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Pacific Rubiales Provides Exploration and Operational Update; Achieves Milestone Daily Production of 225,000 of Barrels of Oil Equivalent (Gross) from All Fields

May 12, 2011

TORONTO, May 12 /PRNewswire/ – Pacific Rubiales Energy Corp. (TSX: PRE) (BVC:
PREC) provided today an update on its exploration and production assets
in Colombia, Peru and Guatemala for the first four months of 2011.

Exploration Update:

The Company’s exploration portfolio currently covers 18,723,075 acres
(gross), including 1,693,437 additional acres incorporated after the
recent acquisition of 49.999% of the interests held by Maurel et Prom
(Euronext Paris:  MAU.FP) in the Sabanero, Muisca, SSJN-9, CPO-17 and
COR-15 blocks, which are all exploratory blocks located on-shore in
Colombia.

During the first four months of 2011, the Company continued its
exploratory activity in Colombia, Peru and Guatemala, with a total of
34 exploratory, appraisal and stratigraphic wells in the
Rubiales-Piriri, Quifa, La Creciente, CPE-6, Abanico, Dindal-Rio Seco
and Buganviles blocks (including 7 wells spudded in December 2010), as
well as the acquisition of 857.5 km of 2D equivalent seismic data in
Block 138 in Peru and the Arrendajo, and SSJN-3 blocks in Colombia.
Thus far, from the 34 wells, four wells are at the drilling or testing
stages, three wells have been abandoned as dry holes and three wells
exhibited hydrocarbon columns that are considered uneconomic. Two of
the wells currently drilling have already presented oil results.

Ronald Pantin, Chief Executive Officer of the Company, commented:  “This
update illustrates the dynamic nature of the Company.  We continue to
fulfill our goal of having a strong and concerted effort for our
exploration portfolio this year.  We are fulfilling our long term
objective to explore and produce oil in the most prospective basins in
the sub-Andean region, while also securing market access to pave the
way for further growth in the years to come.”

COLOMBIA 

Llanos Basin

Rubiales-Piriri Contracts

As part of the Company’s appraisal campaign in these blocks, between
January 2011 and April 2011 the Company drilled a total of seven
appraisal wells in the so-called “buffer zone” of the area set out in
Rubiales-Piriri contract.  The Rub-243, Rub-446, Rub- 447 and Rub-448
wells were drilled in the southernmost buffer zone of the Rubiales
contract area, while the Rub-363, Rub-404 and Rub-534 wells were
drilled in the eastern buffer zone of the Piriri Contract (see Figure
1).  Six wells had successful results and extended the Rubiales
reservoir into these areas, except the Rub-447 well that was dry.

Figure 1

Please click here to see Figure 1: http://files.newswire.ca/959/Figure_1.pdf

As depicted in table below, these wells exhibited net pays varying from
10 to 40 feet and porosities from 30% to 33%.

     __________________________________________________________
    |                       Rubiales-Pirirí buffer zone        |
    |__________________________________________________________|
    |  Well |Contract|Net Pay (feet)|Porosity (%)| Remarks |Oil|
    |_______|________|______________|____________|_________|___|
    |Rub-243|Rubiales|         23   |       30   |Appraisal|Oil|
    |_______|________|______________|____________|_________|___|
    |Rub-446|Rubiales|         16   |       31   |Appraisal|Oil|
    |_______|________|______________|____________|_________|___|
    |Rub-447|Rubiales|         0    |        -   |Appraisal|Dry|
    |_______|________|______________|____________|_________|___|
    |Rub-448|Rubiales|         16   |       33   |Appraisal|Oil|
    |_______|________|______________|____________|_________|___|
    |Rub-363| Pirirí |         10   |       32   |Appraisal|Oil|
    |_______|________|______________|____________|_________|___|
    |Rub-404| Pirirí |         40   |       32   |Appraisal|Oil|
    |_______|________|______________|____________|_________|___|
    |Rub-534| Pirirí |         19   |       33   |Appraisal|Oil|
    |_______|________|______________|____________|_________|___|

The distance from the Rub-446 well (the southernmost successful
appraisal well) to the Rub-534 well (the northernmost successful
appraisal well) is greater than 14 km and the width of the appraised
region averaged 3.5 km up to the boundary to where the Company has
developed exploration activities so far. These wells allow for the
evaluation of the hydrocarbon potential of an area in excess of 15,280
acres.  These successful wells will extend the Rubiales field and open
more opportunities for additional exploration activity with the buffer
zone covered by the Rubiales-Piriri Contracts. With these results, the
Company will make all the necessary arrangements to complete the
long-term tests on these wells, drill additional appraisal wells,
proceed to request Ecopetrol approval of the commerciality of this
extension of the Rubiales field and file all necessary information in
connection with the new reserves certification.

Quifa Block

Quifa SW  

As a continuation of its exploration/delineation campaign in prospects
“E”, “H” and “J” in the Quifa SW commercial area, the Company drilled
15 wells from December 2010 to date: (i) the Quifa-37, Quifa-39,
Quifa-52,  and Quifa-81, appraisal wells in prospect “E” (ii) the
Quifa-36, Quifa-45, Quifa-48, Quifa-49 and Quifa-53 appraisal wells in
prospect “H” and (iii) the Quifa-DW1, Quifa-77 and Quifa-78 appraisal
wells, and the Quifa-117, Quifa-119 and Quifa-120 stratigraphic wells
in prospect “J” (see Figure 2).

Figure 2

Please click here to see Figure 2: http://files.newswire.ca/959/Figure_2.pdf

Each of these wells was successfully appraised extending the Quifa SW
proven area (prospects “E” and “H”) and illustrating an extension of
these oil accumulations south and southeast into Prospect “J”,
increasing the proven and probable area (2P) from 22,634 acres to
31,544 acres. Nine of the wells relating to this exploration campaign
were used to support the 154 Mbbl of 2P reserves (gross) certified by
Petrotech Engineering Ltd. as previously announced by the Company on
March 11, 2011. The most recent wells, Quifa-117, Quifa-119 and
Quifa-120, drilled on Prospect “J”, support this proven acreage.

Once the Company receives the required environmental permits, production
clusters will be drilled and the stratigraphic wells will be converted
into producing wells, which the Company expects will allow for a
re-categorization of most of the probable-non-producing reserves into
proved-producing reserves.

The following table summarizes the net pays, porosities and the
prospects where those wells were drilled.

     ___________________________________________________________________
    |     WELL  |PROSPECT|   WELL TYPE |NET SAND (FEET)|AVERAGE POROSITY|
    |           |        |             |               |      (%)       |
    |___________|________|_____________|_______________|________________|
    | QUIFA-052 |     E  |   Appraisal |         13    |          30    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-037 |     E  |   Appraisal |          8    |          31    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-039 |     E  |   Appraisal |         11    |          31    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-081 |     E  |   Appraisal |         21    |          30    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-036 |     H  |   Appraisal |         13    |          30    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-045 |     H  |   Appraisal |         14    |          32    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-048 |     H  |   Appraisal |         14    |          33    |
    |___________|________|_____________|_______________|________________|
    |QUIFA-049ST|     H  |   Appraisal |        11.4   |          30    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-053 |     H  |   Appraisal |         13    |          30    |
    |___________|________|_____________|_______________|________________|
    |QUIFA-DW-01|     J  |   Appraisal |         15    |          32    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-077 |     J  |Exploratory  |          0    |           -    |
    |           |        | (Dry Hole)  |               |                |
    |___________|________|_____________|_______________|________________|
    | QUIFA-078 |     J  | Exploratory |          8    |          35    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-117 |     J  |Stratigrahic |         18    |          28    |
    |___________|________|_____________|_______________|________________|
    | QUIFA-119 |     J  |Stratigrahic |         18    |          31    |
    |           |        |  (Coring)   |               |                |
    |___________|________|_____________|_______________|________________|
    | QUIFA-120 |     J  |Stratigrahic |          5    |          27    |
    |___________|________|_____________|_______________|________________|

The Quifa SW reservoir has been extended to the north with the drilling
of six appraisal wells (Prospect “E” on the table). The Quifa-81 well
was drilled 8 km to the northeast in the so-called “Quifa Corridor”
area and the Quifa-37, 39 and 52 wells were drilled 2 km north-west, 4
km west to north-west and 4 km west to south-west of the reservoir,
respectively. Also, the Quifa SW reservoir extended 2.5 km to the
south-west and 2 and 5 km north-east with the drilling of the Quifa-36,
45, 48, 49ST and 53 wells in Prospect “H”, respectively. The main
activity occurred to the south of the core reservoir into Prospect “J”,
where the Company drilled 6 wells that extended the Quifa SW reservoir
more than 2 km and 6.5 km south-east, respectively  (Quifa-117 and 
Quifa-DW01 wells), 5 km south (Quifa-78 well) and 4 km south-west
(Quifa-119 and 120 wells). The Quifa-77 well was drilled 17 km away
from the main reservoir on the southeastern corner of the Quifa block
and was dry.

Quifa North

In this northern part of the Block, the Company is still waiting for the
environmental permits to begin the appraisal campaign that will include
the drilling of 16 wells. These permits are expected to be granted is
during June 2011. The Company has already managed to drill the Jaspe-2
appraisal well and Jaspe-3 stratigraphic well on prospect “A”, the
Zircon-1 stratigraphic well on what was interpreted to be the western
extreme of prospect “Q”, and the Ambar-3 stratigraphic well was drilled
in prospect “F” (see Figure 3). This well was spudded at the end of
December 2010. The Jaspe-2 well was drilled to appraise the western
boundary of prospect “A” on a contour of 12 feet of net pay. The well
found the top of the Basal Sandstones almost 15 deeper than predicted
and found only 3 feet of net pay. The Jaspe-3 was drilled to evaluate
the extension of prospect “A” to the northeast. This well found 29 feet
of net pay and confirmed the extension of the prospect (4 km) in this
direction. The Zircon-1 well was drilled to evaluate the western limits
of Prospect “Q” and did not found oil-bearing sandstones. This well was
originally drilled to evaluate 15 feet of net pay on Prospect “Q” on
its western part, but we now interpret that the well entered a
different compartment and drilled below the oil-water contact of
Prospect “F”. The Ambar-3 was drilled to the south of the previously
drilled Ambar-1 exploratory well, and showed 2 feet of net pay due to a
high shale content, The results of the Jaspe-3 and Ambar-3 were
reported in the Company`s news release of February 3, 2011.

For the second half of 2011, and after receiving the environmental
permits, the Company has scheduled drilling and testing 16 additional
appraisal wells on Prospects “A”, “F” and “Q”, which will allow us to
assemble all the necessary steps to support a commerciality request for
those three reservoirs. Also, during this period, the Company will
acquire 500 km(2) of 3D seismic to improve the sub-surface image and consequently perform
an improved cartography of the structural and stratigraphic models.

Figure 3

Please click here to see Figure 3: http://files.newswire.ca/959/Figure_3.pdf

CPE-6

In the CPE-6 Block, the Company continued the exploration drilling
campaign and drilled the Guairuro-5 and Guairuro-6 stratigraphic wells
in the north-eastern and southern border of the Guairuro prospect,
respectively.  The Company announced the results of the Guairuro-5 well
in its news release dated February 3, 2011. The Guairuro-6
stratigraphic well was drilled 10 km south of the Guairuro-4 well in
the southern border of the Guairuro prospect. The well was designed to
evaluate the following hypotheses: (i) the southernmost extension of
the oil charge within the incised valley; (ii) a possible reservoir
compartmentalization within this play of the C-7 units and along the
basal sandstones; and (iii) the south-headed oil-spilling from the
location of the Guairuro-4 well along the carrier beds of the C-7
sandstones. The petrophysical evaluation, as well as the cores taken at
the C-7 unit, indicated high shale content at the C-7 unit. The C-7
interval exhibited five feet of reservoir 100% impregnated with
hydrocarbons, and consequently, five feet of net pay with 27% porosity
were interpreted. These findings confirm that the hydrocarbon system
and charge effectively worked all the way to the south of the prospect,
ratifying the prospectivity of this part of the block.

The well also found a thick sand interval atop the basement that has
been interpreted as a local and isolated occurrence of sandstones and
should be un-connected with the oil charge. Currently, the Company is
considering drilling a north-deviated well into the center of the
incision attempting to reach a thicker sandstone package at the C-7
units. Also, as a requirement of the Technical Evaluation Agreement (“TEA“) contract, the well is currently drilling 1,000 feet within the
Paleozoic units.

With the drilling of the Guairuro-6 well, all the exploratory
commitments for the TEA contract with the Agencia Nacional de
Hidrocarburos (the “ANH“) have now been completed.

On April 1, 2011, as part of the planned strategy for CPE-6 block, the
Company submitted to the ANH a request for a conversion of the TEA
contract to an E&P contract in the northern part of the block, which is
expected to occur during the second quarter of 2011, thus enabling the
Company to include the drill results in its next reserves report.

Arauca

Two exploration wells, TORODOI-1X and TORDO-1X are scheduled to be
spudded in the Arauca block in June 2011. Both wells are commitments
with the ANH and will be drilled down to the basement to an estimated
true depth (TD) of 7,198 feet measured depth (MD) (or 6,785 feet true
vertical depth sub-sea (TVDSS)) and 8,455 feet MD (or 6,631 feet
TVDSS), respectively, with exploration targets in basal tertiary and
cretaceous sands.

The wells will be drilled back to back starting with TORODOI-1X, to be
drilled vertically, followed by TORDO-1X, looking for a second prospect
located in the northern part that will have a slanted trajectory.

Arrendajo

In connection with the Arrendajo block exploration commitments with the
ANH, the Company finished the acquisition and processing of 130 km(2) of 3D seismic. The interpretation of this new seismic will help to
identify the location of an exploratory well to be drilled during the
third and fourth quarter of 2011.

Lower Middle and Upper Magdelena Basins

La Creciente

The Apamate-1X well was drilled in the LCA-South prospect, located south
of La Creciente “A” and La Creciente “D” gas fields, with a target in
the Ci©naga de Oro Formation.

As previously announced on February 28, 2011, the Apamate-1X well
discovered gas on the basal Porquero units and showed average porosity
and water saturation of 17% and 23% respectively, in a gross interval
of 53 feet with a net-to-gross ratio around 70%. The well tested 24
MMcf/d with a ½ inch choke. The Company already connected the well to
the main facilities at La Creciente and will commence shortly the
long-term tests. The Company scheduled the drilling of two appraisal
wells for the Apamate Prospect for July 2011.

SSJN-3

A total of 112 km of 2D seismic were acquired in the northeast part of
the Block in the Pivijay area. The acquisition of 388 km in the west
and south to complete the commitment of a 500 km seismic program was
suspended due to severe flooding that affected the whole Lower
Magdalena region.

Buganviles

In the Buganviles block, the Company suspended the Tuqueque-1X
exploratory well, located to the northern part of the block. 
Currently, the Company is in the process of redefining the directional
plan to continue drilling the well to reach the main objective, which
is the Cretaceous Caballos Formation.

Abanico

In the Abanico block, the Company started drilling the Gecko-1X
exploratory well, located in the southern border of the block, which
targeted the Cretaceous Caballos Formation at an approximate depth of
6,500 feet. The well presented a negative test on the Caballos
Formation. The Company is now preparing the well to test the Barzalosa
Formation, which exhibited numerous gas shows while drilling this
section. This test is expected to be concluded during June 2011.

Dindal-Rio Seco

In the Dindal-Rio Seco block, and specifically in the Guaduas field, the
Company started drilling the Capira-1X exploratory well, located in the
southern reaches of the block. The well is targeting the Cretaceous
Cimarrona Formation at an approximate depth of 8,751 feet MD. The well
is expected to reach TD at the end of May, 2011.

Caguan-Putumayo Basins

Topoyaco

In the Topoyaco block the Company plans to start drilling Prospect “D”
in July, 2011. This prospect is a sub-thrust structural trap that the
Company believes is independent from previously drilled structures “B”
and “C” in the block. Our technical team estimates that the prospective
resources (best estimate) could be in the order 51 MMboe. The Company
is also waiting for the ANH to approve the evaluation plan for the
recent discovery made at the Topoyaco 2 well on Prospect “B” in the
Neme Member of the Rumiyaco Formation. The Topoyaco 1 well is suspended
and awaiting abandonment.

Tacacho and Terecay

The Company recently agreed with its partner Petrodorado Energy Ltd. on
the design of 480 km of 2D seismic in the Tacacho block, which the
Company is planning to acquire together with 476 km of 2D seismic in
the Terecay block during the fourth quarter of 2011.

PERU

Ucayali Basin

Block 138

The Company is finishing acquisition of 537 km of 2D seismic data in
Block 138. Preliminary interpretation of field processed data has
allowed the identification of at least 4 exploratory leads at
Cretaceous and Paleozoic stratigraphic levels, which are to be
confirmed with the interpretation of the fully and final processed
data. Upon interpretation, the Company will select a location to drill
an exploratory well, fulfilling its drilling obligations at the
beginning of 2012.

Block 135

The Company is waiting for environmental permits in order to begin 2D
seismic data acquisition, which is expected to commence in July 2011.
There is no exploration activity taking place on this block at this
time. 

GUATEMALA 

Blocks N-10-96 and O-10-96

During the first quarter of 2011, the Company continued the exploratory
program definition for the “N-10-96″ and “O-10-96″ blocks. The
exploratory activities for 2011 in Guatemala will include: (i) seismic
reprocessing of 300 km of 2D seismic; (ii) acquisition and processing
of additional 300 km of 2D seismic; (iii) 5,300 km of aero-magnetic and
aero-gravity data; (iv) 6,600 km(2) of remote perception surveys; (v) a surface geology campaign (already
underway, including samples analysis); and (vi) the beginning of an
integrated geological interpretation to define exploration prospect
locations to be drilled in 2012.

The exploratory program was submitted in February 2011 to Guatemala’s
Ministry of Energy and Mines.  The Company expects approval of the
exploratory program in the second quarter of 2011.

Production Update:

Rubiales-Pirirí/Quifa

Since the beginning of 2011, the Company has been steadily increasing
its production level from the Rubiales/Pirirí and Quifa fields.
Although the production potential has been available at wellhead since
the beginning of the year, the actual production has been capped by the
limited capacity of the OCENSA pipeline system associated with delays
in their expansion project. In addition, the heavy rains in Colombia
during the first quarter impaired the Company’s capacity to transport
oil via truck.

The elimination of the transportation bottlenecks through the coming
into operation of the expansion project at the OCENSA pipeline has
allowed for the materialization of the planned production levels. The
table below shows the evolution of the operated production:

     _________________________________________________________________
    |        Month|Avg. Gross Production |Avg. Net* Production (boe/d)|
    |             |               (boe/d)|                            |
    |_____________|______________________|____________________________|
    | January 2011|               167,804|                      64,199|
    |_____________|______________________|____________________________|
    |February 2011|               183,351|                      69,439|
    |_____________|______________________|____________________________|
    |   March 2011|               188,253|                      70,724|
    |_____________|______________________|____________________________|

* Net after internal consumption and royalties

The combined operated gross production from the Rubiales and Quifa
fields stands today at the historical milestone of 207,000 bbl/d,
confirming the area as the most prolific oil region in Colombia.

La Creciente and Other Gas Production Fields

In the La Creciente natural gas field the production has averaged 60.5
MMcf/d, which has been limited by Promigas operational restrictions in
the gas line to the Cartagena region. When those restrictions are not
in place the La Creciente field has reached record production of 70
MMcf/d. A temporary sales gas scrubber and gas heat
exchanger/pre-cooler were installed and commissioned. These
installations will be replaced by permanent components during the
capacity expansion construction phase later this year.

Two Amine plants for removing off-spec carbon dioxide content were
brought online at the Abanico (1.5 MMcf/d) and Guaduas (5 MMcf/d)
fields. These plants currently allow gas sales to industrial users and
vehicular natural gas.

The total gross production of the Company, including the natural gas and
light and medium oil fields stands at 225,000 boe/d as of May 12, 2011.

ODL Pipeline

Securing and expanding access to transport capacity through
participation in the ODL pipeline is an integral part of the Company’s
growth strategy. On May 4, 2011, the ODL pipeline pumped a historic
record of 246,588 bbl/d. The ODL pipeline will reach its full hydraulic
capacity of 340,000 barrels per day during the third quarter of 2011.

STAR Project in Quifa 

In March 2011, the Company and Ecopetrol agreed to continue with the
STAR Project in the Quifa field, that if proved successful (as is
expected) will be a step forward towards the utilization of the
technology in the near future. In the Rubiales and Quifa fields the
main management guidelines relate to:

        --  full utilization of the production infrastructure already
            purchased for the Rubiales field;
        --  application of a fast track strategy to carry out the main
            specialized studies and lab tests; and
        --  carrying out a pilot test under the existing terms and
            conditions that exist for the Company's and Ecopetrol's
            association in Quifa.

The preparation of the platforms for production and well facilities have
already been designed and built and are now located at the Quifa field.
The installation of the entire STAR pilot program infrastructure will
start in a few days and is expected to finish in 2 to 3 months at which
point the Company will provide a further update. The drilling of the
five wells will start as soon as environmental permits are awarded.

Maurel et Prom Acquisition

On May 6, 2011, PRE-PSIE C×OPERATIEF U.A., a Dutch co-operative owned by
the Company, successfully acquired from Les Etablissements Maurel &
Prom, S.A. a 49.999% interest in Maurel and Prom Colombia B.V., which
owns the following hydrocarbon interests located on-shore in Colombia:

        --  100% participation in the Sabanero block located in the central
            region of Colombia in the Department of Meta;
        --  100% participation in the Muisca bock located in the central
            region of Colombia in the Departments of Boyacá and
            Cundinamarca;
        --  50% participation in the SSJN-9 block located in the northern
            region of Colombia in the Departments of Bolivar, Cesar and
            Magdalena. The remaining 50% interest is currently held by
            HOCOL;
        --  50% participation in CPO-17 block located in the central region
            of Colombia in the Department of Meta. The remaining 50%
            interest is currently held by HOCOL; and
        --  100% participation in the COR-15 block located in the central
            region of Colombia in the Department of Boyacá.

First Quarter Financial Results and Investor Conference Call

The Company will announce its first quarter financial statements on
Wednesday May 18, 2011, together with its Management Discussion and
Analysis for the corresponding period. These documents will be posted
on the Company’s website and SEDAR at www.sedar.com.

Management will hold a live conference call in English on Thursday May
19, 2011, to discuss the Company’s financial results beginning at 9:00
am (Toronto time). A Spanish translator will be available.

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.

Prospective resources are those quantities of petroleum estimated, as of
a given date, to be potentially recoverable from undiscovered
accumulations by application of future development projects. 
Prospective resources have both an associated chance of discovery and a
chance of development.  Prospective resources are further subdivided in
accordance with the level of certainty associated with recoverable
estimates, assuming their discovery and development, and may be
sub-classified based on project maturity.  There is no certainty that
any portion of the resources will be discovered.  If discovered, and
they would be technically and economically viable to recover; there is
no certainty that the prospective resource will be discovered.  If
discovered, there is no certainty that any discovery will be
technically or economically viable to produce any portion of the
resources.

SOURCE Pacific Rubiales Energy Corp.


Source: newswire