President John Dramani Mahama has announced that Explorco, the exploration subsidiary of the Ghana National Petroleum Corporation (GNPC), will begin onshore drilling activities in the Voltaian Basin before the end of 2026 as part of efforts to determine the commercial viability of petroleum reserves in the area . The President disclosed this while cutting the sod for Phase Two of the Sentuo Oil Refinery Project in Tema. According to the President, the Voltaian Basin has been identified as a region with significant petroleum potential, and the planned drilling programme will mark a major step in Ghana's efforts to expand its hydrocarbon resource base beyond existing offshore fields.