Harry Truman actually said...
Possession, control, and operation of any plant or facility, or part thereof, taken under this Order shall be terminated by the Petroleum Administrator within 60 days after he determines that the productive efficiency of the plant, facility, or part thereof prevailing prior to the threatened interruption of production, referred to in the recitals of this Order, has been restored.
Context
Executive Order 9577-A—Authorizing the Petroleum Administrator to Take Possession of and Operate the Plants and Facilities...
06/30/1945