TPC Group Inc. is a Houston-based processor of intermediate and specialty chemicals, fuel derivatives, and petroleum byproducts. The company operates the HNO Facility near the Houston Ship Channel, along with nine active pipelines spanning 113 miles and various logistics assets across the U.S. Gulf Coast. TPC produces crude C4 byproducts, isobutylene derivatives, and fuels, serving manufacturers of synthetic rubber, lubricants, and plastics. As of 2021, the company reported $1.289 billion in revenue and employed 470 people.