Delek Group and Noble Energy, a company with headquarters in the United States, are among the major offshore players in the Israeli natural gas sector. They estimate the Tamar field holds at least 8 trillion cubic feet of gas.
Delek said that its partners agreed on a budget for the project of $3.2 billion, up from a previous estimate of $3.1 billion.
Delek said gas from Tamar would be exploited using a floating liquefied natural gas facility in a way that doesn't affect the supply of natural gas to the Israeli market. Last month, it signed a heads of agreement deal with Russian gas company Gazprom for the sale of 3 million tons per year of LNG from Tamar.
Israel is looking to diversify a natural gas sector that depends in large part on Egypt. Conflict in the Sinai Peninsula has disrupted Egyptian gas deliveries.