Mayco Wellchem was established in 1977 by W.T. (Dub) Corley. The name Mayco is derived from the name of his wife, Mary Corley. He began the company as a wholesaler of reagents, starter materials, used in chemical reactions. In 1990 the company was purchased by Thom Venus, who established Mayco Wellchem as a leader in the manufacture of oilfield specialty chemicals for stimulation, displacement, fracturing and fluid loss control.
Mayco Wellchem has been serving the oil and gas industry for nearly four decades with a reputation built on stability, reliability and professionalism.
| Date | Milestone |
| 1977 | Company founded by W.T. (Dub) Corley as a wholesaler of reagents to the oil and gas sector. |
| 1978-1980 | Overseas operations commence with subsidiary, Oasis, in Libya. |
| 1981 | Current owner, Thom Venus, comes to work for Mayco |
| 1981-1987 | Contract with Halliburton’s IMCO Services for manufacturing of workover and completion fluid line. |
| 1981-1987 | Mayco expands product line world-wide, supplying drilling fluid additive and consulting in South America, Middle-East and the Far East. |
| 1988 | Joint venture with Techni-Fluids, Canadian subsidiary of ICI, providing for the expansion of the completion fluids line. |
| 1990 | Thom Venus purchases Mayco Wellchem. |
| 1991 | Company begins working with Western Company, supplying stimulation additives for their international operations. |
| 1991-1992 | Develops specialized Drill-In fluids formulation for work in the Gulf of Mexico region. |
| 2000 | Tekcor Technology, a full service retail completion fluids company, is established. |
| 2002 | Tekcor develops Tek-Plug (fluid loss control polymer, formerly X-Rocket Wash) |
| 2003 | Designs and patents Tek-Tote delivery system for the Tek-Plug. Product is still in use today. |
| 2006 | Tekcor becomes a major supplier and industry leader in crosslink fluid loss polymers. |
| 2006 | Tekcor is developed and acquired by BJ Services. |
| 2010 | NPO Scientific is established to develop new and improved fluid loss control polymers. |
| 2010 | Highly effective clean up chemicals are developed. |
| 2010 | Initiation of company subsidiary, Mayco Services, to deliver high volume water transfer for fracking and other water management activities. |
| 2014 | Mayco Wellchem aquires NPO Scientific. |
