California 1 Estados Unidos 1 Industria petroqum̕ica 1 Petrochemical industry 1 United States 1 agotamiento de petrl̤eo 1 eficiencia energťica 1 больше ... energy efficiency 1 energy ratios 1 energy return on investment 1 industria petroqum̕ica 1 oil depletion 1 oil production 1 oil refining 1 petrochemical industry 1 produccin̤ de petrl̤eo 1 refinacin̤ de petrl̤eo 1 relaciones energťicas 1 retorno energťico sobre la inversin̤ 1 меньше ...