21 May 2010 – US Oil and Gas Plc – Posting of Notice Re: Cancellation of EGM

U.S. Oil and Gas plc

(“the “Company”)

Posting of Notice Re: Cancellation of EGM

U.S. Oil and Gas plc (PLUS: USOP), the oil and gas exploration company with exploration assets in Nye County, Nevada, announces that a notice regarding the cancellation of an EGM has been posted to shareholders. Copies of the notice will be available for inspection for a period of one month from today’s date, free of charge, at the Company’s Registered Office, which is at:

4th Floor

8-34 Percy Place

Dublin 4

Republic of Ireland

THE DIRECTORS OF THE COMPANY ACCEPT RESPONSIBILITY FOR THE CONTENTS OF THIS ANNOUNCEMENT.

For further information contact:

US Oil and Gas plc

Brian McDonnell, Chief Executive Officer +353 (0) 872383419

[email protected]

SVS Securities plc – PLUS Corporate Adviser

Peter Ward / Alexander Brearley +44 (0)20 7638 5600

Notes to Editors

US Oil and Gas plc is a PLUS (Ticker: USOP) listed oil and gas exploration company with a strategy to identify and acquire oil and gas assets in the early phase of the upstream life-cycle and mature them into marketable opportunities for the medium- and large-sized oil companies.

The Company’s main asset is in Nye County, Nevada where it holds the entire share capital of the US-based company Major Oil International LLC. Major Oil has acquired, and intends to acquire, rights to exploration and development acreage in two high potential resource areas in Hot Creek Valley, Nye County, adjacent to the oil and gas rich Railroad Valley area of Nevada, both of which are part of the Sevier Thrust of central Nevada and western Utah, USA.

For further information please refer to our website at: www.usoil.us

U.S. OIL AND GAS PLC

(END) Dow Jones Newswires

May 21, 2010 06:14 ET (10:14 GMT)

Archive ref: SN20100521002448.nml

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