Comparative study on corporate strategy of state-owned oil companies : new directions and options for Ecopetrol /
Diaz Coral, Robert.
University of Dundee.Centre for Energy, Petroleum and Mineral Law and Policy.
Dundee : Centre for Energy, Petroleum, Mineral Law & Policy,
c2001.
Includes bibliography.
Empresa Colombiana de Petróleos.
Petroleum industry and trade