Economy minister Edwina Hart said the work will not stop to help find a buyer for the Murco site.
Her comments come as the Welsh and UK Government announced an agreement by Swiss-based Klesch Refinery Ltd to buy the site had collapsed, leaving hundreds of jobs at risk.
“This is a devastating blow to staff at the Murco refinery and companies within the refinery’s supply chain, as well as the local communities around Milford Haven. “Our support for the Murco refinery and its staff will not stop here. We have been working with management at Murco since 2010 to try to maximise the opportunities for the sale of the refinery.
“We will all continue to work tirelessly with Murco management to maximise the opportunities for employment at the site, ensure the ongoing viability of the terminal and assist to find a new owner.
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