J-W Operating Co. designs, manufactures and distributes natural gas compression. It focuses on natural gas compression, gathering, exploration, production and gas measurement. The firm operates in Texas, Louisiana, Oklahoma, Arkansas, New Mexico, Kansas, Colorado, Utah, Wyoming, California, Montana, Kentucky, West Virginia, Ohio, Pennsylvania and North Dakota. The company was founded in November 10, 1960 by Howard George Westerman and Thomas Jeffrey and is headquartered in Addison, TX.