Shane Hand's men claimed a eight point win over Kinnitty.
Kilcormac-Killoughey got off to a winning start in the Offaly Senior Hurling Championship last night.
Shane Hand's team were 1-20 to 0-15 winners over Kinnitty in Glenisk O'Connor Park.
U20 star Adam Screeney scored 0-07 on his Senior debut, while Charlie Mitchell got the games only goal after 17 minutes.
Elsewhere tonight, Birr and Tullamore will clash in Banagher, while Ballinamere get their championship season underway against Coolderry.
Reigning champions Shinrone face Seir Kieran tomorrow evening in Birr, all games have a 7:30pm throw in.