As societies grow decadent the language grows decadent too. Words are used to disguise not to illuminate action: you liberate a city by destroying it. Words are to confuse so that at election time people will solemnly vote against their own interests.
America is false to the past false to the present and solemnly binds herself to be false to the future.
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.