NexGen Energy Ltd. announced that the winter 2017 drill program has now begun at the Company's 100% owned, Rook I Property, Athabasca Basin, Saskatchewan. The winter 2017 program will consist of a minimum 35,000 m of diamond drilling using seven drill rigs. Four drill rigs are now fully operational on the Arrow Deposit directed at continued expansion as well as delineation drilling.  The remaining three drill rigs are on site, and will commence drilling on or before January 26, 2017 with one additional rig to be added on to Arrow (total of 5 rigs dedicated to Arrow expansion and delineation drilling), one rig on the northeast ZTEM target (600 m northeast of Arrow), and one rig on the southeast VTEM target (400 m southeast of Arrow). The winter 2017 program is budgeted at CAD 14 million and is fully funded with cash on hand of approximately CAD 70 Million.