The Iranian oil industry will continue to develop even if the U.S. pulls out of the 2015 Iran nuclear deal, and Tehran would see the accord as operational as long as it can sell oil, the Oil Ministry website quoted senior officials as saying on May 7.

U.S. President Donald Trump has threatened to pull out of the Iran deal by not extending sanctions waivers when they expire on May 12 unless European signatories of the accord fix what he calls its “flaws”.

“They cannot stop Iran. Our oil industry’s development will continue even if new sanctions are imposed on Iran,” Gholamreza Manouchehri, deputy head of the National Iranian Oil Co., said.

Sanctions imposed on Iran in early 2012 by the U.S. and European Union over its nuclear program cut Iran’s crude exports from a peak of 2.5 million barrels per day (MMbbl/d) before the sanctions to a little more than 1 MMbbl/d.

But Iran re-emerged as a major oil exporter in January 2016 when international sanctions were suspended in return for curbs on Iran’s nuclear program.

Deputy oil minister Amirhossein Zamaninia also said that Iran considered the deal alive “if we can continue to sell our oil and its products,” even if the U.S. pulls out. “We have learned from decades of sanctions how to sell our oil,” he said.

OPEC, Russia and several other producers began to reduce oil output in January 2017 in an attempt to erase a supply glut and prop up prices. They have extended the pact until December 2018 and meet in June to review policy.

“We back OPEC’s decisions under normal circumstances ... But Iran always gives priority to its own interests ... whoever produces more oil has more power in the market,” Zamaninia said.

Iran says it aims to raise its crude oil production capacity to 4.7 MMbbl/d within the next four years.