Donnybrook Announces Reserves

CALGARY, ALBERTA--(Marketwire - April 5, 2012) - Donnybrook Energy Inc. (TSX VENTURE:DEI) ("Donnybrook" or the "Company") reports the results of its December 31, 2011 Reserves Assessment and Evaluation of certain of its Alberta oil and gas properties, as evaluated by GLJ Petroleum Consultants ("GLJ") in accordance with National Instrument 51-101 - Standards of Disclosure for Oil and Gas Activities ("NI 51-101").

A summary of the Company's reserves volumes according to reserve category as at December 31, 2011 is as provided in the following table. Unless otherwise stated, the reserves information included in this release is stated on a "company interest" basis, which represents Donnybrook's working interest (operated and non-operated) share of remaining reserves before deduction of royalties and including any royalty interests. Numbers presented in table may not add exactly due to rounding.

		Light and Medium Oil	Natural Gas	Natural Gas Liquids	Total Oil Equivalent
Reserves Category		(Mbbl)	(MMcf)	(Mbbl)	(Mbbl)
Proved
	Producing	34	506	5	123
	Non-Producing	4	992	33	202
	Undeveloped	107	6,448	105	1,287
Total Proved		145	7,946	142	1,611
Probable		142	8,760	155	1,756
Total Proved plus Probable		287	16,706	297	3,368

A summary of the Company's estimated future net revenues associated with Donnybrook's reserves as at December 31, 2011 based on the GLJ December 31, 2011 price forecast is provided in the following table. It should not be assumed that the net present values estimated by GLJ represent the fair market value of the reserves. Numbers presented in table may not add exactly due to rounding.

Before Income Taxes Discounted at (%/year)

		0%	5%	10%	15%	20%
Reserves Category		(M$)	(M$)	(M$)	(M$)	(M$)
Proved
	Producing	4,934	4,223	3,696	3,293	2,975
	Non-Producing	5,597	4,356	3,568	3,032	2,648
	Undeveloped	25,344	13,769	7,539	3,807	1,380
Total Proved		35,875	22,348	14,803	10,132	7,002
Probable		51,557	29,832	19,792	14,300	10,906
Total Proved plus Probable		87,432	52,180	34,595	24,432	17,908

Relevant portions of the GLJ December 31, 2011 price forecast used in the Company's evaluation are as follows:

	Natural Gas		Light Crude Oil		Pentanes Plus	Inflation	Exchange
	Henry Hub	AECO Gas Price	WTI	Edmonton	Edmonton	Rates	Rate
Year	($U.S./MMBtu)	($CDN/MMBtu)	($US/bbl)	($CDN/bbl)	($CDN/bbl)	(%/year)	($US/$CDN)
Forecast
2012	3.80	3.49	97.00	97.96	107.76	2.0	0.980
2013	4.41	4.13	100.00	101.02	108.09	2.0	0.980
2014	4.81	4.59	100.00	101.02	105.06	2.0	0.980
2015	5.18	5.05	100.00	101.02	105.06	2.0	0.980
2016	5.54	5.51	100.00	101.02	105.06	2.0	0.980
2017	5.89	5.97	100.00	101.02	105.06	2.0	0.980
2018	6.00	6.21	101.35	102.40	106.49	2.0	0.980
2019	6.00	6.33	103.38	104.47	108.65	2.0	0.980
2020	6.00	6.46	105.45	106.58	110.84	2.0	0.980
2021	6.00	6.58	107.56	108.73	113.08	2.0	0.980

Further information relating to Donnybrook is also available on its website at www.donnybrookenergy.ca.

ON BEHALF OF THE BOARD OF DONNYBROOK ENERGY INC.

Malcolm F. W. Todd, Chief Executive Officer

FORWARD-LOOKING STATEMENTS

Certain information set forth in this news release contains forward-looking statements or information ("forward-looking statements"), including statements regarding the Company's future net revenues. By their nature, forward-looking statements are subject to numerous risks and uncertainties, some of which are beyond Donnybrook's control, including the impact of general economic conditions, industry conditions, volatility of commodity prices, currency fluctuations, imprecision of reserve estimates, environmental risks, operational risks in exploration and development, competition from other industry participants, the lack of availability of qualified personnel or management, stock market volatility and the ability to access sufficient capital from internal and external sources. Although Donnybrook believes that the expectations in our forward-looking statements are reasonable, our forward-looking statements have been based on factors and assumptions concerning future events which may prove to be inaccurate. Those factors and assumptions are based upon currently available information. Such statements are subject to known and unknown risks, uncertainties and other factors that could influence actual results or events and cause actual results or events to differ materially from those stated, anticipated or implied in the forward looking information. As such, readers are cautioned not to place undue reliance on the forward looking information, as no assurance can be provided as to future results, levels of activity or achievements. The risks, uncertainties, material assumptions and other factors that could affect actual results are discussed in our Annual Information Form and other documents available at www.sedar.com. Furthermore, the forward-looking statements contained in this document are made as of the date of this document and, except as required by applicable law, Donnybrook does not undertake any obligation to publicly update or to revise any of the included forward-looking statements, whether as a result of new information, future events or otherwise. The forward-looking statements contained in this document are expressly qualified by this cautionary statement. This news release shall not constitute an offer to sell or the solicitation of any offer to buy securities in any jurisdiction.

Where amounts are expressed on a barrel of oil equivalent ("BOE") basis, natural gas volumes have been converted to oil equivalence at six thousand cubic feet per barrel. The term BOE may be misleading, particularly if used in isolation. A BOE conversion ratio of six thousand cubic feet per barrel is based on an energy equivalency conversion method primarily applicable at the burner tip and does not represent a value equivalency at the wellhead. References to oil in this discussion include crude oil and natural gas liquids ("NGLs"). NGLs include condensate, propane, butane and ethane. References to gas in this discussion include natural gas.