Fidelity Oil United Reserve (FOUR) is a Solana-based token built around an oil-reserve meme narrative, not a verified petroleum-backed asset. The project has gained attention because it combines commodity language, on-chain trading, and official-sounding branding that can attract speculative traders quickly. This guide explains what FOUR is, why oil-themed tokens are trending, what risks WEEX users should check, and how beginners can separate a market story from verified asset backing.