Drilling Services

Underground in-seam (UIS) gas drainage operational experts

Drilling expertise backed by scale and capability

Since 2016, Cougar Drilling has grown to become a trusted provider of underground in-seam (UIS) gas drainage services. With over 200 skilled operators and a fleet of 24 drill rigs operating across Australia, we deliver the scale and expertise needed for complex underground environments.

Our state-of-the-art workshops also provide comprehensive overhaul services for customer-owned drill rigs, ensuring peak performance and extended equipment life.

Drilling services

Long-term contracts across NSW and Queensland have positioned Cougar Drilling as a trusted provider in Australia’s coal industry. Backed by a highly skilled workforce and unmatched expertise in pre-drainage and post-drainage (horizontal goaf drainage) drilling, we deliver proven results for our clients.

Our strong relationships are built on performance, safety, and our ability to act as both a service provider and a solutions partner. We continue to invest in safety systems, reporting frameworks, and asset management to meet the immediate and long-term needs of our customers and maintain a competitive, professional presence in the mining industry.

Drilling design and practice.

Cougar Drilling is experienced and fully equipped to manage UIS drilling operations across a wide range of applications. Our expertise covers in-seam exploration, gas drainage drilling, horizontal goaf holes, cross-measure drilling, fault definition, de-watering, and cross-block installations. When borehole designs require greater lengths, diameters, or face challenging geology, we deliver engineered solutions that make complex tasks achievable. With deep technical knowledge and proven capability, Cougar Drilling provides practical answers to the toughest underground drilling challenges.

Drill rig repairs and overhauls


Cougar provides comprehensive overhaul services for customer-owned drill rigs at our state-of-the-art workshop facilities. Our skilled technicians handle mechanical, hydraulic, and electrical overhauls to restore performance, extend equipment life, and ensure compliance with underground mining standards. With ISO9001 and NATA accreditation, we deliver overhauls to the highest quality and safety benchmarks.

Engineering & analytics


Our desire for continuous improvement has been the catalyst for Cougar Group’s rig design and development program. Our commitment to safer operations and the growing need for longer holes in coal, as well as stone, has given rise to innovation and the forging of relationships with technology-driven suppliers. Although innovative,

Cougar Group only combines proven systems and components in the design and construction of a complete rig. Cougar Group rigs and ancillary drilling components work. All engineered and manufactured items are proven through use within our own services business. Our entire business relies on product value, quality and fit-for-purpose design.

Drill rig builds

Cougar delivers purpose-built drill rigs designed for underground in-seam (UIS) gas drainage and other specialised applications. Our engineering team works closely with customers to ensure each rig meets the specific requirements of their operation, with a focus on safety, reliability, and performance in challenging mining environments.

Drill rig part sales

Cougar offers a comprehensive range of high-quality parts to keep your drill rigs performing at their best. From critical components to wear parts, we supply reliable, proven products to support maintenance, repairs, and overhauls. Backed by our technical expertise and workshop capability, we help minimise downtime and extend the life of your equipment.

Down hole motor repairs and sales

Cougar provides expert repairs and servicing for downhole motors, ensuring reliable performance in demanding underground conditions. We also supply a range of high-quality downhole motors, giving customers access to proven solutions that support efficient drilling operations. With experienced technicians and state-of-the-art workshop facilities, we help extend motor life and reduce costly downtime.