| ALCANOS DEL HUILA S.A. E.SP. | 4,678,171 |
| EMPRESA CAUCANA DE GAS S.A. E.S.P. | 396,257 |
| EMPRESA COLOMBIANA DE GAS "ECOGAS" | 15,146,788 |
| GAS NATURAL DEL CENTRO S.A. E.S.P. | 4,268,020 |
| GAS NATURAL DEL CESAR S.A. E.S.P. "GASNACER S.A. E.S.P." | 1,667,648 |
| GAS NATURAL DEL ORIENTE S.A. E.S.P. "GASORIENTE" | 23,922,148 |
| GAS NATURAL S.A E.S.P. | 72,895,750 |
| GASES DE BARRANCABERMEJA S.A. E.S.P. | 4,422,904 |
| GASES DEL CARIBE S.A. E.S.P. | 28,275,294 |
| GASES DEL CESAR S.A. E.S.P. | 522,477 |
| GASES DEL CUSIANA S.A. E.S.P | 909,423 |
| GASES DEL NORTE DEL VALLE S.A. E.S.P. | 1,598,013 |
| GASES DEL ORIENTE S.A. E.S.P. | 1,717,146 |
| GASES DEL QUINDIO E.S.P. | 3,513,690 |
| MAKROGAS S.A. E.S.P. | 416,576 |
| METROGAS DE COLOMBIA S.A. E.SP. | 4,024,850 |
| PETROBRAS COLOMBIA LIMITED | 5,021,719 |
| PROMIGAS S.A. E.S.P. | 39,671,334 |
| TRANSPORTADORA DE METANO S.A. E.S.P. "TRANSMETANO S.A. E.S.P." | 3,421,317 |
| ALMACENADORA DE GAS DE OCCIDENTE S.A E.S.P. | 62,086 |
| ALMAGAS DE MANIZALEZ S.A. E.S.P. | 438,313 |
| ALMALLANO S.A. E.S.P. | 373,567 |
| ALMANSILLA S.A. E.S.P. | 873,884 |
| ALPROGAS S.A. E.S.P. | 1,566,365 |
| ALSABANA S.A E.S.P. | 300,658 |
| ANDINA DE GAS S.A. E.S.P. | 663,755 |
| ANTIOQUEÑA DE GAS S.A E.S.P. "ANDEGAS" | 661,498 |
| AUTOGAS S.A. E.SP. | 454,941 |
| BANCOGAS | 35,538 |
| CALIGAS S.A. E.S.P. | 546,429 |
| CARTAGAS S.A. E.S.P. | 2,110,745 |
| CAZUGAS DE LA SABANA S.A. E.S.P. | 760,769 |
| CENTRO GAS DEL VALLE Y/O GUSTAVO RAMIREZ | 282,683 |
| CENTRO GAS S.A. E.S.P. | 192,186 |
| COLGAS E.S.P. | 11,923,866 |
| COLGAS DE OCCIDENTE S.A E.S.P. | 3,671,249 |
| COMPAÑÍA DE ALMACENAMIENTO DE GAS S.A. E.S.P. "ALMAGAS S.A." | 1,421,525 |
| COMPAÑIAS ASOCIADAS DE GAS S.A. E.S.P. | 2,280,766 |
| CONMIGAS S.A. E.S.P. | 504,028 |
| DISGAS BOGOTA Y CIA S.C.A. E.S.P. | 300,353 |
| DISGAS DEL ATLANTICO S.C.A. E.S.P. | 44,261 |
| DISTRIBUIDORA CENTRAL DE GAS S.A. E.S.P. | 209,596 |
| DISTRIBUIDORA COLOMBIANA DE GAS "DISTRIGAS S.A." | 331,042 |
| DISTRIBUIDORA DE GAS BOYACENSE S.C.A. E.S.P. | 148,698 |
| DISTRIBUIDORA DE GAS IBAGAS S.A. E.S.P. | 961,464 |
| DISTRIBUIDORA DE GAS PITALITO S.A. E.S.P. | 266,879 |
| DISTRIBUIDORA JECA S.A. E.S.P. | 944,894 |
| DISTRIGASES DE GUADUAS S.A. E.S.P. | 115,868 |
| ELECTROGAS S.A. E.S.P. | 414,060 |
| ENVASADORA DE GAS DE PUERTO SALGAR S.A. E.S.P. "ENVAGAS S.A. E.S.P." | 1,538,585 |
| GAS BOYACA S.A. E.S.P. | 444,117 |
| GAS CAQUETA S.A.E.S.P. | 514,902 |
| GAS CORDILLERA S.A. E.S.P. | 268,958 |
| GAS DE LOS ANDES LTDA " ANDIGAS" | 25,810 |
| GAS DE SANTANDER S.A. E.S.P. "GASAN" | 2,489,886 |
| GAS DEL META S.A. E.S.P. | 806,867 |
| GAS DEL RISARALDA S.A. E.S.P. | 3,890,769 |
| GAS EL CONDOR S.A. | 507,910 |
| GAS EL SOL S.A. E.S.P. | 152,851 |
| GAS EXTRARAPIDO DE COLOMBIA S.A. E.S.P | 115,684 |
| GAS GUALIVA S.A. E.S.P. | 217,661 |
| GAS GUAVIARE S.A. E.S.P. | 359,451 |
| GAS LICUADO DEL PETROLEO NORANTIOQUIA S.A. E.S.P. | 2,508,327 |
| GAS NEIVA S.A. E.S.P. | 112,898 |
| GAS ROSARIO S.A. E.S.P. | 1,028,996 |
| GAS SOATA S.A E.S.P | 260,533 |
| GAS SUMAPAZ S.A. E.S.P. | 176,471 |
| GAS TOCAIMA S.A. E.S.P | 178,164 |
| GAS WILCHES LTDA | 29,265 |
| GAS ZIPA S.A. E.S.P. | 1,593,498 |
| GASES DE GIRARDOT S.A. "GIRAGAS" | 292,063 |
| GASES DE LA DORADA S.A. E.S.P. | 182,854 |
| GASES DE MEDELLIN Y RIONEGRO S.A. E.S.P. GAS MEDELLIN S.A. E.S.P. | 662,494 |
| GASES DEL CAGUAN S.A. E.S.P | 121,945 |
| GASES DEL META GAS PUERTO LOPEZ S.A. E.S.P. | 284,210 |
| GASES DEL TOLIMA S.A. E.S.P. | 94,290 |
| GASES DEL VALLE Y/O GUSTAVO RAMIREZ | 336,219 |
| GASPAIS S.A. E.S.P. | 108,592 |
| GOMEZ GALVIS " GAS PALMIRA S.A. E.S.P." | 263,620 |
| GRANADOS FAJARDO Y CIA S.C.A. E.S.P. | 1,593,232 |
| GRANADOS GOMEZ Y CIA S.A. E.SP. | 1,243,616 |
| GRUPO GASES DE CALDAS S.A. E.S.P. | 1,676,882 |
| INDUSTRIAS PROVEEDORAS DE GAS LTDA "PROGAS" | 496,393 |
| INTERGASES DEL PACIFICO S.A. E.S.P. | 623,163 |
| INTERMUNICIPAL DE GAS S.A. E.S.P. "INTERGAS S.A." | 91,137 |
| ISAGAS S.A. E.S.P. | 295,672 |
| JUVIGAS S.A. E.S.P. | 171,506 |
| LIDAGAS S.A. E.S.P. | 742,493 |
| LLAMAGAS S.A. E.S.P. | 307,102 |
| MADIGAS INGENIEROS S.A. E.S.P | 266,150 |
| MARCHAGAS DE CALDAS S.A. E.S.P. | 36,755 |
| MONTAGAS S.A. E.S.P. | 2,593,815 |
| NORTESANTANDEREANA DE GAS S.A. E.S.P. | 3,254,351 |
| ORDUGAS -CIROGAS S.A. E.S.P. | 248,115 |
| PLANIGAS S.A. E.S.P. | 67,378 |
| PLANTA PURIGAS S.A. E.S.P. | 57,163 |
| RAYCO GAS S.A. E.S.P. | 1,192,558 |
| RIOGAS S.A. E.S.P. | 235,966 |
| SAN ANDRES GAS S.A. E.S.P. "SAN GAS S.A. E.S.P." | 241,251 |
| SODIGAS S.A. E.S.P. | 35,012 |
| SOLGAS S.A. E.S.P. | 420,905 |
| SURIGAS S.A. E.S.P. | 282,900 |
| TERPEL DEL CENTRO S.A. | 120,743 |
| UNIGAS DE LA SABANA S.A. E.S.P. | 1,637,953 |
| UNIGAS DEL PACIFICO S.A. E.S.P | 1,070,131 |
| UNION DE DISTRIBUIDORES DE GAS "UNDIGAS" S.A. E.S.P. | 920,077 |
| VELOGAS DE OCCIDENTE S.A. E.S.P. | 274,181 |
| VELOGAS S.A. E.S.P | 371,297 |
| VILLAGAS S.A. E.S.P. | 195,423 |