Methane refinery

Description
The Methane Refinery is a Covenant structure found on the Halo Wars level Relic Approach. The refinery is located on the west of the map. The structure produces methane tanks. Destruction of all refineries removes the Covenants ability to send in dropships (in this level).

A Methane Refinery would, as its name suggests, probably refine methane for packaging in air canisters for the use of Covenant Grunts.

Trivia

 * On the Halo Wars level Relic Approach one of the optional objectives is to destroy the Covenant Methane Refinery.
 * Destroying all the methane tanks earns the player the Endless Fun Achievement.