The Australian share market has been dragged down by losses in the energy and financial sectors.

The benchmark S&P/ASX200 index was down 19.6 points, or 0.29 per cent, to 6,653.7 points at 1200 AEST on Thursday, while the broader All Ordinaries was down 23.4 points, or 0.35 per cent, to 6,740.6.

The energy sector tumbled 1.82 per cent, leading losses on the ASX, following a 1.0 per cent slump in oil prices overnight.

Santos, Woodside Petroleum, Oil Search and Beach Energy were down between 0.61 per cent and 3.44 per cent.

All four of the big banks were also lower, with ANZ down 0.85 per cent to $26.96, Commonwealth down 0.38 per cent to $81.01, NAB down 0.69 per cent to $26.755 and Westpac down 0.72 per cent at $27.48.

Tech shares were the highest climbers, with the sector gaining 0.68 per cent.

Afterpay was up 2.29 per cent, Wisetech rose 1.21 per cent and Xero added 0.78 per cent.

Elsewhere, CIMIC Group was down 18.94 per cent to $37.11 after the infrastructure construction company said its profit for the first half was up just 1.0 per cent.

Lendlease was up 4.61 per cent to $14.75 after the property group announced a $20 billion deal with Google.

The big miners were mixed, with BHP down 1.05 per cent to $41.30, Rio Tinto up 0.11 per cent to $103.31 and Fortescue Metals down 1.31 per cent to $8.685.

The local currency spiked against the US dollar after the release of ABS jobs data that showed the country’s unemployment rate was steady at 5.2 per cent in June.

The Aussie dollar is buying 70.17 US cents from 70.06 US cents on Wednesday.