Following months of litigation and arbitration, lawyers have secured the restoration of benefits they estimate will be worth some $10 million to union oil refinery workers.

Arbitrator Thomas McConnell Jr. issued an order June 22 instructing Philadelphia Energy Solutions Refining and Marketing to return benefits the company cut in January 2017. Those cuts included reducing the company’s contributions to medical plan costs from 80 percent to 70 percent, and cash option retirement plans from 7 percent of pay to 0 percent.