Iranian and Iraqi workers on gas pipeline already delayed by security problems slayed by unknown gunmen.

One year ago, Tuz Khurmatu was the site of a shootout between federal and Kurdish forces; now, racked by bombings, the town is asking the KRG to take over security.

Exploiting the porous borders and vast desert of Iraq's biggest province, the Islamic State of Iraq and al-Sham is waging an ambitious battle for control of Anbar.

As hundreds of foreign oil workers rushed to the Basra airport, a top Maliki envoy arrived in Basra assuring the security of projects.

After alleged offenses against Shiite religious observances, two separate mob attacks at the Rumaila field left a British contractor hospitalized and forced Baker Hughes and Schlumberger to shut down operations.

Assailants breached security, detained guards and staff, and stole money and equipment in an attack blamed on gang-style robbery rather than terrorism.

A deadly attack highlights Iraq's intensifying sectarian violence and exposes security gaps around a critical piece of infrastructure.