Denver-based Mark West Energy Partners L.P. has announced it is to spend about $100m to expand its Javelina hydrogen plant in Corpus Christi, Texas.

The company will begin construction of a steam methane reformer facility at the plant in the fourth quarter and expects to start delivering high purity hydrogen by early 2010. According to Mark West, the plant will produce more than 50 million cubic feet per day of high purity hydrogen, combined with existing facilities.

One of the largest processors of natural gas in the north east, the Mark West expansion is backed by long-term, fee-based supply agreements.

Mark West is a publicly traded partnership with a solid core of midstream assets and a growing number of gas pipeline assets.