The dog's owner, Shela Foster of Landcastle Road near Church Hill, told the Times-News Monday the veterinarian bill was nearly $1,000.
She said her dog never leaves her property.
The attack, which she believes happened Thursday, would have taken place at her residence, Foster said.
Hawkins County Sheriff's Office Deputy Matt Pendleton responded to Foster's residence, where she showed him the dog's injuries.
"Shela Foster stated that at an unknown time on (Thursday) an unknown person entered onto her property and poured hot oil onto her white Labrador retriever, causing extensive burning to the dog's hind legs," Pendleton said. "Upon viewing the dog there were burn marks and oil left in the animal's coat. Also, there appeared to be maggots in the wounds of the animal."
After making her report with Pendleton, Foster took the dog to an emergency vet's office.
"She's fine now," Foster told the Times-News Monday. "After $981 she's fine. It looked like it had acid in it because her hair was singed on her back."
Foster said she doesn't know the motive for the attack on her dog, although she said she does have "enemies."
The case has been referred to the HCSO Detectives Division and remains under investigation.