After adding 42.70 points today the FTSE 100 index closed at 4,502, its best showing since late June.
Analysts stating oil company share prices still lag crude oil prices have helped the FTSE higher by about 29 points to 4,488.
BP and other major oil companies headed sharply higher today helping the FTSE 100 index add 36.20 points to 4,490.10 by the close.
After an opening upwards the FTSE 100 has dropped about 4 points to 4,403 after oil company shares fell with the price of oil and a number of index constituents went ex-dividend.
Share price losses by mining and oil companies have cut about 2 points off the FTSE 100 this morning, but the index remains above the 4,400 level at 4,403.
Shares in most FTSE 100 companies are up this morning, sending the index higher by about 31 points to cross the 4,400 points level.
Shell and BP helped the FTSE to a 6.6 points gain today meaning the index of 100 leading UK shares closed at 4,369.20.
UK shares gained after European technology stocks advanced and prospects brightened for earnings in the business media and data provision sector, sending the FTSE 100 index up about 20 points to 4,375.
Senior managers are responding to boardroom politics by sideshifting into the interim management market, suggests new research.
Shares in the FTSE 100 gave up some of the gains made in the past three days as investors locked in profits ahead of the weekend, sending the index down 5.6 points to 4,413.10 by the close.