It will publish details of the tender by the end of the month and, about half a year later, choose the winning companies, said Udi Adiri, the ministry's director general.
Last year's auction elicited bids from only two groups of companies, and the ministry said it expects more to compete this time as conditions have improved.
"There is strong interest in this tender, certainly compared to the previous round," Adiri said.
The 19 blocks have been divvied up into four sectors that benefit from more comprehensive geological studies than last time, he said. Israel has also signed major export deals with Jordan and Egypt over the past two years, opening new markets to companies looking to sell gas from Israel.
Adiri further said conditions in the global energy market had improved with companies more willing to make investments.
The exploration licenses will be for three years, with options to extend up to four more years, should terms be met.
There have been seven natural gas discoveries in Israeli waters, though not all have been developed. The Tamar field has been producing gas since 2013 and the huge Leviathan project, as well as two smaller fields, are expected to come online in the next few years.
(Reporting by Ari Rabinovitch; Editing by Mark Heinrich)
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