DALLAS and CAESAREA, Israel, Sept. 20, 2010 (GLOBE NEWSWIRE) -- Zion Oil & Gas, Inc. (Nasdaq:ZN) announced today that it intends to launch a rights offering. Under the rights offering, Zion will distribute non-transferable subscription rights to holders of Zion's common stock on the close of business on the record date of September 28, 2010, to purchase their pro rata portion of approximately 3.8 million Units of Zion's securities. Each Unit will consist of one (1) share of Zion's common stock and one (1) warrant to purchase an additional share of Zion's common stock at an exercise price of $4.00.

Under the rights offering, stockholders of record on the record date will therefore have the right to subscribe for eighteen (18) Units for every one hundred (100) shares of common stock owned on the record date, equivalent to 0.18 subscription rights for each share of common stock owned on the record date.

Each whole subscription right will entitle the stockholders of record on the record date to subscribe for one Unit at the per Unit purchase price of $5.00. The warrant will be exercisable for a two year period beginning on the closing date after the rights offering expires.

If the Company receives valid subscriptions for all of the Units available under the rights offering, then the gross proceeds of the offering will be approximately $19 million, before offering related expenses which the Company estimates should not exceed $150,000. This figure does not include proceeds, if any, from any future exercises of the warrants.

The rights offering is planned to commence as soon as practicable after the record date and to continue through 5:00 p.m. Eastern Standard time on November 15, 2010, subject to Zion's right to extend the offering in its sole discretion.

The rights offering will include an over-subscription privilege, allowing a stockholder who exercises all of their basic subscription privilege the right to purchase additional Units that remain unsubscribed at the expiration of the rights offering, subject to the availability and pro rata allocation of Units among stockholders exercising their over-subscription right.