OGJ reported that Colombia had proven natural gas reserves of 3.7 trillion cubic feet (Tcf) in 2009. The country produced and consumed 255 billion cubic feet (Bcf) in 2006, both slightly higher than 2005. Colombia has natural gas reserves spread across 18 basins, seven of which have active production. The bulk of Colombia's natural gas reserves are located in the Llanos basin, although the Guajira basin accounts for most of current production. According to a Colombian natural gas industry group, the country has sufficient production and reserves to meet domestic demand through at least 2018.

There are some 2,000 miles of natural gas trunk pipelines in Colombia. The three main lines include the Ballena-Barrancabermeja, linking Chevron's Ballena field on the northeast coast to Barrancabermeja in central Colombia; the Barrancabermeja-Nevia-Bogota line, which integrates the Colombian capital into the transmission network, and the Mariquita-Cali line through the western, Andean foothills. There are other small stretches of pipeline operated by private firms. In 2008, natural gas distributor Transoriente announced that it would build a new natural gas pipeline to connect the Gibraltar field with the national network, with a capacity of 30 million cubic feet per day (MMcf/d).

In early 2008, the Antonio Ricaurte pipeline came online, linking northeastern Colombia with Venezuela. Initially, the pipeline will allow Colombia to export natural gas from the Punta Ballenas area to western Venezuela, with contracted volumes ranging from 80-150 MMcf/d. However, current plans call for the flow of the pipeline to be reversed in 2012, with Venezuela exporting 140 MMcf/d of natural gas to Colombia.