Petroleum industry in Nigeria to transport the crude oil. Also because of the lack of highly productive fields, money from the jointly operated (with the federal government) companies is constantly directed towards petroleum exploration and production. Nigeria's petroleum is classified mostly as "light" and "sweet", as the oil is largely free of sulphur. Nigeria is the largest producer of sweet oil in OPEC. This sweet oil is similar in composition to petroleum extracted from the North Sea. This crude oil is known as "Bonny light". Names of other Nigerian crudes, all of which are named according to export terminal, are Qua Ibo, Escravos blend,
Bonny Island Houses), representing the Founding Generation (i.e., Ancient Landmarks) of the Kingdom. These are namely (i) Bristol-Alagbarigha Royal House (Founder of Grand Bonny [“Okoloamakoromabo”] & Founding House of Grand Bonny Kingdom), (ii) King Halliday-Awusa Royal House (Founding House of Grand Bonny Kingdom), (iii) Dublin Green House (Lala, Ebie, Prince Asimini-Oruakpa Lineage - Founding House of Grand Bonny Kingdom), (iv) Prince Oruasawo Tolofari Royal House (Kumaluya-Ndende Omuigbem Lineage – Founding House of Grand Bonny Kingdom), and (v) Buoye-Omuso (Brown) Major House (Kongo lineage) – Founding House of Grand Bonny Kingdom. The early descendants of the Kongo Lineage established Ikpapkayo (present day Finima)