A group monitoring terrorist activity in the Middle East says Islamic State militants have seized control of a natural gas field in Homs province in Syria.

The Long War Journal reported Sunday that it has viewed photographic evidence suggesting IS has captured parts of the al-Shaer natural gas field in Syria and several caches of weapons taken from defeated Syrian military forces.

"Pictures show that the Islamic State has taken control of the Hayan gas plant," Sunday's report stated.

The U.S. Defense Department and its coalition counterparts have hit oil installations controlled by the Sunni-led terrorist group to cut off a source of revenue and deplete fuel supplies used to make territorial gains.

At the height of its campaign, IS controlled as many as seven oil fields and was said to be generating as much as $2 million per day in oil revenue.

No information was immediately available on how much gas capacity was available from the Homs facility.