Oil Prices Plunge Nearly 10% on Strait of Hormuz Opening

Crude oil prices collapsed by nearly 10 percent on Friday, April 17, following Iran's announcement that it would reopen the Strait of Hormuz during a ceasefire, according to Rigzone. West Texas Intermediate (WTI) crude settled at $82.59, down $8.58 for the day. Brent crude fell to $90.38, a drop of $9.01.

The sharp decline was triggered by news that Iran's Foreign Minister declared the vital waterway "completely open" for commercial shipping during a 10-day ceasefire between Israel and Hezbollah, Rigzone reported. The Strait of Hormuz is a chokepoint for about a fifth of the world's oil. The market reaction was immediate, with trend-following commodity trading advisers liquidating long positions aggressively.

For Bakken operators, the price drop directly impacts the local benchmark. The Bakken crude differential to WTI was $-3.42, meaning Bakken oil is priced at a discount. With the precipitous fall in the underlying WTI price, Bakken wellhead economics have weakened significantly today, though the narrowing differential offers some relative relief.

Analysts cautioned that the situation remains fluid. Arne Lohmann Rasmussen of Global Risk Management noted the opening may only apply to vessels along the Iranian coastline, Rigzone reported. Paolo Broccardo, CEO at BankPro, said prices could remain under pressure from diplomatic hopes but are at risk of a strong rebound if talks falter, as the physical market remains tight.

The price plunge follows a period of elevated prices driven by the seven-week US-Iran conflict. Despite the drop, broader price projections remain elevated. The U.S. Energy Information Administration (EIA) raised its 2026 and 2027 fuel price forecasts in its April Short-Term Energy Outlook, citing higher crude oil prices, Rigzone reported. The EIA now expects U.S. regular gasoline to average $3.70 per gallon this year and diesel to average $4.80 per gallon.

Market sentiment reflects a rapid unwind of the geopolitical risk premium. Naeem Aslam of Zaye Capital Markets noted the pullback stems from improving Middle East stability expectations, but downside is limited by resilient demand and ongoing supply disruptions, according to Rigzone. He sees oil consolidating in a $90-$100 range for Brent.

The immediate price shock reduces near-term cash flow for Bakken producers but may alleviate some pressure on refinery and consumer demand for diesel, which the EIA forecasts to peak above $5.80 per gallon this month. Operators will monitor the durability of the ceasefire and the actual flow of tankers through the strait, as at least eight were reportedly heading towards it by late Friday.