** Shares of oil and gas company Aminex AMNX.L up as much
as 20% at 1.2p; highest in more than a month
** Stock among top pct gainers across London
** Co says Tanzanian authorities provisionally approved new
Chikumbi-1 well pad location and final written approval expected
imminently
** Stock last up 10%, set for biggest one-day gain in 8
months, and pushing stock to YTD gains
** Stock now up ~2.3% YTD vs a 7% decline as of last close
(Reporting by Hani Kollathodi)
((Hani.Kollathodi@thomsonreuters.com))