Ithaca Energy (LON:IAE, CVE:IAE) said drilling operations have restarted on the J03 well on the Jacky field in the UK North Sea.
The company had suspended drilling a week ago due to mechanical issues on the Energy Enhancer jack-up drilling unit.
Ithaca said today the unit is now fully operational following successful repair to the drilling mud handling system onboard the rig.
Production from J01 was briefly suspended to complete the 'top hole section' of the J03 well and then immediately reinstated. The J03 well has now been drilled to approximately 2,400 feet measured depth and drilling operations are scheduled to last approximately a further 60 days.
Ithaca holds 47.5 percent in the Jacky field. The company's net reserves in Jacky have been estimated at 0.91 million barrels of oil in the proved category and 0.54 million barrels probable.