 During the original version of the OKT, a total of 61,891 cars were moved during 1981, with the first train leaving Dallas, the company's headquarters, on June 6, 1980.Although the MKT supplied the bulk of operating equipment during OKT I, additional leased equipment was obtained for use on the line, including leased GP38's from Conrail and a number of cabooses leased from Conrail and from the Alaska Railroad.However, due to poor financial performance, MKT management sought reduced rentals from the Rock Island Trustee, with both sides going back and forth until MKT shut down its original OKT operations on December 31, 1981.