CREH proposed to conduct multi-stage frac on existing Elk Hills well 315-16R. All project activities are located in Tier 1. The proprosed rework activities are to add perforations and will included DOGGR regulated SB-4 activities. All rework activities will be limited to existing well pad and no new disturbance is proposed. The proposed well may require additional downhole work as approved by DOGGR.