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April 20, 2007

Vancouver , B.C., April 20, 2007 Tearlach Resources Ltd., ( , TSX.V : Symbol: TEA) announces it has recommenced production in one of the world’s giant oil fields, of which it owns approximately 5.7%. The Company’s approach and innovative technologies breathes new production life into an old field, with the potential of additional oil recovery.

The Company’s NI 51-101 compliant reserves in the Kern Front Field are currently 396,520 barrels Proven plus Probable of which 228,141 barrels are Proven Producing plus non-Producing, dated June, 2006, by John Yu of Petrotech Engineering Ltd., the Company’s Qualified Person.

Tearlach is currently developing its interests in the Kern Front Oil Field with the a total Enhanced Oil Recovery Development Plan combining 3D and 4D geophysical modelling, planned well development, drilling, and implementation.

The Kern Front Oil Field has historically produced 165 million barrels of oil, and is estimated to have a potential of 500 million barrels of oil remaining. That 1990 estimate was jointly developed by Martin H. Link of Mobile Research & Development Corp, Kenneth P. Helmold of ARCO Oil and Gas Company and William T. Long of OXY USA Inc., representing the then current Field producers. That 500 million barrel estimate was developed prior to the implementation of National Instrument 51-101 and is consequently now not accepted under current NI 51-101 policy, but does represent an estimate of potentially recoverable oil by then qualified professionals operating in the Kern Field using 1990 accepted reporting standards.

The Company’s properties are located within the combined Kern River and Kern Front Oil Fields, and is a joint development of Tearlach Resources Ltd. (60% working interest) ( ; ; Symbol: TEA) and Western States International, Inc. (40% working interest) ( ). United Pacific Energy Corporation is the project’s Operator ( ).

Although the Kern Front Field and the Kern River Field have been in production for many years, the amount of oil they produced to date greatly exceeds original reserve estimates.  A December 20, 2006 article in Newsweek Magazine ( ) which concerns the phenomenon of underestimated oil reserve estimates, notes that ‘[a] most astonishing [example] is the Kern River Field in California, discovered in 1899. In 1942 its “remaining” reserves were estimated at 54 million barrels. Yet, from 1942 to 1986 it produced 736 million barrels, and still had another 970 million remaining.’

More generally, Klett and Schmoker (2003) demonstrated that, from 1981 to 1996, the estimated volume of oil in 186 well-known giant fields in the world increased on average from 617 to 777 million barrels of oil without new discoveries.

The phenomenon of ’reserve growth‘ is directly impacted by ’four fundamental elements: technology, price, political decisions and better knowledge of existing fields‘ (Maugeri, 2004)

The Company is continuing to use its expertise to evaluate additional oil and gas properties for potential acquisition. 

“Malcolm Fraser”


For more information, please contact:

Corporate Communications

Melissa Pelto: (604) 688-5007 Email:

This news release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are not historical facts and are subject to risks and uncertainties which could cause actual results and the timing of certain events to differ materially from those set forth in or implied herein including, without limitation, risks associated with oil and gas exploration, development and production operations and other risks, uncertainties and other factors that are beyond the control of the Company.

The TSX Venture Exchange has not reviewed this News Release and neither approves nor disapproves of the contents hereof, which remain the sole responsibility of the Company.


M. H. Link, K. P. Helmold and W. T. Long, ‘Depositional Environments and Reservoir Characteristics of the Upper Miocene Etchegoin and Chanac Formations, Kern Front Field, California,’ in J. G. Kuespert and S. A. Ried, eds., Structure, Stratigraphy and Hydrocarbon Occurrences of the San Joaquin Basin, California , AAPG, 1990.

T. R. Klett and J. W. Schmoker, ‘Reserves Growth of the World’s Giant Oil Fields,’ in M. T. Halbouty, ed., Giant Oil and Gas Fields of the Decade 1990-1999 , AAPG Memoir 78, 2003, pp. 107-22.

Leonardo Maugeri, ‘Oil: Never Cry Wolf – Why the Petroleum Age is Far from Over,’ in Science , 304, 5674, May, 21, 2004, pp. 1114-1115.  See also Jad Mouawad, ‘Oil Innovations Pump New Life into Old Wells,’ New York Times , March 5, 2007. ).

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