ConocoPhillips said up to 50 positions could go after the company offered voluntary redundancy to staff.
The firm said it is also looking to move to an equal time rota as it transitions to its decommissioning phase on its Viking operations in the Southern North Sea.
ConocoPhillips will also move to the change the rota on its onshore Theddlethorpe gas terminal.
A spokeswoman said: “We have also launched an ‘expression of interest process’ to allow ConocoPhillips offshore and terminal staff to express interest in being considered for voluntary redundancy.
“As a result, we estimate that there will be a reduction of approximately 50 positions across our offshore and Theddlethorpe operations, which will be split between ConocoPhillips and contractor personnel.”
Earlier this month oil major BP said it would be making headcount reductions as it looked to streamline costs.
The job losses include up to 600 positions from its North Sea operations.
Meanwhile Petrofac said it was in consultation for about 160 positions.