Whiting Petroleum Corporation (NYSE: WLL) today announced the retirement of J. Douglas Lang, Whiting’s Vice President of Reservoir Engineering/Acquisitions, effective June 30, 2013. Mr. Lang joined Whiting in December 1999 and was appointed VP-Reservoir Engineering/Acquisitions in October 2004. James J. Volker, Whiting’s Chairman and CEO, commented, “Doug has been a key contributor to Whiting's successful acquisition and drilling programs. From 2004 through 2012, we acquired 230.9 MMBOE of proved reserves at a cost of $8.23 per BOE. This low acquisition cost is a testament to Doug’s technical expertise and business acumen. Our drilling programs in the Bakken, Three Forks, and Niobrara have also benefited from Doug’s application of solid reservoir engineering practices. We wish Doug and his family all the best in his retirement.” Steven A. Kranker has been appointed Vice President- Reservoir Engineering/Acquisitions, effective July 1, 2013. Steve joined Whiting in March 2013 as First Director – Acquisitions/Reservoir Engineering. Prior to joining Whiting, Mr. Kranker was Manager, Reserves for Bill Barrett Corp. Mr. Kranker’s previous experience includes reservoir engineering positions with Forest Oil Corporation, Brunei Shell Petroleum, Arco Alaska Inc., Conoco Inc., and Shell Western E&P Inc. He received his B.S. in Petroleum Engineering from the Colorado School of Mines. Mr. Kranker is a member of the Society of Petroleum Engineers. Mr. Volker noted, “We are very pleased to have Steve as part of the Whiting team. With more than 29 years of experience in the oil and gas industry, Steve has already seamlessly transitioned into his role as Vice President of Reservoir Engineering and Acquisitions.” About Whiting Petroleum Corporation Whiting Petroleum Corporation, a Delaware corporation, is an independent oil and gas company that explores for, develops, acquires and produces crude oil, natural gas and natural gas liquids primarily in the Rocky Mountain, Permian Basin, Mid-Continent, Michigan and Gulf Coast regions of the United States. The Company’s largest projects are in the Bakken and Three Forks plays in North Dakota and its Enhanced Oil Recovery fields in Oklahoma and Texas. The Company trades publicly under the symbol WLL on the New York Stock Exchange. For further information, please visit http://www.whiting.com.