J.W. Williams, Inc. is an engineering, fabrication, modular assembly and field service company, skilled and experienced in pr ... ojects related to natural gas and crude oil processing and conditioning. J.W. Williams, Inc. has over 325,000ft² of manufacturing strategically located throughout the US. J.W. Williams, Inc.'s products are designed and manufactured to conform to state, federal and international regulatory codes, safety acts and customer specifications. J.W. Williams, Inc. covers all facets, including conceptual design, process design, mechanical design, detailed drawing preparation, materials procurement, equipment fabrication, assembly, quality control and commissioning. We ensure that all of our products meet the highest quality performance and safety standards. J.W. Williams, Inc. fabrication facility is located in Casper, WY. • Certified Supplier of Process Equipment • Environmental Process Services • Field Services • Inventory Sales of Oil & Gas Processing Equipment • Process Equipment Design & Fabrication • Process Equipment Manufacture for the Oil & Gas Industry • Process Measurement Equipment for the Oil & Gas Industry • Process Plant, Production Unit & Refrigeration and Control Systems • Process, Separation, Dehydration & Refrigeration Systems read more