Press Releases


April 1, 2011 -- Prototypes of a new fleet of compressed natural gas (CNG) powered buses were unveiled today at Houston City Hall as part of a partnership between the Houston Airport System (HAS) and Houston-based energy giant Apache Corporation in an effort to support the city of Houston's Green Initiative, promote a new environmentally sensitive ecopark facility at George Bush Intercontinental Airport (IAH), and reduce particulate matter and green house gas. Next week at IAH passengers will begin noticing the brightly colored blue busses which will:

  • Transport an estimated 676,000 people annually
  • Operate more than 1 million miles annually
  • Reduce fuel costs by an estimated $2.00/gallon
  • Reduce bus maintenance costs

"Houston is fast setting the example for the rest of the country when it comes to clean-burning fuels and sustainability," said Mayor Annise Parker. "These natural gas powered shuttles will provide dependable transportation at our airport and at the same time help improve the air we breathe. We all benefit from that."

Apache Corporation, a Houston-based oil and gas exploration and production company, has contracted with Clean Energy to design and construct a CNG fueling station which Apache will donate to the city of Houston to be used to support the fueling needs of the airport fleet.

"At Apache, we are convinced that clean-burning natural gas must be a bigger part of the solution to America's ever increasing reliance on imported crude oil, while reducing pollution caused by other, more carbon-intensive fuels used in transportation and power generation," said G. Steven Farris chairman and chief executive officer for Apache

"This conversion of shuttle buses is a leap forward in embracing cleaner technologies at the 7th busiest airport in the United States. The Houston Airport System celebrates this journey as a pioneer – taking a leading role in this green initiative," notes Mario Diaz director of aviation for the city of Houston.

The ecopark facility – which offers the lowest parking rate at Bush Airport – includes 8,500 parking spaces at IAH and 900 spaces at William P. Hobby Airport and is a round-the-clock operation. For more information on ecopark and the new CNG fleet, please visit our website at