Overriding Royalty Interest 2 : A royalty interest which is typically retained by geologists or third parties which interest bears no part of the cost of drilling- completing or operating the well
EESiFlo North America, Terminology and Glossary: Oil Well Terms, Pennsylvania, Oil: Oil Well Drilling Science and Technology, USA 2002, flowmeterdirectory.com/flowmeter_terminology, (Oil Well Drilling Sci and Tech - Amer) {555}