Islamic State launched a local offensive on the E Homs desert front that recaptured the Shaer gas field.
See:
pics
and description of what they captured.
In addition to taking ground and the lucrative natural gas wells/processing facility, they also captured several tanks, BMP-1s, as well as a few artillery pieces, a significant amount of artillery shells, a few guided anti-tank missiles, as well as, presumably, a large amount of small arms ammunition.
Although there are no pictures,
they claim
to have captured a significantly larger haul.
These local offensives out of the desert against the SAA and NDF are now undoubtedly one of the principle sources of supply for the Islamic State. In the last 6 months, just off the top of my head:
These raids target the E Homs desert front because it is the lowest priority for the SAA/Iranian/Russian axis. The great length of the front and large number of isolated locations where IS can concentrate and strike make it favorable compared to other zones of the country. There are many pre-war Syrian arms depots on the desert front, and the whole front tends to be guarded by lower quality SSA/NDF units and lower-tier Iraqi Shia militia units. Thus IS is using its diminishing power quite wisely, to make quick attacks against the weakest enemies it faces in order to maximize ratio of captured weapons/supplies to casualties. At this point, battlefield captures from the SAA/NDF are probably the biggest single source of weapons and supplies that IS has.
Shaer is particularly interesting for them because it may produce usable petrochemicals. Earlier in the war, the Shaer gas field was actually producing revenue for IS, via the expertise of workers who were stranded there when the government forces were driven out, but at this point I suspect it is too contested, damaged and lacking in trained employees to actually become a meaningful revenue generator for IS again.