With over 130 years of experience, KCA Deutag is one of the leading drilling and engineering contractors working onshore and offshore with a focus on safety, quality, and operational performance. KCA Deutag operates 113 drilling rigs in 17 countries either directly or indirectly through affiliates. In June 2022, KCA Deutag announced the acquisition of Saipem SpA’s onshore drilling business including operations in the Middle East, Africa and the Americas. In 2024, KCAD was acquired by H&P, the largest global drilling rig operator.
Tianjin RongHeng Group LLC, founded in 1982 and restructured as a limited liability company in 1999, is a state-recognized high-tech manufacturer based in Ninghe County, Tianjin. Specializing in petroleum drilling and exploitation equipment, the company produces a wide range of products – including electric petroleum-submersible pump units, motors, water-injection pumps, screw pumps, plunger pumps, impellers, and precision casings—which serve major oilfields across China and are also exported to markets such as the U.S., Germany, Russia, Canada, Japan, Singapore, and Indonesia. In 2013, it invested RMB 600 million to establish a modern industrial science-and-technology park spanning 340,000 m², equipped with advanced CNC production lines, inspection instruments, and testing apparatus. The company now boasts an annual production capacity of 5,000 submersible pump units and 8,000 tons of pump accessories, holds over 85 national patents (including several invention patents and one U.S. patent), and employs a robust ERP system with API-standard testing facilities.
AEC and Tianjin Rongheng Group (TRG) have signed a cooperation agreement to jointly execute contracts for Electric Submersible Pumps (ESP). AEC has secured an ESP Services contract in joint partnership with TRG in 2025.
Established in 1981, with operations in Venezuela and Columbia, the company is well known for its state-of-the-art infrastructure and equipment design, enabling it to offer services of the highest standards of security and quality to its clients in the Oil Sector. AEC has a joint venture partnership with CPVEN Venezuela to offer cementing, coiled tubing, and mud engineering services in Kuwait.
China Oilfield Services Limited (COSL) is the leading integrated oilfield services provider in the Asian offshore market. COSL’s four main service divisions—Geophysical Services, Drilling Services, Well Services, and Marine and Transportation Services—cover the exploration, development, and production phases of the oil and gas industry.
KERUI Petroleum & Gas is an international comprehensive industrial group committed to providing customers with one-stop solutions in the oil & gas energy field. KERUI’s marketing service network spans the Asia-Pacific, Central Asia, Middle East, Europe, North America, South America, and Africa, regions encompassing over 52 countries and territories.
Jereh Energy Services Corporation is a wholly-owned subsidiary of Jereh Group, specializing in one-stop, integrated solutions for global oil & gas field exploration and development. Their core offerings include intelligent oilfield systems, geological and reservoir studies, integrated drilling and completion services, stimulation services, production optimization, and field operation & maintenance management.
Gilgamesh Oilfield Services offers a comprehensive range of services spanning the entire lifecycle of oil and gas wells, from construction to production. Their services include Cementing, Coil Tubing, slickline & wireline services, among others.
AEC is in a joint venture with NaftoServe (Turkey). The partnership provides specialized solutions for both the upstream and downstream sectors. The scope includes directional drilling, gyro and electronic magnetic multi-shot surveys, drilling bits, re-entry services, rig accessories, blow-out preventers, inspection services, machine shop services, welding, redressing, and down-hole tool rentals.
The company was initially established in 2007. In 2015, along with the renaming of the company to Expert Optima LLP, a new business approach was introduced, which includes the development of several core activities, including Services in the oil and gas industry, Product supply, and Equipment rental.
