In a market like crude oil, price of product is based upon supply and demand, not cost plus expenses. If oil sells for $70 a barrel, it doesn't mater if it cost you $10 to bring it to market or $50. Nobody will pay more because the producer paid more. The commodity is fungible.
What taxes like this do is encourage producers to invest their capital somewhere else like Russia. There they can make more money from their investment. But then the US doesn't get the taxes and royalty payments.