Oral tradition speaks of migrations from the ancient Benin Kingdom by the Urhobos that gave rise to this area.

[1] The founders of Agbon migrated through Kwale, probably from Erhowa, settled at Ehwen and Erhivwi or Irri in present Isoko division of Delta State.

From there they moved down to Utokori, close to Ughwerun; then to Olomu and through the present Ughelli territory of Ekuigbo to found Otorho r' Agbon now known as Isiokolo.

The land is bounded in the north by Abraka kingdom, and Orhionmwon Local Government Area in neighbouring Edo State, On the east, it is bounded by Orogun, Agbahra Otor, Agbarho Kingdoms, Ujode River, and Ekrerhavwe, all of them Urhobo communities in Ughelli North Local Government Area.

He was crowned Ovie in February 2013 succeeding the late Ogurime-Rime Okpara I[3] This kingdom produces a variety of food crops, mostly yam, plantain and cassava.