Fourth oil-related terrorist assault since Tehran’s threat to halt exports from Gulf BAGHDAD, Iraq: Iran was accused of sowing further chaos on Wednesday when a rocket hit a site near Basra in southern Iraq used by US and other oil companies. The attack came hours after three rockets landed in the Rumailah oil field in Basra, near a camp used by the US oil services company Baker Hughes. It was the fourth oil-related terrorist attack since Tehran threatened to halt exports from the Arabian Gulf in response to US sanctions aimed at reducing Iran’s oil sales to zero. Three people were injured in Wednesday’s incident, when a short-range Katyusha rocket hit a drilling site in the Burjesiya area near Basra, an operational area for oil companies including Royal Dutch Shell, Eni of Italy and the US giant ExxonMobil. The finger of blame was immediately pointed at Iran-backed armed groups in the area, particularly Kata’ib Hezbollah. “They are equipped with this type of rocket, which is ubiquitous among the Iranian-supported militias,” security analyst Dr. Theodore Karasik told Arab News.“The Islamic Republican Guard Corps has created a supply network for local militias that helped to build up a weapons stock around Basra. It is easily fed by new supplies from Iran because of the porous nature of the border between the two, both on land and at sea,” said Karasik, senior adviser at Gulf State Analytics in Washington, DC. An Iraqi security source also blamed Iran-backed militias. “The team that launched the rocket is made up of more than one group and were well trained in missile launching,” he said. The rocket was fired from farmland about 4 km away and landed 100 meters from part of the site used as a residence and operations center by Exxon. Company staff were flown to Dubai. Abbas Maher, mayor of the nearby town of Zubair, said he believed Iran-backed groups had specifically targeted Exxon to “send a message” to the US. “We cannot separate this from regional developments, meaning the US-Iranian conflict,” he said. “These incidents have political objectives.” Meanwhile US investigators presented more evidence that Iran was behind last week’s tanker attacks in the Gulf of Oman. “The limpet mine used in the attack … bears a striking resemblance to Iranian mines already publicly displayed in Iranian military parades,” said US Navy Commander Sean Kido.