Ambar Lone Star Fluid Services is a provider of drilling and completion fluid solutions. The company offers a variety of shorebase and warehouse services. It offers a range of drilling and completion fluids designed to meet nearly all kinds of well conditions. Its capabilities include patent pending high-performance water-base mud, Eco-Syn synthetic fluid for deepwater environments, brine completion fluids and specialized drill-in fluids. Additionally, the company provides rentals and specialty services and offers equipment to support clients liquid mud and waste management needs. It provides solutions to lost circulation using the Star Plug crosslink polymer technology. The company uses a particle plugging apparatus of unique design that allows simultaneous testing of the drilling fluid at multiple pressures and permeabilities. Its products include penetration enhancers, high-performance lubricants, high-pressure fluid loss additives, spotting fluids and crosslink polymers. Ambar Lone Star Fluid Services is a subsidiary of Patterson UTI Energy.