The deals involve a minimum investment of $332 million, the petroleum ministry said in a statement.
Israel will initially export 200 million cubic feet of gas per day to Egypt, two Egyptian industry sources said.
European governments and Israel last year agreed to proceed with the so-called EastMed project, a $6 billion to $7 billion pipeline project to carry gas from Israeli and Cypriot waters into Europe.
Texas-based Noble Energy Inc., Israel's Delek Drilling and Ratio Oil said that operations from the offshore Leviathan Field had started, effectively doubling the amount of Israeli-produced gas.
Exxon Mobil, which has had a long-standing downstream presence in Egypt dating back to the beginning of the 20th century, marked its foray into gas exploration in the country in February 2019.
Rescinding a Dec. 17 injunction, the Jerusalem District Court said appellants had not provided sufficient evidence that Leviathan’s emissions, in its start-up phase, could prove dangerous.
On Dec. 17, the Jerusalem District Court, in a surprise decision, issued a temporary order that barred any gas emissions from Leviathan, effectively putting the project, which was due to come on line this month, on hold.
The director general of Israel’s Energy Ministry sent a letter to officials at the three companies, saying development must not commence until agreement is reached between the governments of Israel and Cyprus.