FTSE 100 has so far lost about 19 points to 4,466 after UK stocks fell this morning, paced by clothing firm Next.
A drop in the oil price is the main activity for stock trading this morning, as BA has made the most of price shifts while oil firms has seen their values fall.
The benchmark FTSE 100 has so far gained about 2 points to 4,493 after UK stocks rebounded, boosted by gains made by WPP Group and Abbey National.
Summer sun in London seems to have lifted the spirits of traders today, as the FTSE 100 pushed towards the 4500 barrier again and only a small handful of stocks saw their share values fall by close of business.
The FTSE 100 has so far gained about 38 points to 4,492 after UK stocks rose for the fourth day in a row.
Having suffered on the back of rising oil prices earlier in the week, the FTSE 100 index eventually managed to close up as most of the stocks made reasonable gains.
The benchmark FTSE 100 has so far gained about 11 points to 4,446 after UK stocks rose this morning, paced by energy supplier Centrica.
The FTSE 100 index ended Thursday's trading up 12.6 points at 4,435.4 as the market waited for the OPEC announcement, while Marks & Spencer declined and SABMiller advanced.
The benchmark FTSE 100 closed up a mere 0.10 points at 4,422.80 after UK stocks ended the day on a mixed note.
Crude oil futures hit $42.45 a barrel in New York yesterday before dropping back, but the FTSE 100 has managed to stay afloat thanks to narrowing losses at Cable & Wireless.