C.A.T. Oil lLsting With IPO In Prime Standard - Further Expansion Of Investor Access To Companies Active In Russia - Riess: Reinforces Deutsche Börse As Premier Eurozone Listing Platform

C.A.T. Oil AG held it’s IPO in the Prime Standard of the Frankfurt Stock Exchange (FWB) on Thursday. Prime Standard is Deutsche Börse’s listing segment for domestic and international companies targeting international investors. C.A.T Oil’s listing expands opportunities for investors covering companies active in Russia. Stocks from 35 Russian companies are tradable on the Frankfurt Stock Exchange, with a trading turnover of 8 billion euros in 2005. Investors can access more than 7,200 stocks of companies from 74 countries and territories around the world quoted and listed on the EU and exchange regulated Markets operated by Deutsche Börse.

“Deutsche Börse has considerably improved its primary market offering over recent years, making it the listing platform of choice within the Euro-zone,” said Rainer Riess, Managing Director of Deutsche Börse AG. “We welcome C.A.T. Oil AG as the first foreign issuer of the year in the Prime Standard segment. By choosing to list in Frankfurt C.A.T. Oils AG will have access to one of the most efficient and high-performance capital markets in the world, using the world’s largest stock exchange network. Riess highlighted the fact that Deutsche Börse’s listing fees not only range amongst the lowest of any leading exchange operator, but are also identical for international and domestic companies.

According to C.A.T. Oil AG, headquartered in Baden, Austria, the company is one of the leading providers of oilfield services in Russia and Kazakhstan, specializing in well productivity enhancement. The two operating subsidiaries in Russia provide a wide spectrum of services to improve the flow of oil and natural gas throughout the public life of a well.

Issuers can choose between three clearly defined market segments for the admission of their shares to the FWB. Exchange regulated Entry Standard and EU Regulated General Standard and Prime Standard. Companies in the Prime Standard segment agree to comply with additional transparency requirements based on international best-practice.

IPO on the FWB Frankfurt Stock Exchange: C.A.T. Oil AG

ISIN: AT0000A00Y78
Type of Admission: New Issue
First Trading Day: 4 May 2006
Market Segment: Prime Standard (Official Market) Sector/Industry Group: Basic Resources/Oil & Gas Issue Price (in €):
€15.00 (US$ 18.92) Placement Volume in Shares: 17,000,000 (excl. Greenshoe of 2,550,000) First Price (in €): €17.20 (US$ 21.69)

Underwriter: Sole Global Coordinator/Sole Bookrunner: Dresdner Kleinwort Wasserstein Co-Lead Manager: Erste Bank Austria Lead broker: Hans-Wilhelm Weber Wertpapierhandels GmbH

FWB Frankfurt Stock Exchange – New Issues and New Admissions in 2006 Prime Standard: 6 New Issues, 1 Dual Listing General Standard: 1 New Issue Entry Standard: 5 New Issues, 5 New Admissions and 4 Transfers from the Open Market Open Market:11 New Admissions