Iran remains one of the most sanctioned countries in the world. Yet, its economy, especially the oil and energy sector, is growing rapidly. Recent figures show that sanctions are doing little to stop Iran’s economic momentum.

US Sanctions and Their Limits

This week, the US imposed new sanctions on a network accused of smuggling Iranian oil disguised as Iraqi oil, and also on a Hezbollah-linked financial group. However, these efforts seem ineffective. Many experts believe sanctions rarely work as intended. Agathe Demarais, author of Backfire: How Sanctions Reshape the World Against U.S. Interests, told NPR, “The reality is that sanctions are sometimes effective, but most often not.”

Once the most-sanctioned country, Iran was overtaken by Russia after the Ukraine war in 2022. Still, Iran’s oil sector tells a different story — one of surprising success.

Oil Revenues Hit Record Highs

Iran’s oil production reached a 46-year high in 2024. Energy exports brought in $78 billion — a major leap from $18 billion in 2020. Experts say this rise is due to a mix of US political strategies, Iran’s smart planning, and China’s growing role in global trade.

At times, US authorities turned a blind eye to Iranian oil flows to avoid a global oil shortage and control inflation. Meanwhile, Iran and China continued to quietly strengthen their oil trade.

Iran’s Clever Strategy

Iran adapted to sanctions by expanding exports of natural gas liquids like butane, propane, and ethane. These products now bring in large amounts of foreign currency. The country owns the world’s second-largest natural gas reserves and ranks third in production, after Russia and the US.

Most of this gas comes from the South Pars field in Bushehr, which Iran shares with Qatar. This single gas field accounts for nearly two-thirds of Iran’s total production.

Revolutionary Guards Step In

The Islamic Revolutionary Guards Corps (IRGC) has helped build Iran’s infrastructure to process and export these energy products without relying on international help. Their role has been key in strengthening the domestic energy supply chain.

China Becomes the Main Buyer

China now buys around 90% of Iran’s oil exports. These transactions avoid the US dollar and rely on a sanctions-proof network. Oil is shipped through complex routes and payments are made in yuan, making them hard to track.

Even though China’s customs data shows no official oil imports from Iran since 2022, ship tracking firm Kpler reported a sharp rise. In 2024, China imported nearly 17.8 million barrels per day of Iranian oil — almost twice as much as in 2022.

Global Tensions Don't Slow Iran

Recent tensions, including Iran’s conflict with Israel, have not slowed oil output. Damaged facilities are quickly repaired. The US has also stepped in to prevent disruptions in the global energy supply, helping Iran maintain steady exports.

Sanctions Fall Short

Despite repeated sanctions, Iran’s oil industry is thriving. The country continues to earn billions, mostly from energy exports to China. This situation weakens the effectiveness of Western sanctions and gives Iran a stable economic foundation.