Berryhill and Sapulpa firefighters responded to a large grassfire near West 61st Street and Southwest Boulevard.
The flames got close to the Meadowbrook Cemetery and Ace Sign Company, Inc but caused no damage.
Berryhill's Assistant Fire Chief Jim Arrowood said about 30 acres burned.
Sapulpa Fire Department received the initial call around 2:30 a.m.
Arrowood said the fire was likely sparked by a train nearby, but the cause is still under investigation.