updated 8/27/2010 4:53:29 AM ET 2010-08-27T08:53:29

DALLAS and CAESAREA, Israel, Aug. 26, 2010 (GLOBE NEWSWIRE) -- Zion Oil & Gas, Inc. (Nasdaq:ZN) announced today that drilling operations have begun on its Ma'anit-Joseph #3 well, in its Joseph License area, onshore Northern Israel. The drilling operations are expected to last approximately six months.

Utilizing the 2,000 horsepower drilling rig used to drill Zion's previous wells, Zion has commenced drilling its Ma'anit-Joseph #3 well, initially towards its secondary target, Triassic age lithology, expected below approximately 10,827 feet (3,300 meters). Zion then plans to continue drilling to its primary target, Permian age lithology, down to a planned total depth below approximately 19,357 feet (5,900 meters).

The rig will operate on a 24-hour basis utilizing two drilling crews on 12-hour shifts. On a continual basis, samples will be collected by Zion's wellsite geologists, analyzed for both hydrocarbon content and lithology and then stored.

Zion's Chief Executive Officer, Richard Rinberg, said today, "We are excited to be drilling the Ma'anit-Joseph #3 well and continue to be optimistic about the possibility of recovering hydrocarbons on our license and permit areas, onshore Israel, especially due to the U.S. Geological Survey report, published in April 2010, containing their assessment that there may be 1.7 billion barrels of recoverable oil and 122 trillion cubic feet of recoverable gas in the Levant Basin, as all of Zion's exploration rights fall within the area of the Levant Basin."

For regular updates on the drilling activity, please visit Zion's website at: www.zionoil.com

Zion's common stock trades on the NASDAQ Global Market under the symbol "ZN" and Zion's warrants trade under the symbol "ZNWAW".

Zion Oil & Gas, a Delaware corporation, explores for oil and gas in Israel in areas located on-shore between Haifa and Tel Aviv. It currently holds two petroleum exploration licenses, the Joseph and the Asher-Menashe Licenses, between Netanya, in the south, and Haifa, in the north, covering a total of approximately 162,000 acres and the Issachar-Zebulun Permit Area, adjacent to and to the east of Zion's Asher-Menashe license area, covering approximately 165,000 acres. Zion's total petroleum exploration rights area is approximately 327,000 acres.

FORWARD LOOKING STATEMENTS: Statements in this communication that are not historical fact, including statements regarding Zion's planned operations, geophysical and geological data and interpretation, anticipated attributes of geological strata being drilled, the procurement of needed drilling permits, the presence or recoverability of hydrocarbons, the sufficiency of cash reserves, ability to raise additional capital, timing and potential results thereof and plans contingent thereon 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

© Copyright 2012, GlobeNewswire, Inc. All Rights Reserved

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