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Manitoba has two potential areas for oil and gas production,
southwest Manitoba and the Hudson Bay lowlands.
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Oil was discovered in Manitoba in, and has been produced since
1951.
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Manitoba's current oil production is located in southwest Manitoba
along the northeastern flank of the Williston Basin, a sedimentary
basin that also occupies portions of southern Saskatchewan, North
Dakota, South Dakota and Montana.
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Potential hydrocarbon bearing-formations in southwest Manitoba
occur to depths of up to 2 300 metres (7,500 feet).
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The majority of the approximately 6,000 wells drilled in Manitoba
have only been drilled to Mississippian formations; this
represents approximately one half of the potential hydrocarbon
bearing formations.
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Production in 2005 was 805899.7 m3 - 5,071,123 Barrels.
The month of December 2005 had the highest production on record
- 92,714 m3 (583,402 Bbls) or 18,819 Bbls per day.
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There is over
70 kilometers of core from wells drilled in Manitoba
available for examination.
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All pre-1980 oil production originated from Mississippian
Lodgepole and Mission Canyon formations at depths that range from
600 to 1 050 metres (2,000 to 3,500 feet). These formations
currently account for approximately 51% of Manitoba's production.
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Oil was discovered in 1980 above the Mississippian in the Jurassic
Amaranth Formation. Approximately 19% of Manitoba's production
originates from the Amaranth Formation in the Pierson-Waskada
area.
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In 1985 oil was discovered in the Mississippian Bakken Formation
in the Daly area. Production from the Bakken makes up
4% of the
provincial total.
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In 1993, oil was discovered in the Jurassic Melita Formation in
the St. Lazare area.
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In 2001, oil was discovered in the Devonian Three Forks Formation
in the Daly Field, marking Manitoba’s first pre Mississippian
Production.
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Manitoba's 2005 estimated oil production was
805,899 m3 (5
million barrels) up 26% from 2004.
Total production to the end of
2005 was 37.6 million m3 (236.6
million barrels).
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Manitoba's oil is of good quality, and in 2005 the average selling
price for light sour blend crude was $402.82 per cubic metre
($64.00 CDN per barrel). The estimated value of oil sold in 2005 was
approximately $324 million.
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There are approximately 1,863 producing oil wells in Manitoba, 153
of which were put on production during 2005.
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In December
2005, average production rate for horizontal wells in the province
is 2.87 m3 per
day (18 barrels
per day), compared to an average production rate of
1.16 m3
per day (7.3 barrels per day) for vertical wells. During 2005,
horizontal wells accounted for 25% of the province’s total
production.
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Currently there are 15 designated oil fields and 166
oil pools in
southwest Manitoba.
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Manitoba's crude oil production is equivalent to approximately 25%
of the province's refined petroleum products requirements.
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Approximately
8.2 million m3 (51.4
million barrels) of salt water were produced in 2005, that's
10.06
m3 of salt
water for every 1 m3 of
crude oil produced. Salt water must be separated from the oil and
re-injected into subsurface formations.
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Approximately 380 wells are used for purposes other than
production, such as disposal of produced water
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The current cost to drill and complete a well in Manitoba ranges
from $275,000 to $1.2
Million depending primarily on depth.
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285 new wells were drilled in Manitoba during 2005 including 18
horizontal wells; of these 115 (96%) were cased
as potential
oil producers.
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Only 10 to 15% of the oil discovered in Manitoba is recoverable
under natural depletion. Recovery may be increased to over 30% by
water flooding.
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Approximately 48% of the producing wells are in waterflood
projects and presently account for approximately 50% of the oil
produced.
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As of December 31, 2003, the remaining established oil reserves
were estimated to be 4.3 million m3
(27.2 million barrels).
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Approximately 80% of the oil and gas rights are owned by private
individuals or companies (freehold), the remaining 20% are owned
by the Crown in the right of Manitoba.
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With a geothermal gradient of 1.3°C/m in the Virden area,
thermally mature oil and gas can be generated in the rocks as
shallow as a depth of 335 m. This means the Cretaceous shales
in Manitoba are excellent candidates for shallow gas exploration
in most of the extreme southwest corner of Manitoba.
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Royalties payable to private oil and gas rights owners were
estimated at $34 million in 2005.
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Total oil industry expenditures in Manitoba in 2005 were
approximately $243 million.