7 July 2015 – U.S. Oil & Gas plc – Closure of the GXG Marketplace

U.S. Oil & Gas Plc.

(“U.S. Oil” or the “Company”)

Closure of the GXG Marketplace

U.S. Oil & Gas Plc (GXG London: USOP, OTC New York: USOPY), the oil and gas
exploration company with assets in Nevada, makes the following announcement.

In a press release dated Monday, 6th July 2015 17:52 CEST, GXG Markets
announced its intention to voluntarily relinquish its Danish Market Operator
licenses. In the light of this development, the Board of US Oil & Gas plc
wishes to assure shareholders that the priority for the Company will be to
ensure that, if possible, trading in the company’s securities continues with
minimum disruption to shareholders.

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

Neither this announcement nor the information contained herein constitutes an
offer or solicitation by U.S. Oil and Gas plc for the purchase or sale of any
securities nor does it constitute a solicitation to any person in any
jurisdiction where solicitation would be unlawful.

For further information contact:

Brian McDonnell, Chief Executive Officer +353 (1) 631 9022

Alexander David Securities Ltd – Corporate Finance Adviser
David Scott +44 (0) 20 7448 9820
James Dewhurst +44 (0) 20 7448 9820
Email: [email protected]

GXG Markets
Peter Almberg/Alex Benger +44 (0) 20 7653 1935
[email protected]

ADR Broker Desk, Deutsche Bank
United Kingdom

Simon Davies and Richard Willis
Tel: +44 (0) 20 7547-6500
Fax: +44 (0) 20 7547-9995
E-mail: [email protected]

USA
Jay Berman
Tel: +1 212 250-9100
Fax: +1 732 544-6346
E-mail: [email protected]

About American Depositary Receipts (ADRs)
An ADR is a negotiable certificate that represents ownership in securities of a
non U.S. company. ADRs are issued by a sponsoring U.S. bank and denominated in
U.S. dollars. An ADR represents a specified number of shares (or one share) in
a foreign stock that is traded on a U.S. exchange.

ADRs allow foreign companies shares to be traded in a similar manner to shares
in U.S. companies on the New York Stock Exchange (NYSE), the American Stock
Exchange (AMEX), NASDAQ and the over-the-counter (OTC) market. ADRs enable U.S.
citizens to acquire shares in a foreign company without the need for cross
border or cross currency transactions. Any dividends and capital gains are in
U.S. dollars.

About U.S. Oil & Gas

U.S. Oil & Gas plc, (GXG London: USOP, OTC New York: USOPY), is an 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. The Company’s
main asset is in Nye County, Nevada where it holds the entire share capital of
US-based company, Major Oil International LLC (“Major Oil”). Major Oil has
acquired rights to exploration and development acreage 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

Ends

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