy oil the higher the price of oil.