Researchers have developed a high-pressure water-reforming (HPWR) process that produces high-pressure hydrogen from a jet fuel feedstock. Converting petroleum-based fuels to hydrogen for fuel cell use is a unique approach to reducing military petroleum consumption by improving petroleum utilization efficiency. HPWR is an attractive option because, unlike traditional steam methane reforming, it does not require postreformer hydrogen compression and storage. A HPWR apparatus was designed and manufactured. Several catalysts were tested for their ability to produce high-pressure hydrogen from jet fuel. S-8, which is a jet fuel derived from natural gas, was used as a model feedstock for initial experiments because the fuel is sulfur and aromatics free. After optimizing with S-8, JP-8 will be utilized for future experiments. The most promising catalyst produced a product gas stream that contained hydrogen. These experimental results show that HPWR is a promising solution for high-pressure hydrogen production as a key step toward reducing military petroleum use.