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About Ratio  /  History



Ratio has grown over the last 25 years and developed considerable experience in exploring for hydrocarbons both onshore and offshore.


1992 Ratio is established by the Rotlevy and Landau families, together with Mr. Zvi Tsafriri and Mr. Eitan Aizenberg (Ratio’s chief geologist)
1999 Ratio innitially becomes involved in offshore prospects in the Levant Basin
2007 Ratio is granted a 100% working interest in the Ratio Yam Preliminary Permit Area, encompassing the Leviathan and the Dolphin prospects, located 110-140 km west of the Israeli coast
2007-2008 Ratio farms-out a share of its working interests to Delek Drilling, Avner, and Noble Energy
2008 Following the completion of 2D & 3D seismic surveys and their analysis, the preliminary permit was converted into five exploration licenses named the "Ratio Yam" licenses

Upon successfully drilling and evaluating the first well, Ratio, together with its partners, announces a significant natural gas discovery in the Leviathan field - the world’s largest deepwater natural gas discovery of the last decade, with an independently confirmed ~22 TCF of natural gas and more than 39 MMBBL of condensate (NSAI assessment since 2014 and as of today)

Ratio is granted 100% of the rights in the Gal Preliminary Permit Area offshore Israel, and as operator fulfilled the work plan in its entirety, including the acquisition of a 3-D seismic survey

2013 Two exploration licenses were granted to Ratio in the Gal Preliminary Permit Area ("Royee" and "Neta"). Ratio farms-out part of its working interests in the two licenses to Edison International SpA and Israel Opportunity
2017 Ratio and the Leviathan Partners announce that they have sanctioned the first phase of the Leviathan natural gas project, with first gas targeted for the end of 2019