Operations are performed using the company's own fleet of 14 National, Emsco, Midco, Ideco, Cardwell and Skytop drilling rigs, as well as one semisubmersible and one jackup. Drilling capacity ranges from 2,300 to 8,000 m (7,546 to 26,247 ft).
CROSCO holds the record for the deepest offshore well drilled in Europe, 7,305 m (23,967 ft), in offshore Italy. We held the record for the deepest European onshore well during the 1980's and we regularly drill onshore wells to depths exceeding 6,000 m (19,685 ft). We have drilled over 4000 wells, or a total of over 6,300,000 m (20,669,250 ft) since the commencement of our onshore operations in 1932 and offshore operations in 1972.
CROSCO holds the record for the deepest offshore well drilled in Europe, 7,305 m (23,967 ft), in offshore Italy. We held the record for the deepest European onshore well during the 1980's and we regularly drill onshore wells to depths exceeding 6,000 m (19,685 ft). We have drilled over 4000 wells, or a total of over 6,300,000 m (20,669,250 ft) since the commencement of our onshore operations in 1932 and offshore operations in 1972.
| Rig name | Short rig description | Drawworks | Rating |
| ZAGREB 1 | Semisubmersible Drilling Unit | Gardner Denver 3000 E | 3000 HP |
| LABIN | Jackup Drilling Unit | National 1320 UE | 2000 HP |
| NATIONAL 801 | Drilling Rig | National 1625 UDBE | 3000 HP |
| NATIONAL 601 | Drilling Rig | National 1320 UE | 2000 HP |
| EMSCO 602 | Drilling Rig | Emsco C-2 II | 2000 HP |
| EMSCO 603 | Drilling Rig | Emsco C-2 II | 2000 HP |
| EMSCO 604 | Drilling Rig | Emsco C-2 II | 2000 HP |
| EMSCO 605 | Drilling Rig | Emsco C-2 II | 2000 HP |
| EMSCO 401 |
Drilling Rig | Emsco C-1 II | 1500 HP |
| MIDCO 501 | Drilling Rig | Mid Continent U914EC | 1500 HP |
| NATIONAL 402 | Drilling Rig | National 80-UE | 1000 HP |
| NATIONAL 403 | Drilling Rig | National 80-UE | 1000 HP |
| IDECO 301 | Mobile Drilling/Workover Rig | Ideco H-44-CD | 1000 HP |
| SKYTOP 3 | Mobile Drilling/Workover Rig | Skytop-Brewster RR 850 | 900 HP |
| CARDWELL 1 | Drilling Rig | Cardwell OC | 900 HP |
| IDECO 202 | Drilling Rig | Ideco H-725 | 725 HP |
