| ANADARKO COLOMBIA COMPANY SUCURSAL COLOMBIA |
www.biomax.co |
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| BIOMAX S.A. |
www.biomax.co |
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| BP LATIN AMERICA LLC-SUCURSAL COLOMBIA |
www.bp.com |
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| CANACOL ENERGY COLOMBIA |
www.canacolenergy.co |
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| CEPSA COLOMBIA S.A. |
www.cepsa.com |
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| CHEVRON PETROLEUM COMPANY |
www.chevron.com |
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| CNOOC PETROLEUM COLOMBIA LIMITED |
www.intl.cnoocltd.com |
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| DRUMMOND LTD. |
www.drummondltd.com |
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| EMERALD ENERGY PLC SUCURSAL COLOMBIA |
www.sinochem.com |
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| EXXONMOBIL EXPLORATION COLOMBIA LIMITED |
www.corporate.exxonmobil.com |
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| FRONTERA ENERGY |
www.fronteraenergy.ca |
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| GEOPARK COLOMBIA PN SA SUCURSAL COLOMBIA |
www.geo-park.com |
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| GRAN TIERRA ENERGY COLOMBIA LTD. |
www.grantierra.com |
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| HOCOL S.A. |
www.hocol.com.co |
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| HUPECOL OPERATING CO. LIC. |
www.hupecol.com.co |
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| IHSA CQ EXPLORACIÓN |
www.ihsa.mx |
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| LA LUNA E&P S DE RL SUCURSAL COLOMBIA |
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| LEWIS ENERGY COLOMBIA INC. |
www.lewisenergy.com |
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| MANSAROVAR ENERGY COLOMBIA LTD. |
www.mansarovar.com.co |
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| MAUREL ET PROM COLOMBIA BV |
www.maureletprom.fr |
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| NOBLE ENERGY COLOMBIA LIMITED |
www.nblenergy.com |
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| ONGC VIDESH LIMITED SUCURSAL COLOMBIANA |
www.petromil.com |
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| ORGANIZACIÓN TERPEL SA. |
www.terpel.com |
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| PAREX RESOURCES COLOMBIA LTD. |
www.parexresources.com.co |
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| PERENCO COLOMBIA LIMITED |
www.perenco.com |
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| PETROBRAS COLOMBIA COMBUSTIBLES S.A. |
www.petrobras.com.br |
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| PETRÓLEOS SUD-AMERICANOS SUCURSAL DE COLOMBIA |
www.petroleossudamericanos.com |
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| PETRÓLEOS DEL MILENIO S.A.S |
www.petromil.com |
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| PETROSANTANDER |
www.petrosantander.com |
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| PRIMAX COLOMBIA S.A. |
www.biomax.co |
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| PUMA ENERGY |
www.pumaenergy.com |
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| REPSOL EXPLORACIÓN COLOMBIA S.A. |
www.repsol.com |
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| SHELL COLOMBIA S.A. |
www.shell.com |
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| SIERRACOL ENERGY |
www.sierracolenergy.com |
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| TABASCO OIL COMPANY SUCURSAL COLOMBIA |
www.tabasco-oil.com |
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| TECPETROL COLOMBIA SAS |
www.tecpetrol.com |
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| TRAFIGURA PETROLEUM COLOMBIA S.A.S |
www.trafigura.com |
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| WORLD FUEL SERVICES COMPANY LLC SUCURSAL COLOMBIA |
www.wfscorp.com |
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