caracas venezuela new oil czar vow tuesday root corruption state oil company pdvsa combative two-minute speech inauguration without offer clue plan handle company cripple debt burden president nicolas maduro sunday tap major general manuel quevedo lead pdvsa pdvsa.ul oil ministry give already powerful military control opec nation dominant industry comment two-hour broadcast maduro quevedo say would go saboteurs defeat corrupt bureaucracy offer brief nod boost oil production improve refinery operations go clean public finance thieve pdvsa finally leave say quevedo government action capture many people infiltrate industry leave worry investors closely watch quevedo clue whether seek halt payment pdvsa bond maintain maduro strategy continue service debt despite country cripple economic crisis quevedo make mention foreign debt tuesday maduro say month would restructure refinance future debt payments country would never default debt quevedo predecessors oil minister eulogio del pino pdvsa president nelson martinez see industry veterans significant technical expertise favor continue make debt payments source sector say quevedo appointment could quicken white-collar exodus pdvsa worsen operational problems time production already tumble near 30-year low million barrel day maduro say tuesday name ysmel serrano head trade supply division vice president pdvsa oversee world large crude reserve say would seek name country former energy minister ali rodriguez honorary president pdvsa military officer set name senior management post part shake-up government say aim fight corruption two company source tell reuters monday new venezuela oil chief vow anti-corruption crusade