The 970-989 class 2-8-0's were built Dec. 1906 - Jan 1907 by BLW. Engines 970, 979, 989, 984, 988, and 981 were converted to burn oil. During April 1916 and December 1916, 971-975, 977-978, 982-983, and 985 were sold to the NOT&M. The 1914-1916 period was a time of mass extinction on the Frisco; it was during time when the Frisco sold and scrapped many of its older or smaller power. The remaining locomotives of this class lasted until the steam - diesel transition period. 970 retired Nov 1948 976 retired Sept 1950 979 retired Nov 1948 980 retired May 1948 981 retired Nov 1948 984 retired June 1951 986 retired Sept 1950 987 retired June 1948 988 retired May 1948 989 retired May 1948