Degerative Finance is an innovative series of DeFi derivatives jointly developed by Yam Finance and UMA project parties. uGas is an Ethereum Gas fee futures contract, and uGAS is a synthetic token integrated with this contract. Each uGAS token will be named after the expiration month of the futures contract. For example, the uGAS-JAN21 futures contract token means that the uGas contract will expire at the end of January 2021, that is, at 0:00 on February 1. (UTC time). When the uGas contract expires, it will be settled according to the median Gas price of all transactions on the Ethereum network in the past 30 days. Each uGAS futures contract token represents 1 million Gas. Therefore, if the 30-day median Gas price is 70Gwei, the price of each uGAS futures contract token is 0.07ETH.