The Internet Chamber of Commerce presents Gas & Oil Companies in Houston, TX featuring companies offering petroleum, fuel oil, heating oil and natural gas. About Cico Oil & Gas Company. Cico Oil & Gas Company is a privately held company headquartered in Houston, Texas. Cico offers Frac Stack & Flowback, Drilling, Wireline, Wireline Lubricator, Torque & Test and Mixing Plant/Coil Tubing Chemicals primarily in the Eagleford, Permian, Marcellus/Utica, SCOOP/STACK, and Haynesville shales. Largest Houston-Area Oil Producers Houston Business Journal Feb 16 These numbers do not include barrels produced outside Texas. Companies included are either headquartered in Houston or