With the crude price hovering around its all-time high - despite a higher than expected rise in US stocks - it's a good time to announce an oil discovery.
So congratulations to exploration group Dana Petroleum, which said today it had found oil at West Rinnes in the North Sea. As a consequence, its shares have jumped more than 17%, adding 241p to £16.29.
The strong crude price also lifted Tullow Oil, Royal Dutch Shell and Cairn Energy by more than 3% each.
With a reasonable early performance from Wall Street, the FTSE 100 has closed at the day's high, up 48.9 points at 6083.6.
Pharmaceuticals and miners helped overcome a poor performance from the banks, which continued to be unloved in the wake of Royal Bank of Scotland's record breaking £12bn rights issue.
RBS fell 13p to 345p as its board defended its actions at its annual meeting, while Alliance & Leicester ended the day as the biggest faller, down 39.5p to 491p. But A&L recovered from its worst levels, and much of the decline was attributable to the shares going ex-dividend.
