Featured TransportTanker drivers threaten to withdraw services over safety valvesMeletus EZEMarch 29, 2021March 29, 2021 by Meletus EZEMarch 29, 2021March 29, 20210413 The Petroleum Tanker Drivers (PTD) Branch of the Nigeria Union of Petroleum and Natural Gas Workers (NUPENG) has threatened to withdraw its services if the