Live feed17:14:00·493dINSIDERFilingvia QuantisnowChairman and CEO Robertson Corbin J Jr converted options into 58,050 units of COMMON UNITS and covered exercise/tax liability with 22,843 units of COMMON UNITS (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.NRP· Natural Resource Partners LP Limited PartnershipEnergyOriginal source