Israeli energy exploration company Isramco Negev 2 Ltd. Partnership (ISRA.L.TV) said Monday that it has submitted a court petition to buy the rights of its partner, Houston-based ATP Oil and Gas Corp. (ATPAQ), in Israel 's offshore Shimshon natural gas field for 150 million shekels ($39.7 million).

Isramco and its affiliates own 60% of the Shimshon field, and ATP, which filed for bankruptcy last year, owns 60%. Because ATP has filed for bankruptcy, a court must approve the sale, Isramco said. The Shimshon field likely contains up to 2.3 trillion cubic feet of gas, according to geological surveys.

ATP is one of the few foreign energy companies involved in
Israel 's recent natural gas and oil discoveries. Natural gas production is poised to become a major contributor to Israel 's economic growth this year. With the large offshore Tamar reserve, which contains about 9 trillion cubic feet of gas, set to begin production this year, Israel 's gross domestic product is expected to grow 3.8%, according to the Bank of Israel.

Without taking into account the production of gas, the bank said it would expect the GDP to only grow 2.8%.
Israel 's GDP grew 3.3% in 2012.

At 1140 GMT, shares of Isramco were down ILS0.007, or 1.11%, at ILS0.625, in a lower Tel Aviv market.