The Commodity Futures Trading Commission released an interim staff report in late 2020 examining trading in the NYMEX WTI Crude Oil Futures Contract in the days leading up to and on April 20, 2020. That date marks something without modern precedent: a crude oil contract that fell from $17 per barrel to deeply negative territory — meaning sellers were paying buyers to take the oil off their hands.

The CFTC's November 2020 press release focused on the mechanics of the May 2020 contract expiration, specifically how a contract backed by physical delivery into Cushing, Oklahoma collapsed as storage capacity ran out. The interim report itself provides the most detailed regulatory account available of what broke down in the trading system that day.

What Happened at Expiration

April 20 was the final trading day for the May 2020 WTI contract. Anyone holding a long position — meaning they had agreed to buy oil — faced a blunt choice: sell at whatever price the market offered, or accept physical delivery of barrels they had no place to store.

For financial investors who had bought exposure through ETFs or short-dated strategies, this was not a theoretical problem. It was immediate and real. WTI contracts require actual delivery in Cushing, and by mid-April storage tanks there were nearly full. That physical shortage, combined with a rush of forced sellers in the final hour of trading, drove the May contract to minus $37.63 per barrel at settlement — a figure that the exchange's computer systems had not been programmed to handle.

The CFTC examined trading patterns across the entire lead-up period, not just the settlement day itself. The question was straightforward: did the price collapse reflect genuine market stress, or did positioning patterns suggest something warranted closer scrutiny? The report carries the label "interim," which signals that enforcement referrals or further investigation remain possible.

Why This Matters for How Markets Are Built

The April 2020 event exposed assumptions baked into how futures contracts are designed. Two stood out: that financial traders could always exit before expiration at reasonable prices, and that a physically settled contract would naturally reflect real supply and demand. Both broke simultaneously when demand collapsed, supply piled up, and storage evaporated.

CME Group, which operates NYMEX, changed its systems afterward to accommodate negative prices — a shift that rippled through clearing, margin calculations, and options pricing models across the industry. Most options pricing systems rely on a mathematical framework (Black-Scholes) that assumes prices cannot go below zero; the May 2020 event forced traders and risk managers to rethink that assumption for energy derivatives.

The regulatory question running through the CFTC's work is whether market structure itself amplified the damage. Did ETF roll schedules (the timing of when funds shift from expiring contracts to newer ones) concentrate selling? Did speculative positioning make the move worse? Was delivery infrastructure simply inadequate? Or was April 20 simply the unavoidable collision of an unprecedented physical market squeeze with a contract that allowed no flexibility in where delivery happens? The answer shapes how regulators think about position limits, where contracts allow delivery, and whether some benchmarks should settle financially rather than physically.

As of now, no final version of the report has been released, making it the most complete official account of one of the structurally most significant days in commodity derivatives history.