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The Alamo plant began producing Soltex® additives in batch operations in 1978, when it was owned by Chromalloy. The facility was sold in 1983 to Drilling Specialties Company, a subsidiary of Phillips Petroleum. The plant converted to continuous operation in 1987, and since then production capability has increased more than 85 percent.

The Alamo plant is in Conroe, Texas, 46 miles north of Houston. The plant is an ISO 9001 certified facility.

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Product Information

Products produced at our Conroe plant include:

  • Soltex® drilling mud additive


We believe in working safely or not at all. That’s why safety is our top priority at all our facilities. We create products and services that make life better for people around the world — both today and tomorrow. We strive to manufacture, handle, transport and dispose of chemical products 100 percent safely.


Chevron Phillips Chemical is committed to being a good neighbor to the communities where we operate. Part of our corporate vision and mission is to be an employer and neighbor of choice because we care about each other, our work, our customers and our communities. We actively support our neighboring communities through the following programs:

  • United Way of Greater Houston
  • Montgomery County Habitat for Humanity
  • Junior Achievement of Southeast Texas