“It is an operationalblueprint for Latin America in general where there is a growing demand forsuch services.”The new service will be sold primarily through Telcel Retail Sales Centersinitially in Mexico City and then released to customers across the rest of thecountry throughout the year.About TelcelTelcel is the leading wireless services provider in Mexico with more than 56million subscribers and about 71% of the Mexican wireless market at the end ofDecember 2008. In operation since 1989, Telcel offers a wide array of voiceand data services in the largest wireless network in Mexico usingGSM/GPRS/EDGE and UMTS/HSDPA technologies. Telcel is a subsidiary of AmericaMovil (NYSE: AMX) (Nasdaq: AMOV) (BMV: AMX), the leading provider of wirelessservices in Latin America. As of February 5, 2009 it had over 182 millionwireless subscribers.For more information about Telcel, please visit http:// GE’s Security BusinessGE Security, Inc., a business of GE Enterprise Solutions (NYSE: GE), is aleading supplier of security and life safety technologies, with operations inmore than 35 countries and $1.8 billion in annual sales. GE Security offersone of the industry’s broadest product portfolios, including access control,explosives and narcotics detection, fire detection, intrusion, key managementand video surveillance. GE Security’s products are used to protect people andproperty across a wide range of industries, including aviation, banking andfinance, education, government and military, healthcare, law enforcement,residential, retail, stadiums and event venues, and transportation.GESecurity was honored with Frost & Sullivan’s 2008 North American VideoSurveillance Solutions Company of the Year Award for its industry leadingvideo portfolio and integration strategy vision and execution.For moreinformation about GE Security, please visit http:// Numerex Numerex Corp. (Nasdaq: NMRX) is the machine-to-machine (M2M) provider ofchoice to some of the world’s largest organizations delivering secure,all-around solutions through a single source.

The Company’s M2M expertiseenables its customers to efficiently, reliably, and securely monitor andmanage assets remotely whenever and wherever needed, while simplifying andspeeding up development and deployment. Numerex is the first M2M serviceprovider in North America to carry the ISO 27001 information securitycertification. Numerex DNA(TM) offerings include hardware Devices, Networkservices, and software Applications offered as individual components or asbundled services At Numerex, “Machines Trust Us(TM)”. For additionalinformation, please visit Statements contained in this press release concerning Numerex that are nothistorical fact are “forward-looking” statements and involve important risksand uncertainties. Such risks and uncertainties, which are detailed inNumerex’s filings with the Securities and Exchange Commission, could causeNumerex’s results to differ materially from current expectations as expressedin this press release. These forward-looking statements speak only as of thedate of this press release, and Numerex assumes no duty to upgradeforward-looking statements.SOURCENumerex Corp.Numerex Corp., Mike Lang, +1-770-485-2568; Investor Relations, Seth Potter,+1-646-277-1230. DALLAS & CAESAREA, Israel–(Business Wire)–Zion Oil & Gas, Inc.

(NYSE AMEX: ZN), announced that the registration statementfor its previously announced common stock rights offering was declared effectiveby the Securities and Exchange Commission on April 27, 2009. The offering willbe open to all holders of record on May 4, 2009 (the “Record Date”).Under the terms of the rights offering, described in the prospectus contained inthe registration statement, Zion will distribute to each person who own sharesof Zion common stock on the Record Date, non-transferable subscription rights topurchase shares of Zion`s common stock. Each shareholder of record on the RecordDate will receive .375 of a subscription right for each share of common stockowned on the Record Date. This is equivalent to three (3) subscription rightsfor every eight (8) shares of common stock owned on the Record Date. The Companywill not distribute any fractional rights; fractional subscription rights willbe rounded up to the next largest whole number. Each whole subscription rightentitles the holder to purchase one share of common stock at a purchase price of$5.00 per share.

Shareholders who exercise their rights in full will also beentitled to purchase additional shares pursuant to an over-subscription right tothe extent holders do not fully subscribe for their basic subscription rights.The subscription rights are non-transferable. The aggregate amount of stockavailable in the rights offering is 4.2 million shares. As soon as possible after the Record Date, Zion plans to mail to holders of itscommon stock (as of the close of business on the Record Date) a prospectus andother items necessary for exercising the rights. Shareholders who hold theirshares in a bank or broker name will receive the rights offering material fromtheir bank or broker. The prospectus will contain a description of the rightsoffering and other information. The subscription rights will be exercisableuntil the close of business on June 10, 2009, unless Zion extends the offering.

Zion Oil & Gas, a Delaware corporation, explores for oil and gas in Israel inareas located onshore between Tel-Aviv and Haifa. Zion currently holds twopetroleum exploration licenses, the Joseph and Asher-Menashe Licenses, betweenNetanya on the south and Haifa on the north, covering a total of approximately162,000 acres. Zion has applied for a further permit area (tentatively named byZion the Issachar-Zebulun Permit Area) and the application, if granted, willincrease Zion`s total license area to over 400,000 acres. FORWARD LOOKING STATEMENTS: Statements in this press release that are nothistorical fact, including statements relating to Zion`s expectations regardingthe rights offering, the timing of any closing and the results thereof, Zion`splanned operations, potential results thereof and plans contingent thereon, areforward-looking statements as defined in the “Safe Harbor” provision of thePrivate Securities Litigation Reform Act of 1995. These forward-lookingstatements are based on assumptions that are subject to significant known andunknown risks, uncertainties and other unpredictable factors, many of which aredescribed in the Prospectus and are beyond Zion`s control.