The group's ex-frontman took to his Twitter account and individually tweeted the letters O A S I S over the course of a few hours. Gallagher then followed up the posts, simply tweeting, "OASIS LG", reported Digital Spy.
The meaning of the tweets is as yet unclear, but fans were understandably excited and replied by asking if Oasis were getting back together.
Followers also wondered if the band were to reunite at this year's Glastonbury festival.
Gallagher and Paul 'Bonehead' Arthurs were "mobbed" when they attended the opening night of a new Oasis exhibition in London earlier this month.