The interior is fairly linear, though packed with mirelurks of various types.
As part of chain gangs, they would pick the ruins clean for anything of value that could be found. However, decades later, enterprising slavers began collecting the scattered settlers in the area and forcing them into servitude.
The building was long abandoned after the Great War, decimated with the surrounding roads and farmland. Oasis was once the name of an old motel off of one of the eponymous thoroughfares in the Five Highways Wasteland.