UPDATE 10-Oil rises close to $50/bbl; doubts on OPEC plan cap gains
* OPEC plans to cut 700,000 bpd, glut at 1.0-1.5 million bpd (New throughout, adding weekly milestones and analyst's price views)
KERCH, Crimea, Sept 15 Russian Economy Minister Alexei Ulyukayev said on Thursday the idea of raising the mineral extraction tax as well as excise taxes on the oil sector still needed to be studied carefully.
"I think this idea has not been sufficiently discussed. I believe that tax burden on the industry is quite large... it changes too often, which creates uncertainty among investors," Ulyukayev told reporters. (Reporting by Gleb Stolyarov; writing by Maria Kiselyova)
TORONTO, Sept 29 Canada's main stock index rose on Thursday to a one-week high as energy stocks added to sharp gains from one day before on a surprise output cut agreement by OPEC.
* Wall St slides, bank stocks weigh (Updates to U.S. market close)