The result was a combination of improved US oil and gas profitability and the sale of a one-third interest in subsidiary Australian Renewable Fuels Limited, according to Amadeus.

Thhe company's sales revenue rose by 72% during the half year from $US3.6 million to $US6.2 million.

Amadeus achieved a 24% increase in net oil production and a 104% increase in natural gas production over the previous year.

But production levels were below the company’s expectations as heavy demand for rigs in the US held up exploration programs. Unusually wet weather during the period also delayed drill rigs from moving onto location.