The Red Oak-Norris gas field was the first of several fields discovered recently in the deeper part of the Arkoma basin which yield gas from the lower Atoka Spiro Sand. The Red Oak-Norris gas field is, however, the only field discovered to date in which gas is produced in large quantities from sandstone beds of middle Atokan age, namely the Red Oak Sand of the upper middle Atoka.

The middle Atokan gas sands recently discovered at Southwest Quinton by Skelly Oil Company, 12 mi west of Red Oak-Norris field, cannot be correlated definitely as Red Oak Sand, but the productive zone is in the middle Atokan section.

The Red Oak-Norris gas field is the largest single gas-producing field, in both area and reserves, discovered to date in the deeper part of the Arkoma basin; it is believed to be also the most complexly faulted field. Overthrust faulting from the south as well as both normal down-to-the-north and down-to-the-south faulting are in evidence. There is considerably more to be learned concerning the geology of this field as development progresses.