Three offshore unions are balloting members on an offer from Aker Solutions on pay and conditions aimed at ending a dispute on the Mariner platform.
Last month some crew members downed tools in unofficial action on the North Sea installation over alleged poor working conditions.
Aker Solutions has since said it is in discussions with union officials to negotiate terms and conditions.
It covers payment for the standby period for workers between being trained and being sent offshore.
The offer also covers turntable beds as well as retention bonuses.