Abstract: A method for performing additional oilfield operations on existing wells. The existing wells extending into a subterranean formation, and having oilfield operations previously performed to generate production. The method involves generating oilfield data (e.g., production rate) for each of the existing wells in a target area; generating oilfield parameters for each of the existing wells in the target area (the oilfield parameters including geological potential, drilling quality, and completion quality); identifying candidate wells from the existing wells by determining which of the existing wells within the target area have a maximum geological potential, a maximum drilling quality, and a minimum completion quality; and performing the additional oilfield operations (e.g., re-stimulating) on at least one of the identified wells.