The share market is marginally higher, as further slides in oil prices weigh on energy stocks and offset gains in most other sectors.

The market is on track for its worst weekly performance in more than a month, after four consecutive falls this week, CommSec market analyst Stephen Daghlian said.

A four per cent slide in oil prices overnight had hit energy stocks, he said.

The sector is down about four per cent this week, compared to a two per cent slide for the broader market.

“The energy sector is the worst performer, that’s certainly the biggest drag,” he said.

Oil producer Woodside Petroleum had shed 67 cents to $39.44, Santos had lost 29 cents to $11.88 and Oil Search was 12 cents weaker at $8.23.

Coal miners were also down, after Glencore said it will shut down its Australian coal operations for three weeks due to an oversupply of the commodity.

Whitehaven Coal was down 6.25 cents at $1.3575 and New Hope was three cents lower at $2.42.

The big four banks were higher and other mining stocks were mixed.

Commonwealth Bank had gained 49 cents to $81.76, ANZ had lifted 16 cents to $32.21, National Australia Bank was up 31 cents at $32.71 and Westpac was four cents higher at $33.00.

BHP Billiton was down eight cents at $33.17, Rio Tinto was up 33 cents at $60.03 and Fortescue Metals had put on two cents to $3.05.

KEY FACTS

* At 1210 AEDT on Friday, the benchmark S&P/ASX200 index was up 8.7 points, or 0.16 per cent, at 5,451.4 points.

* The broader All Ordinaries index was up 7.5 points, or 0.14 per cent, at 5,431 points.

* The December share price index futures contract was 17 points higher at 5,466 points, with 11,542 contracts traded.

* National turnover was 534 million securities worth $1.45 billion.