On 5 February 2012 Noble Energy reported that the Ensco 5006 drilling rig (formerly the Pride North America) had struck gas at a depth of 5,500 m.[3] Preliminary estimates put the potential for natural gas at Tanin at 1.2-1.3 trillion cubic feet.

[5] Tanin is located within the Alon A license, in which three companies are partners: Noble Energy (47%), Delek Drilling (26.5%), and Avner Oil Exploration (26.5%).

[7] Due to Noble Energy and Delek (and its subsidiary Avner’s) monopolistic position in the domestic natural gas production market, they were forced by the Israeli government to divest most of their rights in the Tanin and nearby Karish fields in 2016.

[8] As of 2018, Energean has signed supply contracts with customers in Israel which account for all of the proven reserves in the two fields (at a production rate of 4.2 BCM per year).

In March 2019 Energean intends to begin drilling exploration wells in order to assess the viability of the fields’ additional prospective and contingent reserves.