American Shipping Co (AMSC) has secured new employment for two Jones Act MR tankers due to come off charter at the end of 2022.

The Oslo-listed company said Keystone Shipping Co has agreed to take the pair on bareboat charters from December.

The charters, which have minimum terms of three years that can be extended at the charterer’s options, will add almost $60m to AMSC’s charter backlog, excluding any proceeds from the profit share component of the charters.