** Shares of Whitebark Energy Ltd jump as much as 20 pct to A$0.003, their highest since Nov 7
** The production and explorer firm confirms its Alberta-based Point Loma joint venture will start drilling for two exploration wells before year-end, targeting 70 mln barrels of oil equivalent in place ** Whitebark holds between 20 pct and 30 pct working interest Point Loma joint venture (PLJV) with Point Loma Resources Ltd ** Stock posts biggest intraday pct gain since Oct 3 ** Over 20.1 mln shares change hands, compared with the 30-day average volume of about 3 mln shares ** Stock down 66 pct this year, as of last close