Slide 1 Williston Basin Petroleum Conference Advances in Technology Panel Efficient Fracture Stimulation Rick Ross – Whiting Petroleum Corporation 1 Slide 2 Forward-Looking…

Whiting Petroleum Corporation Drilling the Rohde 14-6XH Cross-Unit Well in Sanish Field, Mountrail County, ND IP: 3,293 BOE/D Drilling operations on the Bissett #9701, Whiting‟s…

July 2011A Corporate Presentation

Current Corporate Information May 2012 Drilling operations in Whiting‟s Redtail Prospect in the Denver Basin in Weld County, CO. The Wolf 35-2623H was recently completed…

First Quarter 2012 Financial and Operating Results April 26, 2012 Drilling operations in Whiting‟s Redtail Prospect in the Denver Basin in Weld County, CO. The Wolf 35-2623H…

Whiting Petroleum Corporation Drilling the Rohde 14-6XH Cross-Unit Well in Sanish Field, Mountrail County, ND IP: 3,293 BOE/D Drilling operations on the Bissett #9701, Whiting‟s…

Current Corporation Information July 26, 2012 Completion operations at the May 2501 in the Big Tex prospect in Pecos and Reeves County, Texas. Subsequent to the hydraulic…

Whiting Petroleum Corporation Drilling the Rohde 14-6XH Cross-Unit Well in Sanish Field, Mountrail County, ND IP: 3,293 BOE/D Drilling operations on the Hagey 12-13H in Sanish…

Whiting Petroleum Corporation Drilling the Rohde 14-6XH Cross-Unit Well in Sanish Field, Mountrail County, ND IP: 3,293 BOE/D Current Corporate Information May 2011 Drilling…

Whiting Petroleum Corporation Drilling the Rohde 14-6XH Cross-Unit Well in Sanish Field, Mountrail County, ND IP: 3,293 BOE/D Drilling operations on the Bissett #9701, Whiting‟s…