In the shallow and inland waters of Nigeria, the firm operates a joint venture with the Nigerian National Petroleum Corporation.
Gradually, the participatory interest became 60% for NNPC, 20% for Texaco (operator) and 20% for Chevron (previously Standard oil of California).
The company's top production fields were located offshore in water depths between 30 and 400 meters, majority of the oil flowed into the firm's floating and storage facility, M.V.
The major fields of the firm include, Okan, Delta South, Meren, Meji, Isan, and Abiteye.
Over 600 initiatives, which have resulted in the creation of scholarships, new schools, medical facilities, and housing, as well as support for agriculture and infrastructure development in the country, have been funded by the NNPC/Chevron joint venture, which has spent more than $118 million.