PEORIA, Ill. and MOUNT VERNON, Ohio, Dec. 5, 2012 /PRNewswire/ -- Caterpillar Inc. (NYSE: CAT) and Ariel Corporation announced today the formation of a 50-50 joint venture that will provide well service pressure pumping products for customers in the global oil and gas industry. The combined venture, Black Horse LLC, also announced the acquisition of pump manufacturer ProSource of Houston, Texas. Caterpillar is the world's leading manufacturer of diesel and natural gas engines for the generation, control and supply of mechanical and electric power for the marine and petroleum industries. Ariel Corporation is a global leader in the design and manufacture of gas compressors. More than 40,000 Ariel compressors are currently in use throughout the global energy industry to extract, process, transport, store and distribute natural gas from the wellhead to the end-user. The acquisition of ProSource, which designs and manufactures reciprocating pressure pumps, enables Black Horse LLC to serve the well service market. Black Horse LLC will leverage Caterpillar and Ariel engineering and manufacturing expertise to expand ProSource's existing product line to better serve global oil and gas customers. Frac pumps sold through the combined venture will be branded and sold under the Cat name and distributed through the Cat dealer network. "We are thrilled to partner with Ariel to bring our petroleum customers not just a partial solution, but a complete package," said Tom Frake, Caterpillar vice president with responsibility for Marine and Petroleum Power. "Together, with the support of our Cat dealer network, we can provide not only a complete pressure-pumping solution, but also the global parts and service support to maximize up-time throughout the world. This deal significantly improves our capability to meet our oil and gas customers' needs for reliable, sustainable power." Under the arrangement, executives from Caterpillar's Marine and Petroleum Power Division and Ariel Corporation will jointly lead Black Horse LLC.