The worker said she then realised it was a drone by its distinctive hovering movement.
She said the felt uncomfortable throughout the encounter, which lasted a full 30 minutes, and called police for assistance.
She also told the Herald the drone didn't appear to notice her in the darkened house but she had only peeked out from behind the curtains as she was a little scared of the dark at the best of times.
"Initially I was going to go out there and bash it down," the worker said, revealing she had never seen a drone on the property before.
The worker said that she wanted to install security cameras after the incident, a sentiment echoed by her employer who said he had already purchased cameras as a direct result of the aerial intrusion.
The farmer said he believed that the farm's bulk fuel tanks were the target and warned other farmers to be aware of drones around their properties, saying that police had told him that are being used to check rural properties before thefts.
A police spokesperson confirmed to the Herald that they were aware of the incident but shot down the claims of drone scouts, saying that the intent of the drone operator is not known and "there are currently no leads that could aid police in identifying the operator".
They also said that police in the area were not aware of the use of drones in other rural burglaries and noted there did not appear to have been any recent increase in fuel thefts.