A month that broke the playbook
On February 27, Brent crude closed at $72.87. Three weeks and one war later, it peaked above $115. By Monday afternoon it was back below $100, a round trip of more than $40 that has left traders, hedgers, and refiners scrambling to keep up.
The latest whiplash came from a single post. President Trump wrote on Truth Social that the US would "hold off" on striking Iranian power plants for five days while talks continued. Within hours, Brent crashed 14% to $98.80, the biggest one-day drop since the Iran conflict started on February 28. WTI fell 12% to $86.99.
Two days earlier, a different Truth Social post, a 48-hour ultimatum demanding Iran reopen the Strait of Hormuz, had pushed Brent above $113.
The numbers behind the chaos
Brent's path since late February tells the story:
| Date | Brent | Move |
|---|---|---|
| Feb 27 | $72.87 | Pre-war baseline |
| Mar 1 | $78.91 | +8% after US-Israel strikes on Iran |
| Mar 6 | $92.69 | Hormuz shipping collapses 70% |
| Mar 8 | $115.89 | Intraday spike, the conflict's high |
| Mar 9 | $94.18 | -19% as G7 readied reserves |
| Mar 18 | $115.12 | Second spike after Ras Laffan attack |
| Mar 23 | $100.09 | Trump pause announcement |
Monday's session alone saw Brent swing through a $17 range before settling near $99. That kind of intraday volatility used to happen once a decade. This month it has happened three times.
Why social media posts move billions
Oil traders have always reacted to headlines. But there is something different about a president posting war-or-peace signals directly to social media, bypassing the usual chain of official statements and press conferences.
When Trump posts, the market does not wait for State Department confirmation. Algorithmic trading systems scan social media feeds and execute within milliseconds. Bank of America estimated Monday that the probability of a negotiated Hormuz reopening jumped from 15% to about 40% after Trump's pause announcement. That shift in odds alone implied roughly $15 off the barrel.
RBC Capital Markets head of commodity strategy Helima Croft was less impressed. "We've seen this movie before," she told clients, pointing to Trump's shifting tone throughout the conflict. Actual tanker traffic through the Strait of Hormuz has not changed at all despite the rhetoric.
Who gets hurt by whiplash
Volatility at this scale creates real casualties beyond the trading floor.
Airlines and trucking companies that locked in fuel hedges near $110 are now sitting on paper losses. Those that bet on prices falling and stayed unhedged through early March got crushed on the way up. There is no right answer when the range is $40 in three weeks.
Refiners face a different problem. Crack spreads, the margin between crude input costs and refined product prices, are swinging wildly because crude moves faster than gasoline and diesel prices adjust. Planning maintenance shutdowns or cargo purchases becomes guesswork.
Consumers at the pump feel the spikes but rarely see the drops as quickly. US gasoline prices jumped 11 cents overnight in early March when crude surged, according to AAA. They have been slower to retreat even as crude pulled back from the $115 peaks.
Producers struggle to plan capital spending. Shale drillers need price stability more than high prices. A company that greenlights a well at $100 oil needs to know prices will hold there for at least a year to earn a return. Right now nobody can promise that.
What happens next
The market is pricing in two conflicting stories at once. Scenario one: Trump's pause leads to real negotiations, Iran reopens the Strait, and Brent slides back toward the mid-$70s where it traded before the war. Scenario two: talks collapse, strikes resume, and oil retests the $115 highs.
Goldman Sachs split the difference Monday, raising its full-year Brent forecast to $85 from $77 and calling the Hormuz disruption "the largest supply shock in the history of the modern oil market." The bank expects prices to settle somewhere between the two extremes once the shooting stops, but warned that each presidential post can shift the entire curve by $10 or more.
For now, traders are watching one man's social media feed as closely as any inventory report or OPEC communique. The oil market has always been political. It has never been this personal.