Caskieben uses a wide variety of sires, as both paddock sires and through the A.I. program. The following bulls are currently being used as sires in the stud.

Paddock Sires

• CASKIEBEN THUNDER K13 (P) (AI)
• CASKIEBEN OSSIE J19 (P)

A.I. Sires

• Yamburgan Emperor K28 (P)
• Oakton Royal Justice J25 (P) (AI)
• YAMBURGAN ZEUS H140 (P)
• FUTURITY HONEY BADGER H135 (P) (AI)
• JR LEGEND 78H (IMP USA) (P)
• CASKIEBEN DETECTOR F98 (P)
• CASKIEBEN CONDAMINE B67 (P) (AI)
• BROUGHTON PARK THUNDER C023 (P) (AI)
• BUNDALEER UNITED CHIEF U21 (P)