Italian firm Eni’s August 2015 Zohr discovery in the Egyptian deepwater, with its 30tcf of gas in place, vies with Israel’s Leviathan, discovered December 2010 by US firm Noble Energy, for the title of the East Mediterranean’s largest gas discovery.

Leviathan and Noble’s other key East Med deepwater discoveries – Tamar the previous year and Cyprus’ Aphrodite in 2011 – were all of ‘lean’ gas (near 100% methane) in Miocene deep-water fan sandstone (clastic) source rocks. (CONTINUED - 1630 WORDS)