It's reported bogus meter readers are calling at properties in Douglas and Peel.
Manx Gas says it's been made aware of two men - who reportedly have strong eastern European accents calling at properties and handing over fake meter reading cards.
They're believed to be dressed in navy blue, but are not wearing Manx Gas branded clothing.
The company says they may be working as a pair or alone and Police have been informed.
The business adds all official meter readers carry branded photographic identity cards which should be clearly displayed - people are told to check those before allowing entry.
Anyone with concerns can contact Manx Gas on 644444.
Firefighters called to fire at tip this morning
Airport recruiting for firefighters
Northern roads to close for half marathon this weekend
City centre street to close for two days
Workshop about impact of substance abuse this morning
Total of 44 bus services running during strike today
DoI to work with libraries to help people use online services
New organ donation drive by government