Gas is traded all of the same 42,000-gallon (1000 barrels) contract size as heating oil. It's also traded in dollar and cents, 500kw diesel generator when the marketplace is trading at $2.00/gl, the contract will possess a value of $84,000 ($2.00 x 42,000 gal = $84,000). For example rest with the energies, this can be a high dollar value contract and is quit...