Patterson-Uti Energy

Ulterra Drilling Technologies, L.P. is a manufacturer and supplier of polycrystalline diamond (PDC) drill bits and downhole tools for the oil and gas drilling industry, serving both North American and international markets. Founded in 1927 and based in Fort Worth, Texas, Ulterra provides a range of products including steel and matrix PDC bits, as well as specialized tools like the Torkbuster, which addresses torque and stick-slip issues, and the Trugauge, a near-bit stabilizer. The company is noted for its high-quality, high-performance drilling solutions, leveraging the expertise of industry veterans to innovate and respond swiftly to customer needs with the latest technology.

NexTier Oilfield Solutions Inc. is a U.S.-based oilfield services company specializing in well completion and production services across various active basins. The company operates through two primary segments. The Completion Services segment offers hydraulic fracturing, wireline, and pump-down services, aimed at enhancing oil and natural gas production from formations with limited permeability. The Well Construction and Intervention Services segment provides cementing and coiled tubing services, utilizing custom-engineered equipment to ensure accurate annulus isolation and hydraulic sealing, while also offering technical guidance for optimizing well performance. NexTier serves a diverse clientele, including integrated and large independent oil and natural gas exploration and production companies, with a significant presence in West Texas and additional operations in the Northeast, Central, and international regions. Founded in 1973 and headquartered in Houston, Texas, NexTier is committed to delivering effective solutions tailored to the needs of its customers.

Pioneer Energy Services Corp. is a provider of land-based drilling and production services tailored for oil and gas exploration and production companies. Established in 1968 and headquartered in San Antonio, Texas, the company operates a modern fleet that includes 17 AC rigs in the United States and 8 SCR rigs in Colombia. Pioneer specializes in contract land drilling services across several key regions, including the Marcellus/Utica, Permian Basin, Eagle Ford, and Bakken, as well as providing well and wireline services primarily in Texas, the Mid-Continent, and Rocky Mountain regions. The company also has a fleet comprising 111 rigs with 550 horsepower, 12 rigs with 600 horsepower, and 82 wireline units, enhancing its operational capabilities. In addition to drilling services, Pioneer offers advanced coiled tubing units, supporting its production services for independent and major oil and gas companies.

Seventy Seven Energy Inc. is a diversified oilfield services company based in Oklahoma City, Oklahoma, specializing in a variety of wellsite services and equipment for land-based exploration and production customers across the United States. The company operates through three main segments: Drilling, Hydraulic Fracturing, and Oilfield Rentals. The Drilling segment focuses on land-based drilling services, while the Hydraulic Fracturing segment provides well stimulation services, including hydraulic fracturing. The Oilfield Rentals segment offers a range of rental tools necessary for drilling, completion, and workover activities, such as drill pipes, blowout preventers, and frac tanks. Additionally, this segment provides air drilling and flowback services, as well as water transfer services to well sites. Seventy Seven Energy operates a substantial fleet, which includes numerous drilling rigs and hydraulic fracturing units. Founded in 2011, the company operates independently and is known for its comprehensive service offerings in the competitive U.S. oilfield sector.

Warrior Rig Technologies specializes in the design, manufacturing, and servicing of high-spec rig components and advanced pipe handling equipment. The company provides a range of products, including electric and hydraulic top drives, automated tubular tongs, and draw-works. In addition to manufacturing these components, Warrior Rig Technologies offers repair and servicing solutions, ensuring that clients have access to reliable and efficient rig equipment. By focusing on safety and cost-effectiveness, the company aims to help its clients overcome the challenges of the oil and gas industry.

TMBR/ Sharp Drilling is a privately held company engages in the domestic onshore contract drilling of oil and gas wells.

Jones Drilling is a privately owned company engages in manufacturing and distribution of well drilling services.

High Valley Drilling is a privately held drilling company engaged in drilling services.

Wek Drilling is a privately held drilling company that provides drilling services.

Norton Drilling Services is a privately held company operates oil and gas drilling rigs and provides contract drilling services.

Tejas Drilling Fluids is a privately held company that engages in oil field drilling fluids.

Lone Star Mud is a privately held company that produces oil field drilling fluids.