Laser oscillation at 1315 nm on the I(2P1/2) → I(23/2) transition of atomic iodine has been obtained by a near resonant energy transfer from O2(a1Δ) produced using a low-pressure oxygen/helium/nitric-oxide discharge. In the electric discharge oxygen-iodine laser (ElectricOIL) the discharge production of atomic oxygen, ozone, and other excited species adds levels of complexity to the singlet oxygen generator (SOG) kinetics which are not encountered in a classic purely chemical (O2(a1Δ) generation system. The advanced model BLAZE-IV has been introduced in order to study the energy-transfer laser system dynamics and kinetics. Levels of singlet oxygen, oxygen atoms and ozone are measured experimentally and compared with calculations. The new BLAZE-IV model is in reasonable agreement with O 3, O2(b1∑), and O atom, and gas temperature measurements, but is under-predicting the increase in O2(a 1Δ) concentration resulting from the presence of NO in the discharge. A key conclusion is that the removal of oxygen atoms by NO X species leads to a significant increase in O2(a 1Δ) concentrations downstream of the discharge in part via a recycling process, however there are still some important processes related to the NOX discharge kinetics that are missing from the present modeling. Further, the removal of oxygen atoms dramatically inhibits the production of ozone in the downstream kinetics.