| Okmulgee to Devnya | 5,936.66 mi (9,554.13 km) |
| Okmulgee to Dimitrovgrad | 5,926.60 mi (9,537.94 km) |
| Okmulgee to Dobrich | 5,927.96 mi (9,540.13 km) |
| Okmulgee to Dospat | 5,894.72 mi (9,486.64 km) |
| Okmulgee to Dupnitsa | 5,826.57 mi (9,376.96 km) |
| Okmulgee to Elhovo | 5,954.98 mi (9,583.62 km) |
| Okmulgee to Etropole | 5,830.82 mi (9,383.80 km) |
| Okmulgee to Gabrovo | 5,876.60 mi (9,457.48 km) |
| Okmulgee to Gorna Oryahovitsa | 5,876.26 mi (9,456.92 km) |
| Okmulgee to Gotse Delchev | 5,882.97 mi (9,467.73 km) |
| Okmulgee to Harmanli | 5,943.09 mi (9,564.48 km) |
| Okmulgee to Haskovo | 5,931.22 mi (9,545.37 km) |
| Okmulgee to Ihtiman | 5,843.54 mi (9,404.26 km) |
| Okmulgee to Isperih | 5,886.31 mi (9,473.10 km) |
| Okmulgee to Kardzhali | 5,938.12 mi (9,556.49 km) |
