The municipality lies between the southern edge of the Hunsrück and the mountain range of volcanic origin of the Upper Nahe.

Both these noble houses are reflected by today's civic coat of arms.

One of the new government’s first initiatives was administrative reform for Oldenburg, which was followed on 27 April 1933 by the similar Gesetz zur Vereinfachung und Verbilligung der Verwaltung (“Law for simplifying administration and reducing its cost”) for the Landesteil of Birkenfeld (Oldenburg's exclave in the Hunsrück; most of Oldenburg's territory was in what is now northwest Germany, with a coastline on the North Sea).

[1] The German blazon reads: In schräglinks geteiltem Schild vorne in Gold drei (2:1) rote, quadratische Steine, hinten rot-silbernes Schach, belegt mit schwarzem Dreiberg.

The tinctures and charges on the dexter (armsbearer's right, viewer's left) side are drawn from the arms formerly borne by the Vögte of Hunolstein, and refer to the estate that they once held in the village, while the “chequy” field on the sinister (armsbearer's left, viewer's right) side is a reference to the village's former allegiance to the County of Sponheim, and the mount of three – a charge called a Dreiberg in German heraldry – stands for the Amt within the County of Sponheim in which Oberwörresbach lay, namely Herrstein (whose name literally means “Lordstone”).