HH meaning in oil and gas

Henry Hub is the pricing point for natural gas futures contracts traded on the New York Mercantile Exchange (NYMEX). It is a point on the natural gas pipeline system in Erath, Louisiana. It is owned by Sabine Pipe Line LLC. It interconnects with nine interstate and four intrastate pipelines: Acadian, Columbia Gulf Transmission, Gulf South Pipeline, Bridgeline, NGPL, Sea Robin, Southern Natural Pipeline, Texas Gas Transmission, Transcontinental Pipeline, Trunkline Pipeline, Jefferson Island, and Sabine. The two compressor stations can compress 520,000 decatherm/d (6.3 GW). The transportation capacity is 1.8 billion ft³/d (bcf) (590 m³/s) (20.4 GW) (Sabine Pipe Line, LLC, 2000). Spot and future prices set at Henry Hub are denominated in $/mmbtu (millions of British thermal units) and are generally seen to be the primary price set for the North American natural gas market. North American unregulated wellhead and burnertip natural gas prices are closely correlated to those set at Henry Hub. The area surrounding the Henry Hub was affected by the flooding and storm surge from Hurricanes Ike[1] and Rita[2], but the facility suffered minimal damage. Taken from Wikipedia, Feb 2010