ZION OIL ISSUES UNITS IN INITIAL CLOSING

Subscriptions Still Being Accepted

Dallas, Texas and Caesarea, Israel – October 24, 2008 – Zion Oil & Gas, Inc. (NYSE Alternext US: ZN) announced that, today, the company issued 350,994 units in the initial closing of Zion’s follow-on offering. Each unit consists of one share of Zion stock and one warrant to purchase one share of Zion stock. The units were issued at $10 per unit and the amount raised in this initial closing was $3,509,940.
 
Zion continues to accept subscriptions at $10 per unit and the offering will remain open until the earlier of: (i) January 9, 2009, (ii) the date on which a total of 2,500,000 units have been subscribed and accepted, or (iii) such date as announced by the Company on no less than two trading days’ prior notice.
 
Zion has scheduled November 17, 2008 as the cut-off date for the receipt of documents to be included in the next interim closing.
 
As detailed in its registration statement, Zion is raising funds in order to pursue its planned multi-well drilling program.  Depending on actual amounts raised, Zion intends to carry out the following work program: drill Zion’s second well, on Zion’s Joseph License, to the Triassic Formation (down to a depth of 15,400 feet) and / or to the Permian Formation (down to a depth of 18,040 feet), drill a test well on Zion’s Asher-Menashe License to the Triassic Formation and, if appropriate, the Permian Formation and prepare for the drilling of an additional well on either its Joseph or Asher-Menashe License.
 
Zion’s common stock trades on the NYSE Alternext US under the symbol ZN and Zion’s units will trade under the symbol ZN.U
 
Before you invest, for more complete information about Zion Oil & Gas and its offering, you should read Zion’s registration statement (including a prospectus) together with the other documents Zion has filed with the SEC. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, Zion Oil & Gas or its underwriter, Brockington Securities, Inc, will arrange to send you the prospectus if you request it by calling toll free 1-888-TX1-ZION (1-888-891-9466). Direct links to the SEC location, or to the documents in PDF, may be found on the home page of Zion Oil & Gas, at www.zionoil.com.
   
Zion Oil & Gas, Inc., a Delaware corporation, explores for oil and gas in Israel in areas located onshore between Tel-Aviv and Haifa. It currently holds two petroleum exploration licenses, the Joseph and Asher-Menashe Licenses, between Netanya on the south and Haifa on the north, covering a total of approximately 162,000 acres.
 
FORWARD LOOKING STATEMENTS: Statements in this press release that are not historical fact, including statements regarding the future effectiveness of Zion’s registration statement, matters regarding the offering and closings thereof, Zion’s planned operations, potential results thereof and plans contingent thereon, including selection of potential drilling targets and locations, are forward-looking statements as defined in the “Safe Harbor” provisions of the Private Securities Litigation Reform Act of 1995. These forward looking statements are based on assumptions that are subject to significant known and unknown risks, uncertainties and other unpredictable factors, many of which are described in Zion’s periodic reports filed with the SEC and are beyond Zion’s control. These risks could cause Zion’s actual performance to differ materially from the results predicted by these forward-looking statements. Zion can give no assurance that the expectations reflected in these statements will prove to be correct and assumes no responsibility to update these statements.
 
Zion’s homepage may be found at: www.zionoil.com

Zion Oil & Gas Signs Drilling Contract

Caesarea, Israel – September 15, 2008 – Zion Oil & Gas, Inc. (Amex: ZN) of Dallas, Texas and Caesarea, Israel announced today that it and Aladdin Middle East (“AME”) have signed a drilling contract. Last week, Zion’s Chief Executive Officer, Richard Rinberg, and the President and Chief Operating Officer of Zion, Glen Perry, visited AME’s offices in Ankara, Turkey, in order to inspect AME’s rig and equipment yard, meet with key AME personnel and finalize the terms of the drilling contract.

The contract was executed by both parties on September 12, 2008. Under the terms of the contract AME has committed to provide a completely refurbished and updated 2,000 horsepower rig and crews (anticipated to arrive in Israel in November 2008) and to drill Zion’s planned Ma’anit-Rehoboth #2 well ‘directionally’ to below 18,000 feet. The well is planned to appraise the strong shows seen in the Triassic (during the drilling of the Ma’anit #1 well) and to drill deeper into the Permian formation.  It will be the first well drilled to the Permian in Northern Israel. The commencement of the drilling program is subject to receipt of various government permits and raising additional capital, whether through Zion’s current public offering or otherwise.

Richard Rinberg, Zion’s Chief Executive Officer, said today, “This is an important milestone for Zion, one which we have been working towards for a long time.  We are very impressed by the quality of AME’s rig and the professionalism of their people.  We appreciate the hospitality shown to us by AME during our visit and are excited about working with AME and drilling our next wells, just as soon as we can.

Additional information relating to the drilling contract and related matters will be included in Zion’s Current Report on Form 8-K, that Zion will be filing soon with the Securities and Exchange Commission.

Zion Oil & Gas, a Delaware corporation, explores for oil and gas in Israel in areas located onshore between Tel-Aviv and Haifa. It currently holds two petroleum exploration licenses, the Joseph and Asher-Menashe Licenses, between Netanya on the south and Haifa on the north covering a total of approximately 162,000 acres.

AME is an independent oil and gas exploration and production company, incorporated in Delaware in 1962, with its head office in Wichita, Kansas. AME has drilled more than 130 exploration and development wells in Turkey for major oil companies, including Exxon, Mobil, Wintershall AG, MOL, Placid Oil, Neste Oy, Terralliance (USA), JKX (UK) and TETHYS (Sweden). Its rig inventory includes 11 drilling and workover rigs and AME’s personnel have enormous work experience in many countries, including Turkey, Bulgaria, Azerbaijan, Kazakhstan, Turkmenistan and Georgia.