28 June 2014, Maputo – The Canadian-based oil and gas company Wentworth Resources has announced that drilling operations have begun at the Tembo-1 well in the Rovuma Onshore concession in the northern Mozambican province of Cabo Delgado.
Wentworth is one of the minority shareholders in this well. The operator is the American company Anadarko, with a 35.7 per cent stake. Wentworth has 11.59 per cent, PTTEP of Thailand 10 per cent and Mauel et Prom of France 27.71 per cent. The remaining 15 per cent is held by Mozambique’s own National Hydrocarbon Company (ENH).
Wentworth says that the “Tembo-1 well is targeting mid-Cretaceous sands with secondary targets in the upper Jurassic”.
The huge deposits of natural gas discovered by Anadarko and the Italian energy company ENI off shore in the Rovuma basin are in much younger sands, from Eocene and Oligocene periods. The Jurassic and Cretaceous periods are both divisions of the Mesozoic era, and since the great majority of oil discoveries (about 70 per cent) have been in sands of Mesozoic age, Tembo-1 is perhaps more likely to strike oil than any of the offshore wells.
Two earlier wells were drilled in the offshore concession, including the Mocimboa-1 well which did find oil, but not in commercially viable amounts. Mocimboa-1 is about 17 kilometres northeast of Tembo-1.
According to Wentworth, Tembo-1 is the first of two Rovuma onshore wells in which the company plans to participate over the next six months.