Tanoe Vonan Louis Innocent
Louis founded Casti Energy & Services to answer a gap he had watched widen for a decade: the distance between international technical standards and the operating realities of West African upstream projects. The firm's early mandates — independent reservoir reviews, local content strategy and collateral oversight — grew directly out of that observation. Today he leads Casti Ghana's advisory practice, maintains the firm's institutional relationships with the Petroleum Commission and the EPA, and personally signs off on every technical deliverable that leaves the Accra office.
Tanoe Mahamar Vonan
Mahamar founded Casti UK in London to give the group a principal presence in one of the world's deepest petroleum markets. The desk was designed from day one to trade physical cargoes — not purely paper — with a strict focus on West African supply and a disciplined approach to trade-finance and counterparty risk. He leads the firm's supply relationships with Atlantic-basin refiners, its vessel chartering programme and its commercial negotiations with importing utilities and retail operators.