America has seen record highs for crude oil exports, with Texas's port being busier than ever while the Strait of Hormuz continues to suffocate under Iranian capture. 

The Port of Corpus Christi - the US's largest gateway for oil - has seen historic traffic and a 30 percent uptick in movement in recent weeks as world powers rush to buy American crude amid chaos in Iran's waterways.

The surge in US sales comes as the Strait of Hormuz remains blocked by Iranian forces since the war erupted in February. 

This comes as some of the last oil tankers from the Persian Gulf, which set off before the conflict started, arrived in California this weekend.

American exports hit a record 5.2 million barrels of oil per day in April, jumping from the 3.9 million recorded in February before the war broke out, data from Kpler revealed.

March marked the Texas port's busiest month, as CEO Kent Britton told CNBC that oil exports increased to 2.5 million barrels a day compared to 2.2 million last year. 

'It's a constant parade of tankers coming in and out,' he told the outlet. 

The Corpus Christi port made up around half of the country's total crude oil exports in April, as Houston exports accounted for much of the rest, Kpler data revealed. It is now the world's third-largest oil export terminal. 

Around 60 large oil tankers - double the number from last year- are expected to arrive at US ports in just days, taking with them around 2 million barrels each. 

Matt Smith, the director of commodity research at Kpler, told CNBC that much of the increased traffic is from Asian countries that previously imported their oil from the Middle East before the Strait was blocked off. 

'Asian markets are buying whatever they can get their hands on, so they're taking a lot of light sweet crude,' Smith told the outlet. 

The buyer increase, however, is not expected to last after the war due to the type of oil the US produces. According to Smith, light sweet crude oil is not a substantial substitute for the Middle Eastern barrels. 

There are also certainly ways for the US to attempt to keep up with the kind of production that was coming out of the Middle East, but they are too big of an oil supplier to be replaced, Smith said. 

'It's a hole that can't be plugged,' he added. 'The answer has to be ensuring secure supply from the Middle East.' 

The crisis has set states like California on edge, as they anticipate their last oil shipment from the Strait of Hormuz while prices of gasoline reached around $6 per gallon. 

Bound for California, the New Corolla prepared to set sail on February 24 just days before war broke out, the Los Angeles Times reported. 

Now, the Hong Kong-flagged oil tanker is expected to hit California's Marathon Petroleum terminal in just two weeks. 

The shipment marks the state's last while the war continues to rampage in the Middle East, and California will be forced to replace some 200,000 barrels of oil per day.

As of yet, the state has been able to receive fairly consistent shipments with around 75 percent of its oil coming in from foreign countries or Alaska, the Times reported. 

While the war progressed, California followed its usual course of action and found around 21 percent and 14 percent of its oil from Iraq and Saudi Arabia, Kpler data showed. 

Tankers that were able to load up and pass through the Strait before it was blocked have been able to continue supplying where it's needed. But, should the strait remain closed, 'all bets are off,' Stanford Institute for Economic Policymaking's Ryan Cummings told the outlet. 

'Refineries have to source from elsewhere, and they are scrambling to find where to get that oil,' Susan Bell, a senior vice president at the consulting firm Rystad Energy said. 

'They don't have very many options.'

Now, officials are warning residents that oil and gas shortages may be imminent. 

Bell told the Times that refiners are looking for ways to make up for the loss in oil shipments in countries that already source it, such as Ecuador or the west coast of Canada. 

'They would definitely look to Brazil for the medium grades,' Bell said. 'Guyana might be a little bit too light for them to want to ramp up, but you know, a liquid barrel is a liquid barrel, so maybe they won't be too fussy about the quality.' 

The California Energy Commission said it was 'working closely with refiners' and is 'aware they are identifying and using alternate routes and sources of crude.'

Nikki Woodard, a spokesperson for the commission, told the outlet that the agency is confident in the state's oil supply outlook for the next six weeks. 

'We went into this with pretty healthy inventories, but those are being drawn down and that's when it gets really precarious,' Cummings told the Times. 

However, an oil analyst with Wood Mackenzie, Jamie Lewis, said that she would 'expect to see prices increase sharply before we would see any shortages in California.'

Kate Gordon, who runs the economic policy nonprofit California Forward, said: 'Even in Texas, where they obviously have a huge amount of drilling and a lot of supply, prices are going up because the sellers are selling to whoever is paying the most during a moment of restriction.

'And everyone's facing restrictions all over the place. The only way to be less dependent on this global system is to reduce oil demand.'