Future Tertiary Operations

Hartzog Draw Field. We acquired our interest in Hartzog Draw Field in 2012. The field is located in the Powder River Basin of northeastern Wyoming, approximately 12 miles from our Greencore pipeline. Industry activity around this field has been increasing for the last several years, with several operators testing various formations such as the Turner, Niobrara, Shannon, Parkman and Mowry for potential development. We believe the oil reservoir characteristics of Hartzog Draw Field make it well suited for CO2 EOR in the future. The timing of development of a CO2 flood at Hartzog Draw Field is primarily dependent upon capital availability and priorities and future oil prices.

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