The committee on the Joint Venture of the NNPC limited raised concerns when the management of Chevron appeared before the lawmakers in Abuja.
The National Association of Itsekiri Graduates Worldwide has issued a 28-day ultimatum to Chevron Nigeria Limited to commence the reclassification of Itsekiri graduates.
He said that Chevron had deployed several helicopters to apply chemical dispersants to dissolve the oil deposits.
Chevron and other oil multinationals have been facing tough times in Nigeria as demand for oil continues to drop worldwide.
