Saturday, December 10, 2022


Yehuda Halevi Street 85
Tel Aviv 65796
Tele #: 972 3 566 1338
Fax #: 972 3 566 1280

Ratio Oil Exploration (1992) Limited Partnership explores for and produces oil and gas in Israel. In 1992, Yeshayahu (Shaikeh) and his son Yigal Landau, in collaboration with the Rotlevy family, the late Zvi Tzafriri, and Geologist Eitan Eisenberg, established the “Ratio Oil Exploration (1992)” – Limited Partnership for the purpose of oil exploration in Israel. In the early years of its establishment, Ratio focused on onshore oil exploration, however, after several dry wells as well as wells which were regarded as non-commercial discoveries, Yigal, along with his partners, decided to shift Ratio activities to the exploration and production of hydrocarbons in deep water in the eastern basin of the Mediterranean Sea known as the Levant Basin. The company offers condensate and liquefied natural gas. Its exploration licenses include 399/Royee that covers an area of 400,000 hectares located in the Mediterranean Sea; and 353/Eran and 351/Hana located in the Mediterranean Sea. The company also owns a 15% of rights in Leviathan South I/14 and Leviathan North I/15. Ratio Oil Exploration (1992) Limited Partnership is based in Tel Aviv, Israel. They are currently in a joint venture with ESSO Guyana Limited operating the Kaieteur block off shore Guyana.

Yigal Landau, CEO

In addition to his activities with Ratio, Yigal Landau has contributed over the years to many other noticeable activities in the business field, including:

  • 2005-2013– Director at “Dalia” Power Energies Ltd. Landau ventured to establish the company’s private power plant in Tel-Tzafit, which, with a capacity of 870 megawatts, is expected to be the largest private power plant in Israel and the investment for its establishment is estimated at a level of USD 1.0 billion. The power plant is expected to house two integrated combined cycle power generation units, fueled by natural gas, each unit ‘s installed capacity is approx. 435 MW.
  • 2001 and onward– Director at Proseed Venture Capital Fund Ltd. The fund invests in start-ups and high-tech companies in the information technology, life sciences and medical device fields.
  • 1993 and onward– Director at the Union Bank of Israel. As a member of the board, he serves as a member of the Risk Management Committee, the Diamond Merchants Credit Committee, the Committee for Fixed Asset Transactions and in the Real Investment Committee.
  • 1990 and onward– CEO of Hiram Landau Ltd., a leading company in infrastructure, and real estate development, which, among others, is responsible for the recycling of roads using advanced methods as well as for the production of asphalt. The company has undertaken many projects, including the development of an area of 1,200 acres in Modi’in. In 1991, the company was established by Hiram Landau’s company, “Ecological Ltd.” for research and development of a fat-absorbing material.
  • Education
  • Yigal Landau holds an MBA in Business Administration from Tel Aviv University (1986) and a BSc in Engineering from the Technion – Israel Institute of Technology, Haifa (1982). In 1987 he successfully completed a summer Manager’s Course at Harvard University in the United States. During his service with the IDF, Yigal served in a Construction Center and holds the rank of Major (Res.).
  • Married to Dr. Tzipi Landau, principal of a school in Tel Aviv.
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