NEWSROOM

PACIFIC RUBIALES ANNOUNCES WEBCAST AND DIAL IN INFORMATION FOR ITS ANNUALGENERAL MEETING ON MAY 31, 2011
May 27, 2011

TORONTO, May 27, 2011 /CNW/ - Pacific Rubiales Energy Corp. (TSX: PRE) (BVC: PREC) is pleased to announce the dial in information for their Annual General Meeting, being held on May 31, 2011 at 10:00 a.m. (Toronto time) / 9:00 a.m. (Bogota time) in the Governor General's Room of the Hilton Hotel, 145 Richmond Street West, Toronto, Ontario, Canada.

Webcast Information

The Annual General Meeting will be webcast live. Analysts and interested investors can access the webcast through the Company's website at www.pacificrubiales.com.

Conference Call

The Annual General Meeting conference call will be held in English. A Spanish translator will be available. Analysts and interested investors are invited to participate as follows:

Participant Number (International/Local): (647) 427.7450

Participant Number (Toll free Colombia): 01.800.518.0661

Participant Number (Toll free North America): (888) 231.8191

Conference ID (English): 67185044

Conference ID (Spanish): 67376823

The conference call will be available for replay for two weeks, starting at 12:00 pm (EST) on May 31, 2011.

The encore will be available in both English and Spanish.

Participant Number (Toll free): 1.800.642.1687

Participant Numbers (Local):
403.451.9481
778.371.8506
416.849.0833
613.667.0035
514.807.9274
902.455.3955

Conference ID (English): 67185044

Conference ID (Spanish): 67376823

Pacific Rubiales, a Canadian-based company and producer of natural gas and heavy crude oil, owns 100 percent of Meta Petroleum Corp., a Colombian oil operator which operates the Rubiales and Piriri oil fields in the Llanos Basin in association with Ecopetrol, S.A., the Colombian national oil company. The Company is focused on identifying opportunities primarily within the eastern Llanos Basin of Colombia as well as in other areas in Colombia and northern Peru. Pacific Rubiales has working interests in 45 blocks in Colombia, Peru and Guatemala. 

The Company's common shares trade on the Toronto Stock Exchange and La Bolsa de Valores de Colombia under the ticker symbols PRE and PREC, respectively. 

Boe may be misleading, particularly if used in isolation. A boe conversion ratio of 5.7 mcf: 1 bbl is based on an energy equivalency conversion method primarily applicable at the burner tip and does not represent a value equivalency at the wellhead. 

Cautionary Note Concerning Forward-Looking Statements

This press release contains forward-looking statements. All statements, other than statements of historical fact, that address activities, events or developments that the Company believes, expects or anticipates will or may occur in the future (including, without limitation, statements regarding estimates and/or assumptions in respect of production, revenue, cash flow and costs, reserve and resource estimates, potential resources and reserves and the Company's exploration and development plans and objectives) are forward-looking statements. These forward-looking statements reflect the current expectations or beliefs of the Company based on information currently available to the Company. Forward-looking statements are subject to a number of risks and uncertainties that may cause the actual results of the Company to differ materially from those discussed in the forward-looking statements, and even if such actual results are realized or substantially realized, there can be no assurance that they will have the expected consequences to, or effects on the Company. Factors that could cause actual results or events to differ materially from current expectations include, among other things: uncertainty of estimates of capital and operating costs, production estimates and estimated economic return; the possibility that actual circumstances will differ from the estimates and assumptions; failure to establish estimated resources or reserves; fluctuations in petroleum prices and currency exchange rates; inflation; changes in equity markets; political developments in Colombia or Peru; changes to regulations affecting the Company's activities; uncertainties relating to the availability and costs of financing needed in the future; the uncertainties involved in interpreting drilling results and other geological data; and the other risks disclosed under the heading "Risk Factors" and elsewhere in the Company's annual information form dated March 10, 2011 filed on SEDAR at www.sedar.com. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Although the Company believes that the assumptions inherent in the forward-looking statements are reasonable, forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein.

For further information:

Mr. Ronald Pantin
Chief Executive Officer and Director

Mr. José Francisco Arata
President and Director
(416) 362-7735

Ms. Belinda Labatte
Investor Relations, Canada
(647) 428-7035

Ms. Carolina Escobar V
Investor Relations, Colombia
+ (57 1) 628-3970