AJ Lucas Group Limited is a drilling services company based in North Sydney, Australia. The company operates in two segments: drilling and oil and gas, serving the energy, mining, and infrastructure sectors. The drilling segment provides integrated professional drilling services primarily for coal mines' exploration and degasification, including recovery and commercialization of coal seam gas and associated services. The oil and gas segment engages in developing, exploring, and commercializing unconventional and conventional hydrocarbons in the United Kingdom. AJ Lucas Group Limited was established in 1993 and is a subsidiary of Kerogen Investments No. 1 (HK) Limited.