The Austrian company will acquire 10% interests each in the Mbeli and Ntsina blocks and 30% each in the Gnondo and Manga blocks.
Ophir will remain operator and retain 70% interests in the Manga and Gnondo blocks and 40% in the Mbeli and Ntsina blocks, in which Petrobras holds 50% interests.
Work plans for 2014, in addition to the three wells, include 3D seismic surveys on all four blocks, which cover 12,000 sq km.
OMV will pay past costs and a promoted share of the well costs on the Padouck Deep well, a presalt test on the Ntsina Block; the Affanga Deep well in the Ogooue Delta play on the Gnondo Block; and the Okala presalt well on the Mbeli Block. OMV also will pay a promoted share of the cost of two additional wells and of the 3D seismic surveys.
Drilling of the Padouck Deep well is to begin in February.