Turkey Black Sea exploration basin

The Turkish sector of the Black Sea basin is a deepwater, frontier exploration province. In 2020, the discovery of the giant Sakarya gas field was transformational for Turkey. It confirmed the extension of the Miocene-Pliocene sandstone play discovered by Neptun Deep in the neighbouring Romanian Black Sea. A second discovery in 2021, North Sakarya - confirms the subsurface potential in the ultra-deepwater. Uncertainty remains over the remaining resource potential of the whole of the Black Sea. We estimate that 15 tcf of gas remains in the Turkish sector. There are however numerous challenges in the basin, including deep to ultra-deepwater, limited offshore infrastructure, and difficulty in mobilising equipment to the land-locked basin through the busy Bosphorus Strait.