New York-listed GulfMark Offshore has said it will open discussions with rival Harvey Gulf to determine if its potential merger offer is a better bet than the one GulfMark agreed with Tidewater in July.

Harvey Gulf stepped in with an unsolicited offer earlier this month.

GulMark said on Thursday that after analysis of the proposed deal, it "could reasonably be expected to result in a superior offer as defined in GulfMark’s merger agreement with Tidewater."