Complex sentence: Further fields have been discovered in the Buchan field area, with the Buchan North Satellite field being discovered shortly afterwards and more recently the Hannay Field in 1996 which is tied back to the Buchan Alpha rig.
Split into simpler sentences: Further fields have been discovered in the Buchan field area. The nearby Hannay Field, discovered in 1996, is tied back to the Buchan Alpha rig.