SRL for [reigned]: President Carlos Salinas de Gortari used the army to oust La Quina , who [reigned] for 28 years over a graft - riddled empire that made state - run Petroleos Mexicanos , or Pemex , one of the world 's most inefficient oil companies .
ARG-0: La Quina | R-ARG-0: who | ARG-M-TMP: for 28 years | ARG-1: over a graft - riddled empire that made state - run Petroleos Mexicanos , or Pemex , one of the world 's most inefficient oil companies