![A dark plume of smoke rises up from a main oil refinery south of Tehran, Iran, Thursday, June 3, 2021. A massive fire broke out Wednesday night at the oil refinery serving Iran's capital, sending thick plumes of black smoke over Tehran. (AP Photo/Ebrahim Noroozi)](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/V5FXTVJQRV76AERX5KAO2KVWVY.jpg?smart=true&auth=60cd9edc04df57cd2d5e317818b029e10f2aedbbd40ccbe68acacdc58e27c247&width=400&height=225)
Smoke at a refinery near Tehran. Fires that have hit Iran’s energy sector could partly be due to substandard parts. AP
Smoke at a refinery near Tehran. Fires that have hit Iran’s energy sector could partly be due to substandard parts. AP
Future of Iran's oil industry remains uncertain as it heads to the polls
The country's energy sector is in dire need of both cash and international equipment