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Release

TransGlobe Energy Corporation Announces Successful Appraisal Well and Production Increases in Republic of Yemen

CALGARY, ALBERTA--(CCNMatthews - Apr 28, 2004) - TransGlobe 
Energy Corporation ("TransGlobe" or the "Company") is pleased to 
announce a successful appraisal well at An Nagyah #6 and the 
increase in oil production on Block S-1 in the Republic of Yemen. 
 

BLOCK S-1, REPUBLIC OF YEMEN (25% working interest)  

Successful appraisal well at An Nagyah #6:  

The An Nagyah #6 well was drilled to a total depth of 1,207 
meters and completed as an Upper Lam oil well, flowing at a 
stabilized rate of 1,140 barrels of light (42 degree API) oil per 
day on a 24 hour test.  

The An Nagyah #6 well encountered the Upper Lam sandstones with a 
29 meter oil bearing interval. A 13.0 meter reservoir interval in 
the oil bearing section was perforated between 1,040 and 1,053 
meters. The perforated interval flowed at 1,140 barrels per day 
of light oil and 480 thousand cubic feet of natural gas per day 
on a 30/64 inch choke at 455 psi flowing pressure. No water was 
produced during the test period.  

An Nagyah #6 is located 1.2 kilometers east of the An Nagyah #4 
well which tested light sweet oil at 1,378 Bopd from a 30 meter 
perforated interval (May 14, 2003 announcement). The An Nagyah #6 
well will be equipped for early production via trucking after the 
drilling rig is moved to An Nagyah #7 later this week. The An 
Nagyah #7 well is located southwest of the An Nagyah #5 well 
(March 31, 2004 announcement) and is expected to commence 
drilling in 7-10 days. Following An Nagyah #7, it is expected the 
drilling rig will be moved to Harmel #2 to appraise the shallow 
depth, medium gravity oil discovered in Harmel #1. Additional 
development wells in the An Nagyah pool are expected to be 
drilled in the third and fourth quarters of 2004 and into 2005.  

Block S-1 An Nagyah Production Increases:  

The early production (trucking) facilities at the An Nagyah field 
were installed during the first quarter 2004 and field production 
operations commenced on An Nagyah #4 on March 28, 2004. With the 
addition of An Nagyah #5 in April, production has increased to 
approximately 2,000 Bopd. It is anticipated that production will 
increase to approximately 2,500 Bopd (approximately 625 Bopd to 
TransGlobe) with the addition of An Nagyah #6 in May and with the 
expansion of the trucking operations. The oil production is 
currently being trucked 18 miles to the Jannah Hunt facility 
where it is blended with the Marib light crude and transported by 
pipeline to the Ras Isa loading terminal on the Red Sea.  

Trucking operations will be phased out following the construction 
of a central production facility ("CPF") at An Nagyah and a 28 
kilometer (18 mile) pipeline to the Jannah Hunt export pipeline. 
The pipeline and facilities are expected to be operational by 
early 2005. The 10 inch pipeline is designed to allow an ultimate 
capacity of 80,000 Bopd so that future discoveries can be placed 
on stream quickly. The CPF is designed for an initial capacity of 
10,000 Bopd (2,500 Bopd to TransGlobe), with expansion 
capabilities. The detailed engineering bids were received and the 
contract is expected to be awarded by late April/early May. Bid 
requests for long lead time major equipment have been issued and 
are expected to be awarded during the 2nd quarter of 2004.  

TransGlobe is an international exploration and production company 
with its corporate office in Calgary, Alberta. Block S-1 is the 
second producing property for the Company in the Republic of 
Yemen. The Company holds a 13.8% working interest in Block 32 in 
the Republic of Yemen where oil production has been underway for 
more than three years. TransGlobe also has producing oil and gas 
properties in Alberta, Canada.  

This release includes certain statements that may be deemed to be 
"forward-looking statements" within the meaning of the US Private 
Securities Litigation Reform Act of 1995. All statements in this 
release, other than statements of historical facts that address 
future production, reserve potential, exploration drilling, 
exploitation activities and events or developments that the 
Company expects, are forward-looking statements. Although 
TransGlobe believes the expectations expressed in such 
forward-looking statements are based on reasonable assumptions, 
such statements are not guarantees of future performance and 
actual results or developments may differ materially from those 
in the forward-looking statements. Factors that could cause 
actual results to differ materially from those in forward-looking 
statements include oil and gas prices, exploitation and 
exploration successes, continued availability of capital and 
financing, and general economic, market or business conditions.  


/T/

(signed) Ross Clarkson

Ross G. Clarkson,
President & C.E.O.


Executive Offices:
#2900, 330 -5th Avenue, S.W.,
Calgary, AB T2P 0L4

/T/

-30-

TransGlobe Energy Corporation
Ross G. Clarkson
President & C.E.O.
(403) 264-9888
(403) 264-9898 (FAX)

or

TransGlobe Energy Corporation
Lloyd W. Herrick
Vice President & C.O.O.
(403) 264-9888
(403) 264-9898 (FAX)
Email: trglobe@trans-globe.com
Website: www.trans-globe.com

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