Oil. It takes millions of years to create and seconds to burn. It’s known as ‘black gold’ and its use dates back to as early as 3000 BC, when Babylonians would use it as mortar in construction and to waterproof their boats. Oil is one of the foundations of the modern world, and today it’s the mortar of our entire economy. Here, we develop its fascinating history further and take OIL as “Optimally Improved Ledger“ to the next level by creating the world’s prime decentralized cryptocurrency based on Bitcoin’s blockchain technology.