TMCo Inc.


TMCo Operating, LLC  is a Delaware Limited Liability company specializing in the manufacture of orifice fittings for the measurement of natural gas. The company was founded in September 2003 and has manufacturing facilities in Wewoka, Oklahoma; and sales and administrative offices in Houston, Texas. TMCo has a world wide network of sales representatives. TMCo is ISO 2001 certified and our products are CRN approved and conform to all applicable industry standards.


Our current product line consists of the SURE SHOT® Dual Chamber orifice fitting in 2”, 3”, 4”, 6”, 8”, 10”, 12”, 16” sizes and SURE SHOT® Single Chamber orifice fitting in 2”, 3”, 4” and 6” sizes and are available in 150, 300 and 600 ANSI ratings. Compared to other orifice fittings on the market, the “Sure-Shot” is simpler, safer and more economical to operate. The SURE SHOT® orifice fitting design meets or exceeds the guideline specifications, under the AGA3/API 14.3 & ISO 5167 standards for manufacturing custody transfer differential products for both the domestic and international market.

Our facility in Wewoka, Oklahoma, has grown to over 75,000 sq. ft. This facility houses all necessary machinery and equipment to support manufacturing of the Sure Shot Dual and Single chamber orifice fitting products. With our skilled work force in Oklahoma we manage all product assembly, testing and quality control functions, as well as warehousing and inventory control.


TMCo Inc. has over 100,000 Sure Shot Dual and Single Chamber Orifice Fittings installed worldwide!