Live feed17:16:17·75dINSIDERFilingvia QuantisnowChairman and CEO Robertson Corbin J Jr converted options into 72,849 units of COMMON UNITS and covered exercise/tax liability with 28,666 units of COMMON UNITS (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.NRP· Natural Resource Partners LP Limited PartnershipEnergyOriginal source