Geological Survey Open File 2013-1 Bakken Formation of Southeastern Saskatchewan — Selected Stratigraphy and Production Maps D. Kohlruss and E. Nickel

141/15-31-3-11W2 (Licence # 81D003) Map 1 — Percent Water Cut Map 2 — Average Hourly Production

12 N 12 N

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100% 1.8

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% STOUGHTON STOUGHTON ARCOLA 8 ARCOLA 8

%

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MIDALE LAMPMAN LAMPMAN 5 5

% Contour Interval: 20% Contour Interval: ALAMEDA 0.2 m3/hr 4 4 ALAMEDA

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BIENFAIT

2 2 ESTEVAN

Tp 1 Tp 1 49° 4 Rge 3 W2 49° 6 5 4 Rge 3 W2 8 7 6 5 9 8 7 13 12 11 10 9 13 12 11 10 0 51015 20 km 103° 0 51015 20 km 103°

Map 1 — Contour map of percent water cut from the first 12 months of production from each producing well. Wells with less than 1,000 hours of production or less than 100 m3 oil production in the first 12 months were culled from the dataset. Horizontal well end points shown for all Bakken Map 3 — ‘Unit A’ Isopach Map 4 — ‘Unit B’ Isopach producing wells. LEGEND Map 2 — Contour map of oil production rate in cubic metres per hour throughout the first 12 months of production from each producing well. Wells with less than 1,000 hours of production or less than 100 m3 oil production in the first 12 months were culled from the dataset. Horizontal well end points Producing Horizontal Well shown for all Bakken producing wells. 12 N 12 N + Stratigraphic Data Point Map 3 — Isopach map of ‘Unit A’ as picked by the log criteria shown in the above type horizon. Points represent a stratigraphically picked vertical well, verified by core examination where available. ‘Unit A’ is the main reservoir in most Bakken wells in the region. Crude Oil Pipeline 11 11 Map 4 — Isopach map of ‘Unit B’ as picked by the log criteria shown in the above type well. Points represent a stratigraphically picked vertical well, verified by core examination where available and where necessary. Coloured contour intervals indicate where ‘Unit B’ is greater than 1 m thick. ‘Unit B’ is Lake often not present or thin in areas where Bakken ‘Unit A’ production is most prevalent, such as the Viewfield pool. 10 10 Production data are provided by the Petroleum Statistics Branch, Saskatchewan Ministry of the Economy, Petroleum and Natural Gas Division, and are River current to December 2012. 25 Selected Bibliography: City or Town 9 9 17 Christopher, J.E. (1961): Transitional Devonian-Mississippian Formations of Southern Saskatchewan; Sask. Dep. Miner. Resour., Rep. 66, 103p. STOUGHTON Highway Kohlruss, D. and Nickel, E. (2009): Facies analysis of the Upper Devonian–Lower Mississippian Bakken Formation, southeastern Saskatchewan; in STOUGHTON Summary of Investigations 2009, Volume 1, Saskatchewan Geological Survey, Sask. Ministry of Energy and Resources, Misc. Rep. 2009-4.1, Paper 8 ARCOLA 8 Railroad ARCOLA A-6,11p, URL . Kreis, L.K., Costa, A., and Osadetz, K.G. (2006): Hydrocarbon potential of Bakken and Torquay formations, southeastern Saskatchewan; in Gilboy, C.F. Viewfield Bakken Pool 7 7 and Whittaker, S.G. (eds.), Saskatchewan and Northern Plains Oil & Gas Symposium 2006, Sask. Geol. Soc., Spec. Publ. No. 19, p118-137. Boundary Recommended citation: Kohlruss, D. and Nickel, E. (2013): Bakken Formation of southeastern Saskatchewan — selected stratigraphy and production maps; Sask. Ministry of Type Well the Economy, Saskatchewan Geological Survey Open File 2013-1, one sheet with marginal notes. 6 6

LAMPMAN MIDALE MIDALE LAMPMAN Annual Bakken Oil Formation and Producing Well Count LOCATION MAP 5 5 Southeast Saskatchewan 4 000 000 3,000 Although the Saskatchewan Ministry of the Economy has excercised First Production Year: 1956 all reasonable care in the compliation, interpretation and production 1 Total Oil Production: 18.8 million m3 0 4 Contour Interval: 1 m 3500000 Oil Production in 2004: 121 m3/day of this product, it is not possible to ensure total accuracy, and all ALAMEDA 4 Contour Interval: 1 m 3 2,500 Oil Production in 2012: 10 419 m /day persons who rely on the information contained herein do so at their Alberta Manitoba

es) ALAMEDA r 3000000 own risk. The Ministry of the Economy and the Government of Saskatchewan Oil Produced Saskatchewan do not accept liablilty for any errors, omissions or 2,000 2500000 inaccuracies that may be included in, or derived from, this product. 3 3 Well Count cubic met cubic ( 2 000 000 1,500 Government of Saskatchewan BIENFAIT BIENFAIT on i Saskatchewan Geological Survey, Ministry of the Economy 1500000 CountWell 2 duct Subsurface Geological Laboratory North Dakota 2 Montana ESTEVAN

o ESTEVAN 1,000 201 Dewdney Avenue East l Pr

i 1 000 000 Regina, Saskatchewan, O 500 S4N 4G3 500 000 (306) 787-2621 Tp 1 Tp 1 Legend 49° 4 Rge 3 W2 0 0 Study Area in Saskatchewan 8 7 6 5 49° 6 5 4 Rge 3 W2 0 3 9 7 Southern Edge of the Precambrian Shield 13 12 11 10 10 9 8 84 91 05 13 12 11 96 9 9 0 5101520 km 1956 1 197 1977 1 1 1998 20 2012 103° 0 5101520 km 103° Years