Former oil Oil chief executive Gretchen Watkins has been appointed to replace Royal Dutch Shell 's US oil Bruce wells , as well as chairman of unconventionals firm Guidry . Culpepper is scheduled to step down at the end of the year , while Guidry will step down on 31 June . Shell has identified its shale sector as a key growth sector .
Former Maersk Oil chief executive Gretchen Watkins has been appointed to replace Royal Dutch Shell's US boss Bruce Culpepper, as well as head of unconventionals Greg Guidry. Culpepper is scheduled to step down at the end of the year, while Guidry will step down on 31 June. Shell has earmarked its shale unit as a key growth sector.