The Faithful County hit the net on 4 separate occasions in Semple Stadium.
Offaly will play in Division 1B of the National Camogie League for next season after easing past Derry in the league final on Sunday.
Two goals each from first cousins Mairéad Teehan and Grace Teehan helped the Faithful County to a 4-13 to 10 point win in Thurles.
Manager David Sullivan says he's delighted for everyone involved with the squad.
Goalscorer Mairead Teehan says it was a team effort.
Captain Orlagh Phelan was full of praise for the management team at full time.
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