John Brown, the head of Zion Oil & Gas, believes the Bible will help him find oil in Israel. The company, which is listed on Nasdaq, has so far spent $130 million and drilled four dry holes. Brown is shown here at one of the company's drilling rigs in Israel. Courtesy of Zion Oil hide caption

toggle caption Courtesy of Zion Oil

Givot Olam CEO Tovia Luskin expects to drill 40 wells and build a pipeline to a refinery on the coast. The company already has "proven and probable" reserves of 12.5 million barrels of oil. Luskin chose where to drill based on a passage from the Bible. Emily Harris/ NPR hide caption

toggle caption Emily Harris/ NPR

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