(n.) Oil and Gas Business. The return of part or all of a lease or concession to a lessor, farmor or host government. The return may be voluntary or compelled contractually. See: Concession, Farmor
Schlumberger Ltd. (The World's Leading Supplier Of Technology, Integrated Project Management And Information Solutions to Customers Working in The Oil and Gas Industry Worldwide), Schlumberger Oilfield Glossary Cedex, France 2014. http://www.glossary.oilfield.slb.com/en/Terms/sym/ a.aspx, (Ergo - Brit) {766}