This roster represents the various classes of diesel locomotives owned by the Oliver, and shows the original district the units were assigned to. If a photo of the class exists, a link is listed in the "PHOTO?" column. All photos are from the MRHS collection, Doug Buell or Jeff Borne.
Special thanks to Ben Imbertson for the data in the table.
| OLIVER NUMBER | MFR. | TYPE | HP | ACQUIRED | DISTRICT - ORIGINAL ASSIGNMENT | PHOTO? |
| 900 | Alco | HH-1000 | 1000 | Jun-40 | Hibbing-Chisholm | YES |
| 901 | Alco | HH-1000 | 1000 | Jun-40 | Hibbing-Chisholm | |
| 902 | Alco | HH-1000 | 1000 | Jun-40 | Hibbing-Chisholm | |
| 903 | Alco | HH-1000 | 1000 | Jun-40 | Hibbing-Chisholm | |
| 904 | Alco | HH-1000 | 1000 | Jun-40 | Hibbing-Chisholm | |
| 905 | Alco | HH-1000 | 1000 | Jun-40 | Hibbing-Chisholm | |
| 906 | Alco | HH-1000 | 1000 | Jun-40 | Hibbing-Chisholm | |
| 907 | Baldwin | VO-1000 | 1000 | Jul-40 | Hibbing-Chisholm (went to USS Duluth Works) |
|
| 908 | Baldwin | VO-1000 | 1000 | Jul-40 | Hibbing-Chisholm (went to USS Duluth Works) |
|
| 909 | Baldwin | VO-1000 | 1000 | Jul-40 | Hibbing-Chisholm | |
| 910 | Baldwin | VO-1000 | 1000 | Mar-41 | Hibbing-Chisholm | |
| 911 | Baldwin | VO-1000 | 1000 | Mar-41 | Hibbing-Chisholm | YES |
| 912 | Baldwin | VO-1000 | 1000 | Mar-41 | Hibbing-Chisholm | |
| 913 | Baldwin | VO-1000 | 1000 | Mar-41 | Hibbing-Chisholm | YES |
| 914 | Baldwin | VO-1000 | 1000 | Jul-42 | Hibbing-Chisholm | |
| 915 | Baldwin | VO-1000 | 1000 | Jul-42 | Hibbing-Chisholm | |
| 916 | Alco | S-2 | 1000 | Apr-42 | Hibbing-Chisholm | |
| 917 | Alco | S-2 | 1000 | Apr-42 | Hibbing-Chisholm | |
| 918 | Baldwin | VO-1000 | 1000 | Apr-43 | Hibbing-Chisholm | |
| 919 | Baldwin | VO-1000 | 1000 | Apr-43 | Hibbing-Chisholm | |
| 920 | Alco | S-2 | 1000 | May-43 | Hibbing-Chisholm | |
| 921 | Alco | S-2 | 1000 | May-43 | Hibbing-Chisholm | |
| 922 | Baldwin | VO-1000 | 1000 | Jun-43 | Hibbing-Chisholm | |
| 923 | Baldwin | VO-1000 | 1000 | Aug-43 | Hibbing-Chisholm | |
| 924 | Baldwin | VO-1000 | 1000 | Aug-43 | Hibbing-Chisholm | |
| 925 | Baldwin | VO-1000 | 1000 | Aug-43 | Hibbing-Chisholm | |
| 926 | Alco | S-2 | 1000 | Mar-44 | Hibbing-Chisholm | |
| 927 | Alco | S-2 | 1000 | Mar-44 | Hibbing-Chisholm | |
| 928 | Baldwin | DS-4-4-1000 | 1000 | Jun-49 | Hibbing-Chisholm | YES |
| 929 | Baldwin | DS-4-4-1000 | 1000 | Jun-49 | Hibbing-Chisholm | |
| 930 | Baldwin | DS-4-4-1000 | 1000 | Jun-49 | Hibbing-Chisholm | |
| 931 | Baldwin | DS-4-4-1000 | 1000 | Jun-49 | Hibbing-Chisholm | |
| 932 | Baldwin | DS-4-4-1000 | 1000 | Jun-49 | Hibbing-Chisholm | YES |
| 933 | Baldwin | S-12 | 1200 | Jun-51 | Hibbing-Chisholm | YES |
| 934 | EMD | SW-9 | 1200 | Oct-51 | Canisteo (Coleraine) | |
| 935 | EMD | SW-9 | 1200 | Oct-51 | Canisteo (Coleraine) | |
| 936 | EMD | SW-9 | 1200 | Oct-51 | Canisteo (Coleraine) | YES |
| 937 | EMD | SW-9 | 1200 | Aug-53 | Canisteo (Coleraine) | |
| 938 | EMD | SW-9 | 1200 | Aug-53 | Canisteo (Coleraine) | |
| 939 | EMD | SW-9 | 1200 | Aug-53 | Canisteo (Coleraine) | YES |
| 940 | EMD | SW-1200 | 1200 | Aug-54 | Canisteo (Coleraine) | |
| 941 | EMD | SW-1200 | 1200 | Aug-54 | Canisteo (Coleraine) | YES |
| 942 | EMD | SW-1200 | 1200 | Aug-54 | Canisteo (Coleraine) | YES |
| 943 | EMD | SW-1200 | 1200 | Aug-54 | Canisteo (Coleraine) | YES |
| 944 | EMD | SW-1200 | 1200 | Aug-54 | Canisteo (Coleraine) | YES |
| 945 | EMD | SW-1200 | 1200 | Aug-54 | Canisteo (Coleraine) | |
| 946 | EMD | SW-1200 | 1200 | Aug-57 | Hibbing-Chisholm | YES |
| 947 | EMD | SW-1200 | 1200 | Aug-57 | Hibbing-Chisholm | YES |
| 948 | EMD | SW-1200 | 1200 | Aug-57 | Canisteo (Coleraine) | |
| 949 | EMD | SW-1500 | 1500 | Sep-72 | Minntac | |
| 950 | EMD | SW-1500 | 1500 | Sep-72 | Minntac | |
| 951 | EMD | SW-1500 | 1500 | Sep-72 | Minntac | |
| 952 | EMD | SW-1500 | 1500 | Sep-72 | Minntac | YES |
| 953 | EMD | SW-1500 | 1500 | Sep-72 | Minntac | |
| 954 | EMD | SW-1500 | 1500 | Sep-72 | Minntac | YES |
| 955 | EMD | MP-15DC | 1500 | May-76 | Minntac | |
| 956 | EMD | MP-15DC | 1500 | May-76 | Minntac | YES |
| 957 | EMD | MP-15DC | 1500 | May-76 | Minntac | |
| 958 | EMD | MP-15DC | 1500 | May-76 | Minntac | |
| 959 | EMD | MP-15DC | 1500 | May-76 | Minntac | |
| 960 | EMD | MP-15DC | 1500 | May-76 | Minntac | |
| 961 | EMD | MP-15DC | 1500 | May-76 | Minntac | YES |
| 962 | EMD | MP-15DC | 1500 | May-76 | Minntac | YES |
| 963 | EMD | MP-15DC | 1500 | May-76 | Minntac | YES |
| 964 | EMD | MP-15DC | 1500 | May-76 | Minntac | |
| 965 | EMD | MP-15DC | 1500 | May-76 | Minntac | |
| 966 | EMD | MP-15DC | 1500 | Aug-76 | Minntac | YES |
| 967 | EMD | MP-15DC | 1500 | Aug-76 | Minntac | YES |
| 968 | EMD | MP-15DC | 1500 | Aug-76 | Minntac | |
| 969 | EMD | MP-15DC | 1500 | Minntac | YES | |
| 970 | EMD | MP-15DC | 1500 | Minntac | YES | |
| 971 | EMD | MP-15DC | 1500 | Minntac | ||
| 1000 | Whitcomb | 65T | 550 | Jun-44 | Canisteo (Coleraine) | |
| 1001 | Whitcomb | 65T | 550 | Mar-44 | Light Duty | |
| 1002 | Whitcomb | 65T | 550 | Sep-44 | Light Duty | |
| 1003 | GE | 70T | 600 | Nov-49 | Light Duty | |
| 1004 | GE | 70T | 600 | Mar-50 | Light Duty | |
| 1005 | GE | 70T | 600 | Mar-50 | Light Duty | |
| 1100 | Alco | RS-2 | 1500 | Sep-47 | Eastern (Virginia) | |
| 1101 | Alco | RS-2 | 1500 | Sep-47 | Eastern (Virginia) | YES |
| 1102 | Alco | RS-2 | 1500 | Sep-47 | Eastern (Virginia) | YES |
| 1103 | Alco | RS-2 | 1500 | Sep-47 | Eastern (Virginia) | YES |
| 1104 | Alco | RS-2 | 1500 | Oct-48 | Eastern (Virginia) | |
| 1105 | Alco | RS-2 | 1500 | Oct-48 | Eastern (Virginia) | |
| 1106 | Alco | RS-2 | 1500 | Oct-48 | Eastern (Virginia) | |
| 1107 | Alco | RS-2 | 1500 | Oct-48 | Eastern (Virginia) | |
| 1108 | Alco | RS-3 | 1600 | Jun-50 | Eastern (Virginia) | YES |
| 1109 | Alco | RS-3 | 1600 | Jun-50 | Eastern (Virginia) | |
| 1110 | Alco | RS-3 | 1600 | Jun-50 | Eastern (Virginia) | YES |
| 1200 A&B | Baldwin | S-8 | 800 | Jul-51 | Sherman Group | |
| 1201 A&B | Baldwin | S-8 | 800 | Jul-51 | Sherman Group | |
| 1202 A&B | Baldwin | S-8 | 800 | Aug-51 | Sherman Group | YES |
| 1203 A&B | Baldwin | S-8 | 800 | Aug-51 | Sherman Group | |
| 1204 A&B | Baldwin | S-8 | 800 | Oct-51 | Sherman Group | YES |
| 1205 A&B | Baldwin | S-8 | 800 | Oct-51 | Sherman Group | YES |
| 1206 A&B | Baldwin | S-8 | 800 | Nov-51 | Sherman Group | |
| 1207 A&B | EMD | TR-6 | 800 | Oct-51 | Eastern (Virginia) | |
| 1208 A&B | EMD | TR-6 | 800 | Oct-51 | Eastern (Virginia) | |
| 1209 A&B | EMD | TR-6 | 800 | Dec-51 | Eastern (Virginia) | YES |
| 1210 A&B | EMD | TR-6 | 800 | Dec-51 | Eastern (Virginia) | |
| 1211 A&B | EMD | TR-6 | 800 | Dec-51 | Eastern (Virginia) | YES |
| 1212 A&B | EMD | TR-6 | 800 | May-52 | Eastern (Virginia) | YES |
| 1213 A&B | EMD | TR-6 | 800 | May-52 | Eastern (Virginia) | YES |
| 1214 A&B | Baldwin | S-8 | 800 | Jun-52 | Sherman Group | YES |
| 1215 A&B | Baldwin | S-8 | 800 | Jun-52 | Sherman Group | |
| 1216 A&B | EMD | TR-6 | 800 | Aug-53 | Eastern (Virginia) | YES |
| 1217 A&B | Alco | S-6 | 900 | Oct-56 | Monroe Mine | YES |
| 1218 A&B | Alco | S-6 | 900 | Oct-56 | Monroe Mine | YES |