The Perth-based company produced 250,107 barrels of oil, up 249% on the previous quarter, while total sales revenue of $16.75 million was up 226%.

Production from Cliff Head, in which Roc is operator and holds a 37.5% interest, started on May 1, less than 14 months after project sanction. Output from three of six scheduled production wells averaged 3704 barrels of oil per day in the June quarter. At the end of the quarter, production from the three wells averaged 8500bopd.

Meanwhile, quarterly production at Chinguetti, in which Roc holds a 3.25% stake, averaged 41,600bopd, which was at the low end of expectations following reservoir and facility problems. At the end of the quarter, output had fallen further to 34,000bopd.

Roc Oil chief executive John Doran described Chinguetti’s underperformance as one of the “lowlights” for the company during the quarter.

Of the highlights, Doran pointed to Roc’s $260 million acquisition of producing reserves, with upside, in offshore China and the start-up of production at Cliff Head.

“A potentially significant Roc-operated oil discovery offshore China and the start-up of development drilling at the Blane Oil Field in the North Sea, were other quarter highlights,” he said.

“Perhaps the main thing for shareholders to take from Roc’s activities during the quarter is that the company’s strategy is working well.

“Diversification of its development and production portfolio, a consistent exploration effort and a steadfast focus on international operations are about to catapult Roc into a different league.”