The Syrian Army has taken control of oilfields and a gas refinery near Deir ez Zor, according to a state news outlet Russia Today.
The city, the largest in eastern Syria, has been caught up in the civil war engulfing the country.
It comes as President Bashar Al-Assad’s forces march on the banks of Euphrates River.
The oil rich province has been locked into a race between the incumbent Syrian government forces and the US backed rebel group the Syrian Democratic Forces.
The area was formerly under the control of ISIS.
Recommended for you
Read the latest opinion pieces from our Energy Voice columnists
- Opinion: Gender diversity still an issue in oil industry, but it needn’t be
- Opinion: Accountants are the next big thing in renewable energy
- Opinion: The $10 trillion resource North Korea can’t tap
- Opinion: Onshore decommissioning needs a coordinated port plan
- Opinion: How do you use oil’s wealth to build a sustainable future?