Vaca Muerta as a Real Option
The Strait of Hormuz, structural oil volatility, and the value of a foothold outside the chokepoints
At a glance
— In five months Brent traveled from US$138 to about US$70 and back to about US$79, with no change in the geography of the Strait of Hormuz. Volatility, not the level of price, is the defining feature of the cycle. — Two consecutive editions of the EIA forecast were overtaken by events in opposite directions: first by the strait's reopening, then by the resumption of hostilities on 6–8 July. — For an investor, the value of Vaca Muerta is that of a real option: an exposure whose worth rises with the volatility of the underlying, not with its price level. The central question: in a world where the chokepoint can fail recurrently, what is a foothold in a reliable source of supply outside it actually worth?
1 · The data
On 7 July the U.S. Energy Information Administration (EIA) released its July Short-Term Energy Outlook (STEO). On the assumption that June’s memorandum of understanding reopens the Strait of Hormuz, it cut its forecast sharply: Brent at US$74 per barrel in the third quarter of 2026 and US$65 in 2027, against a June average of US$85. The forecast was finalized on 1 July.
Between 6 and 8 July—after that cut-off—three commercial vessels were attacked in the strait, the United States retaliated against more than eighty targets, the Treasury reimposed sanctions on Iranian crude, and the truce was declared over. Brent moved from roughly US$73 to roughly US$79 within days. The official report, barely published, already described a world different from the one unfolding.
2 · The pattern repeats
This was not the first time. June’s Outlook, finalized on the 4th of that month, had been misaligned in the opposite direction: it assumed a closed strait and elevated Brent just as the market began to price in reopening. Within weeks, the official forecast was overtaken by events twice in a row—first by peace, then by war.
The EIA itself warns that its forecast is highly sensitive to the duration of the conflict. What the episode reveals runs deeper: the variable governing this cycle is no longer the level of price but its variance.
3 · Volatility is the regime, not the exception
In little more than four months Brent spanned a range from US$138—its 7 April peak—to about US$70 in late June, and back to about US$79 on 9 July. The geography did not change in any of those moves: close to 20% of the world’s oil, and a comparable share of liquefied natural gas, still passes through the same narrow strait.
A concentrated chokepoint does not make oil permanently more expensive (the price reverts once traffic resumes), but it injects variance into the system. Each cycle of closure and reopening transfers risk, not price level. A sixty-day agreement does not alter a systematic risk rooted in geography, that is, exposure to a common point of failure, undiversifiable by buying more of the same crude. July’s events confirm it with uncomfortable clarity. Volatility is not the accident of the cycle, it is its shape.
4 · Vaca Muerta as a real option
Argentine output reached an all-time high of 903,700 barrels per day in May 2026, with Vaca Muerta contributing roughly 69% of the total. Against world demand of some 103 million barrels per day, that is less than 1%. No producer of that scale sets or stabilizes the global price; what steadies a spike in the short run is dispatchable spare capacity, which today sits inside the Gulf itself.
The value of Vaca Muerta to an investor therefore lies not in the price at which it sells, but in the option it embeds. A real option is the right to benefit from an asset whose value grows with uncertainty. A foothold in Vaca Muerta is precisely that, an exposure that pays off exactly when the chokepoint fails again. In market terms, the relevant sensitivity is not to price (delta) but to volatility (vega). The resumption of hostilities does not improve the price at which Vaca Muerta sells its crude, still well below April, but it does raise the value of holding it, because the variance of the underlying has just gone up.
That option value rests on verifiable fundamentals, that is, a source of supply located outside the chokepoints, in a jurisdiction with a long-term investment-incentive framework and expanding export capacity. The argument is amplified in liquefied natural gas, where close to 20% of global trade likewise depends on Hormuz: there, a supplier outside the strait carries strategic weight disproportionate to its share of volume. In both cases the thesis does not rest on a directional bet on price, but on the resilience of being on the right side of the geography.
5 · Synthesis
With the strait closed, supply outside the Gulf gained value through substitution. With the strait reopened at a lower price, resilience gained value. With the strait once again under attack, the option gains value. In none of the three did the thesis depend on getting the direction of price right; it depended on variance, which is the one thing the Hormuz episode produces consistently. The right decision is not made by looking at today’s price, which has already moved three times, but at tomorrow’s option.
6 · The opposing view
The contrary position, held by the EIA itself and by several research desks, is that the market is returning to a structural state of oversupply: rising production, higher OPEC+ quotas, and Brent around US$65 in 2027. In that world, a relatively high-cost producer faces margin compression, and the optionality argument might look like an expensive consolation.
The point is sound and is conceded: if normalization holds, the margin on marginal developments compresses and export earnings fall at equal volume. The objection, however, carries its own rebuttal: the forecast underpinning the oversupply case was finalized on 1 July and was overtaken six days later. When the base case depends on a sixty-day agreement holding, oversupply ceases to be a state and becomes a scenario. And pricing an option always requires both price and variance. That, in the end, is the Atlas view: in a structurally volatile world, a foothold in Vaca Muerta is not a bet on expensive oil, but a position of resilience whose value rises precisely as the rest of the system grows more fragile.
Atlas Research · Atlas Infrastructure Partners
Sources: EIA, Short-Term Energy Outlook (July 2026); Argentine Secretariat of Energy (crude output, May 2026); international financial press (July 2026). This material is for information only and does not constitute investment advice. The military situation in the Middle East is fluid as of the date of publication.