Isn't each contract 1,000 barrels? If so, that's about $40k per contract. There something wrong here. I can see $0, or -$1-2. But almost -$40 is illogical. Something's wrong with the system.
Price is per barel. Although o e contract consists of 1000 barells. So the price is $1 for the future but you would have to pay $1000 to buy one contract. It is similar with options, alyhogh 100 pcs is standard there.