| Weyburn field, in the Williston basin of Saskatchewan, produces oil from the Midale member of the Mississippian Mission Canyon Formation.<ref name=ch09r9>Chetin, A., K., Fitkin, W., W., 1959, Geology of the Weyburn field, Saskatchewan: Canadian Mining and Metallurgical Bulletin, December, p. 751–761.</ref> | | Weyburn field, in the Williston basin of Saskatchewan, produces oil from the Midale member of the Mississippian Mission Canyon Formation.<ref name=ch09r9>Chetin, A., K., Fitkin, W., W., 1959, Geology of the Weyburn field, Saskatchewan: Canadian Mining and Metallurgical Bulletin, December, p. 751–761.</ref> |
| Weyburn has ultimate recoverable reserves of about 300 million bbl of oil (48 × 10<sup>6</sup> m<sup>3</sup>). The main pay interval is the lower part of the Midale, called the Midale “Vuggy” beds. The Midale Vuggy underlies the Midale “Marly” beds, which produce only minor amounts of oil. | | Weyburn has ultimate recoverable reserves of about 300 million bbl of oil (48 × 10<sup>6</sup> m<sup>3</sup>). The main pay interval is the lower part of the Midale, called the Midale “Vuggy” beds. The Midale Vuggy underlies the Midale “Marly” beds, which produce only minor amounts of oil. |