A number of players stepped away from the set up in January.
There'll be eleven changes to the Offaly Senior Hurling Panel in 2021.
Notable call ups from the U-20's are Shinrone's Eamon Cleary, St Rynagh's Luke O'Connor, Padraig Cantwell of Shamrocks.
It was announced in January that Kilcormac/Killoughey's Cillian Kiely wouldn't be a part of the set up this season for personal reasons.
His younger brother Cathal is also dealing with an injury and is out for the time being.
Other withdrawals earlier this year were Birr's Brendan Murphy, Seir Kieran's Kevin Dunne, Andy Flynn of Lusmagh, James Dempsey and David O'Toole-Greene of Kinnitty and Shamrocks.
Three players from Shinrone have also left the set up, Sean Cleary, Dan Doughan and Michael Cleary.
A total of 36 players have been chosen by Michael Fennelly for the upcoming National League Campaign which starts a week on Saturday against Meath.
The Offaly panel in full is:
Aaron Maher (Ballinamere), Adrian Hynes (Seir Kieran), Aidan Treacy (St Rynagh's), Ben Conneely (St Rynagh's), Brian Duignan (Durrrow), Brian Watkins (Birr), Ciaran Burke (Durrow), Colm Gath (Drumcullen), Conor Clancy (St Rynagh's), Conor Langton (Clodiagh Gaels), Damien Egan (Belmont), David King (Coolderry), David Nally (Ferbane), Dylan Watkins (Birr), Eamon Cleary (Shinrone), Eimhin Kelly (Lusmagh), Eoghan Cahill (Birr), Jason Sampson (Shinrone), Joey Keenaghan (Clodiagh Gaels), John Murphy (Ballinamere), Jordan Quinn (Kilcormac/Killoughey), Killian Sampson (Shinrone), Liam Langton (Clodiagh Gaels), Leon Fox (Belmont), Luke O'Connor (St Rynagh's), Oisin Kelly (Belmont), Paddy Delaney (Kinnitty), Paddy Rigney (Kinnitty), Pauric Cantwell (Shamrocks), Peter Geraghty (Kilcormac/Killoughey), Podge Guinan (Drumcullen), Rory Carty (Birr), Ross Ravenhill (Durrow), Shane Dooley (Tullamore), Shane Kinsella (Kinnitty), Stephen Corcoran (Coolderry).
Westmeath Begin Camogie League Campaign At Home To Meath
UL And Mary I Meet In Fitzgibbon Cup Finale
Shane Lowry Five Shots Off The Top At Pro-Am
Athlone Town Return To LOI Action This Evening
Offaly GAA Club Hosting Drive-In Bingo This Weekend
Cormac Izuchukwu Named In Irish Starting XV For Italy Clash
Lee Fitzpatrick Named In Ireland U20 Team For Italy Clash
NFL: Westmeath Face Away Trip To Down
Rás Tailteann Announces Stage One Start In Midlands Town
UL Crowned Sigerson Cup Champions
Athlone Town Women's Captain Thankful For Backing From Supporters
Laois Footballer Aiming To Win Sigerson Cup This Evening
Pebble Beach Pro-Am The Focus This Week For Shane Lowry
Portlaoise Panthers Suffer Agonising Defeat In Division One
Plans For 27-Acre Midlands Soccer Facility Rejected
CCFL: Senior Division One Title Race Heats Up Following Win For Coolraine
Midlands Athlete Wins Team Gold In England
Offaly Are A Brilliant Team - Iarlaith Daly
Laois Claim Impressive Victory Away To Limerick In Ladies Football League