Other Rockies Production History (Boepd)
| 2007 | 2008 | 2009 | ||||
| 1Q | 1,817 | 2,060 | 2,011 | |||
| 2Q | 1,839 | 2,484 | 1,928 | |||
| 3Q | 1,834 | 2,575 | 1,874 | |||
| 4Q | 1,888 | 2,507 |
Continental Resource’s other operations in the Rocky Mountain region are primarily focused on the Big Horn Basin in northern Wyoming. As of year-end 2008, our Other Rockies operations accounted for 4% of proved reserves.
In the second quarter of 2009, production averaged 1,928 net Boepd, or 5.2% of total Company production.
Our principal property in the Big Horn Basin, the Worland field, produces primarily from the Phosphoria formation. Additional operations in the Rockies include conventional 3D-defined Red River and Lodgepole structures in North Dakota and Montana; horizontal Fryburg opportunities in North Dakota; and the Lewis Shale and Fort Union in Wyoming.
The Red River formation is a well-known conventional producing oil and gas reservoir located throughout the Williston Basin of North Dakota and Montana. Individual Red River wells can be quite prolific, producing up to 1.5 million barrels of oil, but the productive reservoir is generally confined to structural closures and structural-stratigraphic traps of 320 acres to 640 acres in size. 3D seismic is generally required to identify Red River traps. Continental owns or has under license 964 square miles of 3D seismic over portions of our acreage in Montana and North Dakota. Approximately 8% of this data had been analyzed and interpreted as of year-end 2008, yielding 9 potential drilling locations. In 2008, we drilled and completed 6 gross (3.1 net) vertical Red River wells with 4 gross (2.2 net) wells completed as producers.