<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>1554</termId><termName>GAS NATURAL</termName><termType>TT</termType><termLanguage>es</termLanguage><termVocabulary>Tesauro Ambiental de Colombia</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>GAS NATURAL</termSortkey><termNote label="Scope"><![CDATA[ Hidrocarburo gaseoso compuesto básicamente por metano, utilizado como fuente energética. ]]></termNote><termCreatedDate>2026-05-25 01:03:53</termCreatedDate><relation><relationType>UF</relationType><termId>1219</termId><termName>ENERGÍA SECUNDARIA</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>1552</termId><termName>GAS NATURAL COMPRIMIDO VEHICULAR - GNCV</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>1553</termId><termName>GAS NATURAL DOMICILIARIO</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>1917</termId><termName>METANO</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>678</termId><termName>COMBUSTIBLES FÓSILES</termName><termType>ND</termType></relation><relation><relationType>RT</relationType><termId>2412</termId><termName>SECTOR MINEROENERGÉTICO</termName><termType>PT</termType></relation></term>  </Zthes>