Italy’s oil and gas major Eni said on Wednesday that it had made a major oil discovery in Angola’s deepwater in a find that could help the African OPEC producer to reverse the recent decline in oil production. Eni struck oil in Block 15/06 in the Agogo exploration prospect and estimates that the discovery contains 450-650 million barrels of light oil in place with further upside. The data acquired from the well indicates a production capacity of more than 20,000 bpd, Eni said, noting that this was the third commercial discovery in Block…