RVDO The HitzCal Project, in Frio Co., TX, has one well producing from a shallow formation, at 3 to 4 barrels oil per day. The 3D seismic data has been re-processed and there are strong indications of deeper potential on the Hitzfelder and Calame leases. A well is being proposed to a depth of 7,000 feet on the Hitzfelder lease, in the proximity of 3 wells that have produced more than a total of 400,000 barrels of oil from 3000 feet in depth. Riverdale has a carried working interest of 2.5% in the HitzCal Project.