PetroSun, Inc. announced its first quarter 2019 exploration and development plans for the Holbrook Basin (AZ). AEP Drilling, a wholly-owned subsidiary of Arizona Energy Partners and affiliate of PetroSun, will move its drilling rig onto the AEP 16-1 Concho Dome (Permit 1215) to deepen the well to 4,000 feet or basement, whichever is deeper. After testing and completion operations are conducted on the 16-1, AEP Drilling will move the rig to the AEP 2-1MS (Permit 1216) to test the Manuel Seep structure. Both wells and geological structures have the potential to produce commercial quantities of helium, crude oil and/or natural gas.