TMX group

CALGARY, AB, Nov. 23 /CNW Telbec/ - Edmund M. Shimoon, President & CEO of
Calvalley Petroleum Inc., (TSX: CVI.A) is pleased to announce the following
appointments to its leadership team. These new positions will bolster the
Company's management as it initiates the development of Block 9 in the
Republic of Yemen.

Donald W. Shepherd, BSc, P. Eng.
Vice President Engineering and Production

Mr. Shepherd was appointed Vice President Engineering and Production on
November 1, 2005. He received his Bachelor of Science Degree in Electrical
Engineering from the University of Saskatchewan in 1970 and is a member of
APEGGA and SPE. Since that time he has had a varied career including senior
engineering and management positions with the Saudi Arabian Oil Company
("Aramco"). Mr. Shepherd worked for Aramco from 1991 to 2005 and consulted
with APA Petroleum Engineers until his recent appointment to Calvalley.
Mr. Shepherd's experience in Saudi Arabia included senior responsibility for
the first installation of electrical submersible pumps in the giant Ghawar oil
field. Prior to moving to Saudi Arabia Mr. Shepherd was the President of
Newscope Resources Limited for five years and before that held senior
positions with Morgan Hydrocarbons and Roxy Petroleum. He started his career
with Imperial Oil where he worked in both Canada and Libya (Exxon).
Mr. Shepherd will have overall responsibility for the installation of early
production facilities and the tying-in of wells at the Hiswah field.

Scott Barron, BSc (Hons)
Manager Exploration

Mr. Barron has been a member of Calvalley's geological team for the past
four years and is now heading up the Geological and geophysical efforts of the
Company. He is a senior geologist with experience in both international and
domestic projects. In pursuing the development of Block 9, Mr. Barron brings
to the company his Yemen experience with CanOxy, Kappa Energy and Bakrie
Minarak Petroleum. Prior to joining Calvalley in 2001 Mr. Barron was Manager
Development Geology with Gulfstream Resources (now Anadarko) working on
international oil and gas development projects located offshore Qatar, onshore
Oman and Madagascar. Prior to Gulfstream, Mr. Barron was senior staff
geologist for Canadian Occidental Petroleum (Nexen) in the development of the
oil fields of the Masila Block 14.

Cameron W. Dow, B.A., C.A.
Chief Financial Officer

Mr. Dow has been appointed acting CFO of the Company effective
November 28, 2005. He has been a partner with the accounting firm Daunheimer
and Dow LLP for the past thirteen years. Prior to joining Daunheimer and Dow,
he was in private practise with Deloitte and Touche LLP and was an account
executive with Merrill Lynch Securities. Mr. Dow's clients have included both
public and private corporations, many in the oil and gas sector and the scope
of his advice to those clients and their boards of directors has included tax,
finance and business planning, divestitures and acquisitions and financial
presentation. Mr. Dow has focused extensively on tax matters over the past
several years and has authored and taught a number of income tax, estate
planning and general accounting courses. As Calvalley initiates production
from Yemen, expected later this year, Mr. Dow will have overall responsibility
for all financial, accounting and administrative matters.

THE TORONTO STOCK EXCHANGE HAS NOT REVIEWED AND DOES NOT ACCEPT
RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE.

This press release may contain forward-looking statements, including
expectations of future production, cash flow and earnings. These statements
are based on current expectations that involve a number of risks and
uncertainties, which could cause actual results to differ materially from
those anticipated or implied in the forward-looking statements. These risks
include but are not limited to: the risks associated with the oil and gas
industry (e.g. operational risks in development, exploration and production;
delays or changes in plans with respect to exploration or development projects
or capital expenditures; the uncertainties of reserve estimates; the
uncertainty of estimates and projections related to production, costs and
expenses, and health, safety and environmental risks), commodity price, price
and exchange rates fluctuations and uncertainties resulting from potential
delays or changes in plans with respect to exploration or development projects
or capital expenditures. Additional information on these and other factors
that could affect Calvalley's operations or financial results are included in
Calvalley's reports on file with Canadian securities regulatory authorities.
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