Her Majesty's Revenue and Customs reversed its 2017 decision over value-added tax (VAT) rebates in November of last year.
The company expects to receive the money in the first quarter of this year and intends to use it to progress it's new-frontier gold exploration programme in Cameroon, as well as pursue other opportunities it is reviewing in Africa and Europe.
"Reaching agreement with HMRC on our VAT status is excellent news as it removes a significant area of uncertainty around our operations, and brings a substantial amount of cash back to us. It has been a long process to reach this agreement and a significant and costly distraction that we can now put behind us, concentrating fully on our exciting exploration operations," said Bob Smeeton, Oriole's chief financial officer.
Shares in Oriole were up 6.7% at 0.47p in early deals, giving the company a stock market valuation of £3.1mln.