Combustibles 3 Combustibles fs̤iles 3 Fossil fuels 3 Fuels 3 energa̕ 2 energy 2 energy sources 2 more ... fuentes de energa̕ 2 gas natural 2 industria del petrl̤eo 2 industria petroqum̕ica 2 natural gas 2 oil 2 oil industry 2 petrl̤eo 2 petrochemical industry 2 petroleum 2 GNL 1 GTL,. liquid natural gas 1 conversin̤ gas a lq̕uido 1 downstream 1 esquistos bituminosos 1 gas de esquisto 1 gas natural lq̕uido 1 gas-to-liquid conversion 1 monetizacin̤ de gas natural 1 natural gas monetization 1 oil shale 1 operaciones 1 operations 1 less ...