Will the US Seize Iranian Oil and Natural Gas Assets?
A follow-on to Iran: The Bill Has Come Due
Two pieces ago, in Nation Building: You Can’t Build What They Don’t Want, I wrote this: “It may be that the West needs to stop pretending and simply occupy the resource-critical portions of these regions, controlling how those resources are extracted and allocated.” I called it the honest conversation we wouldn’t have — the option that’s too uncomfortable to say out loud, so we dress up resource interests in the language of liberation and democracy promotion instead.
In my last piece, Iran: The Bill Has Come Due, I argued for a different approach: don’t occupy, destroy. Cut the oil revenue and you cut everything it buys — missiles, proxies, centrifuges — simultaneously. A staged campaign starting with Kharg Island. No nation-building attached. Pull the financial pin and let the programs collapse on their own. I closed with this: “What they haven’t done is be honest with the American public that this is the plan.”
Then the United States put 2,500 Marines aboard a three-ship Amphibious Ready Group on a slow boat to the Persian Gulf.
Nation-building talk is theater. Nobody credible in Washington is planning to rebuild Iran — Afghanistan and Iraq are permanent reminders of what that costs and produces. Regime change rhetoric is for the cameras. What military planners actually do is look at assets, objectives, and access routes.
And when you look at what 2,500 Marines aboard a three-ship Amphibious Ready Group are designed to do — seize coastal objectives, secure ports, hold fixed infrastructure — the question shifts.
The plan may not be to destroy Iran’s oil and gas business. It may be to take it — or to threaten seizure so credibly that Iran has to treat it as real.
That uncomfortable conversation I said we wouldn’t have? We may be having it right now — with actions instead of words. Whether the Marines land or the threat alone does the work, the leverage is the same. Iran has to plan for the worst case. So does everyone else.
The Prize Is Stacked in One Corner
Iran holds the third largest proven oil reserves on earth — roughly 150 billion barrels, enough at current production rates to last 145 years. But reserves in the ground are a geology story. What matters operationally is where the producing infrastructure sits.
Here is the strategic geography that nobody on television is explaining: the vast majority of Iran’s crude oil reserves are concentrated in the southwestern Khuzestan province, pressed against the Iraqi border to the west and the Persian Gulf to the south. The Ahvaz field — third largest in the world — holds an estimated 65 billion barrels, roughly 23% of Iran’s total reserves. Marun, Gachsaran, and Agha Jari round out the supergiant tier. All of them in the same province. South Pars — the largest single gas field on the planet — sits offshore in the Gulf.
The entire productive complex — fields, processing plants, pipeline network, and the Kharg Island terminal that handles 90% of Iran’s oil exports — fits within a rough triangle: Ahvaz to the north, the Iraqi border to the west, the Gulf coast to the south. Call it 200 miles on a side.
Khuzestan is geographically separated from the Iranian heartland by the Zagros mountain range. Tehran is roughly 400 miles away on the other side of those mountains. This is not an accident of geology. It is an operational gift.
Iran Spent Its Deterrent on the Wrong Targets
Two weeks ago an amphibious assault on Kharg or a ground advance into Khuzestan would have faced a serious Iranian military response. Today the math has shifted dramatically, and Iran’s own decisions explain why.
Iran entered this war with approximately 2,500 ballistic missiles. After ten days, according to IDF and US military assessments, roughly 2,410 had been fired and over 60% of launchers destroyed. The daily launch rate collapsed 92% — from 480 on day one to 40 by day ten. That is not rationing. That is structural failure. The US used bunker buster bombs to seal the entrances of Iran’s underground missile storage facilities, leaving hundreds of missiles entombed. The inventory exists. It cannot be reached.
Iran’s navy is severely degraded — 43 vessels destroyed or damaged. The fast-attack boat swarm that formed the core of Iran’s Persian Gulf anti-access doctrine has been eliminated. What remains is a drone capability — real and persistent, but an attrition weapon, not one that stops a ground advance or defends a fixed perimeter.
Iran fired its deterrent at airports in Dubai, hotels in Riyadh, and US bases across the Gulf. It spent what it had harassing the neighborhood instead of holding it in reserve for the scenario now on the table. The plain English is: they wasted their bullets.
This is a classic military mistake — one that looks like sound strategy to non-military observers and reveals itself as catastrophic to anyone who has studied military history. Targeting civilian infrastructure feels decisive and that it will destroy the will of the people to resist. It signals resolve. What it almost never does is win wars or preserve military capability for the fights that actually matter. Iran had a sophisticated anti-access capability purpose-built for the Persian Gulf. They spent it sending messages instead of stopping ships. Now the ships are coming.
The Operational Logic
The March 13th strikes on Kharg made the direction of travel explicit. CENTCOM destroyed 90+ military targets — mine storage, missile bunkers, IRGC facilities — while explicitly sparing the oil infrastructure. Destroy the defenses, leave the pumps running, unlock the front door. That is not punishment. That is a turnkey seizure setup.
The geography does the rest of the work. The strait is not closed — shipping companies are self-deterring, which Iran is passing off as leverage. The moment the US commits to escorting convoys through, that theater ends. Iran can make the strait scary. They cannot stop a determined naval force. Khuzestan is accessible from Iraq across flat terrain, with the Zagros blocking Iranian reinforcement from the heartland. Kharg, stripped of its military garrison, sits with its pumps running and 18 million barrels in storage. The offshore fields that feed it are platforms — small footprint, manageable.
The 2,500 Marines en route aboard the USS Tripoli — accompanied by the USS New Orleans and USS San Diego as part of a full Amphibious Ready Group — are not a regime change force. A MEU takes ports, terminals, and pipeline junctions. It does not take capitals. Nobody is marching on Tehran.
Where It Gets Hard
Three things complicate the arithmetic.
Ahvaz city. The Ahvaz field is threaded through a metropolitan area of roughly 1.3 million people. The answer is not nation-building — it is relocation. Move the civilian population out of the operational zone, secure the infrastructure, keep the oil flowing. It is not pretty. It is also not nation-building, reconstruction, or the installation of democracy. It is making the world’s economy function. The obligation is to move people safely, not to rebuild their city or determine their government.
A word on sympathy. The Iranian people deserve it — many are trapped by a government they’d gladly be rid of. But the 1979 revolution was not imposed on a passive population. It was a mass uprising. Millions of Iranians took to the streets to bring down the Shah. They chose theocracy. Theocracy failed them — but that is a consequence of their own political history, not an obligation the rest of the world is required to fix. The world economy did not vote for the Islamic Republic. It should not have to keep paying for it.
The scorched earth question. Non-military observers assume Iran would torch the fields rather than surrender them. Students of military history are more skeptical. Scorched earth requires a command structure willing to permanently destroy its own country’s primary source of national revenue — not to win the war, but to spite the occupier. Nobody burns down the house they intend to live in. Marginal sabotage is likely. Systematic destruction of the entire field complex is a regime betting it has no future. That is a different, harder calculation.
China. Approximately 80% of Kharg’s oil goes to China. The foreign policy establishment calls this unthinkable. That analysis mistakes theater for reality. China buys Iranian oil because it is cheap and reliably delivered. If the US controls Kharg, China still needs the oil. The negotiation changes from a back-channel arrangement with a sanctioned regime to a commercial transaction with whoever is operating the terminal. China will complain loudly and then place the order. The US controlling Iranian production is not a cutoff — it is a change of management. This is a business problem, not a security threat.
There is a secondary dimension worth naming. US control of Kharg is not just leverage over Iran — it is structural leverage over China’s energy supply that no sanctions regime has ever provided. Washington would hold the spigot for roughly 12% of China’s seaborne oil imports. That is a negotiating position across every other issue on the US-China agenda. Beijing knows this. China also holds an estimated 115-day strategic reserve — enough to absorb a transition period without a supply crisis, which means they can adapt to new commercial terms without going to the mat over it. It is one more reason they will adapt rather than escalate.
The Off-Ramps Iran Won’t Take
Iran has options. Reopen Hormuz. Stop funding proxies verifiably. Abandon the nuclear program. Accept internationally managed oil operations under revenue-sharing terms. Any one of those is a climbdown the regime could probably survive.
Regime change is not the objective and never was. The clerics can stay in power. They simply have to stay inside Iran. What is not acceptable is funding Hezbollah, arming Houthis, backing Hamas, spinning centrifuges toward a weapon, and threatening international shipping. Stop doing those things and the pressure stops. Behavioral compliance, not regime change. The bar is low enough that a rational government would have cleared it years ago.
This is the same framework the Trump administration has applied to Venezuela. Maduro can run his dictatorship — just keep it inside your borders. Iran and Venezuela are not the same crisis. They are the same problem statement.
The strait is not closed — shipping companies are self-deterring, which Iran is passing off as leverage. It isn’t. The moment the US commits escorts, the theater ends. Iran is trying to win by making everyone uncomfortable. The US is trying to win by making Iran unable to fight. Those are not symmetric strategies. One of them runs out of runway. Iran’s Hormuz gambit is not leverage. It is the rope to hang itself.
The off-ramps are visible, they are survivable, and they are closing. Every day Iran waits, the terms get worse and the options get fewer.
The Verdict
The window exists. Iran has spent its conventional deterrent. The geography concentrates the prize into a compact, accessible theater. The assets are positioned. If there is ever a moment when seizing Iran’s oil infrastructure is militarily feasible — whether as an executed plan or a threat held in reserve — this is it.
Kharg and the offshore fields are seizable with what is in theater — and the strait disrupted by fear rather than actually closed is less of an obstacle than it sounds. Khuzestan — the full prize — is harder but gets more possible every day Iran refuses the off-ramps.
The definition of success is behavioral, not governmental. The US does not need Iran to become a democracy or even like us. It needs Iran to stop exporting violence and stop threatening global shipping. The clerics can keep their jobs. The price is staying in their lane.
In my last piece I argued that destroying Iran’s oil capability was the right play. I still think destroying is cleaner than taking — you don’t have to defend rubble. But the Marines on that slow boat are not a demonstration force. You send carriers and Tomahawks for a demonstration. You send an amphibious assault ship with a Marine Expeditionary Unit when you are planning to put boots on something and hold it.
The USS Tripoli is about 7 to 10 days from theater. That is Tehran’s clock. When it arrives, the options narrow.
Iran can see what is coming. They need to accept the inevitable — or watch this plan unfold.