The published thesis identified the Strait of Hormuz closure as Iran’s strongest remaining card — and documented its costs to Americans in Chapter 10. Gas prices have risen thirty-eight percent since the war began. Diesel has climbed forty-nine percent. The Joint Economic Committee’s Democratic minority estimates $8.4 billion in additional costs at the pump. The IEA described the disruption as “the greatest global energy security challenge in history.”

What the thesis did not explicitly state is the mechanism by which the United States insulates itself from this shock — and converts it from a vulnerability into leverage. The pieces are already in the published text. This addendum connects them.

The Physical Supply Equation

The United States produces approximately 13.6 million barrels of crude oil per day, according to the Energy Information Administration’s March 2026 Short-Term Energy Outlook. US consumption is approximately 20 million barrels per day. The gap — roughly 6 million barrels — is filled by imports, primarily from Canada and, increasingly, from Venezuela.

Chapter 4 documented that the United States seized control of Venezuelan oil flows on January 3, 2026. Venezuela currently produces approximately one million barrels per day, with the EIA projecting up to a twenty percent increase in coming months as US-authorized investment begins to restore degraded infrastructure. The January 29 hydrocarbon reform — passed by the successor government under US supervision — opened production to private and foreign companies for the first time since the Chávez-era nationalization. The State Department confirmed in February that licenses had been issued for exploration, production, and the import of diluent essential for processing Venezuela’s heavy crude.

The critical fact Chapter 4 established but did not extend to its energy implications: Venezuelan heavy, sour crude is the optimal feedstock for US Gulf Coast refineries. As CNN reported in January 2026, most US refineries were constructed to process Venezuelan oil, and they operate significantly more efficiently on Venezuelan crude than on American light sweet crude. The US does not merely have access to Venezuelan oil. It has the refinery infrastructure specifically designed for it.

Combined with Canadian heavy crude imports — which flow through established pipeline infrastructure — the United States possesses physical access to sufficient crude oil volume and type to meet its domestic refining needs without any oil transiting the Strait of Hormuz.

The Price Transmission Problem — And Its Solution

Physical supply adequacy does not automatically translate into price insulation. The thesis’s Chapter 10 documented that American gas prices have risen sharply despite record domestic production. The reason is structural: the United States participates in the global oil market. US crude is priced on global benchmarks — West Texas Intermediate and Brent. When global supply drops by twenty percent due to the Hormuz closure, global prices rise, and US prices rise with them regardless of domestic production levels. As Poynter’s fact-check noted in March, even if the US could fulfill its crude oil needs domestically, participation in the global market means Americans still feel the pain.

The solution is export restrictions on US crude oil. Media reports from Columbia University’s Center on Global Energy Policy confirmed in March 2026 that the Trump administration is considering restrictions on US oil exports. If implemented, this step completes the insulation architecture. Restricting exports decouples the domestic price from the global benchmark. US-produced and US-controlled oil stays in the US market, priced by domestic supply and demand rather than by the Hormuz-disrupted global market. American refineries run on the crude they were built for — Venezuelan heavy and domestic light — at prices determined by hemispheric supply, not by a strait Iran controls eight thousand miles away.

From Vulnerability to Leverage

The insulation mechanism does more than protect Americans from gas price shocks. It inverts the strategic geometry of the Hormuz closure.

Chapter 6 established that the Strait closure hurts China. China, India, Japan, and South Korea account for seventy-five percent of oil exports and fifty-nine percent of LNG exports that normally transit Hormuz. China imported approximately 1.6 million barrels per day of Iranian oil before the war. That supply is now gone — destroyed by the war and blocked by the closure Iran itself imposed. China’s energy costs are rising across all sources as global prices surge.

Chapter 8 identified the grand bargain logic: triangular diplomacy in which the US exploits great power rivalries to isolate adversaries. The oil insulation mechanism provides the material basis for that diplomacy. If the United States is energy-insulated through hemispheric supply and export restrictions, while the rest of the world faces a twenty-percent supply gap, the United States becomes the swing supplier — the gatekeeper of global oil access. Countries that need oil must negotiate with Washington. The terms of that negotiation become the instrument of the great power realignment Chapter 8 described.

Europe needs oil. Japan needs oil. South Korea needs oil. India needs oil. China — the primary external supporter of Iran, the strategic competitor whose isolation the grand bargain targets — needs oil most of all. Each must deal with the United States to access it, either through direct purchase of US exports or through US-controlled Venezuelan flows. The price of access is alignment — on Iran, on trade terms, on technology competition, on whatever strategic objectives Washington sets as conditions.

The Hormuz closure is Iran’s strongest card. With the insulation mechanism in place, it becomes America’s.

What This Means for the Thesis

The oil insulation mechanism closes the gap between Chapter 6’s documentation of economic strangulation costs, Chapter 8’s great power realignment logic, and Chapter 10’s honest accounting of costs to Americans. The thesis identified all three elements. It did not explicitly connect them through the export restriction step that converts hemispheric oil control from a supply asset into a pricing weapon and a diplomatic instrument.

The sequencing question from Chapter 11 — design versus instinct — applies here as well. A designed strategy would have implemented export restrictions before initiating the Iran war, pre-insulating the domestic economy. The restrictions are reportedly under consideration but not yet implemented. Venezuelan production licenses were issued seventeen days before the war began. The SPR was not fully replenished. These are timing gaps consistent with the thesis’s overall verdict: the strategic logic is designed, the execution sequence lags, and the political communication has not connected the pieces for the American public.

The architecture exists. Venezuela is under US control. The refineries match. Domestic production is at record levels. The export restriction tool is available. When it is implemented, the Hormuz closure stops being an American cost and starts being American leverage. The question is not whether the mechanism works. The question — as throughout the thesis — is whether the administration executes the final step before the costs erode the domestic political support the strategy requires to reach completion