//
According to Reuters, the index was down 0.1 per cent at 10:45 BST, dropping to 4,229.67 points.
Trading on the market has been subdued, as its US counterpart is closed due to Independence Day celebrations in the country.
"Historically July 4th in Europe tends to be a muted session and we wouldn't expect today's session to be any different," market strategist Joshua Raymond explained.
Declining oil prices caused shares in BP, Royal Dutch Shell, Cairn Energy, Tullow Oil and BG Group to slip by between 0.1 per cent and 1.4 per cent, while retailer Tesco saw its share price decrease 0.3 per cent.
Mining companies - including Xstrata, Anglo American and Antofagasta - also retreated, however there were rises for HSBC, Lloyds Banking Group, Barclays and Royal Bank of Scotland.
The price of oil fell by around four per cent overnight, following the release of worse-than-expected US jobless figures.
