Less than a week after it was shut in, Nassiriya is back in operation following an agreement between the Dhi Qar Oil Company and local tribes demanding jobs.

For the second time in less than a month, protesters in southern Iraq have impeded staff from accessing the 80,000 bpd oil field.

Ahdab field still producing, officials say, though protesters using road and checkpoint blockages could create logistical obstacles that could shut in fields.

A tribal dispute over contracts burst into violence, with field employees caught in the crossfire.

The Nassiriya oil field and Dhi Qar refinery are operating again after the Oil Ministry took them offline temporarily to de-escalate protests.

The killing of an oil facilities policeman at a Khabbaz well comes as insurgent attacks are on the upswing.

Thousands of Islamic State militants are believed to be in the area, exploiting security gaps.